@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:400;src:url(/heatstack/_astro/manrope-latin-400-normal.PaqtzbVb.woff2)format("woff2")}@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:600;src:url(/heatstack/_astro/manrope-latin-600-normal.4f0koTD-.woff2)format("woff2")}@font-face{font-family:Manrope;font-style:normal;font-display:swap;font-weight:700 800;src:url(/heatstack/_astro/manrope-latin-700-normal.BZp_XxE4.woff2)format("woff2")}@font-face{font-family:Noto Sans SC;font-style:normal;font-display:swap;font-weight:400;src:url(/heatstack/_astro/noto-sans-sc-chinese-simplified-400-normal.Ba7eOkfT.woff2)format("woff2")}@font-face{font-family:Noto Sans SC;font-style:normal;font-display:swap;font-weight:500 600;src:url(/heatstack/_astro/noto-sans-sc-chinese-simplified-500-normal.z_irmif2.woff2)format("woff2")}@font-face{font-family:Noto Sans SC;font-style:normal;font-display:swap;font-weight:700 800;src:url(/heatstack/_astro/noto-sans-sc-chinese-simplified-700-normal.DoUziBww.woff2)format("woff2")}:root{--paper:#f3efe7;--surface:#fffdf8;--ink:#20211f;--muted:#5f605b;--line:#d8d2c7;--line-strong:#bbb3a5;--heat:#b7431f;--heat-soft:#fff0e8;--cool:#236b8e;--cool-soft:#eaf4f8;--safe:#116b4d;--review:#965000;--danger:#9c2d24;--radius:10px;--shadow:0 12px 30px #312a2014;--max:1180px;--wide:1440px;color:var(--ink);background:var(--paper);font-family:Manrope,Noto Sans SC,system-ui,sans-serif;font-size:15px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);margin:0;line-height:1.65}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{color:inherit}img,svg{max-width:100%}.shell{width:min(calc(100% - 40px),var(--max));margin:auto}.shell-wide{max-width:var(--wide)}.skip-link{z-index:100;background:var(--ink);color:#fff;padding:8px 12px;position:fixed;top:-60px;left:12px}.skip-link:focus{top:12px}.site-header{z-index:30;border-bottom:1px solid var(--line);background:var(--paper);height:56px;position:sticky;top:0}.header-inner{height:100%;width:min(calc(100% - 32px),var(--wide));grid-template-columns:1fr auto 1fr;align-items:center;margin:auto;display:grid}.brand{justify-self:start;align-items:center;gap:9px;display:flex}.brand-mark{background:var(--ink);color:#fff;border-radius:5px;place-items:center;width:28px;height:28px;font-weight:700;display:grid}.brand span:last-child{line-height:1.05;display:grid}.brand strong{letter-spacing:.03em;font-size:.86rem}.brand small{color:var(--muted);margin-top:3px;font-size:.8rem}.site-header nav{height:100%;display:flex}.site-header nav a{color:#4e4f4a;border-left:1px solid #0000;border-right:1px solid #0000;align-items:center;padding:0 18px;font-size:.84rem;display:flex}.site-header nav a:hover{color:var(--ink);border-color:var(--line);background:#ffffff73}.lang-switch{border:1px solid var(--line-strong);background:var(--surface);border-radius:4px;justify-self:end;padding:4px 9px;font-size:.8rem}h1,h2,h3,p{margin-top:0}h1{letter-spacing:-.035em;margin-bottom:18px;font-size:clamp(2.15rem,4vw,2.8rem);line-height:1.13}h2{letter-spacing:-.025em;font-size:clamp(1.55rem,2.6vw,2rem);line-height:1.2}h3{font-size:1.15rem;line-height:1.3}.eyebrow{letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:14px;font-size:.8rem;font-weight:700;display:block}.button{border:1px solid var(--line-strong);cursor:pointer;background:var(--surface);border-radius:6px;justify-content:center;align-items:center;gap:7px;min-height:38px;padding:7px 14px;font-size:.8rem;font-weight:600;display:inline-flex}.button:hover{transform:translateY(-1px);box-shadow:0 5px 14px #2d282117}.button:disabled{opacity:.55;cursor:not-allowed}.button-primary{background:var(--ink);border-color:var(--ink);color:#fff}.button-subtle{background:0 0}.hero-actions{flex-wrap:wrap;gap:9px;display:flex}.home-hero h1{max-width:760px}.hero-lead,.page-intro p{color:#565752;max-width:700px;font-size:1.02rem}.home-hero blockquote{border-left:1px solid var(--heat);color:#454641;background:#fffdf88c;margin:4px 0 0;padding:24px;font-family:Noto Sans SC,sans-serif}.home-hero blockquote span{color:var(--heat);margin-right:5px;font-size:2rem;line-height:.5}.capability-chain{border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong);grid-template-columns:repeat(6,1fr);margin-top:54px;display:grid}.capability-chain div{border-right:1px solid var(--line);gap:3px;padding:15px 12px;display:grid}.capability-chain div:last-child{border-right:0}.capability-chain b{color:var(--heat);font-size:.8rem}.capability-chain span{font-size:.8rem}.home-doors{padding:40px 0 64px}.two-doors{border:1px solid var(--line-strong);background:var(--surface);grid-template-columns:1fr 1fr;display:grid}.door{min-height:330px;padding:34px;position:relative;overflow:hidden}.door+.door{border-left:1px solid var(--line-strong)}.door>span{letter-spacing:.13em;color:var(--muted);font-size:.8rem}.door h2{margin:62px 0 12px}.door p{max-width:520px;color:var(--muted)}.door a{font-size:.82rem;font-weight:700}.door-hot a{color:var(--heat)}.door-cool a{color:var(--cool)}.mini-index,.mini-blueprint{opacity:.7;width:40%;height:74px;position:absolute;top:26px;right:26px}.mini-index{gap:6px;display:grid}.mini-index i{border-top:2px solid var(--heat);transform-origin:100%}.mini-index i:nth-child(2){width:72%;margin-left:auto}.mini-index i:nth-child(3){width:85%}.mini-index i:nth-child(4){width:55%;margin-left:auto}.mini-blueprint{border:1px solid var(--cool);background-color:#0000;background-image:linear-gradient(90deg,#0000 49%,#236b8e33 50%,#0000 51%),linear-gradient(#0000 49%,#236b8e33 50%,#0000 51%);background-position:0 0,0 0;background-repeat:repeat,repeat;background-size:16px 16px;background-attachment:scroll,scroll;background-origin:padding-box,padding-box;background-clip:border-box,border-box}.mini-blueprint i{border:2px solid var(--cool);border-radius:50%;width:12px;height:12px;position:absolute}.mini-blueprint i:first-child{top:44%;left:12%}.mini-blueprint i:nth-child(2){top:18%;left:48%}.mini-blueprint i:nth-child(3){bottom:12%;right:10%}.home-note{color:var(--muted);padding-bottom:36px;font-size:.8rem}.page-intro{border-bottom:1px solid var(--line);padding:56px 0 42px}.intro-grid{grid-template-columns:1.35fr .65fr;gap:70px;display:grid}.intro-grid ol{border-top:1px solid var(--line-strong);margin:4px 0 0;padding:0;list-style:none}.intro-grid ol li{border-bottom:1px solid var(--line);gap:14px;padding:9px 0;font-size:.8rem;display:flex}.intro-grid li b{color:var(--heat);font-size:.8rem}.catalog-section{padding:24px 0 80px}.catalog-status{border:1px solid var(--line);background:var(--surface);color:var(--muted);align-items:center;gap:8px;padding:8px 10px;font-size:.8rem;display:flex}.catalog-search{gap:10px;margin:10px 0;display:flex}.catalog-search>input{border:1px solid var(--line-strong);background:var(--surface);outline:none;width:100%;height:40px;padding:0 13px}.catalog-search>input:focus{border-color:var(--ink)}.catalog-grid{border-top:1px solid var(--line-strong);grid-template-columns:190px minmax(520px,1fr) 270px;align-items:start;display:grid}.catalog-filters{padding:16px 16px 16px 0;position:sticky;top:70px}.filter-stack{gap:12px;display:grid}.filter-stack label{color:var(--muted);gap:4px;font-size:.8rem;font-weight:700;display:grid}.filter-stack select{border:1px solid var(--line);background:var(--surface);height:34px;color:var(--ink);padding:0 8px}.category-index{border-top:1px solid var(--line);padding-top:8px;display:grid}.category-index button{text-align:left;cursor:pointer;background:0 0;border:0;align-items:center;gap:7px;padding:6px 5px;font-size:.8rem;display:flex}.category-index button:hover,.category-index button.active{background:var(--surface)}.category-index i{border-radius:50%;width:8px;height:8px}.rank-table{border-left:1px solid var(--line-strong);border-right:1px solid var(--line-strong)}.rank-item{--category:#777;border-bottom:1px solid var(--line);cursor:pointer;background:#fffdf8a8;grid-template-columns:28px 42px minmax(0,1fr) 78px 58px 16px;align-items:center;gap:8px;min-height:84px;padding:9px 10px;display:grid;position:relative}.rank-item:before{content:"";background:var(--category);opacity:.45;width:3px;position:absolute;top:0;bottom:0;left:-1px}.rank-item:hover,.rank-item.is-active{background:var(--surface)}.rank-item.is-active:before{opacity:1}.select-box{cursor:pointer;place-items:center;display:grid}.select-box input{opacity:0;position:absolute}.select-box span{border:1px solid var(--line-strong);background:#fff;border-radius:3px;width:15px;height:15px}.select-box input:checked+span{background:var(--ink);box-shadow:inset 0 0 0 3px #fff}.select-box input:disabled+span{opacity:.55;background:#eee}.rank-index{color:var(--category);font-variant-numeric:tabular-nums;font-size:.8rem;font-weight:800}.rank-main{min-width:0}.rank-main>div{align-items:baseline;gap:8px;display:flex}.rank-main strong{text-overflow:ellipsis;white-space:nowrap;font-size:.86rem;overflow:hidden}.category-chip{white-space:nowrap;font-size:.8rem;font-weight:700}.rank-main p{color:#686963;white-space:nowrap;text-overflow:ellipsis;margin:3px 0;font-size:.8rem;overflow:hidden}.rank-main small{color:#85857d;white-space:nowrap;text-overflow:ellipsis;font-size:.8rem;display:block;overflow:hidden}.risk{font-weight:700}.risk-low{color:var(--safe)}.risk-review{color:var(--review)}.risk-high,.risk-blocked{color:var(--danger)}.spark{width:76px;height:30px}.spark polyline{fill:none;stroke-width:1.6px;vector-effect:non-scaling-stroke}.heat-score{text-align:right}.heat-score b{color:var(--heat);font-variant-numeric:tabular-nums;font-size:.9rem;display:block}.heat-score span{color:var(--muted);letter-spacing:.1em;font-size:.8rem;display:block}.preview-rail{padding:18px 0 18px 18px;position:sticky;top:70px}.preview-kicker{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;align-items:center;gap:7px;font-size:.8rem;display:flex}.preview-kicker span{width:12px;height:3px}.preview-rail h2{margin:12px 0 8px;font-size:1.25rem}.preview-rail>p,.preview-rail section p{color:var(--muted);font-size:.8rem}.preview-rail section{border-top:1px solid var(--line);padding:13px 0}.preview-rail h3{text-transform:uppercase;letter-spacing:.08em;margin-bottom:7px;font-size:.8rem}.preview-rail code{font-size:.8rem}.signal-bars{gap:6px;display:grid}.signal-bars>div{color:var(--muted);grid-template-columns:82px 1fr 24px;align-items:center;gap:6px;font-size:.8rem;display:grid}.signal-bars b{background:var(--heat);height:100%;display:block}.text-link{color:var(--cool);align-items:center;gap:4px;font-size:.8rem;font-weight:700;display:inline-flex}.empty-state{text-align:center;color:var(--muted);padding:32px}.mobile-filters{display:none}.selection-tray{z-index:40;border:1px solid var(--line-strong);width:min(100% - 32px,920px);box-shadow:var(--shadow);background:#fffdf8;border-radius:8px;align-items:center;gap:8px;padding:9px;display:flex;position:fixed;bottom:18px;left:50%;transform:translate(-50%)}.selection-tray b{font-size:.8rem}.selection-tray em{color:var(--danger);font-size:.8rem;font-style:normal}.terminal-card{border:1px solid var(--line-strong);color:#e9eadf;box-shadow:var(--shadow);background:#21231f;border-radius:8px;overflow:hidden}.terminal-card>div{border-bottom:1px solid #3a3c36;align-items:center;gap:5px;height:34px;padding:0 10px;display:flex}.terminal-card>div i{background:#76796d;border-radius:50%;width:7px;height:7px}.terminal-card>div i:first-child{background:var(--heat)}.terminal-card>div span{color:#9da095;margin-left:6px;font-size:.8rem}.terminal-card code{white-space:normal;padding:7px 12px;font-size:.8rem;display:block}.terminal-card code b{color:#65a9c6}.manual-section{padding:52px 0 80px}.manual-grid{grid-template-columns:1fr 1fr;gap:70px;display:grid}.manual-grid article p{color:var(--muted)}pre{color:#edf0e6;background:#252721;border-radius:6px;padding:14px;font-size:.8rem;overflow:auto}.manual-grid ol{border-top:1px solid var(--line-strong);margin:0;padding:0;list-style:none}.manual-grid li{border-bottom:1px solid var(--line);gap:20px;padding:12px 0;font-size:.82rem;display:flex}.manual-grid li b{color:var(--cool);font-size:.8rem}.site-footer{width:min(calc(100% - 40px),var(--max));border-top:1px solid var(--line-strong);justify-content:space-between;gap:20px;margin:auto;padding:28px 0 42px;display:flex}.site-footer div{display:grid}.site-footer span,.site-footer p{color:var(--muted);font-size:.8rem}.site-footer p{margin:0}.detail-wrap{padding:52px 0 80px}.detail-head{border-bottom:1px solid var(--line-strong);justify-content:space-between;gap:30px;padding-bottom:24px;display:flex}.detail-head h1{margin:10px 0;font-size:clamp(2rem,4vw,2.65rem)}.detail-grid{grid-template-columns:1.4fr .6fr;gap:24px;margin-top:24px;display:grid}.detail-panel{background:var(--surface);border:1px solid var(--line);padding:20px}.detail-panel h2{font-size:1.25rem}.metadata{grid-template-columns:repeat(2,1fr);gap:10px;display:grid}.metadata div{border-top:1px solid var(--line);padding-top:8px}.metadata dd{overflow-wrap:anywhere;margin:2px 0;font-size:.8rem}.file-tree li{border-bottom:1px solid var(--line);justify-content:space-between;gap:16px;padding:7px 0;font-size:.8rem;display:flex}.muted{color:var(--muted)}@media (width<=1050px){.catalog-grid{grid-template-columns:170px 1fr}.preview-rail{display:none}.home-hero-grid{gap:35px}}@media (width<=760px){.shell{width:min(calc(100% - 24px),var(--max))}.header-inner{grid-template-columns:1fr auto}.site-header nav{display:none}.home-hero{padding-top:48px}.home-hero-grid,.intro-grid,.two-doors,.manual-grid,.detail-grid{grid-template-columns:1fr}.home-hero-grid{gap:28px}.home-hero blockquote{font-size:.86rem}.capability-chain{grid-template-columns:repeat(3,1fr)}.capability-chain div:nth-child(3n){border-right:0}.two-doors .door+.door{border-left:0;border-top:1px solid var(--line-strong)}.page-intro{padding:40px 0 28px}.intro-grid{gap:25px}.catalog-grid{grid-template-columns:1fr}.catalog-filters{display:none}.rank-table{border-left:1px solid var(--line-strong)}.mobile-filters{display:block;position:relative}.mobile-filters summary{border:1px solid var(--line-strong);background:var(--surface);align-items:center;gap:6px;height:40px;padding:0 12px;font-size:.8rem;list-style:none;display:flex}.mobile-filters[open] .filter-stack{background:var(--surface);border:1px solid var(--line-strong);width:min(300px,100vw - 24px);box-shadow:var(--shadow);z-index:20;padding:14px;position:absolute;top:44px;right:0}.rank-item{grid-template-columns:25px 36px minmax(0,1fr) 48px 13px}.rank-item .spark{display:none}.selection-tray{flex-wrap:wrap;bottom:8px}.selection-tray>div{width:100%}.selection-tray .button{flex:1;padding:6px}.detail-head{display:grid}.metadata{grid-template-columns:1fr}.site-footer{width:calc(100% - 24px)}}.learn-intro blockquote{border-left:1px solid var(--cool);background:var(--cool-soft);margin:0;padding:20px;font-size:.9rem}.learn-index{padding:32px 0 84px}.diagnostic-lab{border:1px solid var(--line-strong);background:var(--surface);grid-template-columns:.9fr 1.1fr;gap:32px;padding:24px;display:grid}.diagnostic-lab h2{margin:10px 0;font-size:1.45rem}.diagnostic-lab p{color:var(--muted);font-size:.82rem}.recommendation{border-left:1px solid var(--cool);background:var(--cool-soft);gap:7px;margin-top:18px;padding:14px;display:grid}.recommendation span{color:var(--muted);font-size:.8rem}.recommendation b{font-size:.9rem}.recommendation a{justify-self:start}.diagnostic-questions{display:grid}.diagnostic-questions label{border-bottom:1px solid var(--line);gap:10px;padding:11px 0;font-size:.8rem;display:flex}.diagnostic-questions input{accent-color:var(--cool)}.learn-progress-head{justify-content:space-between;align-items:end;margin:54px 0 18px;display:flex}.learn-progress-head h2{margin:0}.learn-progress-head>b{color:var(--cool)}.course-grid{border-top:1px solid var(--line-strong);border-left:1px solid var(--line-strong);grid-template-columns:repeat(3,1fr);display:grid}.course-card{border-right:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong);background:#fffdf8a6;flex-direction:column;min-height:225px;padding:18px;display:flex}.course-card>span{color:var(--cool);letter-spacing:.08em;font-size:.8rem}.course-card h3{margin:26px 0 8px;font-size:1rem}.course-card p{color:var(--muted);font-size:.8rem}.course-card>div{justify-content:space-between;align-items:center;margin-top:auto;display:flex}.course-card button,.course-card a{cursor:pointer;background:0 0;border:0;align-items:center;gap:5px;padding:0;font-size:.8rem;display:flex}.course-card a{color:var(--cool);font-weight:700}.course-shell{width:min(100% - 40px,1280px);margin:auto;padding:24px 0 90px}.course-topbar{border-bottom:1px solid var(--line-strong);color:var(--muted);justify-content:space-between;padding:10px 0 20px;font-size:.8rem;display:flex}.course-shell>h1{max-width:850px;margin:44px 0 12px;font-size:clamp(2rem,4vw,2.75rem)}.course-shell>blockquote{border-left:1px solid var(--cool);background:var(--cool-soft);max-width:850px;margin:0 0 44px;padding:14px 18px;font-size:.85rem}.course-shell>h2{max-width:850px;font-size:1.3rem}.course-shell>p{max-width:850px;color:var(--muted)}.lesson-stage{border-top:1px solid var(--line-strong);padding:30px 0 44px;scroll-margin-top:72px}.lesson-stage>header{align-items:baseline;gap:18px;margin-bottom:18px;display:flex}.lesson-stage>header span{color:var(--cool);letter-spacing:.08em;font-size:.8rem}.lesson-stage>header h2{margin:0;font-size:1.55rem}.stage-grid{grid-template-columns:55fr 45fr;align-items:start;gap:28px;display:grid}.theory-pane{border-right:1px solid var(--line);min-width:0;padding-right:18px}.practice-pane{background:var(--surface);border:1px solid #bfd5df;min-width:0;max-height:calc(100vh - 94px);padding:18px;position:sticky;top:76px;overflow:auto}.theory-content>p,.theory-content>ul,.theory-content>ol{color:#4e4f4a;max-width:720px;font-family:Noto Sans SC,sans-serif}.theory-content h3,.practice-content h3{margin-top:20px;font-size:1rem}.lab-block{border-top:1px solid var(--line);margin:13px 0;padding-top:11px}.lab-block>b,.interview-callout>b{letter-spacing:.08em;text-transform:uppercase;color:var(--cool);margin-bottom:8px;font-size:.8rem;display:block}.lab-block pre,.practice-pane pre{color:#eef2e6;background:#232620;margin:7px 0;padding:12px;font-size:.8rem}.prompt-block pre{border-left:1px solid var(--heat)}.expected-output{background:#eef7f1;border:1px solid #c6dfd0;padding:11px}.acceptance{background:#f5f7f8;border:1px solid #d7e1e5;padding:11px}.flow-diagram{border:1px solid var(--line);background:var(--surface);margin:24px 0;padding:16px}.flow-diagram figcaption{margin-bottom:12px;font-size:.8rem}.flow-diagram>div{align-items:center;gap:7px;padding-bottom:5px;display:flex;overflow:auto}.flow-step{border:1px solid var(--line);text-align:center;gap:3px;min-width:92px;padding:9px;font-size:.8rem;display:grid}.flow-step i{color:var(--heat);font-size:.8rem;font-style:normal}.flow-step-wrap>b{color:var(--cool)}.flow-diagram small{color:var(--muted);margin-top:8px;font-size:.8rem;display:block}.annotated-figure{border:1px solid var(--line);background:var(--surface);color:var(--cool);grid-template-columns:220px 1fr;align-items:center;margin:24px 0;padding:12px;display:grid}.annotated-figure svg{width:220px}.annotated-figure circle{fill:var(--surface);stroke:currentColor;stroke-width:1px}.annotated-figure text{fill:currentColor;font-size:3.3px}.annotated-figure figcaption{color:var(--ink);display:grid}.annotated-figure figcaption span{color:var(--muted);font-size:.8rem}.interview-callout{border-left:1px solid var(--heat);background:var(--heat-soft);margin:14px 0;padding:13px}.course-nav{border-top:1px solid var(--line-strong);justify-content:space-between;gap:12px;padding-top:28px;display:flex}.course-nav a{color:var(--cool);font-size:.8rem;font-weight:700}@media (width<=900px){.course-grid{grid-template-columns:repeat(2,1fr)}.stage-grid{grid-template-columns:1fr}.theory-pane{border-right:0;padding-right:0}.practice-pane{max-height:none;position:static}.annotated-figure{grid-template-columns:180px 1fr}}@media (width<=650px){.diagnostic-lab{grid-template-columns:1fr;padding:18px}.course-grid{grid-template-columns:1fr}.course-shell{width:calc(100% - 24px)}.lesson-stage>header{gap:4px;display:grid}.annotated-figure{grid-template-columns:1fr}.annotated-figure svg{width:100%}.flow-diagram>div{align-items:stretch}.course-nav{display:grid}}:root{--muted:#5f605b;--heat:#b7431f;--review:#965000;--safe:#116b4d;--danger:#9c2d24}.sr-only{clip:rect(0, 0, 0, 0)!important;white-space:nowrap!important;border:0!important;width:1px!important;height:1px!important;margin:-1px!important;padding:0!important;position:absolute!important;overflow:hidden!important}:where(a,button,input,select,summary,[tabindex]):focus-visible{outline-offset:3px;outline:3px solid #176b96}.button{min-height:44px;font-size:13px}.header-actions{justify-self:end;align-items:center;gap:8px;display:flex}.desktop-nav a[aria-current=page]{color:var(--ink);background:var(--surface);border-color:var(--line);box-shadow:inset 0 -2px 0 var(--heat)}.mobile-nav{display:none;position:relative}.mobile-nav summary{cursor:pointer;border:1px solid var(--line-strong);background:var(--surface);border-radius:5px;place-content:center;gap:4px;width:44px;height:44px;list-style:none;display:grid}.mobile-nav summary::-webkit-details-marker{display:none}.mobile-nav summary span{background:var(--ink);width:18px;height:2px;display:block}.mobile-nav nav{border:1px solid var(--line-strong);background:var(--surface);width:min(260px,100vw - 24px);height:auto;box-shadow:var(--shadow);padding:6px;position:absolute;top:50px;right:0}.mobile-nav nav a{border:0;border-radius:4px;min-height:46px;padding:0 13px}.mobile-nav nav a[aria-current=page]{background:var(--cool-soft);color:var(--cool);font-weight:700}.lang-switch{align-items:center;min-height:36px;display:inline-flex}.section-label{color:var(--muted);letter-spacing:.08em;margin-bottom:12px;font-size:13px;font-weight:700;display:block}.catalog-search>input{height:44px;font-size:15px}.mobile-filter-trigger{border:1px solid var(--line-strong);background:var(--surface);align-items:center;gap:7px;min-height:44px;padding:0 13px;font-size:13px;font-weight:700;display:none}.mobile-filter-trigger b{background:var(--ink);color:#fff;border-radius:999px;place-items:center;min-width:20px;height:20px;font-size:12px;display:grid}.filter-stack{gap:14px}.filter-stack label{color:var(--muted);gap:6px;font-size:13px}.filter-stack select{height:40px;font-size:14px}.category-index button{border-radius:4px;min-height:40px;font-size:13px}.rank-item{cursor:default;grid-template-columns:36px minmax(0,1fr) 32px;gap:6px;min-height:92px;padding:8px 9px}.rank-preview-button{text-align:left;cursor:pointer;background:0 0;border:0;border-radius:4px;grid-template-columns:42px minmax(0,1fr) 78px 58px;align-items:center;gap:9px;min-width:0;min-height:74px;padding:5px 4px;display:grid}.rank-preview-button:hover{background:#ffffff8c}.select-box{width:36px;min-height:44px}.select-box span{width:18px;height:18px}.select-box input:focus-visible+span{outline-offset:3px;outline:3px solid #176b96}.rank-index{font-size:13px}.rank-main{min-width:0;display:block}.rank-title{align-items:baseline;gap:8px;min-width:0;display:flex}.rank-main strong{text-overflow:ellipsis;white-space:nowrap;min-width:0;font-size:14px;overflow:hidden}.category-chip{flex:none;font-size:13px}.rank-summary{color:#555650;white-space:nowrap;text-overflow:ellipsis;margin:3px 0;font-size:13px;display:block;overflow:hidden}.rank-meta{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;font-size:13px;display:block;overflow:hidden}.heat-score b{color:var(--heat);font-size:15px}.heat-score span{color:var(--muted);letter-spacing:.08em;font-size:12px}.rank-detail-link{width:32px;min-height:44px;color:var(--cool);border-radius:4px;place-items:center;display:grid}.preview-kicker{font-size:13px}.preview-rail>p,.preview-rail section p{font-size:15px}.preview-rail h3{text-transform:none;letter-spacing:0;font-size:18px}.preview-rail code,.preview-rail small,.text-link{font-size:13px}.signal-bars>div{grid-template-columns:86px 1fr 28px;font-size:13px}.selection-tray b,.selection-tray span,.selection-tray em{font-size:13px}.filter-sheet-layer{display:none}.course-card h3{font-size:18px}.course-card p{font-size:15px;line-height:1.65}.course-card>span,.course-card button,.course-card a,.course-topbar{font-size:13px}.course-card button,.course-card a{min-height:44px}.theory-content p,.practice-content p,.theory-content li,.practice-content li{font-size:15px;line-height:1.8}.theory-content h3,.practice-content h3{font-size:18px}.lab-block>b,.interview-callout>b,.flow-diagram figcaption,.flow-diagram small,.annotated-figure figcaption span,.course-nav a,.lab-block pre,.practice-pane pre,.flow-step{font-size:13px}.flow-step i{font-size:12px}.detail-grid aside>.muted{font-size:13px!important}@media (width<=760px){.header-inner{grid-template-columns:1fr auto}.desktop-nav{display:none!important}.mobile-nav{display:block}.mobile-nav[open] nav{display:grid}.brand small{display:none}.lang-switch{min-height:44px}.mobile-filter-trigger{display:inline-flex}.mobile-filters{display:none!important}.filter-sheet-layer{z-index:70;align-items:end;display:grid;position:fixed;inset:0}.filter-sheet-backdrop{background:#20211f7a;border:0;width:100%;height:100%;position:absolute;inset:0}.filter-sheet{z-index:1;background:var(--surface);border-radius:16px 16px 0 0;grid-template-rows:auto minmax(0,1fr) auto;max-height:min(82vh,720px);display:grid;position:relative;box-shadow:0 -14px 40px #1818162e}.filter-sheet>header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:16px;min-height:72px;padding:14px 16px;display:flex}.filter-sheet h2{margin:0 0 2px;font-size:20px}.filter-sheet header p{color:var(--muted);margin:0;font-size:13px}.icon-button{border:1px solid var(--line);background:var(--surface);border-radius:6px;place-items:center;width:44px;height:44px;display:grid}.filter-sheet-body{padding:16px;overflow:auto}.filter-sheet .filter-stack select,.filter-sheet .category-index button{min-height:44px}.filter-sheet>footer{padding:12px 16px max(12px, env(safe-area-inset-bottom));border-top:1px solid var(--line);background:var(--surface);grid-template-columns:1fr 1.4fr;gap:10px;display:grid}.rank-item{grid-template-columns:36px minmax(0,1fr) 32px;min-height:104px;padding:7px 6px}.rank-preview-button{grid-template-columns:38px minmax(0,1fr) 54px;gap:7px;min-height:88px}.rank-preview-button .spark{display:none}.rank-summary,.rank-meta{font-size:13px}.rank-title{align-items:center}.category-chip{text-overflow:ellipsis;max-width:86px;overflow:hidden}.selection-tray .button{min-height:44px;padding:7px 9px}}.course-topbar{align-items:center;gap:14px;min-height:46px}.course-topbar>a{align-items:center;min-height:44px;display:inline-flex}.course-resume{border:1px solid var(--line-strong);background:var(--surface);min-height:44px;color:var(--cool);font:inherit;cursor:pointer;border-radius:5px;padding:0 11px;font-weight:700}.course-resume[hidden]{display:none}.course-stage-nav{z-index:12;border-bottom:1px solid var(--line-strong);background:var(--paper);grid-template-columns:repeat(5,minmax(0,1fr));margin:0 0 34px;display:grid;position:sticky;top:56px}.course-stage-nav:empty{display:none}.course-stage-nav a{min-width:0;min-height:52px;color:var(--muted);border-bottom:2px solid #0000;grid-template-columns:24px minmax(0,1fr);align-items:center;gap:7px;padding:7px 9px;font-size:12px;display:grid}.course-stage-nav a+a{border-left:1px solid var(--line)}.course-stage-nav a span{color:var(--cool);font-variant-numeric:tabular-nums;font-size:12px}.course-stage-nav a b{text-overflow:ellipsis;white-space:nowrap;font-size:12px;font-weight:600;line-height:1.25;overflow:hidden}.course-stage-nav a:hover{background:var(--surface);color:var(--ink)}.course-stage-nav a[aria-current]{border-bottom-color:var(--cool);background:var(--cool-soft);color:var(--ink)}.lesson-stage{scroll-margin-top:122px}.lesson-stage[data-active]>header h2{color:var(--cool)}.lesson-stage[data-active]>header span{color:var(--heat);font-weight:700}.practice-pane{max-height:calc(100vh - 142px);top:124px}.lab-ledger{background:var(--cool-soft);border-bottom:1px solid #bfd5df;margin:-18px -18px 18px;padding:12px 14px}.lab-ledger dl{grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:8px 16px;margin:0;display:grid}.lab-ledger dl>div{grid-template-columns:62px minmax(0,1fr);align-items:baseline;gap:8px;min-width:0;display:grid}.lab-ledger dt{color:var(--muted);font-size:12px}.lab-ledger dd{min-width:0;color:var(--ink);margin:0;font-size:12px;line-height:1.45}.lab-ledger code{overflow-wrap:anywhere;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px}.lab-ledger-status dd{color:var(--review);font-weight:700}.lab-ledger-status dd:before{content:"";vertical-align:1px;background:currentColor;border-radius:50%;width:6px;height:6px;margin-right:6px;display:inline-block}.practice-pane pre,.theory-pane pre,.lab-block pre{max-width:100%;overflow-x:auto}.related-skills{border-top:1px solid var(--line-strong);margin:54px 0 38px;padding-top:26px}.related-skills-head{justify-content:space-between;align-items:start;gap:24px;margin-bottom:18px;display:flex}.related-skills-head h2{margin:0 0 6px;font-size:24px}.related-skills-head p{max-width:760px;color:var(--muted);margin:0;font-size:14px;line-height:1.65}.live-source{color:var(--safe);letter-spacing:.08em;flex:none;align-items:center;gap:7px;padding-top:6px;font-size:12px;font-weight:700;display:inline-flex}.live-source i{background:currentColor;border-radius:999px;width:7px;height:7px}.related-state{border-top:1px solid var(--line);border-bottom:1px solid var(--line);min-height:116px;color:var(--muted);align-items:center;gap:12px;padding:18px 0;font-size:14px;display:flex}.related-error{justify-content:space-between}.related-error p{margin:0}.loading-rule{background:var(--line);width:36px;height:2px;overflow:hidden}.loading-rule:after{content:"";background:var(--cool);width:55%;height:100%;animation:1.1s ease-in-out infinite alternate related-loading;display:block}@keyframes related-loading{to{transform:translate(82%)}}.related-skill-list{border-top:1px solid var(--line-strong);margin:0;padding:0;list-style:none}.related-skill-list li{border-bottom:1px solid var(--line);grid-template-columns:88px minmax(0,1fr) 160px;align-items:center;gap:18px;min-height:152px;padding:18px 0;display:grid}.related-rank{border-top:2px solid var(--category-color);align-content:center;align-self:stretch;gap:3px;display:grid}.related-rank span{color:var(--category-color);font-variant-numeric:tabular-nums;font-size:22px;font-weight:700}.related-rank small{color:var(--muted);font-size:12px}.related-skill-body{min-width:0}.related-skill-title{flex-wrap:wrap;align-items:center;gap:7px;margin-bottom:7px;display:flex}.related-category{color:var(--category-color);align-items:center;gap:6px;font-size:12px;font-weight:700;display:inline-flex}.related-category:before{content:"";background:currentColor;border-radius:999px;width:7px;height:7px}.related-skill-body h3{margin:0 0 5px;font-size:18px;line-height:1.3}.related-skill-body>p{color:#4f504b;margin:0 0 8px;font-size:14px;line-height:1.6}.related-skill-body>small{color:var(--muted);font-size:12px;line-height:1.55;display:block}.related-skill-body>small b{color:var(--ink)}.related-skill-link{border-left:1px solid var(--line);min-height:44px;color:var(--cool);justify-content:space-between;align-items:center;gap:8px;padding:0 0 0 12px;font-size:13px;font-weight:700;display:flex}.related-skill-link:hover span{text-underline-offset:3px;text-decoration:underline}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button:hover{transform:none}.loading-rule:after{animation:none;transform:translate(40%)}}@media (width<=900px){.course-stage-nav{overscroll-behavior-inline:contain;display:flex;top:55px;overflow-x:auto}.course-stage-nav a{min-width:190px}.lesson-stage{scroll-margin-top:116px}.practice-pane{max-height:none;position:static}.related-skill-list li{grid-template-columns:70px minmax(0,1fr)}.related-skill-link{border-left:0;grid-column:2;justify-content:flex-start;padding:8px 0}}@media (width<=650px){.course-topbar{flex-wrap:wrap}.course-resume{width:100%}.lab-ledger dl{grid-template-columns:1fr}.course-stage-nav{margin-inline:-12px;padding-inline:12px}.course-stage-nav a{min-width:170px}.related-skills-head{gap:8px;display:grid}.live-source{padding-top:0}.related-skill-list li{grid-template-columns:54px minmax(0,1fr);align-items:start;gap:12px;min-height:0;padding:16px 0}.related-rank{padding-top:9px}.related-rank span{font-size:18px}.related-skill-body h3{font-size:17px}.related-skill-link{border-top:1px solid var(--line);grid-column:1/-1}}.signal-grid{grid-template-columns:minmax(0,1fr) minmax(320px,.78fr);align-items:start;gap:56px;display:grid}.signal-grid header p{max-width:680px;color:var(--muted)}.signal-grid header>a,.text-link{color:var(--cool);font-size:13px;font-weight:700}.signal-proof{border-top:2px solid var(--heat);border-bottom:1px solid var(--line);gap:10px;padding:22px 0;display:grid}.signal-proof>span,.signal-proof a{letter-spacing:.06em;color:var(--heat);font-size:12px;font-weight:700}.signal-proof p{color:#494a46;margin:0}.section-heading{justify-content:space-between;align-items:end;gap:30px;margin-bottom:20px;display:flex}.section-heading p{max-width:520px;color:var(--muted);margin:0}.curiosity-row{border-top:1px solid var(--line-strong)}.curiosity-row a{border-bottom:1px solid var(--line);grid-template-columns:52px minmax(0,1fr) 120px;align-items:center;gap:18px;min-height:92px;display:grid}.curiosity-row b{color:var(--heat);font-size:13px}.curiosity-row span{font-size:17px;font-weight:600}.curiosity-row small{color:var(--muted);justify-self:end}.experiment-ticket{border:1px solid var(--line-strong);background:var(--surface);grid-template-columns:180px 1fr 1fr 1fr;gap:0;display:grid}.experiment-ticket>*{border-right:1px solid var(--line);min-width:0;padding:22px}.experiment-ticket>:last-child{border-right:0}.experiment-ticket h2{margin:4px 0 0}.experiment-ticket span{color:var(--cool);letter-spacing:.08em;margin-bottom:8px;font-size:12px;font-weight:700;display:block}.path-ledger{border-top:1px solid var(--line-strong)}.path-ledger>a{border-bottom:1px solid var(--line);grid-template-columns:52px 190px minmax(0,1fr) 90px;align-items:center;gap:18px;min-height:104px;display:grid}.path-ledger>a>span{color:var(--cool);font-size:13px}.path-ledger h3,.path-ledger p{margin:0}.path-ledger p{color:var(--muted)}.path-ledger b{justify-self:end;font-size:13px}.catalog-workbench{width:min(calc(100% - 28px),var(--wide));margin:26px auto 90px}.catalog-loading{min-height:460px;color:var(--muted);place-items:center;display:grid}.catalog-statusbar{border-bottom:1px solid var(--line-strong);justify-content:space-between;align-items:center;gap:24px;padding:14px 0;display:flex}.catalog-status-copy{align-items:center;gap:10px;font-size:13px;display:flex}.catalog-status-copy i{background:var(--safe);border-radius:50%;width:7px;height:7px}.catalog-notice{background:#fff7d9;border:1px solid #ddc978;margin:12px 0;padding:10px 12px;font-size:13px}.filter-trigger{display:none}.catalog-grid{border-bottom:1px solid var(--line-strong);grid-template-columns:210px minmax(520px,1fr) 330px;gap:0;display:grid}.catalog-filters{border-right:1px solid var(--line);align-self:start;max-height:calc(100vh - 88px);padding:18px 18px 32px 0;position:sticky;top:76px;overflow:auto}.catalog-filters>header{justify-content:space-between;align-items:center;display:flex}.catalog-filters h2{margin:0;font-size:18px}.catalog-filters fieldset{border:0;margin:20px 0 0;padding:0}.catalog-filters legend{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px;font-size:12px;font-weight:700}.catalog-filters fieldset button{text-align:left;cursor:pointer;background:0 0;border:0;border-radius:4px;width:100%;min-height:34px;padding:6px 8px;font-size:13px}.catalog-filters fieldset button:has(i){grid-template-columns:10px minmax(0,1fr) auto;align-items:center;gap:7px;display:grid}.catalog-filters fieldset button small{color:var(--muted);font-size:12px;font-weight:500}.catalog-filters fieldset button:hover,.catalog-filters fieldset button.active{background:var(--surface);color:var(--cool);font-weight:700}.catalog-filters select,.search-field input{border:1px solid var(--line);background:var(--surface);width:100%;min-height:40px;color:var(--ink);border-radius:5px;padding:7px 9px;font-size:13px}.search-field{align-items:center;display:flex;position:relative}.search-field svg{color:var(--muted);position:absolute;left:10px}.search-field input{padding-left:34px}.filter-actions{gap:8px;margin-top:18px;display:grid}.ranking-index{min-width:0;padding:18px 20px}.ranking-index-head{justify-content:space-between;align-items:end;gap:18px;margin-bottom:10px;display:flex}.ranking-index-head>div{flex-wrap:wrap;align-items:baseline;gap:8px;display:flex}.ranking-index-head>div span{font-variant-numeric:tabular-nums}.ranking-index-head>div strong{font-size:13px}.ranking-index-head h2{margin:0;font-size:23px}.ranking-index-head>span{color:var(--muted);font-size:12px}.skill-rows{border-top:1px solid var(--line-strong)}.skill-row-main{--category-color:var(--cool);border:0;border-bottom:1px solid var(--line);text-align:left;cursor:pointer;background:0 0;grid-template-columns:46px minmax(220px,1fr) 104px 76px;align-items:center;gap:12px;min-height:106px;padding:10px 8px;display:grid;position:relative}.skill-row-main:before{content:"";background:var(--category-color);width:2px;position:absolute;top:14px;bottom:14px;left:0}.skill-row-main:hover,.skill-row-main[data-active=true]{background:#fffdf8c7}.skill-row-main>input{width:18px;height:18px;accent-color:var(--ink);margin:auto}.rank-number{color:var(--category-color);font-variant-numeric:tabular-nums;font-size:15px;font-weight:700}.skill-row-copy{min-width:0}.skill-row-copy strong{text-overflow:ellipsis;white-space:nowrap;font-size:15px;display:block;overflow:hidden}.skill-row-copy>span{color:#4d4e49;margin:3px 0;font-size:13px;line-height:1.45;display:block}.category-path{font-weight:700;color:var(--category-color)!important;font-size:12px!important}.skill-row-meta{color:var(--muted);gap:4px;font-size:12px;display:grid}.skill-row-meta>span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.skill-row-heat{justify-items:end;min-width:0;display:grid}.skill-row-heat .spark{pointer-events:none;max-width:100%}.skill-row-heat b{color:var(--heat);font-size:16px}.skill-row-heat span{letter-spacing:.08em;color:var(--muted);font-size:12px}.row-arrow{color:var(--cool)}.catalog-empty{color:var(--muted);text-align:center;padding:48px 8px}.skill-preview{border-left:1px solid var(--line);align-self:start;max-height:calc(100vh - 88px);padding:18px 0 32px 20px;position:sticky;top:76px;overflow:auto}.skill-preview h2{margin:8px 0;font-size:23px}.preview-kicker,.preview-category{letter-spacing:.08em;font-size:12px;font-weight:700}.preview-kicker{color:var(--muted)}.preview-category{color:var(--category-color)}.preview-summary{color:#444540}.preview-contract,.preview-source,.preview-evidence{border-top:1px solid var(--line);padding:16px 0}.preview-contract dl{margin:0}.preview-contract div{grid-template-columns:72px 1fr;gap:10px;padding:5px 0;display:grid}.preview-contract dt{color:var(--muted);font-size:12px}.preview-contract dd{margin:0;font-size:13px}.preview-evidence h3,.preview-source h3{font-size:16px}.preview-source code{overflow-wrap:anywhere;font-size:12px}.trust-line{color:var(--safe);align-items:center;gap:6px;font-size:12px;display:flex}.signal-bars>div{grid-template-columns:82px 1fr 28px;align-items:center;gap:8px;margin:7px 0;font-size:12px;display:grid}.signal-bars i{background:var(--line);height:4px}.signal-bars i b{background:var(--heat);height:100%;display:block}.signal-bars em{text-align:right;font-style:normal}.preview-detail{width:100%}.compare-dock{z-index:42;border:1px solid var(--line-strong);background:var(--surface);box-shadow:var(--shadow);cursor:pointer;border-radius:8px;grid-template-columns:auto 1fr auto;align-items:center;gap:4px 9px;padding:10px 13px;display:grid;position:fixed;bottom:86px;right:18px}.compare-dock small{color:var(--muted);grid-column:2/-1}.compare-panel{background:var(--surface);border-radius:10px;width:min(1180px,100%);max-height:88vh;position:relative;overflow:auto;box-shadow:0 24px 70px #0000003d}.compare-panel>header{z-index:1;border-bottom:1px solid var(--line);background:var(--surface);justify-content:space-between;padding:18px 22px;display:flex;position:sticky;top:0}.compare-panel h2{margin:3px 0 0}.compare-panel header span{color:var(--muted);font-size:12px}.compare-table{grid-template-columns:140px repeat(3,minmax(220px,1fr));min-width:820px;display:grid}.compare-labels,.compare-table article{grid-template-rows:62px repeat(10,minmax(54px,auto));display:grid}.compare-labels>*{border-bottom:1px solid var(--line);padding:12px;font-size:12px}.compare-table article{border-left:1px solid var(--line);border-top:1px solid var(--category-color)}.compare-table article>*{border-bottom:1px solid var(--line);margin:0;padding:12px;font-size:13px}.compare-table article h3{font-size:16px}.selection-tray{z-index:45;border:1px solid var(--line-strong);background:var(--surface);border-radius:9px;align-items:center;gap:10px;width:min(100% - 24px,920px);padding:10px 12px;display:flex;position:fixed;bottom:18px;left:50%;translate:-50%;box-shadow:0 14px 44px #231e182e}.selection-tray>div{margin-right:auto;display:grid}.selection-tray span{color:var(--muted);font-size:12px}.text-button{min-height:36px;color:var(--cool);cursor:pointer;background:0 0;border:0;font-size:12px;font-weight:700}.floating-error{z-index:90;max-width:420px;color:var(--danger);background:#fff0ed;border:1px solid #d89b91;align-items:center;gap:10px;padding:12px 14px;font-size:13px;display:flex;position:fixed;top:72px;right:18px}.floating-error button,.icon-button{cursor:pointer;background:0 0;border:0}.skill-detail-page{width:min(calc(100% - 40px),var(--max));margin:26px auto 80px}.detail-back{color:var(--cool);margin-bottom:18px;font-size:13px;display:inline-block}.skill-detail-hero{border-top:2px solid var(--category-color);border-bottom:1px solid var(--line-strong);grid-template-columns:minmax(0,1fr) 230px;gap:46px;padding:26px 0;display:grid}.detail-category{color:var(--category-color);font-size:13px;font-weight:700}.detail-summary{color:#444540;max-width:760px;font-size:18px}.detail-tags{flex-wrap:wrap;gap:6px;display:flex}.detail-tags span{border:1px solid var(--line);border-radius:4px;padding:3px 7px;font-size:12px}.rank-sheet{border:1px solid var(--line);background:var(--surface);align-content:start;gap:6px;padding:16px;display:grid}.rank-sheet b{color:var(--heat);font-size:34px}.rank-sheet span,.rank-sheet small{color:var(--muted);font-size:12px}.skill-detail-layout{grid-template-columns:minmax(0,1fr) 320px;gap:42px;padding-top:30px;display:grid}.detail-panel{border-bottom:1px solid var(--line);padding:22px 0}.panel-heading{justify-content:flex-start;align-items:flex-start;gap:14px;display:flex}.skill-detail-main .panel-heading{grid-template-columns:40px minmax(0,1fr);align-items:start;gap:14px;display:grid}.skill-detail-main .panel-heading>span{color:var(--category-color);font-variant-numeric:tabular-nums;padding-top:5px;font-size:12px;font-weight:700}.panel-heading h2,.detail-panel>h2{text-align:left;margin:0 0 4px;font-size:23px}.panel-heading p{color:var(--muted);text-align:left;margin:0}.skill-detail-layout>aside .panel-heading{justify-content:flex-start;align-items:flex-start;display:flex}.skill-detail-layout>aside .panel-heading>svg{color:var(--cool);flex:none;margin-top:5px}.contract-grid{border-top:1px solid var(--line);grid-template-columns:repeat(2,1fr);gap:0;display:grid}.contract-grid>div{border-bottom:1px solid var(--line);padding:16px 14px 16px 0}.contract-grid span{color:var(--muted);font-size:12px;display:block}.contract-grid p,.contract-grid ul{margin:5px 0 0}.ranking-signal-grid{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}.ranking-signal-grid>div{background:var(--surface);border:1px solid var(--line);padding:14px}.metadata{gap:8px;display:grid}.metadata div{grid-template-columns:100px 1fr;gap:12px;display:grid}.metadata dt{color:var(--muted);font-size:12px}.metadata dd{overflow-wrap:anywhere;margin:0}.detail-actions{gap:8px;display:grid}.button-disabled{opacity:.5;cursor:not-allowed}.file-tree{margin:0;padding:0;list-style:none}.file-tree li{border-bottom:1px solid var(--line);grid-template-columns:1fr 76px;gap:8px;padding:7px 0;font-family:ui-monospace,Consolas,monospace;font-size:12px;display:grid}.trust-panel{border-top:2px solid var(--safe)}.risk-finding{border-bottom:1px solid var(--line);padding:10px 0}.learning-next a{border-bottom:1px solid var(--line);color:var(--cool);gap:4px;padding:12px 0;display:grid}.command-card pre{color:#f7f4ed;background:#202725;padding:12px;font-size:12px;overflow:auto}.detail-feedback{color:var(--muted);margin-top:16px;font-size:12px;display:block}.why-hero{border-bottom:1px solid var(--line);padding:58px 0 28px}.why-hero-grid{grid-template-columns:1fr 220px;align-items:center;gap:50px;display:grid}.why-hero p{max-width:720px;color:var(--muted);font-size:16px}.why-orbit{border:1px solid var(--line-strong);border-radius:50%;justify-self:end;width:170px;height:170px;position:relative}.why-orbit span{color:var(--heat);font-size:48px;position:absolute;inset:50% auto auto 50%;translate:-50% -50%}.why-orbit i{border:2px solid var(--cool);border-radius:50%;width:10px;height:10px;position:absolute}.why-orbit i:nth-child(2){top:70px;left:18px}.why-orbit i:nth-child(3){top:25px;right:32px}.why-orbit i:nth-child(4){bottom:34px;right:20px}.why-index{padding:34px 0 80px}.why-grid{border-top:1px solid var(--line-strong);border-left:1px solid var(--line-strong);grid-template-columns:repeat(2,1fr);display:grid}.why-card{border-right:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong);background:#fffdf873;min-height:300px;padding:24px}.why-card-meta{color:var(--muted);gap:12px;font-size:12px;display:flex}.why-card-meta b{color:var(--heat)}.why-card h2{margin:46px 0 12px;font-size:24px}.why-card p{color:var(--muted)}.why-card footer{justify-content:space-between;gap:16px;margin-top:28px;display:flex}.why-card footer small{color:var(--muted)}.why-card footer a{color:var(--cool);font-size:13px;font-weight:700}.why-article{padding:38px 0 90px}.why-article-header{max-width:900px;margin:auto}.why-article-header>a{color:var(--cool);font-size:13px}.why-article-meta{color:var(--muted);gap:12px;margin:28px 0 12px;font-size:12px;display:flex}.why-article-header h1{font-size:clamp(32px,4vw,42px)}.quick-answer{border-top:2px solid var(--heat);border-bottom:1px solid var(--line);margin-top:28px;padding:20px 0}.quick-answer span{color:var(--heat);letter-spacing:.08em;font-size:12px;font-weight:700}.quick-answer p{margin:6px 0 0;font-size:19px}.why-reading-grid{grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);gap:52px;max-width:1080px;margin:54px auto;display:grid}.why-prose section{margin-bottom:44px}.why-prose p,.why-prose li{font-size:16px;line-height:1.85}.myth-list{border-top:1px solid var(--line);padding:0;list-style:none}.myth-list li{border-bottom:1px solid var(--line);padding:15px 0}.why-reading-grid>aside{align-content:start;gap:18px;display:grid}.why-diagram,.why-experiment{border:1px solid var(--line);background:var(--surface);padding:20px}.why-diagram>span,.why-experiment>span{color:var(--cool);letter-spacing:.08em;font-size:12px;font-weight:700}.why-diagram h2,.why-experiment h2{font-size:20px}.why-diagram ol{margin:0;padding:0;list-style:none}.why-diagram li{border-top:1px solid var(--line);grid-template-columns:34px 1fr;gap:10px;padding:10px 0;display:grid}.why-diagram li b{color:var(--cool);font-size:12px}.why-experiment h3{margin:18px 0 5px;font-size:15px}.why-experiment p,.why-experiment li{font-size:13px}.why-connections{border-top:1px solid var(--line-strong);border-left:1px solid var(--line-strong);grid-template-columns:repeat(3,1fr);gap:0;display:grid}.why-connections section{border-right:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong);padding:18px}.why-connections h2{font-size:17px}.why-connections a{border-top:1px solid var(--line);gap:3px;padding:9px 0;font-size:13px;display:grid}.why-connections small{color:var(--muted)}.why-interview{background:var(--surface);border-top:1px solid var(--line);padding:12px 0 90px}.why-interview-heading{align-items:end;margin-bottom:24px}.why-interview-heading p{max-width:660px}.interview-question-list{border-top:1px solid var(--line-strong);border-left:1px solid var(--line-strong)}.interview-question-row{border-right:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong);grid-template-columns:58px minmax(0,1fr);gap:20px;padding:22px 24px;display:grid}.interview-question-row>b{color:var(--heat);padding-top:3px;font-size:13px}.interview-question-row h3{margin:0 0 10px;font-size:18px;line-height:1.5}.interview-question-row p{color:var(--muted);margin:0;font-size:14px;line-height:1.7}.interview-question-row p span{color:var(--cool);letter-spacing:.04em;margin-bottom:3px;font-size:12px;font-weight:700;display:block}.forge-scenarios{border-top:1px solid var(--line-strong);border-left:1px solid var(--line-strong);grid-template-columns:repeat(3,1fr);margin-top:32px;display:grid}.forge-scenarios span{border-right:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong);color:var(--muted);gap:4px;padding:14px;font-size:12px;display:grid}.forge-scenarios b{color:var(--ink);font-size:14px}.one-step-note{border-top:1px solid var(--cool);border-bottom:1px solid var(--line);grid-template-columns:170px 1fr;gap:20px;margin:24px 0;padding:15px 0;display:grid}.one-step-note span{color:var(--cool);font-size:12px;font-weight:700}.one-step-note p{margin:0}.course-state{color:var(--muted);font-size:12px;grid-template-columns:18px 92px 1fr!important;align-items:center!important;gap:8px!important;display:grid!important}.course-state i{background:var(--line);height:4px}.course-state i b{background:var(--cool);height:100%;display:block}.course-card[data-state=verified]{border-top-color:var(--safe)}.chapter-brief{border-top:1px solid var(--line-strong);border-left:1px solid var(--line-strong);grid-template-columns:repeat(2,1fr);margin:20px 0 28px;display:grid}.chapter-brief>div{border-right:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong);gap:5px;padding:14px;display:grid}.chapter-brief span{color:var(--muted);font-size:12px}.chapter-brief b{font-size:13px}.lab-download-row{align-items:center;gap:14px;margin:0 0 32px;display:flex}.lab-download-row code{color:var(--muted);font-size:12px}.evidence-verifier{border:1px solid var(--line-strong);background:var(--surface);margin:34px 0;padding:20px}.evidence-verifier>header{justify-content:space-between;align-items:center;display:flex}.evidence-verifier header span{color:var(--cool);letter-spacing:.1em;font-size:12px;font-weight:700}.evidence-verifier h2{margin:3px 0 0;font-size:20px}.evidence-state-track{border-top:1px solid var(--line);grid-template-columns:repeat(5,1fr);margin:20px 0;padding:0;list-style:none;display:grid}.evidence-state-track li{color:var(--muted);gap:5px;padding:12px 6px 0;font-size:12px;display:grid}.evidence-state-track i{border:1px solid var(--line-strong);background:var(--surface);border-radius:50%;place-items:center;width:24px;height:24px;margin-top:-25px;font-style:normal;display:grid}.evidence-state-track li[data-active=true]{color:var(--cool);font-weight:700}.evidence-state-track li[data-active=true] i{border-color:var(--cool);color:var(--cool)}.evidence-verifier>p{color:var(--muted);font-size:12px}.evidence-actions{flex-wrap:wrap;gap:8px;display:flex}.evidence-actions label input{opacity:0;width:1px;height:1px;position:absolute}.evidence-verifier output{align-items:center;gap:7px;margin-top:12px;font-size:12px;display:flex}.evidence-success{color:var(--safe)}.evidence-error{color:var(--danger)}@media (width<=1100px){.catalog-grid{grid-template-columns:190px minmax(480px,1fr)}.skill-preview{display:none}.signal-grid{grid-template-columns:1fr 320px}.experiment-ticket{grid-template-columns:160px 1fr 1fr}.experiment-ticket>:last-child{border-top:1px solid var(--line);grid-column:2/-1}.path-ledger>a{grid-template-columns:46px 160px 1fr 70px}}@media (width<=820px){.signal-grid,.why-reading-grid,.skill-detail-layout{grid-template-columns:1fr}.signal-proof{margin-top:4px}.experiment-ticket{grid-template-columns:1fr 1fr}.experiment-ticket>*{border-bottom:1px solid var(--line)}.experiment-ticket>:first-child{grid-column:1/-1}.experiment-ticket>:last-child{grid-column:auto}.path-ledger>a{grid-template-columns:42px 1fr 70px}.path-ledger p{grid-column:2/-1}.catalog-grid{display:block}.catalog-filters{display:none}.filter-trigger{display:inline-flex}.ranking-index{padding-inline:0}.catalog-statusbar{z-index:18;background:var(--paper);position:sticky;top:56px}.why-connections{grid-template-columns:1fr}.why-connections section{border-right:1px solid var(--line-strong)}.skill-detail-hero{grid-template-columns:1fr}.rank-sheet{grid-template-columns:repeat(3,1fr)}.selection-tray{flex-wrap:wrap;align-items:stretch}.selection-tray>div{width:100%}.compare-dock{bottom:138px}.chapter-brief{grid-template-columns:1fr}}@media (width<=620px){.interview-question-row{grid-template-columns:34px minmax(0,1fr);gap:12px;padding:18px 14px}.interview-question-row h3{font-size:16px}.interview-question-row p{font-size:13px}.home-signal,.home-curiosity,.home-experiment,.home-paths{padding:38px 0}.section-heading{display:block}.curiosity-row a{grid-template-columns:36px 1fr;min-height:104px}.curiosity-row small{display:none}.experiment-ticket{grid-template-columns:1fr}.experiment-ticket>:first-child,.experiment-ticket>:last-child{grid-column:auto}.path-ledger>a{grid-template-columns:34px 1fr}.path-ledger>a>b{display:none}.path-ledger p{grid-column:2}.skill-row-main{grid-template-columns:30px 40px minmax(0,1fr) 52px 24px;min-height:118px}.skill-row-meta{display:none}.skill-row-copy>span{-webkit-line-clamp:2;white-space:normal;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.selection-tray .text-button{order:4}.selection-tray .button{flex:1}.compare-overlay{padding:0}.compare-panel{border-radius:0;height:100%;max-height:100vh}.why-hero-grid{grid-template-columns:1fr}.why-orbit{display:none}.why-grid{grid-template-columns:1fr}.why-card{min-height:260px}.why-card h2{margin-top:30px}.why-reading-grid{margin-top:34px}.why-prose p,.why-prose li{font-size:15px}.why-article-header h1{font-size:32px}.why-article-meta{flex-wrap:wrap}.quick-answer p{font-size:17px}.contract-grid,.ranking-signal-grid{grid-template-columns:1fr}.skill-detail-page{width:min(calc(100% - 24px),var(--max))}.rank-sheet,.forge-scenarios{grid-template-columns:1fr}.one-step-note{grid-template-columns:1fr;gap:4px}.lab-download-row{display:grid}.evidence-state-track{border-top:0;border-left:1px solid var(--line);grid-template-columns:1fr;margin-left:10px}.evidence-state-track li{grid-template-columns:24px 1fr;align-items:center;margin-left:-12px;padding:5px 0}.evidence-state-track i{margin:0}.evidence-actions{display:grid}.evidence-actions>*{width:100%}.catalog-status-copy{align-items:flex-start}.catalog-workbench{width:min(calc(100% - 20px),var(--wide))}}.skill-rows{margin:0;padding:0;list-style:none}.skill-rows>li{border-bottom:1px solid var(--line);grid-template-columns:34px minmax(0,1fr) 32px 32px;align-items:center;display:grid}.skill-rows>li>.skill-row-main{border-bottom:0;width:100%}.skill-select{align-self:stretch;place-items:center;display:grid}.skill-select input{width:17px;height:17px;accent-color:var(--ink);margin:0}.skill-select span{display:none}.row-detail-link,.compare-toggle{z-index:2;width:30px;height:34px;color:var(--cool);cursor:pointer;background:0 0;border:0;place-items:center;display:grid;position:relative}.row-detail-link:hover,.compare-toggle:hover,.compare-toggle.active{background:var(--cool-soft)}.skill-detail-main{min-width:0}@media (width<=620px){.contract-grid{grid-template-columns:1fr}.contract-grid>div{padding-right:0}.skill-detail-main .panel-heading{grid-template-columns:32px minmax(0,1fr);gap:10px}.skill-rows>li{grid-template-columns:28px minmax(0,1fr) 34px 34px}.skill-row-main{grid-template-columns:38px minmax(0,1fr) 58px;gap:8px;min-height:124px;padding:12px 4px}.skill-row-main:before{top:10px;bottom:10px}.skill-row-copy strong{font-size:14px}.skill-row-copy>span{font-size:12px;line-height:1.5}.skill-row-heat{min-width:0}.skill-row-heat .spark{width:54px}.row-detail-link,.compare-toggle{width:32px;height:40px}}.selection-tray{transform:translate(-50%)translate(0,0)}.learning-review{border-top:2px solid var(--line-strong);border-bottom:1px solid var(--line-strong);margin:54px 0 24px;padding:24px 0 20px}.learning-review-head{grid-template-columns:minmax(0,1fr) minmax(240px,340px);align-items:start;gap:32px;margin-bottom:22px;display:grid}.learning-review-head h2{margin:0 0 7px;font-size:24px;line-height:1.25}.learning-review-head p{max-width:720px;color:var(--muted);margin:0;font-size:14px;line-height:1.65}.learning-review-mode{border-top:1px solid var(--cool);cursor:pointer;grid-template-columns:20px minmax(0,1fr);gap:3px 9px;min-width:0;padding:12px 0;display:grid}.learning-review-mode input{width:17px;height:17px;accent-color:var(--cool);margin:1px 0 0}.learning-review-mode span{font-size:14px;font-weight:700}.learning-review-mode small{color:var(--muted);grid-column:2;font-size:12px;line-height:1.5}.learning-review-questions{border-top:1px solid var(--line);counter-reset:review;gap:0;margin:0;padding:0;list-style:none;display:grid}.learning-review-questions>li{border-bottom:1px solid var(--line);min-width:0;padding:20px 0}.learning-review-questions fieldset{border:0;min-width:0;margin:0;padding:0}.learning-review-questions legend{grid-template-columns:34px minmax(0,1fr);align-items:start;gap:10px;width:100%;padding:0 0 13px;font-size:16px;font-weight:700;line-height:1.55;display:grid}.learning-review-questions legend>span{border:1px solid var(--line-strong);width:28px;height:28px;color:var(--cool);font-variant-numeric:tabular-nums;place-items:center;font-size:12px;display:grid}.learning-review-options{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-left:44px;display:grid}.learning-review-options label{border:1px solid var(--line);cursor:pointer;background:#fffdf88c;grid-template-columns:18px minmax(0,1fr);align-items:start;gap:9px;min-width:0;padding:11px 12px;display:grid}.learning-review-options label:hover{border-color:var(--cool);background:var(--cool-soft)}.learning-review-options label:has(input:checked){border-color:var(--cool);box-shadow:inset 3px 0 0 var(--cool);background:var(--cool-soft)}.learning-review-options input{width:16px;height:16px;accent-color:var(--cool);margin:2px 0 0}.learning-review-options span{overflow-wrap:anywhere;min-width:0;font-size:14px;line-height:1.55}.learning-review-questions>li>.button{margin:12px 0 0 44px}.learning-review-feedback{background:var(--surface);border-left:2px solid;grid-template-columns:20px minmax(0,1fr);gap:9px;margin:14px 0 0 44px;padding:12px 14px;font-size:13px;line-height:1.6;display:grid}.learning-review-feedback strong{margin-bottom:3px;display:block}.learning-review-feedback p{color:var(--ink);margin:0}.learning-review-feedback a{color:var(--cool);text-underline-offset:3px;margin-top:6px;font-weight:700;text-decoration:underline;display:inline-block}.learning-review-questions>li.is-correct .learning-review-feedback{color:var(--safe);background:#eef7f1}.learning-review-questions>li.is-wrong .learning-review-feedback{color:var(--danger);background:#fff2ed}.learning-review-message{border-left:2px solid var(--danger);color:var(--danger);background:#fff2ed;margin:14px 0 0;padding:10px 12px;font-size:13px}.learning-review-message.is-saved{border-left-color:var(--safe);color:var(--safe);background:#eef7f1}.learning-review-footer{justify-content:space-between;align-items:center;gap:20px;padding-top:18px;display:flex}.learning-review-footer>div{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.learning-review-footer>div:first-child span{color:var(--muted);align-items:center;gap:5px;font-size:12px;display:inline-flex}.learning-review-footer .button{min-height:38px}@media (width<=760px){.learning-review-head{grid-template-columns:1fr;gap:14px}.learning-review-options{grid-template-columns:1fr;margin-left:0}.learning-review-questions>li>.button,.learning-review-feedback{margin-left:0}.learning-review-footer{align-items:stretch;display:grid}.learning-review-footer>div:last-child{grid-template-columns:1fr;display:grid}.learning-review-footer .button{width:100%}}@media (width<=620px){.selection-tray{grid-template-columns:minmax(0,1fr) auto;align-items:stretch;gap:8px;padding:10px;display:grid;bottom:8px}.selection-tray>div{grid-column:1/-1;width:auto;margin:0}.selection-tray .button-subtle{grid-area:2/1/auto/-1}.selection-tray .button-primary{grid-area:3/1}.selection-tray .text-button{order:initial;grid-area:3/2;padding-inline:12px}.compare-dock{bottom:190px;right:12px}}.catalog-workbench,.catalog-grid,.catalog-grid>*,.catalog-filters,.catalog-filters *,.ranking-index,.skill-rows,.skill-rows>li,.skill-row-main,.skill-row-main>*,.skill-row-copy,.skill-row-meta,.skill-preview,.skill-preview>*,.skill-detail-page,.skill-detail-hero,.skill-detail-hero>*,.skill-detail-layout,.skill-detail-layout>*,.detail-panel,.metadata,.metadata>div{min-width:0}.catalog-workbench{overflow-x:clip}.catalog-grid{grid-template-columns:minmax(190px,220px) minmax(540px,1fr) minmax(300px,350px);align-items:start;gap:20px;display:grid}.catalog-filters{overscroll-behavior:contain;scrollbar-gutter:stable;max-height:calc(100vh - 96px);overflow:hidden auto}.catalog-filters header,.catalog-filters fieldset,.catalog-filters label,.catalog-filters button,.catalog-filters select,.catalog-filters input{min-width:0;max-width:100%}.catalog-filters fieldset{margin-inline:0;padding-inline:0}.catalog-filters fieldset button{width:100%}.search-field{gap:6px;padding:14px 0;display:grid}.search-field>span{color:var(--muted);font-size:12px;font-weight:700}.search-field input{width:100%;padding:9px 10px}.filter-actions{grid-template-columns:1fr 1fr;gap:8px;display:grid}.filter-actions .button{min-width:0;padding-inline:8px}.ranking-index{transition:opacity .14s;position:relative}.ranking-index.is-loading{opacity:.72}.catalog-inline-loading{color:var(--muted);align-items:center;gap:6px;font-size:12px;display:inline-flex}.catalog-inline-loading:before{background:var(--cool);content:"";border-radius:999px;width:7px;height:7px;animation:.9s ease-in-out infinite alternate catalog-pulse}@keyframes catalog-pulse{to{opacity:.28}}.skill-rows>li{grid-template-columns:34px minmax(0,1fr) 34px 34px;align-items:stretch}.skill-row-main{grid-template-columns:44px minmax(210px,1fr) minmax(126px,152px) 76px;align-items:center;gap:12px;min-height:104px;padding:12px 8px;display:grid}.skill-row-copy{text-align:left;gap:3px;display:grid}.skill-row-copy .category-path{color:var(--category-color);font-size:12px;font-weight:700;line-height:1.35}.skill-row-copy strong{overflow-wrap:anywhere;line-height:1.35}.skill-row-copy small{color:var(--muted);white-space:normal;-webkit-line-clamp:2;-webkit-box-orient:vertical;line-height:1.55;display:-webkit-box;overflow:hidden}.skill-row-meta{flex-direction:column;align-items:flex-start;gap:6px;display:flex}.skill-row-meta>span,.skill-row-meta>code{max-width:100%}.platform-tags,.detail-platforms,.metadata-tags{flex-wrap:wrap;gap:4px;min-width:0;display:flex}.platform-tags>span,.detail-platforms>span,.metadata-tags>span{border:1px solid var(--line);max-width:100%;color:var(--ink-soft);text-overflow:clip;white-space:normal;overflow-wrap:anywhere;border-radius:4px;padding:2px 6px;font-size:12px;line-height:1.35;display:inline-flex;overflow:visible}.skill-row-heat{min-width:0}.skill-row-heat .spark{width:68px;max-width:100%}.row-detail-link,.compare-toggle{align-self:center}.catalog-pagination{border-top:1px solid var(--line);justify-content:center;align-items:center;gap:14px;padding:18px 10px 4px;display:flex}.catalog-pagination button{border:1px solid var(--line-strong);background:var(--surface);min-height:38px;color:var(--cool);font:inherit;cursor:pointer;border-radius:5px;justify-content:center;align-items:center;gap:6px;padding:0 12px;font-size:13px;font-weight:700;display:inline-flex}.catalog-pagination button:disabled{opacity:.38;cursor:not-allowed}.catalog-pagination span{color:var(--muted);font-size:12px}.skill-preview{width:auto;max-width:100%;overflow:hidden}.preview-kicker{justify-content:space-between;align-items:baseline;gap:12px;margin:0 0 12px;display:flex}.preview-kicker>*{min-width:0}.preview-category{color:var(--category-color);overflow-wrap:anywhere;margin:0 0 8px;font-size:12px;font-weight:700;line-height:1.4;display:block}.skill-preview h2{overflow-wrap:anywhere;white-space:normal;margin:0 0 9px;font-size:20px;line-height:1.3;position:static}.preview-summary{overflow-wrap:anywhere;margin:0 0 16px;line-height:1.65}.skill-detail-hero{grid-template-columns:minmax(0,1fr) minmax(260px,300px);gap:34px}.rank-sheet{grid-template-columns:minmax(0,1fr)}.ranking-signal-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.ranking-signal-grid>div{grid-template-columns:minmax(0,1fr) auto;align-items:baseline;gap:8px 14px;display:grid}.ranking-signal-grid>div>span,.ranking-signal-grid>div>small{overflow-wrap:anywhere;min-width:0}.metadata>div{grid-template-columns:minmax(92px,112px) minmax(0,1fr);align-items:start}.metadata dd{min-width:0}.breakable-code,.file-path,.metadata code{overflow-wrap:anywhere;word-break:break-all;white-space:normal;max-width:100%}.file-tree-scroll{overscroll-behavior:contain;border-top:1px solid var(--line);border-bottom:1px solid var(--line);max-height:420px;overflow:auto}.file-tree li{grid-template-columns:minmax(0,1fr) minmax(64px,auto)}.file-path{word-break:break-word;min-width:0}.file-meta{color:var(--muted);white-space:nowrap;justify-self:end}@media (width<=1160px){.catalog-grid{grid-template-columns:minmax(180px,210px) minmax(0,1fr)}.skill-preview{display:none}}@media (width<=820px){.catalog-workbench{overflow-x:clip}.catalog-grid{display:block}.catalog-filters{scrollbar-gutter:auto;max-height:none;display:none}.catalog-filters.is-open{z-index:80;background:var(--surface);padding:16px;display:block;position:fixed;inset:56px 0 0;overflow-y:auto}.catalog-filters.is-open header{z-index:1;background:var(--surface);position:sticky;top:-16px}.skill-detail-hero,.skill-detail-layout{grid-template-columns:1fr;gap:24px}.rank-sheet{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (width<=680px){.catalog-statusbar{align-items:flex-start}.catalog-status-copy{flex-wrap:wrap}.skill-rows>li{grid-template-columns:28px minmax(0,1fr) 34px 34px}.skill-row-main{grid-template-columns:40px minmax(0,1fr) 64px;gap:8px;min-height:120px;padding:10px 4px}.skill-row-meta{display:none}.skill-row-copy small{-webkit-line-clamp:3}.skill-row-heat .spark{width:58px}.catalog-pagination{gap:8px}.catalog-pagination button{min-width:42px;padding-inline:9px}.ranking-signal-grid,.rank-sheet{grid-template-columns:1fr}.metadata>div{grid-template-columns:82px minmax(0,1fr)}.file-tree li{grid-template-columns:minmax(0,1fr)}.file-meta{white-space:normal;justify-self:start}}.why-reading-grid-expanded{grid-template-columns:minmax(0,74ch) minmax(280px,320px);align-items:start;gap:clamp(36px,5vw,72px)}.why-longform{max-width:76ch}.why-longform>section{border-bottom:1px solid var(--line);margin:0 0 36px;padding:0 0 36px}.why-longform h2{margin:0 0 18px;font-size:25px;line-height:1.3}.why-longform p{max-width:74ch;margin:0 0 1.1em;font-size:15px;line-height:1.86}.plain-language-section{background:var(--cool-soft);border-top:1px solid #c8dce5;border-bottom-color:#c8dce5!important;margin-inline:-18px!important;padding:26px 18px 30px!important}.plain-language-section h2{color:#25576d}.plain-language-section p{color:#35464e}.why-reference-rail{gap:22px;min-width:0;display:grid;position:sticky;top:80px}.why-reference-rail.why-connections{grid-template-columns:1fr}.why-reference-rail>section{min-width:0}.why-side-links{border-top:2px solid var(--line-strong)}.why-side-links h2{margin:0;padding:12px 0 10px;font-size:14px}.why-side-links a{border-top:1px solid var(--line);min-width:0;color:var(--cool);grid-template-columns:minmax(0,1fr) auto;gap:8px;padding:10px 0;font-size:13px;display:grid}.why-side-links a>span{overflow-wrap:anywhere;min-width:0}.why-sources a{grid-template-columns:1fr}.why-sources small{color:var(--muted);overflow-wrap:anywhere}.analytics-page{padding-block:38px 90px}.analytics-login{border-top:3px solid var(--cool);background:var(--surface);gap:26px;width:min(100%,620px);margin:28px auto;padding:28px;display:grid;box-shadow:0 12px 36px #231e1814}.analytics-login h1,.analytics-dashboard h1{margin:5px 0 8px;font-size:clamp(30px,4vw,40px)}.analytics-login p,.analytics-dashboard header p{color:var(--muted);margin:0}.analytics-login>div>span,.analytics-dashboard header>div>span{color:var(--cool);letter-spacing:.09em;font-size:12px;font-weight:700}.analytics-login form{gap:12px;display:grid}.analytics-login label{gap:7px;font-size:13px;font-weight:700;display:grid}.analytics-login input{border:1px solid var(--line-strong);background:var(--paper);min-height:44px;font:inherit;padding:8px 10px}.analytics-login form p{color:var(--danger)}.analytics-login small{color:var(--muted);line-height:1.6}.analytics-dashboard{gap:24px;display:grid}.analytics-dashboard>header{border-bottom:1px solid var(--line-strong);justify-content:space-between;align-items:end;gap:24px;padding-bottom:20px;display:flex}.analytics-controls{gap:8px;display:flex}.analytics-controls select{border:1px solid var(--line-strong);background:var(--surface);min-height:40px;padding:0 32px 0 10px}.analytics-loading{color:var(--cool);margin:0;font-size:13px}.analytics-kpis{border:1px solid var(--line-strong);background:var(--surface);grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.analytics-kpis article{border-right:1px solid var(--line);grid-template-columns:1fr auto;gap:4px 12px;min-width:0;padding:20px;display:grid}.analytics-kpis article:last-child{border-right:0}.analytics-kpis span,.analytics-kpis small{color:var(--muted);font-size:12px}.analytics-kpis b{color:var(--heat);grid-area:1/2/span 2;font-size:30px}.analytics-kpis strong{grid-column:1/-1;margin-top:5px;font-size:13px}.analytics-grid{grid-template-columns:minmax(0,1.35fr) minmax(230px,.75fr) minmax(230px,.8fr);align-items:start;gap:18px;display:grid}.analytics-panel{border:1px solid var(--line);background:var(--surface);min-width:0;padding:18px}.analytics-panel h2{margin:0 0 12px;font-size:17px}.analytics-panel h2:not(:first-child){margin-top:24px}.analytics-panel ol{margin:0;padding:0;list-style:none}.analytics-panel li{border-top:1px solid var(--line);justify-content:space-between;gap:14px;min-width:0;padding:8px 0;font-size:12px;display:flex}.analytics-panel code,.analytics-panel li>span:first-child{overflow-wrap:anywhere;min-width:0}.analytics-empty{border-top:1px solid var(--line);color:var(--muted);margin:0;padding:18px 0;font-size:13px;line-height:1.65}.operations-dashboard{gap:20px;display:grid}.operations-dashboard>header{border-bottom:1px solid var(--line-strong);justify-content:space-between;align-items:end;gap:24px;padding-bottom:20px;display:flex}.operations-dashboard h1{margin:0 0 8px;font-size:clamp(30px,4vw,40px)}.operations-dashboard header p{color:var(--muted);margin:0}.operations-error{color:var(--danger);margin:0}.operations-run{border:1px solid var(--line-strong);background:var(--surface);gap:14px;padding:20px;display:grid}.operations-run-heading{grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:12px;display:grid}.operations-run-heading span{color:var(--muted);font-size:12px}.operations-run-heading h2{margin:2px 0 0;font-size:19px}.operations-run-heading>strong{color:var(--cool);font-variant-numeric:tabular-nums;font-size:28px}.operations-progress,.operations-meter{background:var(--paper-deep);height:7px;overflow:hidden}.operations-progress i,.operations-meter i{background:var(--cool);height:100%;display:block}.operations-status-failed .operations-progress i{background:var(--danger)}.operations-status-not-published .operations-progress i{background:var(--heat)}.operations-run dl,.operations-panel dl{gap:8px;margin:0;display:grid}.operations-run dl{grid-template-columns:repeat(2,minmax(0,1fr))}.operations-run dl>div,.operations-panel dl>div{border-top:1px solid var(--line);justify-content:space-between;gap:16px;min-width:0;padding-top:8px;display:flex}.operations-run dt,.operations-panel dt{color:var(--muted);font-size:12px}.operations-run dd,.operations-panel dd{text-align:right;overflow-wrap:anywhere;min-width:0;margin:0;font-size:13px;font-weight:700}.operations-grid{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:16px;display:grid}.operations-panel{border-top:2px solid var(--line-strong);background:var(--surface);gap:14px;min-width:0;padding:18px;display:grid}.operations-panel h2{align-items:center;gap:8px;margin:0;font-size:17px;display:flex}.operations-panel h3{margin:8px 0 0;font-size:13px}.operations-counts{grid-template-columns:repeat(3,minmax(0,1fr))}.operations-counts>div{gap:3px!important;display:grid!important}.operations-counts dd{text-align:left;color:var(--heat);font-size:22px}.operations-warning,.operations-ok{align-items:flex-start;gap:7px;margin:0;font-size:13px;line-height:1.55;display:flex}.operations-warning{color:#8a361f}.operations-ok{color:#27634b}.operations-errors{gap:0;margin:0;padding:0;list-style:none;display:grid}.operations-errors li{border-top:1px solid var(--line);justify-content:space-between;gap:12px;padding:7px 0;font-size:12px;display:flex}.operations-errors code{overflow-wrap:anywhere;min-width:0}.operations-meter{margin-top:2px}.analytics-trend{align-items:end;gap:4px;height:210px;padding-top:20px;display:flex;overflow-x:auto}.analytics-trend>div{text-align:center;grid-template-rows:1fr auto auto;align-items:end;gap:3px;min-width:22px;height:100%;display:grid}.analytics-trend i{background:var(--cool);opacity:.74;align-self:end;width:100%}.analytics-trend span{color:var(--muted);font-size:12px}.analytics-trend b{font-size:12px}.analytics-panel-heading{justify-content:space-between;gap:18px;display:flex}.analytics-panel-heading p{max-width:820px;color:var(--muted);margin:-4px 0 14px;font-size:12px;line-height:1.55}.analytics-funnel{border-top:1px solid var(--line-strong);grid-template-columns:repeat(6,minmax(0,1fr));margin:0;padding:0;list-style:none;display:grid}.analytics-funnel li{border-right:1px solid var(--line);grid-template-columns:24px minmax(0,1fr);align-content:start;gap:5px 8px;min-width:0;padding:14px 10px;display:grid}.analytics-funnel li:last-child{border-right:0}.analytics-funnel i{border:1px solid var(--cool);width:22px;height:22px;color:var(--cool);border-radius:50%;grid-row:1/span 3;place-items:center;font-size:11px;font-style:normal;font-weight:700;display:grid}.analytics-funnel span{overflow-wrap:anywhere;min-width:0;font-size:12px;font-weight:700;line-height:1.35}.analytics-funnel b{color:var(--heat);font-size:13px}.analytics-funnel small{color:var(--muted);font-size:11px}.analytics-table-scroll{border-top:1px solid var(--line-strong);max-width:100%;overflow-x:auto}.analytics-learning-paths table{border-collapse:collapse;width:100%;min-width:760px;font-size:12px}.analytics-learning-paths th{color:var(--muted);text-align:left;padding:9px 10px;font-size:11px;font-weight:700}.analytics-learning-paths td{border-top:1px solid var(--line);vertical-align:top;min-width:0;padding:10px}.analytics-learning-paths td:first-child{width:22%}.analytics-learning-paths td:nth-child(2){width:30%}.analytics-learning-paths a,.analytics-learning-paths code{overflow-wrap:anywhere}.analytics-learning-paths small{color:var(--muted);margin-top:3px;font-size:10px;display:block}.operations-review{border-block:1px solid var(--line-strong);gap:0;margin-top:4px;display:grid}.operations-review>header{justify-content:space-between;align-items:end;gap:18px;padding:18px 0 14px;display:flex}.operations-review>header h2{align-items:center;gap:8px;margin:0;font-size:19px;display:flex}.operations-review>header p{max-width:760px;color:var(--muted);margin:5px 0 0;font-size:12px;line-height:1.55}.operations-review>header small{color:var(--muted);flex:none;font-size:11px}.operations-review>ol{border-top:1px solid var(--line);margin:0;padding:0;list-style:none}.operations-review>ol>li{border-bottom:1px solid var(--line);grid-template-columns:minmax(210px,.9fr) minmax(260px,1.35fr) minmax(240px,.9fr) auto;align-items:center;gap:14px;min-width:0;padding:13px 0;display:grid}.operations-review>ol>li:last-child{border-bottom:0}.operations-review-skill{grid-template-columns:auto minmax(0,1fr);align-items:center;gap:5px 8px;min-width:0;display:grid}.operations-review-skill a{min-width:0;color:var(--ink);overflow-wrap:anywhere;font-weight:750}.operations-review-skill code{min-width:0;color:var(--muted);overflow-wrap:anywhere;grid-column:2;font-size:10px}.operations-priority{white-space:nowrap;border:1px solid;padding:3px 6px;font-size:10px;font-weight:750}.operations-priority.is-high{color:var(--danger)}.operations-priority.is-medium{color:#8a5b19}.operations-review-issues{flex-wrap:wrap;gap:5px;min-width:0;display:flex}.operations-review-issues span{background:var(--paper-deep);color:var(--muted);padding:3px 6px;font-size:10px;line-height:1.35}.operations-review dl{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:0;display:grid}.operations-review dl>div{gap:2px;min-width:0;display:grid}.operations-review dt{color:var(--muted);font-size:10px}.operations-review dd{overflow-wrap:anywhere;min-width:0;margin:0;font-size:11px;font-weight:700}.operations-review-open{white-space:nowrap}@media (width<=900px){.why-reading-grid-expanded{grid-template-columns:1fr}.why-longform{max-width:none}.why-reference-rail{grid-template-columns:repeat(2,minmax(0,1fr));position:static}.why-reference-rail .why-sources{grid-column:1/-1}.analytics-grid{grid-template-columns:1fr 1fr}.analytics-funnel{grid-template-columns:repeat(3,minmax(0,1fr))}.analytics-funnel li:nth-child(3){border-right:0}.analytics-funnel li:nth-child(-n+3){border-bottom:1px solid var(--line)}.analytics-grid>:first-child{grid-column:1/-1}.operations-review>ol>li{grid-template-columns:minmax(220px,1fr) minmax(260px,1.3fr)}.operations-review dl{grid-column:1}.operations-review-open{grid-area:2/2;justify-self:end}}@media (width<=620px){.why-longform h2{font-size:22px}.plain-language-section{margin-inline:-12px!important;padding-inline:12px!important}.why-reference-rail{grid-template-columns:1fr}.why-reference-rail .why-sources{grid-column:auto}.analytics-dashboard>header{display:grid}.operations-dashboard>header,.operations-grid{grid-template-columns:1fr;display:grid}.operations-run dl,.operations-counts{grid-template-columns:1fr 1fr}.analytics-kpis,.analytics-grid{grid-template-columns:1fr}.analytics-kpis article{border-right:0;border-bottom:1px solid var(--line)}.analytics-kpis article:last-child{border-bottom:0}.analytics-grid>:first-child{grid-column:auto}.analytics-funnel{grid-template-columns:1fr}.analytics-funnel li,.analytics-funnel li:nth-child(3){border-right:0;border-bottom:1px solid var(--line)}.analytics-funnel li:last-child{border-bottom:0}.operations-review>header{align-items:start;display:grid}.operations-review>ol>li{grid-template-columns:1fr;gap:10px}.operations-review dl,.operations-review-open{grid-area:auto}.operations-review-open{justify-self:start}}.preview-kicker{display:none!important}.preview-title-row{justify-content:space-between;align-items:flex-start;gap:12px;margin:0 0 8px;display:flex}.preview-title-row h2{overflow-wrap:anywhere;min-width:0;margin:0}.preview-title-row>span{color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap;flex:none;padding-top:3px;font-size:12px}.skill-detail-hero{padding-bottom:24px;display:block}.skill-detail-hero h1{margin:0 0 10px}.detail-summary{color:#454641;max-width:78ch;margin:0;line-height:1.7}.detail-identity-ledger{flex-wrap:wrap;align-items:center;gap:8px 14px;min-width:0;margin-top:16px;display:flex}.detail-category{color:var(--category-color);overflow-wrap:anywhere;margin:0;font-size:12px;font-weight:700;line-height:1.45;position:static}.detail-platforms,.detail-tags{min-width:0}.detail-rank-ledger{border-top:1px solid var(--line);border-bottom:1px solid var(--line);flex-wrap:wrap;gap:0;margin:18px 0 0;padding:10px 0;display:flex}.detail-rank-ledger>div{border-right:1px solid var(--line);align-items:baseline;gap:7px;min-width:0;padding:0 18px;display:flex}.detail-rank-ledger>div:first-child{padding-left:0}.detail-rank-ledger>div:last-child{border-right:0}.detail-rank-ledger dt,.detail-rank-ledger dd{margin:0}.detail-rank-ledger dt{color:var(--muted);font-size:12px}.detail-rank-ledger dd{color:var(--heat);font-variant-numeric:tabular-nums;font-size:15px;font-weight:700}.skill-detail-main .panel-heading{grid-template-columns:minmax(0,1fr);gap:0}.skill-detail-main .panel-heading>div{min-width:0}.catalog-filters{scrollbar-gutter:stable;overflow:hidden auto}.catalog-filters *,.catalog-filters fieldset,.catalog-filters select{max-width:100%}.catalog-filters fieldset button{white-space:normal;overflow-wrap:anywhere;min-width:0;min-height:44px}.catalog-filters fieldset button small{justify-self:end}.catalog-filters select,.search-field input,.filter-actions .button,.filter-trigger{min-height:44px}.catalog-filters>header .icon-button,.catalog-filter-backdrop{display:none}.skill-rows>li{grid-template-columns:44px minmax(0,1fr) 44px 44px}.skill-select{cursor:pointer;width:44px;min-width:44px;min-height:44px}.skill-select.disabled{cursor:not-allowed}.row-detail-link,.compare-toggle,.icon-button,.floating-error button{width:44px;min-width:44px;height:44px;min-height:44px}.catalog-pagination button,.compare-dock,.selection-tray button,.compare-panel button,.skill-detail-page .button,.detail-back,.analytics-controls select,.analytics-controls button{min-height:44px}.detail-back{align-items:center;gap:7px;display:inline-flex}.compare-overlay{z-index:100;place-items:center;padding:16px;display:grid;position:fixed;inset:0}.compare-backdrop{background:#20211f6b;border:0;position:absolute;inset:0}.compare-panel{z-index:1;overscroll-behavior:contain;background:var(--surface);width:min(1180px,100vw - 32px);max-height:calc(100dvh - 32px);position:relative;overflow:auto}.compare-panel>header{justify-content:space-between;align-items:center;gap:16px;display:flex}.compare-panel>header h2{margin:0}.compare-panel:focus-visible,.catalog-filters.is-open:focus-visible{outline:2px solid var(--cool);outline-offset:-2px}.course-stage-nav a span,.lab-ledger dt,.lab-ledger code,.live-source,.related-rank small,.catalog-filters legend,.catalog-filters fieldset button small,.skill-row-meta,.skill-row-heat span,.preview-category,.preview-contract dt,.preview-source code,.signal-bars>div,.compare-panel header span,.detail-tags span,.contract-grid span,.metadata dt,.metadata dd,.file-tree li,.file-meta,.trust-line,.selection-tray span,.selection-tray em,.why-card-meta,.quick-answer span,.why-diagram li b,.forge-scenarios span,.chapter-brief span,.lab-download-row code,.evidence-verifier header span,.evidence-state-track li,.skill-row-copy .category-path,.platform-tags>span,.detail-platforms>span,.metadata-tags>span,.analytics-kpis span,.analytics-kpis small,.analytics-panel li,.analytics-trend span,.analytics-trend b{font-size:12px}.analytics-login h1,.analytics-dashboard h1{margin:0 0 8px}.analytics-context{max-width:72ch;margin:0}.analytics-context strong{color:var(--cool);font-size:inherit;letter-spacing:normal}@media (width<=820px){.catalog-filter-backdrop{z-index:78;background:#20211f66;display:block;position:fixed;inset:0}.catalog-filters.is-open{z-index:80;overscroll-behavior:contain;border-left:1px solid var(--line-strong);background:var(--surface);width:min(420px,100vw - 24px);max-width:none;max-height:none;padding:16px 20px 28px;inset:56px 0 0 auto;overflow:hidden auto;box-shadow:-12px 0 32px #231e1824}.catalog-filters.is-open>header{border-bottom:1px solid var(--line);margin:-16px -20px 4px;padding:12px 20px;top:-16px}.catalog-filters.is-open>header .icon-button{display:grid}.skill-detail-hero,.skill-detail-layout{display:block}.skill-detail-layout>aside{margin-top:24px}}@media (width<=680px){.skill-rows>li{grid-template-columns:44px minmax(0,1fr) 44px 44px}.catalog-pagination button{min-width:44px}.detail-rank-ledger{row-gap:8px}.detail-rank-ledger>div{flex:auto;padding:0 12px}.detail-rank-ledger>div:first-child{padding-left:0}.metadata>div{border-top:1px solid var(--line);grid-template-columns:1fr;gap:2px;padding-block:7px}.metadata>div:first-child{border-top:0}.metadata dt{font-size:11px}.metadata dd{line-height:1.55}.compare-overlay{padding:0}.compare-panel{border-radius:0;width:100%;height:100dvh;max-height:100dvh}}.catalog-section>.shell.shell-wide{width:100%;max-width:none;padding-inline:clamp(6px,.55vw,10px)}.catalog-workbench{width:100%}.catalog-grid{grid-template-columns:minmax(190px,224px) minmax(560px,1fr) minmax(330px,372px);gap:clamp(18px,1.4vw,28px)}.skill-preview{overscroll-behavior:contain;scrollbar-gutter:stable;scrollbar-width:thin;align-self:start;max-height:calc(100dvh - 80px);padding-right:10px;position:sticky;top:68px;overflow:hidden auto}.skill-detail-shell{width:min(100% - 64px,1520px);max-width:1520px}.skill-detail-page{width:100%}.skill-detail-hero{padding-inline:clamp(30px,3vw,48px)}.skill-detail-layout{grid-template-columns:minmax(0,1fr) minmax(330px,390px);gap:clamp(32px,3.2vw,52px)}.skill-detail-main .detail-panel,.skill-detail-layout>aside .detail-panel{border-inline:1px solid var(--line);padding-block:clamp(26px,2vw,34px);padding-inline:clamp(36px,3.4vw,54px)}.skill-detail-layout>aside .detail-panel{padding-inline:clamp(28px,2.4vw,40px)}@media (width<=1160px){.catalog-grid{grid-template-columns:minmax(180px,210px) minmax(0,1fr)}}@media (width<=820px){.catalog-section>.shell.shell-wide,.skill-detail-shell{width:min(100% - 24px,100%);padding-inline:0}.skill-preview{max-height:none;padding-right:0;position:static;overflow:visible}.skill-detail-hero{padding-inline:18px}.skill-detail-layout{grid-template-columns:1fr}.skill-detail-main .detail-panel,.skill-detail-layout>aside .detail-panel{padding:24px 22px}}.learn-progress-head{align-items:flex-end;gap:28px}.learn-progress-head>div{max-width:760px}.learn-progress-head>div>span{color:var(--cool);font-size:12px;font-weight:700}.learn-progress-head p{color:var(--muted);margin:8px 0 0;font-size:14px;line-height:1.65}.learn-progress-head>b{flex:none;font-size:13px}.recommendation-actions{flex-wrap:wrap;gap:8px;display:flex}.recommendation-actions .button{min-height:34px}.learning-stack{border-top:1px solid var(--line-strong)}.learning-layer{border:1px solid var(--line-strong);background:#fffdf8b8;border-top:0;scroll-margin-top:76px}.learning-layer-head{border-bottom:1px solid var(--line);background:var(--surface);grid-template-columns:44px minmax(220px,.72fr) minmax(320px,1.28fr);align-items:start;gap:20px;padding:20px;display:grid}.learning-layer-head>span{color:var(--heat);font-variant-numeric:tabular-nums;font-size:13px;font-weight:800}.learning-layer-head h3{margin:0 0 7px;font-size:19px}.learning-layer-head p{color:var(--muted);margin:0;font-size:14px;line-height:1.62}.learning-layer-head dl{grid-template-columns:minmax(0,1.25fr) minmax(180px,.75fr);gap:20px;margin:0;display:grid}.learning-layer-head dl>div{min-width:0}.learning-layer-head dt{color:var(--muted);margin-bottom:6px;font-size:12px;font-weight:700}.learning-layer-head dd{margin:0;font-size:14px;line-height:1.58}.concept-tags{flex-wrap:wrap;gap:5px;display:flex}.concept-tags span{border:1px solid var(--line);background:var(--paper);padding:3px 7px;font-size:12px}.learning-layer-modules{display:grid}.course-index-row{border-bottom:1px solid var(--line);outline:none;grid-template-columns:76px minmax(0,1fr) 180px 92px;align-items:center;gap:18px;min-width:0;padding:16px 20px;transition:background-color .18s,box-shadow .18s;display:grid}.course-index-row:last-child{border-bottom:0}.course-index-row:hover{background:#ffffffb3}.course-index-row:focus-visible{box-shadow:inset 0 0 0 2px var(--cool)}.course-index-row[data-highlighted=true]{background:var(--cool-soft);box-shadow:inset 3px 0 0 var(--cool)}.course-index-number{color:var(--cool);gap:2px;display:grid}.course-index-number span{font-size:10px;font-weight:700}.course-index-number b{font-variant-numeric:tabular-nums;font-size:20px}.course-index-copy{min-width:0}.course-index-copy h4{margin:0 0 5px;font-size:15px}.course-index-copy p{color:var(--muted);margin:0;font-size:13px;line-height:1.55}.course-index-copy small{color:var(--cool);margin-top:6px;font-size:12px;display:inline-block}.course-index-row .course-state{color:var(--muted);grid-template-columns:16px minmax(0,1fr);align-items:center;gap:5px 7px;margin:0;font-size:12px;display:grid}.course-index-row .course-state i{background:var(--line);grid-column:1/-1;height:3px;overflow:hidden}.course-index-row .course-state i b{background:var(--cool);height:100%;display:block}.course-index-row>a{color:var(--cool);justify-content:flex-end;align-items:center;gap:5px;font-size:13px;font-weight:700;display:inline-flex}.architecture-context{border:1px solid var(--line-strong);background:var(--surface);margin:28px 0 34px}.architecture-context>header{border-bottom:1px solid var(--line);grid-template-columns:130px minmax(180px,.6fr) minmax(260px,1fr);align-items:baseline;gap:16px 22px;padding:18px 20px;display:grid}.architecture-context>header>span{color:var(--cool);font-size:12px;font-weight:700}.architecture-context>header h2{margin:0;font-size:20px}.architecture-context>header p{color:var(--muted);margin:0;font-size:13px;line-height:1.6}.architecture-context>header strong{border-top:1px solid var(--line);grid-column:2/-1;padding-top:12px;font-size:14px;font-weight:600}.architecture-relations{border-bottom:1px solid var(--line);grid-template-columns:repeat(4,minmax(0,1fr));display:grid}.architecture-relations>section{border-right:1px solid var(--line);min-width:0;padding:15px 18px}.architecture-relations>section:last-child{border-right:0}.architecture-relations h3,.architecture-concepts>h3{color:var(--muted);margin:0 0 8px;font-size:12px}.architecture-relations p,.architecture-relations ul{margin:0;padding:0;font-size:13px;line-height:1.55;list-style:none}.architecture-relations li+li{margin-top:5px}.architecture-relations a{overflow-wrap:anywhere;color:var(--cool)}.architecture-concepts{border-bottom:1px solid var(--line);padding:17px 20px}.architecture-concepts>div{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px;display:grid}.architecture-concepts article{border-left:2px solid var(--cool);background:var(--cool-soft);padding:13px}.architecture-concepts h4{margin:0 0 9px;font-size:14px}.architecture-concepts dl,.architecture-concepts dl>div{margin:0}.architecture-concepts dl>div+div{margin-top:8px}.architecture-concepts dt{color:var(--muted);font-size:11px;font-weight:700}.architecture-concepts dd{margin:2px 0 0;font-size:13px;line-height:1.55}.architecture-context>footer{flex-wrap:wrap;align-items:center;gap:8px 14px;padding:14px 20px;display:flex}.architecture-context>footer>span{color:var(--muted);font-size:12px;font-weight:700}.architecture-context>footer a:not(.button){color:var(--cool);font-size:12px}@media (width<=980px){.learning-layer-head{grid-template-columns:36px minmax(0,1fr)}.learning-layer-head dl{grid-column:2}.course-index-row{grid-template-columns:62px minmax(0,1fr) 150px 80px;gap:12px}.architecture-context>header{grid-template-columns:110px 1fr}.architecture-context>header p,.architecture-context>header strong{grid-column:1/-1}.architecture-relations{grid-template-columns:repeat(2,minmax(0,1fr))}.architecture-relations>section:nth-child(2){border-right:0}.architecture-relations>section:nth-child(-n+2){border-bottom:1px solid var(--line)}}@media (width<=700px){.learn-progress-head{margin-top:40px;display:grid}.learn-progress-head>b{justify-self:start}.learning-layer-head{grid-template-columns:28px minmax(0,1fr);gap:12px;padding:16px 14px}.learning-layer-head dl{grid-template-columns:1fr;gap:12px}.course-index-row{grid-template-columns:48px minmax(0,1fr);gap:10px 12px;padding:14px}.course-index-number b{font-size:17px}.course-index-row .course-state{grid-column:2;width:min(100%,210px)}.course-index-row>a{grid-column:2;justify-content:flex-start}.architecture-context{margin-inline:0}.architecture-context>header{grid-template-columns:1fr;padding:15px}.architecture-context>header p,.architecture-context>header strong{grid-column:1}.architecture-relations{grid-template-columns:1fr}.architecture-relations>section{border-right:0;border-bottom:1px solid var(--line)}.architecture-relations>section:last-child{border-bottom:0}.architecture-concepts{padding:15px}.architecture-concepts>div{grid-template-columns:1fr}.architecture-context>footer{align-items:flex-start;padding:14px 15px}}.concept-calibration{border-block:1px solid var(--line);margin:22px 0 34px;padding:18px 0 20px}.concept-calibration>:last-child{margin-bottom:0}.concept-calibration h3{flex-wrap:wrap;align-items:baseline;gap:7px 10px;margin:22px 0 9px;font-size:17px;display:flex}.concept-calibration h3:first-of-type{margin-top:0}.concept-calibration .concept-id{border:1px solid var(--line);max-width:100%;color:var(--muted);background:var(--surface);overflow-wrap:anywhere;padding:2px 6px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:11px;font-weight:600;line-height:1.35;display:inline-flex}.concept-calibration ul{margin:0;padding-left:20px}.concept-calibration li{margin-block:6px}.concept-calibration strong{color:var(--ink)}@media (width<=700px){.concept-calibration{margin-bottom:28px;padding-block:16px 18px}.concept-calibration h3{font-size:16px}}.practice-queue-panel{border:1px solid var(--line-strong);background:var(--surface);margin:0 0 24px;padding:18px 20px}.practice-queue-panel>header{align-items:flex-start;gap:12px;display:flex}.practice-queue-panel>header>svg{color:var(--cool);flex:none;margin-top:3px}.practice-queue-panel h2{align-items:center;gap:9px;margin:0;font-size:18px;display:flex}.practice-queue-panel h2 span{border:1px solid var(--line);text-align:center;min-width:24px;padding:1px 7px;font-size:11px}.practice-queue-panel header p,.practice-queue-empty{color:var(--muted);margin:4px 0 0;font-size:13px}.practice-queue-panel ol{border-top:1px solid var(--line);margin:16px 0 0;padding:0;list-style:none}.practice-queue-panel li{border-bottom:1px solid var(--line);grid-template-columns:minmax(0,1fr) auto;gap:18px;padding:14px 0;display:grid}.practice-queue-panel li>div:first-child{gap:4px;min-width:0;display:grid}.practice-queue-panel li span,.practice-queue-panel li small{color:var(--muted);font-size:12px;line-height:1.55}.practice-queue-actions{align-items:center;gap:10px;display:flex}.practice-queue-actions a,.practice-queue-actions button{color:var(--cool);cursor:pointer;background:0 0;border:0;align-items:center;gap:5px;font-size:12px;display:inline-flex}.practice-queue-actions button{color:var(--muted)}.practice-queue-button:disabled{opacity:.66;cursor:default}.practice-queue-button-compact{color:var(--cool);cursor:pointer;background:0 0;border:0;align-items:center;gap:5px;padding:0;font-size:12px;display:inline-flex}.learning-portfolio-panel{border-block:1px solid var(--line-strong);grid-template-columns:minmax(260px,1.4fr) repeat(2,auto);align-items:center;gap:18px 24px;margin:0 0 28px;padding:18px 0;display:grid}.learning-portfolio-copy{min-width:0}.learning-portfolio-copy>span{color:var(--cool);letter-spacing:.08em;font-size:11px;font-weight:700}.learning-portfolio-copy h2{align-items:center;gap:8px;margin:5px 0 4px;font-size:18px;display:flex}.learning-portfolio-copy h2 svg{color:var(--cool);flex:none}.learning-portfolio-copy p{max-width:720px;color:var(--muted);margin:0;font-size:12px;line-height:1.6}.learning-portfolio-stats{border-left:1px solid var(--line);grid-template-columns:repeat(3,minmax(70px,auto));margin:0;display:grid}.learning-portfolio-stats div{border-right:1px solid var(--line);gap:3px;padding:3px 14px;display:grid}.learning-portfolio-stats dt{color:var(--muted);white-space:nowrap;font-size:11px}.learning-portfolio-stats dd{color:var(--cool);margin:0;font-size:21px;font-weight:700}.learning-portfolio-actions{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.learning-portfolio-actions .button{min-height:36px;padding:7px 10px;font-size:12px}.learning-portfolio-actions label input{opacity:0;width:1px;height:1px;position:absolute}.learning-portfolio-panel output{grid-column:1/-1;align-items:flex-start;gap:7px;margin-top:-8px;font-size:12px;line-height:1.5;display:flex}.learning-portfolio-panel output svg{flex:none;margin-top:2px}.portfolio-message-success{color:var(--safe)}.portfolio-message-error{color:var(--danger)}.related-skill-actions{align-content:center;justify-items:end;gap:8px;display:grid}.learning-next-item{border-bottom:1px solid var(--line);padding:14px 0}.learning-next-item>a{border:0;padding:0 0 10px}.learning-next-item dl{gap:7px;margin:0;display:grid}.learning-next-item dl>div{grid-template-columns:82px minmax(0,1fr);gap:8px;display:grid}.learning-next-item dt{color:var(--muted);font-size:11px}.learning-next-item dd{overflow-wrap:anywhere;min-width:0;margin:0;font-size:12px;line-height:1.55}.learning-next-item code{overflow-wrap:anywhere;font-size:11px}.learning-next-actions{flex-wrap:wrap;gap:7px;margin-top:12px;display:flex}.learning-next-actions .button{min-height:32px;padding:5px 9px;font-size:11px}.home-signal-state{align-items:center;min-height:190px}@media (width<=700px){.learning-portfolio-panel{grid-template-columns:1fr;gap:14px}.learning-portfolio-stats{border-left:0;grid-template-columns:repeat(2,minmax(0,1fr))}.learning-portfolio-stats div:first-child{border-left:1px solid var(--line)}.learning-portfolio-actions{justify-content:flex-start}.learning-portfolio-panel output{grid-column:auto;margin-top:0}.practice-queue-panel{padding:15px}.practice-queue-panel li{grid-template-columns:1fr}.practice-queue-actions{justify-content:space-between}.related-skill-actions{justify-items:start}.learning-next-item dl>div{grid-template-columns:1fr;gap:2px}}.catalog-notice-stale{color:#714b08;background:#fff8e8;border-color:#d6b779}.learn-progress-metrics{border:1px solid var(--line);background:#fffdf8b3;grid-template-columns:repeat(4,minmax(78px,1fr));min-width:min(100%,390px);margin:0;display:grid}.learn-progress-metrics>div{border-right:1px solid var(--line);min-width:0;padding:9px 11px}.learn-progress-metrics>div:last-child{border-right:0}.learn-progress-metrics dt{color:var(--muted);font-size:11px;line-height:1.35}.learn-progress-metrics dd{color:var(--cool);font-variant-numeric:tabular-nums;align-items:baseline;gap:3px;margin:3px 0 0;font-size:19px;font-weight:750;display:flex}.learn-progress-metrics dd span{color:var(--muted);font-size:10px;font-weight:600}.learning-view-toolbar{justify-content:space-between;align-items:center;gap:16px;margin:0 0 14px;display:flex}.learning-view-toolbar>small{max-width:58ch;color:var(--muted);text-align:right;font-size:11px;line-height:1.5}.segmented-control{border:1px solid var(--line-strong);background:#fffdf8b8;border-radius:7px;flex:none;grid-template-columns:repeat(2,minmax(0,1fr));padding:3px;display:inline-grid}.segmented-control button{min-height:32px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:4px;justify-content:center;align-items:center;gap:6px;padding:5px 10px;font-size:12px;font-weight:650;display:inline-flex}.segmented-control button:hover{color:var(--ink);background:#236b8e0f}.segmented-control button.active{color:#fff;background:var(--cool)}.segmented-control button:focus-visible{outline:2px solid var(--cool);outline-offset:2px}.segmented-control button.active:focus-visible{outline-color:var(--ink)}.learning-order{border:1px solid var(--line-strong);background:#fffdf8b8}.learning-order>header{border-bottom:1px solid var(--line-strong);background:var(--surface);grid-template-columns:minmax(180px,.55fr) minmax(280px,1fr);align-items:end;gap:24px;padding:18px 20px;display:grid}.learning-order>header span{color:var(--cool);font-size:11px;font-weight:700}.learning-order>header h3{margin:3px 0 0;font-size:19px}.learning-order>header p{color:var(--muted);margin:0;font-size:13px;line-height:1.6}.learning-order-modules{display:grid}.learn-workbench{border-top:1px solid var(--line-strong);gap:0;margin-top:52px;padding-top:28px;display:grid}.learn-workbench .learning-portfolio-panel{grid-template-columns:minmax(260px,1.35fr) minmax(300px,auto) minmax(210px,auto)}.learning-portfolio-stats{grid-template-columns:repeat(4,minmax(70px,auto))}@media (width<=980px){.learn-progress-head{align-items:stretch}.learn-progress-metrics{min-width:0}.learn-workbench .learning-portfolio-panel{grid-template-columns:1fr}.learning-portfolio-stats{border-left:0}.learning-portfolio-stats div:first-child{border-left:1px solid var(--line)}.learning-portfolio-actions{justify-content:flex-start}}@media (width<=700px){.learn-progress-head{gap:16px}.learn-progress-metrics{grid-template-columns:repeat(2,minmax(0,1fr));width:100%}.learn-progress-metrics>div:nth-child(2){border-right:0}.learn-progress-metrics>div:nth-child(-n+2){border-bottom:1px solid var(--line)}.learning-view-toolbar{flex-direction:column;align-items:stretch}.learning-view-toolbar>small{text-align:left;max-width:none}.segmented-control{width:100%}.segmented-control button{white-space:normal;min-width:0}.learning-order>header{grid-template-columns:1fr;gap:9px;padding:15px 14px}.learn-workbench{margin-top:40px;padding-top:22px}.learning-portfolio-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.learning-portfolio-stats div:nth-child(2){border-right:0}.learning-portfolio-stats div:nth-child(-n+2){border-bottom:1px solid var(--line)}}.why-learning-links{display:grid}.why-learning-links>h2{border-bottom:1px solid var(--line)}.why-learning-link{border-bottom:1px solid var(--line);min-width:0;padding:12px 0}.why-learning-links .why-learning-link>a{border:0;grid-template-columns:72px minmax(0,1fr);gap:4px 10px;padding:0;display:grid}.why-learning-link>a b{color:var(--cool);font-variant-numeric:tabular-nums;font-size:11px}.why-learning-link>a span{min-width:0;color:var(--ink);overflow-wrap:anywhere;font-weight:700;line-height:1.45}.why-learning-link>a small{color:var(--muted);grid-column:2;font-size:11px;line-height:1.5}.why-learning-link>div{flex-wrap:wrap;gap:12px;padding:9px 0 0 82px;display:flex}.why-learning-links .why-learning-link>div>a{border:0;grid-template-columns:none;gap:0;padding:0;font-size:11px;font-weight:700;display:inline-flex}.learning-next-title{padding-bottom:9px!important}.learning-path-links{border-top:1px solid var(--line);margin:1px 0 12px;display:grid}.learning-next .learning-path-link{border-bottom:1px solid var(--line);min-width:0;color:var(--ink);grid-template-columns:88px minmax(0,1fr);gap:8px;padding:8px 0;display:grid}.learning-path-link>span{color:var(--muted);font-size:11px}.learning-path-link>b{overflow-wrap:anywhere;min-width:0;font-size:11px;line-height:1.5}.learning-path-link code{color:var(--cool)}.learning-path-link.is-muted{color:var(--muted)}.operations-quality{border-block:1px solid var(--line-strong);gap:0;margin-top:6px;display:grid}.operations-quality>header{padding:18px 0 14px}.operations-quality>header h2{align-items:center;gap:8px;margin:0;font-size:19px;display:flex}.operations-quality>header p{max-width:760px;color:var(--muted);margin:5px 0 0;font-size:12px;line-height:1.55}.operations-quality-ledger{border-block:1px solid var(--line);grid-template-columns:repeat(4,minmax(0,1fr));margin:0;display:grid}.operations-quality-ledger>div{border-right:1px solid var(--line);gap:3px;min-width:0;padding:13px 16px;display:grid}.operations-quality-ledger>div:first-child{padding-left:0}.operations-quality-ledger>div:last-child{border-right:0}.operations-quality-ledger dt{color:var(--muted);font-size:11px}.operations-quality-ledger dd{color:var(--cool);font-variant-numeric:tabular-nums;margin:0;font-size:22px;font-weight:750}.operations-quality-grid{grid-template-columns:.8fr 1fr 1.2fr;display:grid}.operations-quality-grid>section{border-right:1px solid var(--line);min-width:0;padding:18px 18px 20px}.operations-quality-grid>section:first-child{padding-left:0}.operations-quality-grid>section:last-child{border-right:0;padding-right:0}.operations-quality-grid h3{align-items:center;gap:7px;margin:0 0 12px;font-size:14px;display:flex}.operations-quality-grid dl{gap:0;margin:0;display:grid}.operations-quality-grid dl>div{border-top:1px solid var(--line);justify-content:space-between;gap:12px;padding:8px 0;display:flex}.operations-quality-grid dt{color:var(--muted);font-size:12px}.operations-quality-grid dd{margin:0;font-size:13px;font-weight:750}.operations-quality-grid .is-warning{color:var(--danger)}.operations-quality-grid .is-ok{color:var(--safe)}.operations-quality-bars{gap:8px;margin:0;padding:0;list-style:none;display:grid}.operations-quality-bars li{grid-template-columns:minmax(50px,auto) minmax(60px,1fr) 28px;align-items:center;gap:8px;min-width:0;font-size:11px;display:grid}.operations-quality-bars span,.operations-quality-bars code{overflow-wrap:anywhere;min-width:0}.operations-quality-bars i{background:var(--paper-deep);height:5px;overflow:hidden}.operations-quality-bars i b{background:var(--cool);height:100%;display:block}.operations-quality-bars strong{text-align:right;font-variant-numeric:tabular-nums}.operations-category-bars li{grid-template-columns:minmax(104px,.85fr) minmax(54px,1fr) 28px}.operations-category-bars i b{background:var(--heat)}.analytics-funnel li:nth-child(-n+6){border-bottom:1px solid var(--line)}.analytics-funnel li:nth-child(6){border-right:0}.learning-review-options label:has(input:checked){box-shadow:none}.learning-review-feedback{border:1px solid}.learning-review-message{border:1px solid var(--danger)}.learning-review-message.is-saved{border-color:var(--safe)}@media (width<=900px){.operations-quality-grid{grid-template-columns:1fr 1fr}.operations-quality-grid>section{border-bottom:1px solid var(--line)}.operations-quality-grid>section:nth-child(2){border-right:0;padding-right:0}.operations-quality-grid>section:last-child{border-bottom:0;grid-column:1/-1;padding-left:0}.analytics-funnel li:nth-child(-n+9){border-bottom:1px solid var(--line)}.analytics-funnel li:nth-child(3n){border-right:0}}@media (width<=620px){.why-learning-link>div{padding-left:0}.operations-quality-ledger{grid-template-columns:repeat(2,minmax(0,1fr))}.operations-quality-ledger>div{padding-inline:0 12px}.operations-quality-ledger>div:nth-child(2){border-right:0;padding-right:0}.operations-quality-ledger>div:nth-child(-n+2){border-bottom:1px solid var(--line)}.operations-quality-grid{grid-template-columns:1fr}.operations-quality-grid>section,.operations-quality-grid>section:nth-child(2),.operations-quality-grid>section:last-child{border-right:0;border-bottom:1px solid var(--line);grid-column:auto;padding:16px 0}.operations-quality-grid>section:last-child{border-bottom:0}.learning-next .learning-path-link{grid-template-columns:1fr;gap:2px}.analytics-funnel li:nth-child(-n+11){border-bottom:1px solid var(--line)}}.analytics-dashboard,.analytics-dashboard>*,.analytics-panel-heading>div{min-width:0}.analytics-funnel-compact,.analytics-funnel-toggle{display:none}.analytics-funnel-full{display:grid}.analytics-funnel-toggle{white-space:nowrap;flex:none;align-self:start}.analytics-table-scroll{overscroll-behavior-inline:contain;width:100%;min-width:0}.analytics-stage-dropoff table{border-collapse:collapse;width:100%;min-width:780px;font-size:12px}.analytics-stage-dropoff th{color:var(--muted);text-align:left;padding:9px 10px;font-size:11px;font-weight:700}.analytics-stage-dropoff td{border-top:1px solid var(--line);vertical-align:top;min-width:0;padding:10px}.analytics-stage-dropoff td:first-child{width:22%}.analytics-stage-dropoff td:nth-child(2){width:29%}.analytics-stage-dropoff td:nth-child(2) b{border:1px solid var(--cool);width:24px;height:24px;color:var(--cool);place-items:center;margin-right:8px;font-size:10px;display:inline-grid}.analytics-stage-dropoff code{overflow-wrap:anywhere}.analytics-stage-dropoff small{color:var(--muted);margin-top:3px;font-size:10px;display:block}@media (width<=620px){.analytics-panel-heading{gap:8px;display:grid}.analytics-funnel-toggle{justify-self:start;display:inline-flex}.analytics-funnel-compact{display:grid}.analytics-funnel-full,.analytics-funnel-panel[data-expanded=true] .analytics-funnel-compact{display:none}.analytics-funnel-panel[data-expanded=true] .analytics-funnel-full{display:grid}.analytics-funnel-panel .analytics-funnel li{border-right:0;border-bottom:1px solid var(--line)}.analytics-funnel-panel .analytics-funnel li:last-child{border-bottom:0}.analytics-stage-dropoff{overflow:hidden}}.operations-dashboard,.operations-dashboard>*,.operations-assurance>*,.operations-review>ol>li>*{min-width:0}.operations-assurance{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:16px;display:grid}.operations-health,.operations-freshness{border-top:2px solid var(--line-strong);background:var(--surface);gap:14px;min-width:0;padding:18px;display:grid}.operations-health{border-top-color:var(--safe)}.operations-health-degraded{border-top-color:var(--heat)}.operations-health-critical{border-top-color:var(--danger)}.operations-health>header,.operations-freshness>header,.operations-editorial-log>header{justify-content:space-between;align-items:start;gap:16px;display:flex}.operations-health h2,.operations-freshness h2,.operations-editorial-log h2{align-items:center;gap:8px;margin:0;font-size:17px;display:flex}.operations-health header p,.operations-freshness header p,.operations-editorial-log header p{color:var(--muted);margin:4px 0 0;font-size:12px;line-height:1.55}.operations-health>header>strong{color:var(--safe);border:1px solid;flex:none;padding:3px 7px;font-size:11px}.operations-health-degraded>header>strong{color:var(--heat)}.operations-health-critical>header>strong{color:var(--danger)}.operations-health h3{margin:2px 0 0;font-size:12px}.operations-health-reasons{gap:6px;margin:0;padding:0;list-style:none;display:grid}.operations-health-reasons li{min-width:0;color:var(--danger);overflow-wrap:anywhere;align-items:flex-start;gap:7px;font-size:12px;line-height:1.5;display:flex}.operations-health-reasons svg{flex:none;margin-top:2px}.operations-health-clear{color:var(--safe);margin:0;font-size:12px;line-height:1.55}.operations-health-checks{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 16px;margin:0;display:grid}.operations-health-checks>div{border-top:1px solid var(--line);justify-content:space-between;gap:10px;min-width:0;padding:7px 0;display:flex}.operations-health-checks dt,.operations-health-checks dd{overflow-wrap:anywhere;min-width:0;margin:0;font-size:11px}.operations-health-checks dt{color:var(--muted)}.operations-health-checks dd{text-align:right;justify-content:flex-end;align-items:center;gap:6px;font-weight:700;display:inline-flex}.operations-status-dot{background:var(--safe);border-radius:50%;flex:none;width:7px;height:7px}.operations-status-dot.is-degraded{background:var(--heat)}.operations-status-dot.is-critical{background:var(--danger)}.operations-freshness-budgets{border-block:1px solid var(--line);grid-template-columns:repeat(3,minmax(0,1fr));margin:0;display:grid}.operations-freshness-budgets>div{border-right:1px solid var(--line);gap:2px;min-width:0;padding:9px 10px;display:grid}.operations-freshness-budgets>div:first-child{padding-left:0}.operations-freshness-budgets>div:last-child{border-right:0;padding-right:0}.operations-freshness-budgets dt{color:var(--muted);font-size:10px}.operations-freshness-budgets dd{margin:0;font-size:12px;font-weight:750}.operations-freshness-list{gap:7px;margin:0;padding:0;list-style:none;display:grid}.operations-freshness-list li{border:1px solid var(--line);background:#fffdf899;min-width:0;padding:9px 10px}.operations-freshness-list li.is-overdue{border-color:color-mix(in srgb,var(--danger) 45%,var(--line))}.operations-freshness-list li.is-due-soon{border-color:color-mix(in srgb,var(--heat) 45%,var(--line))}.operations-freshness-list>li>div{justify-content:space-between;align-items:baseline;gap:10px;min-width:0;display:flex}.operations-freshness-list strong{overflow-wrap:anywhere;min-width:0;font-size:12px}.operations-freshness-list>li>div>span{color:var(--heat);flex:none;font-size:10px;font-weight:750}.operations-freshness-list li.is-overdue>div>span{color:var(--danger)}.operations-freshness-list li.is-unknown>div>span{color:var(--muted)}.operations-freshness-list dl{flex-wrap:wrap;gap:4px 14px;margin:5px 0 0;display:flex}.operations-freshness-list dl>div{gap:5px;font-size:10px;display:flex}.operations-freshness-list dt{color:var(--muted)}.operations-freshness-list dd{margin:0;font-weight:700}.operations-review>ol>li{grid-template-columns:minmax(185px,.8fr) minmax(210px,1fr) minmax(260px,1.05fr) minmax(270px,.95fr);align-items:start}.operations-review dl{grid-template-columns:repeat(2,minmax(0,1fr))}.operations-review dd.is-public{color:var(--safe)}.operations-review dd.is-hidden{color:var(--danger)}.operations-review-actions{gap:6px;min-width:0;display:grid}.operations-review-action-row{grid-template-columns:minmax(135px,1fr) auto auto;align-items:end;gap:7px;min-width:0;display:grid}.operations-review-action-row label{min-width:0;color:var(--muted);gap:3px;font-size:10px;display:grid}.operations-review-action-row select{border:1px solid var(--line-strong);background:var(--surface);width:100%;min-width:0;height:34px;color:var(--ink);border-radius:4px;padding:4px 24px 4px 8px;font-size:11px}.operations-review-action-row .button{white-space:nowrap;min-height:34px;padding:5px 9px}.operations-review-action-row .operations-review-open{white-space:nowrap;align-self:center}.operations-review-action-feedback{overflow-wrap:anywhere;min-width:0;margin:0;font-size:10px;line-height:1.45}.operations-review-action-feedback.is-loading{color:var(--muted)}.operations-review-action-feedback.is-success{color:var(--safe)}.operations-review-action-feedback.is-error{color:var(--danger)}.operations-editorial-log{border-block:1px solid var(--line-strong);gap:0;min-width:0;display:grid}.operations-editorial-log>header{padding:18px 0 14px}.operations-editorial-log>ol{border-top:1px solid var(--line);margin:0;padding:0;list-style:none}.operations-editorial-log>ol>li{border-bottom:1px solid var(--line);grid-template-columns:minmax(0,1fr) auto;gap:5px 16px;min-width:0;padding:10px 0;font-size:11px;display:grid}.operations-editorial-log>ol>li:last-child{border-bottom:0}.operations-editorial-log li>div{flex-wrap:wrap;gap:5px 10px;min-width:0;display:flex}.operations-editorial-log code{min-width:0;color:var(--muted);overflow-wrap:anywhere}.operations-editorial-log time{color:var(--muted);white-space:nowrap}.operations-editorial-log li>p{color:var(--muted);overflow-wrap:anywhere;grid-column:1/-1;margin:0}.operations-editorial-log li>p span{color:var(--ink);margin-right:6px;font-weight:700}@media (width<=1080px){.operations-review>ol>li{grid-template-columns:minmax(210px,.85fr) minmax(260px,1.15fr)}.operations-review dl{grid-column:1}.operations-review-actions{grid-column:2}}@media (width<=900px){.operations-assurance{grid-template-columns:1fr}}@media (width<=720px){.operations-health-checks,.operations-freshness-budgets{grid-template-columns:1fr}.operations-freshness-budgets>div,.operations-freshness-budgets>div:first-child,.operations-freshness-budgets>div:last-child{border-right:0;border-bottom:1px solid var(--line);padding:8px 0}.operations-freshness-budgets>div:last-child{border-bottom:0}.operations-review>ol>li{grid-template-columns:1fr;gap:10px}.operations-review dl,.operations-review-actions{grid-column:auto}.operations-review-action-row{grid-template-columns:minmax(0,1fr) auto}.operations-review-action-row .operations-review-open{grid-column:1/-1;justify-self:start}.operations-editorial-log>ol>li{grid-template-columns:1fr}.operations-editorial-log time,.operations-editorial-log li>p{grid-column:auto}}@media (width<=420px){.operations-health,.operations-freshness{padding:15px 13px}.operations-health>header,.operations-freshness>header{display:grid}.operations-health>header>strong{justify-self:start}.operations-review-action-row{grid-template-columns:1fr}.operations-review-action-row .operations-review-open{grid-column:auto}.operations-review-action-row .button{justify-self:start}}html,body,#main{max-width:100%}html{overflow-x:clip}.course-shell,.lesson-stage,.stage-grid,.stage-grid>*,.theory-pane,.practice-pane,.lab-ledger,.course-stage-nav,.flow-diagram,.flow-diagram-scroll{min-width:0;max-width:100%}.practice-pane{max-height:none;position:static;overflow:visible}.theory-content,.theory-content>*,.theory-content p,.theory-content li,.theory-content dd,.practice-content,.practice-content>*,.practice-content p,.practice-content li,.practice-content dd,.lab-block,.lab-block>*,.lab-block p,.lab-block li{overflow-wrap:anywhere;min-width:0;max-width:100%}.course-shell :not(pre)>code,.lab-ledger code{white-space:normal;overflow-wrap:anywhere;word-break:break-word}.lab-ledger{z-index:2;position:sticky;top:124px}.flow-diagram{overflow:hidden}.flow-diagram-scroll{overscroll-behavior-inline:contain;width:100%;max-width:100%;overflow-x:auto}.flow-diagram-track{align-items:center;gap:7px;width:max-content;min-width:100%;display:flex}.flow-step-wrap{flex:none;align-items:center;gap:7px;display:inline-flex}@media (width<=900px){.lab-ledger{position:static}}.client-intro,.client-intro .intro-grid,.client-intro .intro-grid>*,.client-intro .hero-actions,.terminal-card,.manual-grid,.manual-grid>*{min-width:0;max-width:100%}.terminal-card{width:100%;overflow:hidden}.terminal-card code{white-space:pre;overscroll-behavior-inline:contain;width:100%;max-width:100%;display:block;overflow:auto hidden}.skeleton-status{color:var(--muted);font-size:12px;font-weight:650}.skeleton-line,.skeleton-check,.skeleton-rank,.skeleton-action,.skeleton-tags i,.skeleton-preview-block{background:linear-gradient(90deg,#e4dfd5 0%,#f4f0e8 48%,#e4dfd5 100%) 0 0/220% 100%;border-radius:3px;animation:1.35s ease-in-out infinite heatstack-skeleton;display:block}.skeleton-line{width:100%;height:10px;margin:9px 0}.skeleton-line.is-heading{width:62%;height:14px}.skeleton-line.is-short{width:42%}.skeleton-line.is-back{width:132px;height:12px}.skeleton-line.is-title{width:min(520px,76%);height:34px;margin-top:28px}.skeleton-line.is-summary{width:min(720px,92%);height:14px}.skeleton-check{justify-self:center;width:18px;height:18px}.skeleton-rank{justify-self:center;width:30px;height:30px}.skeleton-action{justify-self:center;width:34px;height:34px}@keyframes heatstack-skeleton{to{background-position:-220% 0}}.catalog-skeleton{min-height:640px}.catalog-skeleton .catalog-filters,.catalog-skeleton .skill-preview{padding-top:24px}.catalog-skeleton .skill-rows>li{grid-template-columns:44px 44px minmax(0,1fr) 44px;gap:12px;min-height:104px;padding:12px 0}.catalog-skeleton .skill-rows>li>span{min-width:0}.skeleton-preview-block{background-color:#fffdf8b8;margin-top:30px;padding:16px}.skeleton-preview-block .skeleton-line{animation:inherit}.skill-detail-skeleton{width:100%;min-height:680px;padding:10px 0 72px}.skill-detail-skeleton>header{border-block:1px solid var(--line-strong);background:#fffdf89e;margin-top:16px;padding:clamp(28px,3vw,46px)}.skeleton-tags{flex-wrap:wrap;gap:8px;margin-top:22px;display:flex}.skeleton-tags i{width:84px;height:26px}.skill-detail-skeleton-grid{grid-template-columns:minmax(0,1fr) minmax(300px,360px);gap:clamp(28px,3vw,48px);display:grid}.skill-detail-skeleton-main,.skill-detail-skeleton-grid>aside{min-width:0}.skill-detail-skeleton-grid section{border-bottom:1px solid var(--line);min-height:156px;padding:clamp(24px,2.5vw,38px)}.related-skills-skeleton{border-top:1px solid var(--line-strong)}.related-skills-skeleton>.skeleton-status{padding:12px 0;display:block}.related-skills-skeleton ol{margin:0;padding:0;list-style:none}.related-skills-skeleton li{border-bottom:1px solid var(--line);grid-template-columns:88px minmax(0,1fr) 160px;align-items:center;gap:18px;min-height:152px;padding:18px 0;display:grid}.related-skills-skeleton li>span{min-width:0}.operations-progress i{width:100%;transform:scaleX(var(--progress,0));transform-origin:0;transition:transform .25s ease-out}.eyebrow{letter-spacing:.08em;margin-bottom:10px;font-size:.74rem;font-weight:650}.button,.lang-switch,.mobile-nav summary,.segmented-control button,.skill-select{touch-action:manipulation}.button:focus-visible,.lang-switch:focus-visible,.mobile-nav summary:focus-visible,.row-detail-link:focus-visible,.compare-toggle:focus-visible,.skill-select:focus-within{outline:2px solid var(--cool);outline-offset:2px}@media (width<=900px){.client-intro .intro-grid,.manual-grid{grid-template-columns:1fr}.terminal-card{margin-top:8px}.skill-detail-skeleton-grid{grid-template-columns:1fr;gap:0}}@media (width<=620px),(pointer:coarse){.brand,.lang-switch,.mobile-nav summary,.button,.segmented-control button,.learning-review-footer .button,.course-nav a{min-height:44px}.lang-switch,.mobile-nav summary{min-width:44px}.course-nav a{align-items:center;padding-block:10px;display:flex}.skill-select{padding:8px}}@media (width<=620px){.client-intro .hero-actions{grid-template-columns:1fr;display:grid}.client-intro .hero-actions .button{white-space:normal;width:100%}.terminal-card{padding-inline:12px}.manual-grid pre{max-width:100%;overflow-x:auto}.catalog-skeleton .catalog-grid{grid-template-columns:1fr}.catalog-skeleton .catalog-filters,.catalog-skeleton .skill-preview{display:none}.catalog-skeleton .skill-rows>li{grid-template-columns:44px 38px minmax(0,1fr) 44px}.skill-detail-skeleton{min-height:560px}.skill-detail-skeleton>header,.skill-detail-skeleton-grid section{padding-inline:18px}.related-skills-skeleton li{grid-template-columns:58px minmax(0,1fr)}.related-skills-skeleton .skeleton-action{display:none}}@media (prefers-reduced-motion:reduce){.skeleton-line,.skeleton-check,.skeleton-rank,.skeleton-action,.skeleton-tags i,.skeleton-preview-block{background-position:50% 0;animation:none}.operations-progress i{transition:none}}.contact-sidebar-root{z-index:60;position:relative}.contact-sidebar{top:50%;right:max(12px, calc((100vw - var(--wide)) / 2 - 64px));z-index:60;flex-direction:column;gap:9px;display:flex;position:fixed;transform:translateY(-50%)}.contact-icon-button{--contact-accent:var(--ink);border:1px solid var(--line-strong);background:var(--surface);width:46px;height:46px;color:var(--contact-accent);cursor:pointer;border-radius:50%;place-items:center;padding:0;transition:color .16s,background-color .16s,border-color .16s,transform .16s;display:grid;position:relative;box-shadow:0 8px 22px #312a201f}.contact-icon-button svg{width:21px;height:21px}.contact-icon-button:hover{border-color:var(--contact-accent);background:var(--contact-accent);color:#fff;transform:translateY(-1px)}.contact-icon-button:focus-visible,.contact-mobile-trigger:focus-visible,.contact-close:focus-visible,.contact-sheet-actions a:focus-visible,.contact-sheet-actions button:focus-visible{outline:2px solid var(--cool);outline-offset:3px}.contact-icon-button:before{content:attr(data-tooltip);border:1px solid var(--line-strong);background:var(--ink);color:#fff;white-space:nowrap;opacity:0;pointer-events:none;border-radius:4px;max-width:240px;padding:5px 8px;font-size:12px;font-weight:650;line-height:1.35;transition:opacity .14s,transform .14s;position:absolute;top:50%;right:58px;transform:translate(5px,-50%)}.contact-icon-button:hover:before,.contact-icon-button:focus-visible:before{opacity:1;transform:translateY(-50%)}.contact-wechat{--contact-accent:var(--safe)}.contact-qq,.contact-linkedin,.contact-top{--contact-accent:var(--cool)}.contact-email{--contact-accent:var(--ink)}.contact-mobile-trigger{display:none}.contact-overlay{z-index:120;background:#20211fad;padding:20px;position:fixed;inset:0}.contact-qr-overlay{place-items:center;display:grid}.contact-qr-dialog,.contact-sheet{border:1px solid var(--line-strong);background:var(--surface);box-shadow:0 24px 70px #1816134d}.contact-qr-dialog{border-radius:8px;width:min(92vw,540px);max-height:calc(100vh - 40px);overflow:auto}.contact-qr-dialog>header,.contact-sheet>header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-start;gap:20px;padding:18px 20px;display:flex}.contact-qr-dialog header span,.contact-sheet header span{color:var(--muted);letter-spacing:.1em;margin-bottom:3px;font-size:11px;font-weight:700;display:block}.contact-qr-dialog h2,.contact-sheet h2{letter-spacing:0;margin:0;font-size:21px}.contact-qr-dialog header p{color:var(--muted);margin:4px 0 0;font-size:13px}.contact-close{width:44px;height:44px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:50%;flex:none;place-items:center;padding:0;display:grid}.contact-close:hover{background:var(--paper);color:var(--ink)}.contact-close svg{width:21px;height:21px}.contact-qr-image{background:#fff;place-items:center;padding:18px;display:grid}.contact-qr-image img{object-fit:contain;width:auto;max-width:100%;max-height:min(68vh,560px);display:block}.contact-qr-image.is-portrait{background:#1b1b1b}.contact-qr-image.is-portrait img{max-height:min(68vh,720px)}.contact-sheet-overlay{justify-content:center;align-items:flex-end;padding:12px;display:flex}.contact-sheet{border-radius:16px 16px 6px 6px;width:min(100%,520px);max-height:calc(100vh - 24px);overflow:auto}.contact-sheet-actions{display:grid}.contact-sheet-actions>a,.contact-sheet-actions>button{border:0;border-bottom:1px solid var(--line);min-height:66px;color:var(--ink);text-align:left;cursor:pointer;background:0 0;grid-template-columns:28px minmax(0,1fr);align-items:center;gap:12px;padding:10px 20px;display:grid}.contact-sheet-actions>:last-child{border-bottom:0}.contact-sheet-actions>a:hover,.contact-sheet-actions>button:hover{background:var(--paper)}.contact-sheet-actions svg{width:21px;height:21px;color:var(--cool)}.contact-sheet-actions span{gap:1px;min-width:0;display:grid}.contact-sheet-actions strong{font-size:14px}.contact-sheet-actions small{color:var(--muted);overflow-wrap:anywhere;font-size:12px}@media (width>=900px){body.has-contact-sidebar .catalog-section>.shell.shell-wide{padding-right:max(76px, calc((100vw - var(--wide)) / 2))}}@media (width>=900px) and (width<=1599px){body.has-contact-sidebar .shell{width:min(calc(100% - 112px),var(--max))}body.has-contact-sidebar .shell-wide{max-width:var(--wide)}}@media (width<=899px){.contact-sidebar{display:none}.contact-mobile-trigger{z-index:60;border:1px solid var(--line-strong);background:var(--ink);color:#fff;cursor:pointer;border-radius:50%;justify-content:center;align-items:center;width:44px;min-width:44px;min-height:44px;padding:0;font-size:13px;font-weight:700;display:inline-flex;position:fixed;bottom:14px;right:12px;box-shadow:0 10px 28px #20211f3d}.contact-mobile-trigger svg{width:19px;height:19px}}@media (width<=520px){.contact-overlay{padding:10px}.contact-sheet-overlay{padding:8px}.contact-sheet{max-height:calc(100vh - 16px)}.contact-qr-dialog{width:100%;max-height:calc(100vh - 20px)}.contact-qr-dialog>header,.contact-sheet>header{padding:14px 16px}.contact-qr-image{padding:12px}.contact-qr-image img{max-height:62vh}.contact-qr-image.is-portrait img{max-height:65vh}}@media (prefers-reduced-motion:reduce){.contact-icon-button,.contact-icon-button:before{transition:none}.contact-icon-button:hover{transform:none}}.home-hero,.home-signal,.home-curiosity,.home-experiment,.home-paths{overflow:hidden}.home-hero{padding:clamp(52px,7vw,88px) 0 clamp(44px,6vw,72px)}.home-hero-grid{grid-template-columns:minmax(0,1.05fr) minmax(360px,.75fr);align-items:center;gap:clamp(44px,6vw,82px);display:grid}.home-hero-grid>*,.signal-grid>*,.experiment-ticket>*,.path-ledger>*{min-width:0}.home-hero-copy h1{letter-spacing:0;max-width:760px;margin-bottom:20px;font-size:clamp(2.35rem,4.6vw,4rem);line-height:1.06}.home-hero-copy h1>span{color:var(--heat);margin-bottom:14px;font-size:clamp(1.18rem,2vw,1.55rem);font-weight:750;line-height:1.2;display:block}.home-hero-copy .hero-lead{color:#4f504b;max-width:64ch;margin-bottom:26px;font-size:clamp(.98rem,1.35vw,1.08rem)}.home-hero-copy .hero-actions{grid-template-columns:repeat(2,max-content);gap:10px;display:grid}.home-hero-copy .button svg,.home-route-map svg,.home-signal svg,.home-curiosity svg,.home-experiment svg,.home-paths svg{flex:none}.home-constraint{color:var(--muted);margin:16px 0 0;font-size:12px}.home-route-map{border-block:1px solid var(--line-strong);justify-self:end;width:100%;max-width:510px}.home-route-map>header{gap:4px;padding:18px 0 16px;display:grid}.home-route-map>header span{color:var(--muted);font-size:12px}.home-route-map>header strong{font-size:18px;line-height:1.35}.home-route-map ol{margin:0;padding:0;list-style:none}.home-route-map li{border-top:1px solid var(--line)}.home-route-map li>a{grid-template-columns:38px minmax(0,1fr) 18px;align-items:center;gap:14px;min-height:88px;padding:14px 0;display:grid}.home-route-map li>a>b{color:var(--heat);align-self:start;font-size:12px}.home-route-map li>a>span{gap:3px;display:grid}.home-route-map li strong{font-size:14px}.home-route-map li small{color:var(--muted);font-size:12px;line-height:1.55}.home-route-map li svg{color:var(--cool);transition:transform .16s}.home-route-map li a:hover svg,.home-route-map li a:focus-visible svg{transform:translate(3px)}.home-route-map>p{border-top:1px solid var(--line);color:#4f504b;margin:0;padding:16px 0 18px 52px;font-size:13px}.home-signal,.home-curiosity,.home-experiment,.home-paths{border-top:1px solid var(--line-strong);padding:clamp(46px,6vw,72px) 0}.home-signal,.home-experiment{background:#fffdf873}.home-section-title{grid-template-columns:46px minmax(0,1fr);align-items:start;gap:14px;display:grid}.home-section-title>span{color:var(--heat);padding-top:4px;font-size:12px;font-weight:750}.home-section-title h2{letter-spacing:0;margin:0;font-size:clamp(1.55rem,2.7vw,2rem)}.home-section-title small{color:var(--muted);margin-top:4px;font-size:12px;display:block}.home-signal .signal-grid{grid-template-columns:minmax(0,1.08fr) minmax(340px,.92fr);align-items:center;gap:clamp(42px,6vw,76px);display:grid}.home-signal-heading{align-content:start;display:grid}.home-signal-heading>p{max-width:64ch;color:var(--muted);margin:18px 0 12px 60px}.home-signal-heading>a,.signal-proof>a,.home-experiment a,.home-curiosity .text-link{width:fit-content;color:var(--cool);align-items:center;gap:5px;font-size:13px;font-weight:750;display:inline-flex}.home-signal-heading>a{margin-left:60px}.signal-proof{border:0;border-left:1px solid var(--heat);gap:13px;margin:0;padding:24px 0 2px 24px;display:grid}.signal-proof>span{color:var(--heat);letter-spacing:0;font-size:12px;font-weight:750}.signal-proof>p{color:#454641;margin:0}.signal-proof dl{border-block:1px solid var(--line);grid-template-columns:repeat(3,minmax(0,1fr));margin:4px 0 0;display:grid}.signal-proof dl>div{border-right:1px solid var(--line);min-width:0;padding:11px 12px}.signal-proof dl>div:first-child{padding-left:0}.signal-proof dl>div:last-child{border-right:0}.signal-proof dt{color:var(--muted);font-size:11px}.signal-proof dd{overflow-wrap:anywhere;margin:2px 0 0;font-size:13px;font-weight:750;line-height:1.45}.home-signal-state{min-height:150px}.home-signal-state .button{justify-self:end}.home-curiosity .section-heading,.home-paths .section-heading{grid-template-columns:minmax(0,1fr) minmax(280px,440px);align-items:end;gap:48px;margin-bottom:26px;display:grid}.home-curiosity .section-heading>p,.home-paths .section-heading>p{max-width:none;color:var(--muted);margin:0}.curiosity-row{border-top:1px solid var(--line-strong);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.curiosity-row>a{border-bottom:1px solid var(--line);grid-template-columns:34px minmax(0,1fr) 18px;align-items:center;gap:12px;min-height:92px;padding:16px 18px 16px 0;display:grid}.curiosity-row>a:nth-child(odd){border-right:1px solid var(--line);padding-right:28px}.curiosity-row>a:nth-child(2n){padding-left:28px}.curiosity-row b{color:var(--heat);align-self:start;font-size:12px}.curiosity-row span{font-size:15px;font-weight:650;line-height:1.55}.curiosity-row svg{color:var(--cool)}.home-curiosity .text-link{margin-top:18px}.experiment-ticket{border:1px solid var(--line-strong);background:var(--surface);grid-template-columns:minmax(0,1.12fr) minmax(340px,.88fr);display:grid}.experiment-ticket>*{border:0;min-width:0;padding:clamp(26px,3.5vw,42px)}.experiment-ticket>header{align-content:start;display:grid}.experiment-ticket h2{letter-spacing:0;max-width:22ch;margin:0;font-size:clamp(1.55rem,2.7vw,2rem)}.experiment-ticket p{color:var(--muted);margin:0}.experiment-ticket>header>p{margin:18px 0 0 60px}.experiment-impact{background:var(--cool-soft);align-content:center;gap:12px;display:grid;border-top:0!important;border-left:1px solid var(--line)!important;grid-column:auto!important}.experiment-impact h3{color:var(--cool);letter-spacing:0;margin:0;font-size:15px}.path-ledger{border-block:1px solid var(--line-strong);grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.path-ledger>a{border:0;border-right:1px solid var(--line);grid-template-columns:32px minmax(0,1fr) 18px;align-items:start;gap:12px;min-height:178px;padding:24px;display:grid}.path-ledger>a:first-child{padding-left:0}.path-ledger>a:last-child{border-right:0;padding-right:0}.path-ledger>a>b{color:var(--heat);justify-self:start;font-size:12px;display:block}.path-ledger>a>span{color:inherit;gap:9px;display:grid}.path-ledger strong{color:var(--ink);font-size:16px}.path-ledger small{color:var(--muted);font-size:13px;line-height:1.65}.path-ledger svg{color:var(--cool);margin-top:2px}.path-module-count{color:var(--cool);text-align:right;margin:14px 0 0;font-size:12px;font-weight:750}.home-route-map a:focus-visible,.home-signal a:focus-visible,.home-curiosity a:focus-visible,.home-experiment a:focus-visible,.home-paths a:focus-visible{outline:2px solid var(--cool);outline-offset:4px}@media (width<=900px){.home-hero-grid{grid-template-columns:1fr;gap:38px}.home-route-map{justify-self:stretch;max-width:none}.home-signal .signal-grid{grid-template-columns:1fr;gap:34px}.signal-proof{margin-left:60px}.path-ledger{grid-template-columns:1fr}.path-ledger>a,.path-ledger>a:first-child,.path-ledger>a:last-child{border-right:0;border-bottom:1px solid var(--line);min-height:0;padding:20px 0}.path-ledger>a:last-child{border-bottom:0}}@media (width<=760px){.home-curiosity .section-heading,.home-paths .section-heading{grid-template-columns:1fr;gap:14px}.home-curiosity .section-heading>p,.home-paths .section-heading>p{margin-left:60px}.curiosity-row{grid-template-columns:1fr}.curiosity-row>a,.curiosity-row>a:nth-child(odd),.curiosity-row>a:nth-child(2n){border-right:0;min-height:0;padding:18px 0}.experiment-ticket{grid-template-columns:1fr}.experiment-impact{border-top:1px solid var(--line)!important;border-left:0!important}}@media (width<=620px){.home-hero{padding:38px 0 42px}.home-signal,.home-curiosity,.home-experiment,.home-paths{padding:38px 0}.home-hero-grid{gap:30px}.home-hero-copy h1{font-size:clamp(2.05rem,11vw,2.75rem)}.home-hero-copy .hero-actions{grid-template-columns:1fr}.home-hero-copy .button{width:100%;min-height:44px}.home-route-map li>a{grid-template-columns:30px minmax(0,1fr) 18px;gap:10px;min-height:82px}.home-route-map>p{padding-left:40px}.home-section-title{grid-template-columns:36px minmax(0,1fr);gap:10px}.home-signal-heading>p,.home-signal-heading>a,.home-curiosity .section-heading>p,.home-paths .section-heading>p,.experiment-ticket>header>p{margin-left:46px}.signal-proof{margin-left:0;padding-left:16px}.signal-proof dl{grid-template-columns:repeat(2,minmax(0,1fr))}.signal-proof dl>div:nth-child(2){border-right:0}.signal-proof dl>div:last-child{border-top:1px solid var(--line);grid-column:1/-1;padding-left:0}.experiment-ticket>*{padding:24px 20px}.path-ledger>a,.path-ledger>a:first-child,.path-ledger>a:last-child{grid-template-columns:28px minmax(0,1fr) 18px}}.home-signal-meta{color:var(--muted);flex-wrap:wrap;gap:7px 14px;margin:0 0 12px 60px;font-size:12px;display:flex}.home-signal-meta>span{align-items:center;gap:5px;min-width:0;display:inline-flex}.home-signal-meta>span:last-child{color:var(--review);flex-basis:100%}.home-signal-links{flex-wrap:wrap;gap:9px 18px;margin-left:60px;display:flex}.home-signal-links a,.trust-method-link{color:var(--cool);align-items:center;gap:5px;font-size:13px;font-weight:750;display:inline-flex}.home-signal-recovery{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.catalog-notice{gap:4px;display:grid}.catalog-notice p{margin:0}.catalog-notice a{color:inherit;text-underline-offset:3px;font-weight:750;text-decoration:underline}.catalog-unavailable{border-block:1px solid var(--line-strong);justify-content:space-between;align-items:center;gap:18px;margin:14px 0 18px;padding:16px 0;display:flex}.catalog-unavailable p{max-width:72ch;color:var(--muted);margin:0}.catalog-unavailable>div{flex-wrap:wrap;gap:8px;display:flex}.engineering-proof{border-top:1px solid var(--line-strong);background:#eaf0ed;padding:58px 0;overflow:hidden}.engineering-proof-grid{grid-template-columns:minmax(280px,.78fr) minmax(0,1.22fr);align-items:start;gap:28px 64px;display:grid}.engineering-proof header h2{letter-spacing:0;max-width:18ch;margin-bottom:14px;font-size:1.85rem}.engineering-proof header>p{color:#4c5751;max-width:56ch}.engineering-proof .text-link{color:var(--safe);align-items:center;gap:5px;font-size:13px;font-weight:750;display:inline-flex}.proof-run-ledger{border-block:1px solid #aebbb4;min-width:0}.proof-command{border-bottom:1px solid #c4cec9;grid-template-columns:24px minmax(0,1fr);align-items:start;gap:10px;padding:16px 0;display:grid}.proof-command svg{color:var(--safe);margin-top:3px}.proof-command span{gap:4px;min-width:0;display:grid}.proof-command small,.proof-run-ledger dt,.proof-run-ledger blockquote small{color:#5c6862;font-size:11px}.proof-command code{overflow-wrap:anywhere;color:#25352e;font-size:13px}.proof-run-ledger dl{margin:0}.proof-run-ledger dl>div{border-bottom:1px solid #c4cec9;grid-template-columns:150px minmax(0,1fr);gap:16px;padding:11px 0;display:grid}.proof-run-ledger dd{color:#25352e;min-width:0;margin:0;font-size:12px}.proof-run-ledger dd span{color:var(--safe);align-items:center;gap:5px;margin:0 14px 4px 0;display:inline-flex}.proof-run-ledger blockquote{color:#25352e;grid-template-columns:24px minmax(0,1fr);gap:10px;margin:0;padding:16px 0;display:grid}.proof-run-ledger blockquote svg{color:var(--safe);margin-top:3px}.proof-run-ledger blockquote span{gap:5px;display:grid}.local-proof-state{border-top:1px solid #aebbb4;grid-column:1/-1;grid-template-columns:28px minmax(0,1fr) max-content;align-items:center;gap:12px;padding:15px 0;display:grid}.local-proof-state.is-passed{color:var(--safe)}.local-proof-state.is-pending{color:#59615d}.local-proof-icon{place-items:center;display:grid}.local-proof-state strong{color:inherit;font-size:14px}.local-proof-state p{color:#5c6862;margin:2px 0 0;font-size:12px}.local-proof-state a{color:var(--safe);align-items:center;gap:5px;font-size:12px;font-weight:750;display:inline-flex}.methodology-hero{padding:66px 0 50px}.methodology-hero-grid{grid-template-columns:minmax(0,1fr) minmax(300px,390px);align-items:end;gap:68px;display:grid}.methodology-hero h1{letter-spacing:0;max-width:18ch;margin-bottom:16px;font-size:2.75rem}.methodology-hero p{max-width:68ch;color:var(--muted)}.methodology-constants{border-block:1px solid var(--line-strong);grid-template-columns:repeat(2,minmax(0,1fr));margin:0;display:grid}.methodology-constants>div{border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-width:0;padding:15px 14px}.methodology-constants>div:nth-child(2n){border-right:0}.methodology-constants>div:nth-last-child(-n+2){border-bottom:0}.methodology-constants dt{min-height:34px;color:var(--muted);font-size:11px;line-height:1.45}.methodology-constants dd{color:var(--heat);margin:4px 0 0;font-size:1.45rem;font-weight:750}.methodology-band{border-block:1px solid var(--line-strong);background:#fffdf87a}.methodology-section{padding-block:52px}.methodology-section>header,.methodology-reading>article{grid-template-columns:28px minmax(0,1fr);align-items:start;gap:12px;display:grid}.methodology-section>header svg,.methodology-reading>article>svg{color:var(--heat);margin-top:4px}.methodology-section h2{letter-spacing:0;margin:0 0 8px;font-size:1.65rem}.methodology-section h3{margin:0 0 5px;font-size:1rem}.methodology-section p{color:var(--muted);margin-bottom:0}.weight-ledger{border-block:1px solid var(--line-strong);grid-template-columns:repeat(5,minmax(0,1fr));margin-top:28px;display:grid}.weight-ledger article{border-right:1px solid var(--line);min-width:0;padding:18px 16px}.weight-ledger article:last-child{border-right:0}.weight-ledger article>strong{color:var(--heat);margin-bottom:18px;font-size:1.55rem;display:block}.weight-ledger article p{font-size:12px;line-height:1.6}.methodology-risk{border-left:2px solid var(--danger);grid-template-columns:28px minmax(0,1fr);gap:12px;margin-top:24px;padding-left:16px;display:grid}.methodology-risk svg{color:var(--danger);margin-top:3px}.methodology-reading{grid-template-columns:repeat(2,minmax(0,1fr));gap:64px;display:grid}.methodology-reading article+article{border-left:1px solid var(--line-strong);padding-left:32px}.methodology-reading article h3{margin-top:20px}.trust-state-ledger{border-top:1px solid var(--line-strong);margin:26px 0 0}.trust-state-ledger>div{border-bottom:1px solid var(--line);grid-template-columns:180px minmax(0,1fr);gap:20px;padding:14px 0;display:grid}.trust-state-ledger dt code{color:var(--cool);font-size:12px;font-weight:750}.trust-state-ledger dd{color:var(--muted);margin:0}.methodology-history{max-width:82ch;margin-top:28px}.detail-trust-strip{color:var(--muted);flex-wrap:wrap;gap:7px 16px;margin-top:12px;font-size:12px;display:flex}.detail-trust-strip>span{align-items:center;gap:5px;display:inline-flex}.detail-trust-strip>a{color:var(--cool);font-weight:750}.detail-api-dependency{border-left:2px solid var(--review);color:#714b08;background:#fff8e8;max-width:90ch;margin:12px 0 0;padding:10px 12px;font-size:12px}.detail-download-error{color:var(--danger);margin:10px 0 0;font-size:12px}.detail-state-actions{flex-wrap:wrap;gap:8px;display:flex}.trust-method-link{margin-top:12px}.site-footer{gap:18px}.site-footer nav{flex-wrap:wrap;justify-content:center;gap:8px 18px;display:flex}.site-footer nav a{color:var(--cool);font-size:12px;font-weight:700}@media (width<=900px){.engineering-proof-grid,.methodology-hero-grid{grid-template-columns:1fr}.engineering-proof header h2,.methodology-hero h1{max-width:24ch}.weight-ledger{grid-template-columns:repeat(2,minmax(0,1fr))}.weight-ledger article{border-bottom:1px solid var(--line)}.weight-ledger article:nth-child(2n){border-right:0}.weight-ledger article:last-child{border-bottom:0;grid-column:1/-1}}@media (width<=680px){.home-signal-meta,.home-signal-links{margin-left:46px}.home-signal-recovery{justify-content:flex-start}.home-signal-recovery .button{flex:150px}.catalog-unavailable,.catalog-unavailable>div{display:grid}.engineering-proof{padding:42px 0}.engineering-proof-grid{gap:24px}.engineering-proof header h2{font-size:1.55rem}.proof-run-ledger dl>div{grid-template-columns:1fr;gap:3px}.local-proof-state{grid-template-columns:28px minmax(0,1fr)}.local-proof-state a{grid-column:2}.methodology-hero{padding:46px 0 38px}.methodology-hero h1{font-size:2rem}.methodology-section{padding-block:40px}.methodology-reading{grid-template-columns:1fr;gap:34px}.methodology-reading article+article{border-top:1px solid var(--line-strong);border-left:0;padding:32px 0 0}.weight-ledger{grid-template-columns:1fr}.weight-ledger article,.weight-ledger article:nth-child(2n),.weight-ledger article:last-child{border-right:0;border-bottom:1px solid var(--line);grid-column:auto}.weight-ledger article:last-child{border-bottom:0}.trust-state-ledger>div{grid-template-columns:1fr;gap:4px}.detail-trust-strip{display:grid}.site-footer nav{justify-content:flex-start}}