:root{color-scheme:light;--black:#000;--white:#fff;--orange:#ff7900;--orange-hover:#f16e00;--orange-soft:#fff0e0;--blue:#527edb;--green:#32c832;--yellow:#ffd200;--red:#cd3c14;--bg:#f6f6f6;--surface:#fff;--surface-raised:#fff;--surface-muted:#eee;--surface-strong:#111;--line:#d8d8d8;--line-strong:#8f8f8f;--text:#111;--muted:#555;--dim:#777;--inverse:#fff;--shadow:#00000029;--focus:0 0 0 3px #ff790061;--mono:"SFMono-Regular", "Cascadia Code", "Liberation Mono", Menlo, Consolas, monospace;--sans:"Helvetica Neue", Helvetica, Arial, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}*{box-sizing:border-box}html{background:var(--bg);min-width:320px;font-family:var(--sans);scroll-behavior:smooth}body{color:var(--text);background:var(--bg);margin:0}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,summary,input{outline-offset:2px}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible{box-shadow:var(--focus);outline:0}.skip-link{z-index:100;color:var(--inverse);background:var(--black);border:2px solid var(--orange);padding:10px 14px;font-weight:700;position:fixed;top:8px;left:8px;transform:translateY(-140%)}.skip-link:focus{transform:translateY(0)}.app-shell{grid-template-columns:326px minmax(0,1fr);min-height:100vh;display:grid}.sidebar{height:100vh;color:var(--inverse);background:var(--black);border-right:4px solid var(--orange);box-shadow:12px 0 34px var(--shadow);flex-direction:column;gap:18px;padding:18px;display:flex;position:sticky;top:0;overflow:auto}.brand{border-bottom:1px solid #333;align-items:center;min-height:60px;padding-bottom:16px;display:flex}.brand strong,.brand small,.eyebrow,kbd{font-family:var(--mono)}.brand strong{color:var(--white);font-size:19px;line-height:1.1;display:block}.brand small{color:#ccc;font-size:12px}.search-trigger{width:100%;min-height:44px;color:var(--inverse);cursor:pointer;background:#1f1f1f;border:1px solid #555;border-radius:4px;justify-content:space-between;align-items:center;padding:0 12px;display:flex}.search-trigger:hover,.search-trigger:focus-visible{color:var(--black);background:var(--orange);border-color:var(--orange)}kbd{min-width:26px;color:var(--black);background:var(--white);text-align:center;border:1px solid #bdbdbd;border-radius:3px;padding:2px 6px;font-size:12px;font-weight:700}.sidebar-nav{flex:1}.nav-level{margin:0;padding:0;list-style:none}.nav-level .nav-level{border-left:1px solid #444;margin:5px 0 5px 12px;padding-left:10px}.nav-level a,.nav-level summary{color:#d6d6d6;border-radius:4px;justify-content:space-between;align-items:center;gap:10px;min-height:34px;padding:6px 8px;font-size:14px;line-height:1.25;display:flex}.nav-level summary{cursor:pointer;list-style:none}.nav-level summary::-webkit-details-marker{display:none}.nav-level summary:before{content:">";color:#999;font-family:var(--mono);flex:none;font-size:11px;transition:transform .12s,color .12s;transform:rotate(0)}.nav-level details[open]>summary:before{color:var(--orange);transform:rotate(90deg)}.nav-level summary span{flex:1;min-width:0}.nav-level-1 a,.nav-level-1 summary{font-size:13px}.nav-level-2 a,.nav-level-2 summary{font-size:12px}.nav-level a:hover,.nav-level summary:hover,.nav-level .is-active>a,.nav-level .is-active>details>summary,.nav-overview.is-current{color:var(--white);background:#262626}.nav-level .is-active>a,.nav-level .is-active>details>summary,.nav-overview.is-current{box-shadow:inset 4px 0 0 var(--orange)}.nav-level small{color:#a0a0a0;font-family:var(--mono);font-size:11px}.nav-overview{font-family:var(--mono);margin:3px 0 3px 21px;color:#bdbdbd!important;min-height:28px!important;font-size:11px!important}.nav-overview:hover,.nav-overview.is-current{color:var(--orange)!important}.sidebar-tags,.tag-row{flex-wrap:wrap;gap:7px;display:flex}.sidebar-tags a,.tag-row a{color:var(--black);background:var(--orange);border:1px solid var(--orange);font-family:var(--mono);border-radius:4px;padding:4px 8px;font-size:11px;font-weight:700}.tag-row a{color:var(--black);background:var(--orange-soft);border-color:var(--orange)}.sidebar-tags a:hover,.tag-row a:hover{color:var(--black);background:var(--white);border-color:var(--white)}.tag-row a:hover{background:var(--orange);border-color:var(--orange)}.sidebar-footer{color:#ccc;font-family:var(--mono);border-top:1px solid #333;flex-direction:column;gap:6px;padding-top:14px;font-size:11px;line-height:1.35;display:flex}.sidebar-footer p{margin:0}.footer-links{color:var(--white);justify-content:space-between;gap:12px;margin-bottom:4px;font-size:12px;display:flex}.footer-credit,.footer-copyright{color:#a0a0a0}.footer-credit a{color:var(--white)}.main-column{min-width:0}.topbar{z-index:20;min-height:58px;color:var(--inverse);background:var(--black);border-bottom:4px solid var(--orange);grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:14px;padding:0 30px;display:grid;position:sticky;top:0}.icon-button{cursor:pointer;background:#1f1f1f;border:1px solid #555;border-radius:4px;width:40px;height:40px;padding:9px;display:none}.icon-button:hover{background:var(--orange);border-color:var(--orange)}.icon-button span{background:var(--white);height:2px;margin:4px 0;display:block}.icon-button:hover span{background:var(--black)}.crumbs{color:#ccc;min-width:0;font-family:var(--mono);white-space:nowrap;align-items:center;gap:8px;font-size:12px;display:flex;overflow:hidden}.crumbs a{text-overflow:ellipsis;overflow:hidden}.crumbs a:hover,.topbar-link:hover,.sidebar-footer a:hover{color:var(--orange)}.topbar-link{color:#ccc;font-family:var(--mono);font-size:12px;font-weight:700}.page-frame{width:min(100%,1120px);margin:0 auto;padding:48px 34px 90px}.page-header{border-bottom:1px solid var(--line);margin-bottom:30px;padding-bottom:26px}.eyebrow{color:var(--black);background:var(--orange);border-radius:4px;margin-bottom:12px;padding:4px 8px;font-size:12px;font-weight:700;display:inline-flex}h1{max-width:900px;color:var(--text);letter-spacing:0;margin:0;font-size:clamp(34px,5vw,64px);line-height:1}.page-header p{max-width:760px;color:var(--muted);margin:16px 0 0;font-size:18px;line-height:1.55}.tag-row{margin-top:18px}.home-grid,.listing-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin-bottom:36px;display:grid}.section-tile,.listing-item{min-height:118px;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:18px;transition:border-color .12s,box-shadow .12s,transform .12s;display:block;box-shadow:0 2px 8px #0000000a}.section-tile:hover,.listing-item:hover{border-color:var(--orange);transform:translateY(-1px);box-shadow:0 8px 24px #00000014}.section-tile span,.listing-item span{color:var(--text);font-weight:700;display:block}.section-tile strong{color:var(--orange-hover);font-family:var(--mono);font-variant-numeric:tabular-nums;margin-top:14px;font-size:34px;transition:color .18s;display:block}.section-tile strong.is-counting,.section-tile strong.is-counted{color:var(--orange-hover)}.section-tile p,.listing-item p,.listing-item small{color:var(--muted);margin:10px 0 0;line-height:1.45;display:block}.prose{color:var(--text);font-size:16px;line-height:1.7}.prose>:first-child{margin-top:0}.prose h2,.prose h3,.prose h4{color:var(--text);letter-spacing:0;line-height:1.2}.prose h2{border-top:2px solid var(--black);margin:44px 0 16px;padding-top:14px;font-size:28px}.prose h3{border-left:4px solid var(--orange);margin:32px 0 12px;padding-left:10px;font-size:21px}.prose h4{color:var(--muted);margin:24px 0 10px;font-size:17px}.prose p,.prose ul,.prose ol,.prose table,.prose pre{margin-top:0;margin-bottom:18px}.prose a{color:var(--black);border-bottom:2px solid var(--orange);font-weight:700}.prose a:hover{color:var(--orange-hover);border-bottom-color:var(--orange-hover)}.prose img{background:var(--surface);border:1px solid var(--line);border-radius:6px;max-width:100%;height:auto;margin:22px 0;display:block}.prose code{color:var(--black);background:var(--orange-soft);font-family:var(--mono);border:1px solid #ffd1a3;border-radius:3px;padding:2px 5px;font-size:.9em}.prose pre{color:var(--inverse);background:var(--black);border:1px solid var(--black);border-radius:6px;padding:18px;position:relative;overflow:auto}.prose pre code{color:var(--inverse);background:0 0;border:0;padding:0}.copy-code{color:var(--black);background:var(--orange);border:1px solid var(--orange);cursor:pointer;font-family:var(--mono);border-radius:4px;padding:5px 8px;font-size:11px;font-weight:700;position:absolute;top:8px;right:8px}.copy-code:hover{background:var(--white);border-color:var(--white)}.prose table{border-collapse:collapse;width:100%;display:block;overflow:auto}.prose th,.prose td{border:1px solid var(--line);vertical-align:top;padding:10px 12px}.prose th{color:var(--inverse);background:var(--black);text-align:left}.prose tr:nth-child(2n) td{background:#fafafa}.children-list{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;padding-left:0;list-style:none;display:grid}.children-list li{margin:0}.children-list a,.resources{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:16px;display:block}.children-list a:hover{border-color:var(--orange)}.children-list a span{color:var(--text);font-weight:700;display:block}.children-list a p{color:var(--muted);margin:8px 0 0;font-size:14px}.resources h2{border:0;margin-top:0}.resources ul{padding-left:0;list-style:none}.resources li{border-top:1px solid var(--line);justify-content:space-between;gap:12px;padding:9px 0;display:flex}.resources span{color:var(--dim);font-family:var(--mono);font-size:12px}.notice{border-left:5px solid var(--yellow);background:#fff9d6;margin:20px 0;padding:15px 18px}.notice-warning{border-left-color:var(--red);background:#fff0ec}.notice-info{border-left-color:var(--blue);background:#eef3ff}.video-embed{aspect-ratio:16/9;margin:24px 0;position:relative}.video-embed iframe{border:1px solid var(--line);border-radius:6px;width:100%;height:100%}.search-dialog{width:min(720px,100vw - 30px);color:var(--text);background:var(--surface);border:1px solid var(--black);box-shadow:0 24px 90px var(--shadow);border-radius:6px;padding:0}.search-dialog::backdrop{background:#000000b8}.search-dialog form{position:absolute;top:10px;right:10px}.search-dialog form button{width:32px;height:32px;color:var(--inverse);background:var(--black);border:1px solid var(--black);cursor:pointer;font-family:var(--mono);border-radius:4px;font-weight:700}.search-dialog form button:hover{color:var(--black);background:var(--orange);border-color:var(--orange)}.search-dialog label{border-bottom:1px solid var(--line);padding:22px;display:block}.search-dialog label span{color:var(--orange-hover);font-family:var(--mono);margin-bottom:8px;font-size:12px;font-weight:700;display:block}.search-dialog input{width:100%;color:var(--text);font-family:var(--mono);background:0 0;border:0;outline:0;font-size:22px}.search-results{max-height:min(520px,70vh);overflow:auto}.search-results a{border-bottom:1px solid var(--line);padding:14px 22px;display:block}.search-results a:hover,.search-results a.is-active{background:var(--orange-soft)}.search-results strong{color:var(--text);display:block}.search-results p{color:var(--muted);margin:6px 0 0;font-size:14px}.search-results mark{color:var(--black);background:var(--orange);border-radius:2px;padding:0 2px}.search-status{color:var(--muted);font-family:var(--mono);padding:18px 22px;font-size:13px}@media (width<=940px){.app-shell{display:block}.sidebar{z-index:40;width:min(326px,88vw);transition:transform .16s;position:fixed;transform:translate(-105%)}body.sidebar-open .sidebar{transform:translate(0)}.icon-button{display:block}.topbar{grid-template-columns:auto minmax(0,1fr) auto;padding:0 14px}.page-frame{padding:34px 18px 70px}h1{font-size:40px}}@media (width<=560px){.home-grid,.listing-grid,.children-list{grid-template-columns:1fr}.topbar-link{display:none}.crumbs{font-size:11px}}