.spec-viewer{padding-top:70px;padding-bottom:90px}.spec-header{border-bottom:1px solid var(--line);padding-bottom:55px}.spec-title{letter-spacing:-.035em;margin:20px 0;font-size:clamp(30px,4.5vw,64px);font-weight:600;line-height:1.3}.spec-header>p:not(.spec-title):not(.eyebrow){max-width:950px;color:var(--body-copy);line-height:1.9}.spec-metadata{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 35px;margin:35px 0;display:grid}.spec-metadata div{border-bottom:1px solid var(--line);min-width:0;padding-bottom:15px}.spec-metadata dt{color:var(--accent);font:11px DM Mono}.spec-metadata dd{overflow-wrap:anywhere;margin:9px 0 0;font-size:16px;line-height:1.65}.spec-links{flex-wrap:wrap;gap:15px 30px;display:flex}.spec-layout{grid-template-columns:250px minmax(0,1fr);gap:50px;padding-top:55px;display:grid}.spec-sidebar{align-self:start;min-width:0;position:sticky;top:25px}.spec-toc{border:1px solid var(--line);background:#111815}.spec-toc summary{cursor:pointer;justify-content:space-between;gap:10px;padding:20px;font-weight:600;display:flex}.spec-current{color:var(--accent);font:11px DM Mono}.spec-toc nav{background:0 0;flex-direction:column;align-items:stretch;gap:4px;max-height:calc(100dvh - 155px);padding:8px 12px 20px;display:flex;position:static;inset:auto;overflow:auto}.spec-toc a{color:var(--body-copy);border-left:3px solid #0000;padding:10px 9px;font:500 13px/1.8 Noto Sans JP,Noto Sans KR,sans-serif}.spec-toc a.active{color:var(--accent);border-left-color:var(--accent);background:#1a2c23;font-weight:700}.spec-content{min-width:0;max-width:1000px;color:var(--text);font-size:17px;line-height:1.95}.spec-content h1{margin:0 0 40px;font-size:30px;line-height:1.5}.spec-content h2{border-bottom:1px solid var(--line);margin:65px 0 25px;padding-bottom:15px;scroll-margin-top:30px;font-size:clamp(25px,3vw,35px);line-height:1.5}.spec-content h3{margin:40px 0 20px;scroll-margin-top:30px;font-size:23px;line-height:1.6}.spec-content h4{font-size:20px}.spec-content p{margin:20px 0}.spec-content li{padding:5px 0}.spec-content ol,.spec-content ul{padding-left:26px}.spec-content a{color:var(--accent);text-underline-offset:4px;overflow-wrap:anywhere;text-decoration:underline}.spec-content code{overflow-wrap:anywhere;background:#18251e;border-radius:3px;padding:3px 5px;font:500 14px/1.8 DM Mono,monospace}.spec-content pre{border:1px solid var(--line);background:#111815;padding:22px;overflow:auto}.spec-content pre code{white-space:pre;background:0 0;padding:0;font-size:13px}.spec-content blockquote{border-left:3px solid var(--accent);background:#111815;margin:25px 0;padding:10px 25px}.spec-content hr{border:0;border-top:1px solid var(--line);margin:45px 0}.spec-table-scroll{border:1px solid var(--line);width:100%;margin:25px 0;overflow:auto}.spec-content table{border-collapse:collapse;width:100%;min-width:600px;font-size:15px;line-height:1.85}.spec-content th,.spec-content td{border:1px solid var(--line);vertical-align:top;min-width:130px;padding:15px 18px}.spec-content th{text-align:left;color:var(--accent);background:#1d3027;font-weight:600}.spec-content td{background:#101714}.spec-content>p>img{border:1px solid var(--line);max-width:100%;height:auto;margin:30px auto;display:block}.spec-diagram{border:1px solid var(--line);background:#121c17;margin:35px 0}.spec-diagram figcaption{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:15px;padding:20px;display:flex}.spec-diagram figcaption b{color:var(--accent);font-size:15px}.spec-zoom-open,.spec-modal-toolbar button{color:var(--text);cursor:pointer;background:#1b3026;border:1px solid #547565;min-height:44px;padding:10px 14px;font:500 13px/1.5 Noto Sans JP,Noto Sans KR,sans-serif}.diagram-scroll{background:#f6f8fa;max-height:570px;padding:20px;overflow:auto}.diagram-scroll img{width:auto;min-width:650px;max-width:none;height:auto;display:block}.mermaid-source{border-top:1px solid var(--line);padding:15px 20px}.mermaid-source summary{cursor:pointer;color:var(--accent);font-size:14px}.mermaid-source pre{max-height:350px}.spec-reference-note{border:1px solid var(--line);background:#111815;margin-top:50px;padding:25px}.spec-reference-note h2{margin-top:0;font-size:25px}.spec-bottom{margin-top:40px}#spec-diagram-modal{width:min(1250px,96vw);height:90dvh;max-height:90dvh;color:var(--text);background:#111815;border:1px solid #648674;padding:18px}#spec-diagram-modal::backdrop{background:#000c}.spec-modal-toolbar{flex-wrap:wrap;align-items:center;gap:8px;padding-bottom:15px;display:flex}.spec-modal-toolbar>b{margin-right:auto;font-size:14px}.spec-modal-stage{background:#f6f8fa;height:calc(100% - 115px);padding:15px;overflow:auto}.spec-modal-stage img{max-width:none;height:auto;display:block}.spec-modal-help{font-size:13px;line-height:1.8}.spec-viewer [tabindex]:focus-visible,.spec-viewer button:focus-visible,#spec-diagram-modal button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}@media (width<=1100px){.spec-layout{grid-template-columns:220px minmax(0,1fr);gap:30px}}@media (width<=900px){.spec-layout{grid-template-columns:1fr;gap:30px}.spec-sidebar{position:static}.spec-toc nav{max-height:340px}.spec-content{width:100%;max-width:none}.spec-title{font-size:36px}.spec-viewer{padding-top:45px}.spec-metadata{grid-template-columns:1fr}.spec-content h1{font-size:26px}.spec-toc:not([open]) nav{display:none}}@media (width<=560px){.spec-title{font-size:30px}.spec-content{font-size:16px}.spec-content h2{font-size:25px}.spec-content h3{font-size:21px}.spec-content table{font-size:14px}.spec-content th,.spec-content td{padding:12px 14px}.spec-header{padding-bottom:35px}.spec-layout{padding-top:30px}.spec-diagram figcaption{padding:16px}.diagram-scroll{max-height:420px;padding:15px}.spec-modal-toolbar>b{width:100%}.spec-modal-toolbar button{padding:8px 11px}.spec-modal-stage{height:calc(100% - 145px)}.spec-content ol,.spec-content ul{padding-left:22px}.spec-reference-note{padding:20px}.spec-content h2{scroll-margin-top:18px}}.diagram-scroll{height:540px}.spec-modal-stage:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.spec-metadata dt{font-size:13px;line-height:1.6}.spec-metadata dd{font-size:18px;line-height:1.7}.spec-header>p:not(.spec-title):not(.eyebrow){font-size:18px}.spec-metadata div:last-child dd{overflow-wrap:anywhere;font-family:DM Mono,monospace;font-size:15px}.spec-scroll-hint{color:var(--accent);font-size:14px;font-weight:600;line-height:1.7;margin:20px 0 8px!important}.spec-scroll-hint[hidden]{display:none}.spec-scroll-hint:not([hidden])+.spec-table-scroll{margin-top:0}.spec-zoom-open{border-color:var(--accent);align-items:center;gap:8px;font-size:15px;font-weight:600;display:inline-flex}.spec-diagram-help{color:var(--body-copy);padding:0 20px;font-size:15px;line-height:1.8;margin:0 0 18px!important}@media (width<=560px){.spec-metadata{gap:16px;margin:25px 0}.spec-metadata dt{font-size:12px}.spec-metadata dd{margin-top:6px;font-size:16px}.spec-header>p:not(.spec-title):not(.eyebrow){font-size:16px}.spec-diagram-help{padding:0 16px;font-size:14px}.diagram-scroll{height:360px}}