:root{--bg:#0e1116;--panel:#161b22;--panel-2:#1c232c;--line:#2a313b;--text:#e6edf3;--muted:#8b949e;--accent:#e8513a;--good:#3fb950;--warn:#d29922;--bad:#f85149;--draft:#a371f7;--radius:8px;--mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,monospace}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.55 -apple-system,BlinkMacSystemFont,Segoe UI,Inter,sans-serif}a{color:#6cb6ff;text-decoration:none}a:hover{text-decoration:underline}.layout{display:grid;grid-template-columns:220px 1fr;min-height:100vh}.sidebar{background:var(--panel);border-right:1px solid var(--line);padding:20px 14px}.sidebar h1{font-size:18px;margin:0 0 4px;letter-spacing:-.01em}.sidebar .sub{color:var(--muted);font-size:12px;margin-bottom:20px}.sidebar nav a{display:block;padding:7px 10px;border-radius:6px;color:var(--text);font-size:14px}.sidebar nav a:hover{background:var(--panel-2);text-decoration:none}.sidebar nav .group{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.06em;margin:18px 0 6px 10px}.sidebar .who{margin-top:24px;padding-top:16px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}main{padding:28px 34px 80px;max-width:1100px}h2{font-size:22px;margin:0 0 6px;letter-spacing:-.015em}h3{font-size:16px;margin:28px 0 10px}.lede{color:var(--muted);margin:0 0 24px;max-width:70ch}.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin-bottom:18px}.panel.tight{padding:14px 16px}.grid{display:grid;grid-gap:14px;gap:14px}.grid.cols-2{grid-template-columns:repeat(2,1fr)}.grid.cols-3{grid-template-columns:repeat(3,1fr)}.grid.cols-4{grid-template-columns:repeat(4,1fr)}.stat .label{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.05em}.stat .value{font-size:26px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;margin-top:4px}.stat .note{color:var(--muted);font-size:12px;margin-top:4px}table{width:100%;border-collapse:collapse;font-size:14px}th{text-align:left;color:var(--muted);font-weight:500;font-size:12px;text-transform:uppercase;letter-spacing:.05em;padding:8px 10px}td,th{border-bottom:1px solid var(--line)}td{padding:10px;vertical-align:top}tr:last-child td{border-bottom:none}td.num,th.num{text-align:right;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.mono{font-family:var(--mono);font-size:12.5px}.tag{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11.5px;border:1px solid var(--line);color:var(--muted)}.tag.published{color:var(--good);border-color:color-mix(in srgb,var(--good) 40%,transparent)}.tag.draft{color:var(--draft);border-color:color-mix(in srgb,var(--draft) 40%,transparent)}.tag.retired,.tag.superseded{color:var(--muted)}.tag.warn{color:var(--warn);border-color:color-mix(in srgb,var(--warn) 40%,transparent)}.tag.bad{color:var(--bad);border-color:color-mix(in srgb,var(--bad) 40%,transparent)}.tag.good{color:var(--good);border-color:color-mix(in srgb,var(--good) 40%,transparent)}.banner{border-radius:var(--radius);padding:12px 16px;margin-bottom:18px;border:1px solid;font-size:14px}.banner.draft{background:color-mix(in srgb,var(--draft) 12%,transparent);border-color:var(--draft);color:#e4d4ff;font-weight:600;letter-spacing:.02em}.banner.amber{background:color-mix(in srgb,var(--warn) 12%,transparent);border-color:var(--warn);color:#f5e2b5}.banner.bad{background:color-mix(in srgb,var(--bad) 12%,transparent);border-color:var(--bad);color:#ffd3cf}.banner.info{background:var(--panel-2);border-color:var(--line);color:var(--muted)}label{display:block;font-size:13px;color:var(--muted);margin:14px 0 5px}label .req{color:var(--accent)}input[type=date],input[type=datetime-local],input[type=number],input[type=text],select,textarea{width:100%;padding:9px 11px;background:var(--bg);border:1px solid var(--line);border-radius:6px;color:var(--text);font:inherit}textarea{min-height:76px;resize:vertical}input:focus,select:focus,textarea:focus{outline:2px solid #1f6feb;outline-offset:-1px}.hint{color:var(--muted);font-size:12px;margin-top:5px}.button,button{display:inline-block;padding:9px 16px;border-radius:6px;border:1px solid var(--line);background:var(--panel-2);color:var(--text);font:inherit;cursor:pointer}.button:hover,button:hover{background:#242c37;text-decoration:none}button.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}button.primary:hover{background:#d9462f}button.danger{background:var(--bad);border-color:var(--bad);color:#fff;font-weight:600}button:disabled{opacity:.5;cursor:not-allowed}.option-cards{display:grid;grid-gap:12px;gap:12px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.option-card{display:block;background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius);padding:16px;cursor:pointer}.option-card:hover{border-color:#3d4char}.option-card .name{font-weight:600;margin-bottom:6px}.option-card .price{font-size:20px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.option-card .detail{color:var(--muted);font-size:12.5px;margin-top:8px}.derivation{font-family:var(--mono);font-size:13px;background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:12px}.derivation div{padding:3px 0}.derivation .total{border-top:1px solid var(--line);margin-top:8px;padding-top:8px;font-weight:600}pre.diff{font-family:var(--mono);font-size:12.5px;background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:12px;overflow-x:auto;margin:0}pre.diff .added{color:var(--good)}pre.diff .removed{color:var(--bad)}pre.diff .changed{color:var(--warn)}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.row.between{justify-content:space-between}.spacer{flex:1 1}.muted{color:var(--muted)}.small{font-size:12.5px}.nowrap{white-space:nowrap}.empty{color:var(--muted);padding:24px;text-align:center;font-size:14px}