:root{--bg: #0f1115;--surface: #171a21;--surface-2: #1f232c;--border: #2b303b;--text: #e6e8ec;--muted: #9aa1ad;--accent: #6ea8fe;--danger: #f0736a;--ok: #6bcf9a;--radius: 10px;color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,sans-serif;font-size:15px;line-height:1.55}a{color:var(--accent)}.shell{display:grid;grid-template-columns:220px 1fr;min-height:100vh}.sidebar{border-right:1px solid var(--border);padding:24px 16px;background:var(--surface)}.brand{font-weight:650;font-size:18px;margin-bottom:4px}.brand-sub{color:var(--muted);font-size:12px;margin-bottom:28px}.nav a{display:block;padding:8px 10px;border-radius:8px;color:var(--text);text-decoration:none;margin-bottom:2px}.nav a:hover{background:var(--surface-2)}.nav a.active{background:var(--surface-2);color:var(--accent)}.main{padding:32px 36px;max-width:940px}.centered{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px}h1{font-size:22px;margin:0 0 6px}h2{font-size:16px;margin:28px 0 10px}.lede{color:var(--muted);margin:0 0 24px}.muted{color:var(--muted)}.small{font-size:13px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin-bottom:14px}.card.narrow{width:100%;max-width:420px}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.between{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.stack{display:flex;flex-direction:column;gap:10px}label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}input,select,textarea{width:100%;padding:9px 11px;border-radius:8px;border:1px solid var(--border);background:var(--bg);color:var(--text);font:inherit}input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:-1px}button{padding:9px 14px;border-radius:8px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);font:inherit;cursor:pointer}button:hover:not(:disabled){border-color:var(--accent)}button:disabled{opacity:.5;cursor:not-allowed}button.primary{background:var(--accent);border-color:var(--accent);color:#0b1220;font-weight:600}button.danger{color:var(--danger);border-color:transparent;background:transparent}button.danger:hover:not(:disabled){border-color:var(--danger)}button.link{background:none;border:none;color:var(--accent);padding:0;text-decoration:underline}.tag{display:inline-block;padding:2px 8px;border-radius:999px;background:var(--surface-2);border:1px solid var(--border);font-size:12px;color:var(--muted)}.tag.scope{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 40%,transparent)}.tag.revoked{color:var(--danger);border-color:color-mix(in srgb,var(--danger) 40%,transparent)}.tag.ok{color:var(--ok);border-color:color-mix(in srgb,var(--ok) 40%,transparent)}.tag.locked{color:var(--ok);border-color:color-mix(in srgb,var(--ok) 45%,transparent)}button.small{padding:4px 9px;font-size:12px}.error{color:var(--danger);font-size:13px}.notice{border-left:3px solid var(--accent);padding:10px 14px;background:var(--surface-2);border-radius:0 8px 8px 0;margin-bottom:16px;font-size:14px}.secret{font-family:ui-monospace,Cascadia Code,Consolas,monospace;font-size:12px;word-break:break-all;background:var(--bg);padding:8px 10px;border-radius:6px;border:1px solid var(--border)}table{width:100%;border-collapse:collapse;font-size:14px}th{text-align:left;color:var(--muted);font-weight:500;font-size:12px;padding:6px 10px 6px 0;border-bottom:1px solid var(--border)}td{padding:8px 10px 8px 0;border-bottom:1px solid var(--border);vertical-align:top}ul.plain{list-style:none;padding:0;margin:0}ul.plain li{padding:10px 0;border-bottom:1px solid var(--border)}ul.plain li:last-child{border-bottom:none}.checkbox-row{display:flex;align-items:flex-start;gap:10px;padding:8px 0}.checkbox-row input{width:auto;margin-top:3px}.checkbox-row label{margin:0;color:var(--text);font-size:14px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-bottom:22px}.stat{display:block;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;text-decoration:none;color:inherit}.stat:hover{border-color:var(--accent)}.stat.highlight{border-color:color-mix(in srgb,var(--accent) 55%,transparent)}.stat-value{font-size:26px;font-weight:650;line-height:1.1}.stat-label{color:var(--muted);font-size:13px;margin-top:2px}.stat-hint{color:var(--accent);font-size:12px;margin-top:4px}.step-badge{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:999px;border:1px solid var(--border);color:var(--muted);font-size:12px;font-weight:600;margin-right:9px;vertical-align:1px}.step-badge.done{border-color:var(--ok);color:var(--ok)}.split{display:grid;grid-template-columns:260px 1fr;gap:14px;align-items:start}@media(max-width:820px){.shell,.split{grid-template-columns:1fr}}.result-block{font-family:ui-monospace,Cascadia Code,Consolas,monospace;font-size:12px;line-height:1.5;white-space:pre-wrap;word-break:break-word;background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:12px;max-height:340px;overflow:auto}.hit{border-left:2px solid var(--border);padding:8px 0 8px 12px;margin-bottom:10px}.hit:last-child{margin-bottom:0}.score{font-family:ui-monospace,Consolas,monospace;font-size:11px;color:var(--muted)}.tabs{display:flex;gap:4px;border-bottom:1px solid var(--border);margin-bottom:14px}.tabs button{background:none;border:none;border-bottom:2px solid transparent;border-radius:0;color:var(--muted);padding:8px 12px}.tabs button.active{color:var(--text);border-bottom-color:var(--accent)}.nav-group{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.04em;margin:18px 0 6px 10px}.tour{position:fixed;right:24px;bottom:24px;width:380px;max-width:calc(100vw - 32px);max-height:calc(100vh - 48px);overflow:auto;background:var(--surface);border:1px solid var(--accent);border-radius:12px;padding:18px;box-shadow:0 18px 48px #0000008c;z-index:50}.tour-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.tour-progress{display:flex;gap:4px;margin:10px 0 12px}.tour-dot{height:3px;flex:1;border-radius:2px;background:var(--border)}.tour-dot.filled{background:var(--accent)}.tour-title{font-size:16px;margin:0 0 8px}.tour-body p{margin:0 0 10px;font-size:14px;line-height:1.55}.tour-body p:last-child{margin-bottom:0}.tour-body code{font-size:12px;background:var(--bg);padding:1px 5px;border-radius:4px}.tour-try{margin-top:12px;padding:10px 12px;border-left:3px solid var(--ok);background:var(--surface-2);border-radius:0 8px 8px 0;font-size:13px}.explain{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);margin-bottom:18px}.explain>summary{cursor:pointer;padding:11px 16px;font-size:14px;color:var(--accent);list-style:none}.explain>summary::-webkit-details-marker{display:none}.explain>summary:before{content:"▸";display:inline-block;margin-right:8px;transition:transform .15s}.explain[open]>summary:before{transform:rotate(90deg)}.explain-body{padding:0 16px 14px;font-size:14px;line-height:1.6}.explain-body p{margin:0 0 10px}.explain-body p:last-child{margin-bottom:0}.explain-body dl{margin:0}.explain-body dt{font-weight:600;margin-top:10px}.explain-body dd{margin:2px 0 0;color:var(--muted)}.manual h2{margin-top:34px;padding-bottom:6px;border-bottom:1px solid var(--border)}.manual h3{font-size:15px;margin:22px 0 6px}.manual p,.manual li{line-height:1.65}.manual ul,.manual ol{padding-left:20px}.manual li{margin-bottom:6px}.term{border-left:2px solid var(--accent);padding:2px 0 2px 14px;margin:16px 0}.term-name{font-weight:650}.term-where{font-size:13px;color:var(--muted);margin-top:4px}.toc{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}.toc a{font-size:13px;padding:4px 10px;border:1px solid var(--border);border-radius:999px;text-decoration:none}.toc a:hover{border-color:var(--accent)}