:root{--canvas:#f5f5fa;--surface:#fff;--text:#1a1a2e;--body:#3a3a52;--border:#c8c8d8;--accent:#9a5c00;--error:#b91c1c}*{box-sizing:border-box}body{margin:0;background:var(--canvas);color:var(--text);font:16px/1.55 system-ui,sans-serif}header{padding:20px 4vw;display:flex;gap:18px;justify-content:space-between;background:var(--surface);border-bottom:1px solid var(--border)}a{color:inherit}main{padding:32px 4vw;max-width:1600px;margin:auto}.eyebrow{font-size:12px;letter-spacing:.1em;color:var(--accent);font-weight:700}h1{font-size:clamp(30px,4vw,52px);line-height:1.1;max-width:22ch}h2{font-size:21px}p{color:var(--body)}.workspace{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,1fr);gap:32px}.workspace>*{min-width:0}#pages img{display:block;width:100%;height:auto;border:1px solid var(--border);margin-bottom:24px;background:#fff}aside{background:var(--surface);border:1px solid var(--border);padding:24px;align-self:start}pre,code{white-space:pre-wrap;overflow-wrap:anywhere;font:13px/1.6 ui-monospace,monospace}pre{background:var(--canvas);padding:14px}details{border-bottom:1px solid var(--border);padding:12px 0}summary,button{cursor:pointer}label{display:block;margin:18px 0}input:not([type=checkbox]){width:100%;padding:12px;border:1px solid var(--border);font:inherit}.check{display:flex;gap:10px;align-items:start}input[type=checkbox]{margin-top:6px;flex:none}button{padding:13px 16px;background:var(--text);color:var(--surface);border:1px solid var(--text);font:600 15px system-ui;min-height:46px;width:100%;margin:8px 0}button:disabled{opacity:.5;cursor:not-allowed}:focus-visible{outline:3px solid var(--accent);outline-offset:3px}#error{color:var(--error)}#hash{display:block}#state{font-weight:600;font-size:14px}form{border-top:2px solid var(--accent);margin-top:24px}@media(max-width:760px){.workspace{grid-template-columns:1fr}main{padding:24px 18px}header{flex-direction:column;padding:18px}aside{padding:18px}}