:root{color-scheme:light dark;--bg:#f4f3ee;--surface:#fffef9;--text:#202d2b;--muted:#586560;--line:#ccd4cd;--accent:#235946;--selected:#e3eee5}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:17px/1.65 system-ui,sans-serif}main{max-width:1080px;margin:64px auto;padding:0 28px}.caption{font-size:12px;letter-spacing:.1em;font-weight:700;color:var(--accent);display:flex;justify-content:space-between;gap:20px;margin-bottom:24px}.caption span{letter-spacing:0;font-weight:400;color:var(--muted)}.workspace{display:grid;grid-template-columns:290px 1fr;min-height:460px;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--surface)}nav{padding:20px;border-right:1px solid var(--line);background:var(--bg)}button{font:inherit;cursor:pointer;background:transparent;color:var(--text);border:1px solid transparent;border-radius:10px;text-align:left;padding:14px;width:100%;margin-bottom:6px}button[aria-current=true]{background:var(--selected);border-color:var(--line);color:var(--accent);font-weight:650}button:hover{border-color:var(--accent)}button:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:3px}article{padding:38px 42px}h1{font-size:clamp(25px,3vw,34px);line-height:1.25;margin:0 0 24px;letter-spacing:-.025em}p{margin:0 0 24px}a{color:var(--accent);text-underline-offset:4px}.source{font-size:14px;display:block;margin:0 0 26px}.extra{border-top:1px solid var(--line);padding-top:24px;color:var(--muted);font-size:15px}.extra p{margin-bottom:14px}@media(prefers-color-scheme:dark){:root{--bg:#17211e;--surface:#202d28;--text:#edf3ed;--muted:#bdccc2;--line:#465c50;--accent:#a6dfbb;--selected:#30493b}}@media(max-width:700px){main{margin:24px auto;padding:0 16px}.caption{display:block}.caption span{display:block;margin-top:8px}.workspace{grid-template-columns:1fr}nav{border-right:0;border-bottom:1px solid var(--line);padding:12px;display:flex;gap:8px;overflow-x:auto}button{flex:0 0 175px;margin:0;font-size:14px;padding:10px}article{padding:28px 24px}}
.controls{display:flex;align-items:end;flex-wrap:wrap;gap:12px}.controls label{font-size:13px;color:var(--muted)}select{display:block;font:inherit;font-size:16px;background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:10px;max-width:240px}.controls button{width:auto;margin:0;border-color:var(--line);padding:9px 15px;background:var(--surface)}.controls button:disabled{color:var(--muted);cursor:wait}.controls select:focus-visible{outline:3px solid var(--accent)}#status{font-size:14px;color:var(--muted);margin:20px 0}.message{padding:22px 0;border-top:1px solid var(--line)}.message-head{display:flex;justify-content:space-between;gap:15px}.message-head time,.room{color:var(--muted);font-size:13px}.message-text{white-space:pre-wrap;overflow-wrap:anywhere;margin:12px 0 0}.reader-source{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:20px}@media(max-width:700px){.message-head{display:block}.message-head time{display:block}.controls select{max-width:180px}.controls button{flex:unset}article.message{padding:20px 0}}