:root{color-scheme:dark;--ink:#f3f5f7;--muted:#94a0ad;--line:#27313b;--panel:#151b22;--panel-2:#1a222b;--mint:#66e3b4;--amber:#ffca6a;--danger:#ff8d8d}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 75% 5%,rgba(102,227,180,.09),transparent 26rem),#0d1117;color:var(--ink);font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace}button,input,textarea{font:inherit}.shell{width:min(860px,calc(100% - 32px));margin:0 auto;padding:48px 0 32px}.room-header{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:22px}.eyebrow{margin:0 0 8px;color:var(--mint);font-size:.78rem;letter-spacing:.14em}h1{margin:0;font:700 clamp(2.2rem,8vw,4.8rem)/.95 system-ui,sans-serif;letter-spacing:-.06em}.status{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:.86rem}.status span{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 18px var(--mint)}.timeline{min-height:320px;border:1px solid var(--line);border-radius:18px 18px 6px 6px;background:rgba(21,27,34,.88);overflow:hidden}.empty{min-height:320px;display:grid;place-content:center;grid-gap:8px;gap:8px;text-align:center;color:var(--muted)}.empty strong{color:var(--ink);font:650 1.15rem system-ui,sans-serif}.message{display:grid;grid-template-columns:42px 1fr;grid-gap:14px;gap:14px;padding:20px;border-bottom:1px solid var(--line)}.message:last-child{border-bottom:0}.avatar{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:#20362f;color:var(--mint);font-weight:800}.message-meta{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px}.message-meta strong{font-family:system-ui,sans-serif}.message-meta span,.message-meta time{color:var(--muted);font-size:.78rem}.message-meta time{margin-left:auto}.message p{margin:8px 0 0;line-height:1.6;white-space:pre-wrap}.composer{display:grid;grid-template-columns:1fr 1fr;grid-gap:14px;gap:14px;margin-top:12px;padding:18px;border:1px solid var(--line);border-radius:6px 6px 18px 18px;background:var(--panel-2)}label{display:grid;grid-gap:7px;gap:7px;color:var(--muted);font-size:.78rem}.message-field{grid-column:1/-1}input,textarea{width:100%;border:1px solid #34404c;border-radius:9px;padding:12px 13px;background:#0f141a;color:var(--ink);resize:vertical}input:focus,textarea:focus{outline:2px solid var(--mint);outline-offset:2px}button{grid-column:1/-1;justify-self:end;border:0;border-radius:9px;padding:12px 18px;background:var(--mint);color:#07120e;font-weight:800;cursor:pointer}button:disabled{opacity:.55;cursor:wait}.error{padding:12px 14px;border:1px solid #5e3030;border-radius:9px;background:#29191b;color:var(--danger)}footer{padding:18px 4px 0;color:var(--muted);text-align:center;font-size:.72rem}@media (max-width:620px){.shell{width:min(100% - 20px,860px);padding-top:24px}.room-header{align-items:start}.composer{grid-template-columns:1fr}.message-field,button{grid-column:auto}.message-meta time{width:100%;margin-left:0}}