:root{--bg:#0b1020;--panel:#131a30;--panel-2:#1a2240;--text:#e6ebf5;--muted:#8a93ab;--accent:#6aa7ff;--accent-2:#9b8cff;--border:#243054}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;height:100%}main{max-width:760px;margin:0 auto;padding:24px 16px 120px}header.hero{padding:32px 0 16px}header.hero h1{margin:0 0 8px;font-size:28px;letter-spacing:-.01em}header.hero p{margin:0;color:var(--muted);font-size:15px}.messages{display:flex;flex-direction:column;gap:12px;margin-top:24px}.msg{padding:12px 14px;border-radius:12px;border:1px solid var(--border);background:var(--panel);white-space:pre-wrap;line-height:1.5;font-size:15px}.msg.user{background:var(--panel-2);align-self:flex-end;max-width:85%}.msg.assistant{align-self:flex-start;max-width:95%}.msg.assistant .sources{margin-top:8px;font-size:12px;color:var(--muted)}form.composer{position:fixed;bottom:0;left:0;right:0;padding:12px 16px 18px;background:linear-gradient(180deg,transparent,var(--bg) 30%);display:flex;justify-content:center}form.composer .row{width:100%;max-width:760px;display:flex;gap:8px}form.composer input{flex:1 1;padding:12px 14px;background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:10px;font-size:15px;outline:none}form.composer input:focus{border-color:var(--accent)}form.composer button{padding:0 16px;background:var(--accent);color:#0a1024;border:0;border-radius:10px;font-weight:600;cursor:pointer}form.composer button.voice{background:var(--accent-2);color:#0a1024}form.composer button.voice[aria-pressed=true]{background:#ff6b8a}.voice-error{display:inline-flex;align-items:center;color:#ff6b8a;font-size:18px;cursor:help}form.composer button:disabled{opacity:.55;cursor:progress}