:root{--bg: #0f1115;--panel: #181b22;--border: #262b35;--text: #e7ebf0;--muted: #9aa4b2;--accent: #4f8cff;--ok: #3fb950;--danger: #f85149}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--accent);text-decoration:none}.topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;border-bottom:1px solid var(--border);background:var(--panel)}.brand{font-weight:700}.container{max-width:1000px;margin:0 auto;padding:24px 20px}.card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:16px;margin-bottom:12px}.row{display:flex;gap:12px;align-items:center}.spread{justify-content:space-between}button{background:var(--accent);color:#fff;border:0;border-radius:8px;padding:8px 14px;font-size:14px;cursor:pointer}button.secondary{background:#2a2f3a}button.danger{background:var(--danger)}button:disabled{opacity:.5;cursor:default}input,textarea,select{width:100%;background:#0d1017;color:var(--text);border:1px solid var(--border);border-radius:8px;padding:8px 10px;font-size:14px}label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}.badge{font-size:12px;padding:2px 8px;border-radius:999px;background:#2a2f3a}.badge.on{background:#3fb9502e;color:var(--ok)}.badge.off{background:#f851492e;color:var(--danger)}.muted{color:var(--muted);font-size:13px}.msg{padding:8px 12px;border-radius:10px;margin:6px 0;max-width:80%;white-space:pre-wrap}.msg.user{background:#1d2733;margin-left:auto}.msg.assistant{background:#20242d}.msg.system{background:#1a1a1a;color:var(--muted);font-size:12px}.center{min-height:70vh;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:16px}.err{color:var(--danger);font-size:13px}table{width:100%;border-collapse:collapse}td,th{text-align:left;padding:8px;border-bottom:1px solid var(--border);font-size:14px}