:root{--brand: #e11d48;--brand-600: #be123c;--bg: #f8fafc;--panel: #ffffff;--line: #e2e8f0;--text: #0f172a;--muted: #64748b;--ok: #16a34a;--err: #dc2626}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica,Arial,sans-serif;color:var(--text);background:var(--bg)}.login-box{max-width:360px;margin:18vh auto;background:var(--panel);padding:28px;border-radius:16px;box-shadow:0 10px 30px #00000014;border-top:4px solid var(--brand);display:grid;gap:12px}.login-box h1{margin:0;font-size:18px}.subtitle{color:var(--muted);margin:0;font-size:13px}.error{color:var(--err);background:#fff1f2;padding:10px 12px;border-radius:8px;font-size:13px}.login-box label{display:grid;gap:6px;font-size:12px;color:var(--muted)}.login-box input{padding:10px 12px;border:1px solid var(--line);border-radius:10px;font:inherit;outline:none}.login-box input:focus{border-color:var(--brand);box-shadow:0 0 0 3px #fff1f2}.login-box button{padding:12px 14px;border:0;border-radius:10px;background:var(--brand);color:#fff;font-weight:600;cursor:pointer}.login-box button:disabled{opacity:.6;cursor:not-allowed}.app{min-height:100%;display:grid;grid-template-rows:auto 1fr}.topbar{background:var(--panel);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:14px 20px;position:sticky;top:0;z-index:10}.brand{font-weight:700;color:var(--brand);letter-spacing:.2px}.badge{font-size:11px;background:#fff1f2;color:var(--brand);border:1px solid #ffe4e6;padding:4px 8px;border-radius:999px}main{padding:20px}main>div{max-width:960px;margin:0 auto}.card{background:var(--panel);border:1px solid var(--line);padding:18px;border-radius:14px;margin-bottom:16px}.card h3{margin:0 0 10px;font-size:14px;color:var(--muted)}.grid{display:grid;gap:14px}.card.session-form{display:grid;gap:12px}.card .help{color:var(--muted);font-size:13px;margin:-6px 0 2px}@media (min-width: 760px){.grid,.grid-2{grid-template-columns:repeat(2,1fr)}}.session-card{display:flex;flex-direction:column;gap:8px}.session-head{display:flex;align-items:center;justify-content:space-between;gap:10px}.meta{color:var(--muted);font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.actions{display:flex;flex-wrap:wrap;gap:8px}.actions button{padding:8px 12px;border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer;font:inherit}.actions button.danger{color:var(--err);border-color:#fecdd3;background:#fff1f2}.actions a.secondary{padding:8px 12px;border:1px solid var(--line);background:#fff;border-radius:10px;color:var(--brand);text-decoration:none}.pill{padding:4px 8px;border-radius:999px;font-size:12px;background:#f1f5f9;color:var(--muted)}.pill.ok{background:#dcfce7;color:#166534}.pill.err{background:#fee2e2;color:#991b1b}.empty{color:var(--muted);font-size:13px;padding:8px 2px}.send-form{display:grid;gap:10px}.send-form label{display:grid;gap:6px;font-size:12px;color:var(--muted)}.send-form input,.send-form textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font:inherit;outline:none}.send-form textarea{resize:vertical}.toolbar{display:flex;gap:8px;margin:12px 0 18px}.toolbar button{padding:8px 12px;border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer;font:inherit}.realtime,.logs{max-height:420px;overflow:auto;display:grid;gap:8px;padding:4px}.inbox{padding:10px;border:1px solid var(--line);border-radius:10px}.inbox .meta{margin-bottom:4px}.bubble{background:#f8fafc;padding:8px 10px;border-radius:10px;word-wrap:break-word}.log{padding:8px 10px;border-radius:10px;font-size:12px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;background:#0f172a;color:#e2e8f0}.log.err{background:#fff1f2;color:#7f1d1d;border:1px solid #fecdd3}.grid-2{display:grid;gap:14px;grid-template-columns:1fr}.kv{display:grid;gap:10px}.kv .row{display:flex;justify-content:space-between;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#fafafa}