:root{--teal:#0d9488;--teal-700:#0f766e;--ink:#0f172a;--muted:#64748b;--line:#e2e8f0;--bg:#f7f8f9;--card:#ffffff;--accent:var(--teal)}[data-brand=hospital]{--accent:#1e5aa8;--teal:#1e5aa8;--teal-700:#184a8a}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}a{color:var(--teal-700)}.shell{max-width:760px;margin:0 auto;padding:16px}.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:var(--card);border-bottom:1px solid var(--line);position:-webkit-sticky;position:sticky;top:0;z-index:10}.brand{font-weight:800;letter-spacing:-.02em;color:var(--accent);font-size:18px}.nav{display:flex;gap:16px;align-items:center}.nav a{text-decoration:none;color:var(--muted);font-weight:600;font-size:14px}.nav a.active{color:var(--accent)}.linkbtn{background:none;border:0;color:var(--muted);font:inherit;font-weight:600;font-size:14px;cursor:pointer}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;margin-bottom:14px}.card h2{margin:0 0 12px;font-size:16px}.muted{color:var(--muted)}.row{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}.row:last-child{border-bottom:0}.chip{display:inline-block;font-size:12px;padding:2px 8px;border-radius:999px;background:#f1f5f9;color:var(--muted)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--accent);color:#fff;border:0;border-radius:10px;padding:10px 16px;font-weight:700;font-size:14px;cursor:pointer;text-decoration:none}.btn:disabled{opacity:.6;cursor:default}.btn--ghost{background:transparent;color:var(--teal-700);border:1px solid var(--line)}.btn--sm{padding:6px 12px;font-size:13px}.input{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:16px;outline:none}.input:focus{border-color:var(--accent)}.alert{padding:10px 12px;border-radius:10px;font-size:14px;margin:10px 0}.alert--err{background:#fef2f2;color:#b91c1c}.alert--ok{background:#ecfdf5;color:#047857}.login{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px}.login__box{width:100%;max-width:400px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px}.login__box h1{font-size:22px;margin:0 0 4px}.msg{max-width:80%;padding:10px 12px;border-radius:12px;margin:6px 0;font-size:14px;line-height:1.4}.msg--me{background:var(--accent);color:#fff;margin-left:auto;border-bottom-right-radius:4px}.msg--them{background:#f1f5f9;color:var(--ink);border-bottom-left-radius:4px}.msg__time{display:block;font-size:11px;opacity:.7;margin-top:4px}