:root { --bg:#0e1433; --card:#121940; --ink:#fff; --accent:#38bdf8; --danger:#dc2626; }
* { box-sizing: border-box; }
html, body { margin:0; padding:0; background:var(--bg); color:var(--ink);
  font-family: -apple-system, system-ui, sans-serif; font-size:20px; }
.skip { position:absolute; left:-999px; }
.skip:focus { left:8px; top:8px; background:#fff; color:#000; padding:8px; z-index:10; }
header { padding:16px 16px 0; text-align:center; }
h1 { margin:0; font-size:2rem; }
.tag { margin:4px 0 0; opacity:.8; }
main { padding:16px; max-width:680px; margin:0 auto; }
#cam { width:100%; max-height:34vh; object-fit:cover; border-radius:14px; background:#000; }
.status { font-size:1.25rem; line-height:1.4; min-height:3.2em; margin:14px 4px;
  background:var(--card); padding:14px; border-radius:12px; }
.grid { display:grid; grid-template-columns:1fr 1fr; gap:14px; }
.act { font-size:1.3rem; padding:26px 12px; border:0; border-radius:16px;
  background:var(--accent); color:#001; font-weight:700; min-height:96px; }
.act:active { transform:scale(.98); }
.talk { margin-top:16px; width:100%; padding:26px; font-size:1.35rem; font-weight:700;
  border:0; border-radius:16px; background:#16a34a; color:#fff; touch-action:none; user-select:none; }
.talk.rec { background:#f59e0b; color:#001; }
.ghost { margin-top:14px; width:100%; padding:18px; font-size:1.15rem;
  border:2px solid var(--accent); background:transparent; color:var(--ink); border-radius:14px; }
.emergency { margin-top:18px; width:100%; padding:24px; font-size:1.3rem; font-weight:700;
  border:0; border-radius:16px; background:var(--danger); color:#fff; }
:focus-visible { outline:4px solid #fff; outline-offset:2px; }
#settings { max-width:680px; margin:8px auto 40px; padding:0 16px; }
summary { padding:14px; font-size:1.15rem; }
.row { display:flex; gap:12px; align-items:center; flex-wrap:wrap; padding:12px;
  background:var(--card); border-radius:12px; margin-bottom:10px; }
.row input[type=tel], .row input[type=range] { flex:1; min-width:140px; padding:10px; font-size:1.1rem; }
@media (prefers-contrast: more) { :root { --accent:#7dd3fc; } .status { background:#000; } }