* { box-sizing: border-box; }
:root {
  --bg: #0f1216;
  --panel: #151a21;
  --border: #2a313a;
  --text: #ffffff;
  --muted: #a9b1bb;
  --accent: #3fb950;
  --primary: #58a6ff;
  --danger: #f85149;
  --focus: #c9d1d9;
}
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
}
.mono { font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji"; }
.sub { color: var(--muted); margin-top: -4px; }
main { max-width: 900px; margin: 0 auto; padding: 15px; }

#landing { padding: 24px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel); }
.landing-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.host-box { display: flex; gap: 8px; align-items: center; flex: 1; }
.host-box input { flex: 1; }
.join-box { display: none; }
.join-box input { flex: 1; }

.session-header { display: flex; gap: 12px; justify-content: space-between; align-items: center; margin-top: 16px; }
.share { display: flex; gap: 8px; align-items: center; }
.share-url { width: 320px; }
.hint { color: var(--muted); margin-left: 12px; }
.tag { margin-left: 8px; padding: 2px 6px; border: 1px solid var(--border); border-radius: 999px; color: var(--muted); }

.panel { margin-top: 16px; padding: 16px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel); display: flex; gap: 8px; align-items: center; }
.controls { display: flex; gap: 16px; align-items: center; justify-content: space-between; margin-top: 16px; }
.round { color: var(--muted); }

.btn { cursor: pointer; border: 1px solid var(--border); background: #0f1318; color: var(--text); border-radius: 10px; padding: 10px 14px; font-weight: 600; }
.btn:hover { border-color: #3b434d; }
.btn:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.btn[disabled] { opacity: 0.6; cursor: not-allowed; }
.btn.primary { background: #0d1b2a; border-color: #113a5e; color: var(--primary); }
.btn.primary:hover { border-color: #1f5b90; }
.btn.accent { background: #0f1a12; border-color: #244a31; color: var(--accent); }
.btn.danger { background: #1a0f10; border-color: #5a3032; color: var(--danger); }

input[type="text"] { background: #0d1117; border: 1px solid var(--border); border-radius: 10px; color: var(--text); padding: 10px 12px; }
input[type="text"]::placeholder { color: #6e7681; }
input[type="text"]:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.deck { display: grid; grid-template-columns: repeat(6, minmax(64px, 1fr)); gap: 8px; margin-top: 16px; }
.deck .card { padding: 16px; border-radius: 12px; border: 1px solid var(--border); background: #0d1117; color: var(--text); font-weight: 700; text-align: center; cursor: pointer; }
.deck .card:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.deck .card.selected { border-color: var(--accent); color: var(--accent); }

.participants { margin-top: 16px; }
.list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 8px; }
.list li { display: flex; justify-content: space-between; align-items: center; padding: 10px; border: 1px solid var(--border); border-radius: 10px; background: #0d1117; }
.list .status { font-size: 12px; color: var(--muted); }
.list .status.voted { color: var(--accent); }

.results { margin-top: 16px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel); padding: 16px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; }
.grid .vote { border: 1px solid var(--border); border-radius: 10px; padding: 10px; background: #0d1117; display: flex; justify-content: space-between; }
.grid .vote .val { font-weight: 700; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 10px; }
.stats.spread { border: 1px dashed var(--accent); border-radius: 8px; padding: 8px; }

.msg { margin-top: 12px; color: var(--muted); }

@media (max-width: 640px) {
  .share-url { width: 100%; }
  .panel { flex-direction: column; align-items: stretch; }
  .controls { flex-direction: column; align-items: stretch; }
}