:root {
  color-scheme: dark;
  --bg: #0e0e12;
  --panel: #17171d;
  --accent: #ff4d5e;
  --text: #f2f2f5;
  --muted: #8a8a95;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
}
h1 { font-size: 2.2rem; margin-bottom: 0.2em; }
h1 .accent { color: var(--accent); }
p.sub { color: var(--muted); margin-top: 0; }
.panel {
  background: var(--panel);
  border-radius: 16px;
  padding: 32px;
  width: min(480px, 90vw);
}
input, button {
  font-size: 1.1rem;
  padding: 12px 16px;
  border-radius: 10px;
  border: none;
  margin-top: 12px;
  width: 100%;
}
input {
  background: #24242c;
  color: var(--text);
  border: 1px solid #33333d;
}
button {
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}
button:disabled { opacity: 0.5; cursor: default; }
button.secondary { background: #2a2a33; }
.code {
  font-size: 3rem;
  letter-spacing: 0.3em;
  font-weight: 800;
  margin: 16px 0;
}
video { width: 100%; border-radius: 12px; background: #000; }
.player-list { text-align: left; margin-top: 16px; }
.player-row { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid #262630; }
.poster { max-height: 220px; border-radius: 10px; margin: 12px 0; }
.timer { font-size: 2.5rem; font-weight: 800; color: var(--accent); }
.correct { color: #4dff7a; }