:root {
  --bg: #0f1115; --panel: #1a1d25; --accent: #4f8cff; --text: #e6e8ee;
  --muted: #8a90a0; --error: #ff6b6b;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg); color: var(--text);
}
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px; border-bottom: 1px solid #262a35; background: var(--panel);
}
header h1 { font-size: 18px; margin: 0; }
.session { color: var(--muted); font-size: 13px; display: flex; align-items: center; gap: 12px; }
#btn-logout { margin: 0; padding: 6px 12px; font-size: 13px; background: #2c3140; }
.card {
  max-width: 420px; margin: 60px auto; padding: 28px; background: var(--panel);
  border-radius: 12px; border: 1px solid #262a35;
}
.card h2 { margin-top: 0; }
.hint { color: var(--muted); font-size: 13px; line-height: 1.5; }
.hint code { background: #0d0f14; padding: 1px 5px; border-radius: 4px; }
label { display: block; margin: 16px 0 6px; font-size: 13px; color: var(--muted); }
input {
  width: 100%; padding: 10px; border-radius: 8px; border: 1px solid #2c3140;
  background: #0d0f14; color: var(--text); font-size: 14px;
}
button {
  margin-top: 16px; padding: 10px 18px; border: none; border-radius: 8px;
  background: var(--accent); color: #fff; font-size: 14px; cursor: pointer;
}
button:hover { filter: brightness(1.1); }
.error { color: var(--error); font-size: 13px; margin-top: 10px; min-height: 18px; }
.layout { display: grid; grid-template-columns: 260px 1fr; gap: 22px; padding: 22px; }
.channels { list-style: none; padding: 0; margin: 0; }
.channels li { margin-bottom: 8px; }
.ch {
  width: 100%; margin: 0; display: flex; justify-content: space-between;
  align-items: center; background: var(--panel); border: 1px solid #262a35;
  color: var(--text); text-align: left;
}
.ch-rating { color: var(--muted); font-size: 12px; }
.player-wrap { background: #000; border-radius: 12px; overflow: hidden; }
video { width: 100%; aspect-ratio: 16 / 9; background: #000; display: block; }
.now { padding: 12px 16px; font-size: 14px; background: var(--panel); }
@media (max-width: 720px) { .layout { grid-template-columns: 1fr; } }