:root {
  color-scheme: light dark;
  --bg: #14161a;
  --panel: #1e2128;
  --text: #e8e9ec;
  --muted: #9aa0ac;
  --accent: #4f8cff;
  --danger: #ff5f5f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 24px 16px 48px;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

header {
  max-width: 720px;
  margin: 0 auto 24px;
  text-align: center;
}

h1 {
  margin: 0 0 4px;
  font-size: 1.8rem;
}

.subtitle {
  margin: 0;
  color: var(--muted);
}

main {
  max-width: 720px;
  margin: 0 auto;
}

.player-wrap {
  background: var(--panel);
  border-radius: 12px;
  padding: 12px;
}

video {
  width: 100%;
  max-width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: 8px;
  display: block;
}

.status {
  margin: 10px 2px 2px;
  font-size: 0.9rem;
  color: var(--muted);
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 16px;
}

.controls label {
  color: var(--muted);
  font-size: 0.9rem;
}

.controls input {
  flex: 1 1 160px;
  min-width: 0;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid #383c46;
  background: #10121600;
  background: var(--bg);
  color: var(--text);
}

.controls button {
  padding: 8px 16px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-weight: 600;
}

#play-btn {
  background: var(--accent);
  color: #fff;
}

#stop-btn {
  background: var(--danger);
  color: #fff;
}

.hint {
  margin-top: 14px;
  font-size: 0.85rem;
  color: var(--muted);
  word-break: break-all;
}