*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0a0a;
  --surface: #111;
  --border: #1e3a2a;
  --accent: #00ff9d;
  --accent-dim: #00a86b;
  --text: #c8ffe0;
  --text-muted: #6a9a80;
  --font-mono: 'Courier New', Courier, monospace;
  --font-display: Georgia, 'Times New Roman', serif;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
}

/* ── Home page ───────────────────────────────────────────────────────── */
.home-header {
  text-align: center;
  padding: 3rem 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}
.home-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}
.home-header p {
  color: var(--text-muted);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
}

.section-label {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 2rem 1.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

.channel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1px;
  background: var(--border);
}

.channel-card {
  background: var(--surface);
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  border: none;
  text-align: left;
  color: inherit;
  transition: background 0.15s;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.channel-card:hover,
.channel-card:focus {
  background: #162a1e;
  outline: none;
}
.channel-card:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: -1px;
}
.channel-card .card-icon { font-size: 1.5rem; }
.channel-card .card-name {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--text);
}
.channel-card .card-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.channel-card .card-count {
  font-size: 0.65rem;
  color: var(--accent-dim);
  letter-spacing: 0.1em;
  margin-top: auto;
}

/* ── Time Machine ─────────────────────────────────────────────────────── */
.time-machine {
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--border);
}
.time-machine h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
}
.tm-controls {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.tm-controls label { font-size: 0.75rem; color: var(--text-muted); letter-spacing: 0.1em; }
.tm-year-display {
  font-family: var(--font-display);
  font-size: 3rem;
  min-width: 5rem;
  text-align: center;
}
input[type=range] {
  -webkit-appearance: none;
  width: 300px;
  height: 4px;
  background: var(--border);
  outline: none;
  cursor: pointer;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(0,255,157,0.5);
}
.tm-month-picker {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.tm-month {
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  padding: 4px 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.1s;
}
.tm-month:hover { border-color: var(--accent-dim); color: var(--text); }
.tm-month.active { border-color: var(--accent); color: var(--accent); background: #0d1f16; }
.tm-go-btn {
  padding: 0.5rem 1.5rem;
  background: var(--accent);
  color: #000;
  border: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: opacity 0.15s;
}
.tm-go-btn:hover { opacity: 0.85; }

/* ── Player page ─────────────────────────────────────────────────────── */
.player-wrap {
  position: fixed;
  inset: 0;
  background: #000;
}
#yt-player {
  width: 100%;
  height: 100%;
  border: none;
}

/* HUD overlay */
.hud {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  padding: 1rem 1.5rem;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  z-index: 100;
  transition: opacity 0.5s ease;
}
.hud.hud-hidden { opacity: 0; pointer-events: none; }
.hud-channel { font-size: 0.65rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--text-muted); }
.hud-title { font-family: var(--font-display); font-size: 1.1rem; }
.hud-meta { font-size: 0.75rem; color: var(--text-muted); }
.hud-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.5rem;
}
.hud-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 4px 12px;
  cursor: pointer;
  letter-spacing: 0.08em;
  transition: border-color 0.1s, color 0.1s;
}
.hud-btn:hover { border-color: var(--accent); color: var(--accent); }
.hud-counter { font-size: 0.65rem; color: var(--text-muted); margin-left: auto; }

/* Archive video element (same position as YT iframe) */
.player-wrap video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background: #000;
  display: none;
}
.player-wrap.source-archive #yt-player { display: none; }
.player-wrap.source-archive video { display: block; }