:root {
  --bg: #0b1020;
  --fg: #e8ecf4;
  --muted: #8a93a8;
  --accent: #7aa2ff;
  --accent-dim: #4a6bcc;
  --card: #141a30;
  --card-border: #1f2740;
  --danger: #ff6b6b;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
}

a { color: var(--accent); }

header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--card-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

header h1 {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: 0.03em;
}

nav a {
  color: var(--accent);
  text-decoration: none;
  margin-left: 1rem;
}
nav a:hover { text-decoration: underline; }
nav a.active { color: var(--fg); font-weight: 600; }

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem;
}

section {
  background: var(--card);
  padding: 1rem 1.25rem;
  border-radius: 8px;
  margin-bottom: 1.25rem;
  border: 1px solid var(--card-border);
}

section h2 {
  margin-top: 0;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.status { color: var(--muted); font-style: italic; }
.error { color: var(--danger); }

ul { padding-left: 1.25rem; }

img.responsive,
video.responsive {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
  background: #000;
}

img.keogram {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
  background: #000;
}

.session-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  list-style: none;
  padding: 0;
}

.session-card {
  background: #0e1428;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--card-border);
}

.session-card a {
  display: block;
  text-decoration: none;
  color: inherit;
}

.session-card img {
  width: 100%;
  display: block;
  background: #000;
  aspect-ratio: 4 / 1;
  object-fit: cover;
}

.session-card .label {
  padding: 0.5rem 0.75rem;
  font-size: 0.95rem;
  color: var(--fg);
}

.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
@media (min-width: 800px) {
  .product-grid {
    grid-template-columns: 1fr 1fr;
  }
  .product-grid .full { grid-column: 1 / -1; }
}

.product h3 {
  margin: 0 0 0.5rem 0;
  font-size: 0.95rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

form.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.75rem 1rem;
  align-items: end;
}

form.controls label {
  display: flex;
  flex-direction: column;
  font-size: 0.85rem;
  color: var(--muted);
  gap: 0.25rem;
}

form.controls input,
form.controls select,
form.controls button {
  background: #0e1428;
  border: 1px solid var(--card-border);
  color: var(--fg);
  padding: 0.5rem 0.6rem;
  border-radius: 4px;
  font: inherit;
}

form.controls button {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
  cursor: pointer;
  font-weight: 600;
}
form.controls button:hover { background: var(--accent); }
form.controls button:disabled { opacity: 0.5; cursor: not-allowed; }

.player {
  margin-top: 1rem;
  background: #000;
  border-radius: 6px;
  overflow: hidden;
}

.player img.frame {
  display: block;
  width: 100%;
  height: auto;
  background: #000;
}

.player-placeholder {
  display: none;
  padding: 3rem 1.5rem;
  text-align: center;
  background: #0e1428;
}

.player-placeholder .placeholder-title {
  margin: 0 0 0.25rem 0;
  font-size: 1.1rem;
  color: var(--fg);
  letter-spacing: 0.03em;
}

.player-placeholder .placeholder-sub {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.player-placeholder .placeholder-sub strong {
  color: var(--accent);
  font-weight: 600;
}

.player.empty .player-placeholder { display: block; }
.player.empty .frame { display: none; }
.player.empty .player-controls { display: none; }

.player-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  padding: 0.75rem;
  background: #0e1428;
}

.player-controls button {
  background: var(--accent-dim);
  border: 0;
  color: var(--fg);
  padding: 0.5rem 0.9rem;
  border-radius: 4px;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
}
.player-controls button:hover { background: var(--accent); }

.player-controls input[type="range"] { flex: 1 1 200px; }

.player-controls .meta {
  font-size: 0.85rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

footer {
  text-align: center;
  color: var(--muted);
  padding: 2rem 1rem;
  font-size: 0.85rem;
}
footer a { color: var(--accent); }