/* ══════════════════════════════════════════════
   TOC — Trumpet Scene CSS
   3D scene-specific styles built on design tokens
   ══════════════════════════════════════════════ */

/* ── Scene canvas ─────────────────────────────────────────── */
#tsc-scene-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

/* ── Grid overlay (subtle, using tokens) ──────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(
      color-mix(in srgb, var(--color-brand-400) 4%, transparent) 1px,
      transparent 1px
    ),
    linear-gradient(
      90deg,
      color-mix(in srgb, var(--color-brand-400) 4%, transparent) 1px,
      transparent 1px
    );
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

body {
  /* Dark scene by default for 3D */
  background: var(--color-surface-0);
  color: var(--color-text-primary);
}

@media (prefers-color-scheme: dark) {
  body {
    background: color-mix(in srgb, var(--color-neutral-900) 90%, transparent);
  }
}

/* ── Scene Info Overlay ───────────────────────────────────── */
.scene-info {
  position: fixed;
  top: 4.25rem;
  left: 1.5rem;
  z-index: 50;
  background: color-mix(in srgb, var(--color-surface-0) 80%, transparent);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border-100);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  max-width: 260px;
  color: var(--color-text-primary);
}

.scene-info__title {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-xs);
}

.scene-info__note {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-brand-500);
  margin-bottom: var(--space-xs);
  line-height: 1.2;
}

.scene-info__freq {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xxs);
  font-family: var(--font-mono);
}

.scene-info__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  padding: 1px var(--space-sm);
  border-radius: var(--radius-full);
  background: color-mix(in srgb, var(--color-success-500) 15%, transparent);
  color: var(--color-success-500);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.05em;
}

.scene-info__hint {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  line-height: var(--leading-relaxed);
}

.scene-info__hint strong {
  color: var(--color-brand-500);
  font-weight: var(--font-medium);
}

/* ── Dark mode 3D adjustments ─────────────────────────────── */
@media (prefers-color-scheme: dark) {
  .scene-info {
    background: color-mix(in srgb, var(--color-surface-0) 85%, transparent);
    border-color: var(--color-border-200);
  }

  .scene-info__note {
    color: var(--color-brand-400);
  }

  .scene-info__hint strong {
    color: var(--color-brand-300);
  }
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 640px) {
  .scene-info {
    top: auto;
    bottom: 3.5rem;
    left: var(--space-md);
    right: var(--space-md);
    max-width: none;
    max-height: 35vh;
    overflow-y: auto;
  }
}

@media (max-width: 480px) {
  .scene-info {
    padding: var(--space-sm) var(--space-md);
  }

  .scene-info__title {
    font-size: calc(var(--text-xs) - 1px);
  }

  .scene-info__note {
    font-size: var(--text-base);
  }
}