/* ============================================================
   webgl-mandala.css — Sacred Geometry Mandala page styles
   ASMR Sanctuary · asmr-relax.top
   ============================================================ */

/* ── Stage ─────────────────────────────────────────────────── */
.webgl-stage {
  position: relative;
  width: 100%;
  height: 100svh;
  overflow: hidden;
  background: #060310;
}

#mandala-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* ── Badge ─────────────────────────────────────────────────── */
.sim-badge {
  position: absolute;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.3rem 1rem;
  border-radius: 999px;
  background: rgba(6, 3, 16, 0.55);
  backdrop-filter: blur(12px) saturate(1.4);
  -webkit-backdrop-filter: blur(12px) saturate(1.4);
  border: 1px solid rgba(168, 85, 247, 0.25);
  color: #d4b8ff;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
  pointer-events: none;
  z-index: 10;
}

/* ── Controls ──────────────────────────────────────────────── */
.sim-controls {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  background: rgba(6, 3, 16, 0.6);
  backdrop-filter: blur(14px) saturate(1.5);
  -webkit-backdrop-filter: blur(14px) saturate(1.5);
  border: 1px solid rgba(168, 85, 247, 0.2);
  z-index: 10;
  white-space: nowrap;
}

/* ── Buttons ───────────────────────────────────────────────── */
.sim-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(168, 85, 247, 0.3);
  background: rgba(168, 85, 247, 0.1);
  color: #d4b8ff;
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  line-height: 1;
}

.sim-btn:hover {
  background: rgba(168, 85, 247, 0.22);
  border-color: rgba(168, 85, 247, 0.55);
  color: #ede0ff;
}

.sim-btn:focus-visible {
  outline: 2px solid #a855f7;
  outline-offset: 2px;
}

.sim-btn.active {
  background: rgba(168, 85, 247, 0.4);
  border-color: #a855f7;
  color: #f3e8ff;
  box-shadow: 0 0 10px rgba(168, 85, 247, 0.45);
}

/* ── Label ─────────────────────────────────────────────────── */
.sim-label {
  font-size: 0.7rem;
  color: rgba(212, 184, 255, 0.6);
  letter-spacing: 0.06em;
  user-select: none;
}

/* ── Slider ────────────────────────────────────────────────── */
.sim-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 90px;
  height: 4px;
  border-radius: 4px;
  background: rgba(168, 85, 247, 0.25);
  outline: none;
  cursor: pointer;
  vertical-align: middle;
}

.sim-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #a855f7;
  border: 2px solid #d4b8ff;
  box-shadow: 0 0 6px rgba(168, 85, 247, 0.6);
  transition: transform 0.15s;
}

.sim-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.sim-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #a855f7;
  border: 2px solid #d4b8ff;
  box-shadow: 0 0 6px rgba(168, 85, 247, 0.6);
  cursor: pointer;
}

.sim-slider::-moz-range-track {
  height: 4px;
  border-radius: 4px;
  background: rgba(168, 85, 247, 0.25);
}

.sim-slider:focus-visible {
  outline: 2px solid #a855f7;
  outline-offset: 3px;
}

/* ── Below-fold section ────────────────────────────────────── */
.webgl-below {
  background: var(--bg, #0d0a1a);
  padding: 3rem 0;
}

/* ── Back link ─────────────────────────────────────────────── */
.webgl-back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent, #a855f7);
  text-decoration: none;
  margin-bottom: 1.75rem;
  transition: color 0.2s, gap 0.2s;
}

.webgl-back-link:hover {
  color: var(--accent-hover, #c084fc);
  gap: 0.55rem;
}

/* ── Intro block ───────────────────────────────────────────── */
.webgl-intro {
  max-width: 680px;
  margin: 0 auto 2rem;
  text-align: center;
}

.webgl-intro h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--fg, #e2e8f0);
  margin-bottom: 0.75rem;
}

.webgl-intro p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--fg-muted, #94a3b8);
}

/* ── Stats / info cards grid ───────────────────────────────── */
.sim-webgl-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.85rem;
  max-width: 680px;
  margin: 0 auto 2rem;
}

.sim-webgl-card {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.85rem 1rem;
  border-radius: 10px;
  background: rgba(168, 85, 247, 0.07);
  border: 1px solid rgba(168, 85, 247, 0.18);
  font-size: 0.82rem;
  color: var(--fg-muted, #94a3b8);
  text-align: center;
}

.sim-webgl-card strong {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent, #a855f7);
  margin-bottom: 0.1rem;
}

/* ── Nav over canvas ───────────────────────────────────────── */
body.webgl-page .nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(6, 3, 16, 0.5);
  backdrop-filter: blur(16px) saturate(1.6);
  -webkit-backdrop-filter: blur(16px) saturate(1.6);
  border-bottom: 1px solid rgba(168, 85, 247, 0.12);
}

/* Push the webgl-stage down so content starts below the nav */
body.webgl-page .webgl-stage {
  padding-top: 0;
}

/* ── Related grid ──────────────────────────────────────────── */
.related-section {
  max-width: 680px;
  margin: 0 auto;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.65rem;
}

.related-grid__item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 0.9rem;
  border-radius: 8px;
  border: 1px solid rgba(168, 85, 247, 0.18);
  background: rgba(168, 85, 247, 0.06);
  color: var(--accent, #a855f7);
  font-size: 0.84rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s;
}

.related-grid__item:hover {
  background: rgba(168, 85, 247, 0.16);
  border-color: rgba(168, 85, 247, 0.4);
  color: var(--accent-hover, #c084fc);
}

/* ── FAQ ───────────────────────────────────────────────────── */
.faq-section {
  max-width: 680px;
  margin: 0 auto;
}

.faq-section h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--fg, #e2e8f0);
  margin-bottom: 1rem;
}

.faq-item {
  border: 1px solid rgba(168, 85, 247, 0.15);
  border-radius: 8px;
  margin-bottom: 0.55rem;
  overflow: hidden;
  background: rgba(168, 85, 247, 0.04);
}

.faq-item summary {
  padding: 0.85rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--fg, #e2e8f0);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.1rem;
  color: var(--accent, #a855f7);
  transition: transform 0.2s;
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item p,
.faq-item > *:not(summary) {
  padding: 0 1rem 0.85rem;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--fg-muted, #94a3b8);
  margin: 0;
}

.faq-item a {
  color: var(--accent, #a855f7);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.faq-item a:hover {
  color: var(--accent-hover, #c084fc);
}

/* ── Mobile ────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .sim-controls {
    gap: 0.4rem;
    padding: 0.45rem 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
    max-width: calc(100vw - 2rem);
    bottom: 1rem;
  }

  .sim-slider {
    width: 70px;
  }

  .sim-btn {
    padding: 0.28rem 0.6rem;
    font-size: 0.74rem;
  }

  .sim-badge {
    font-size: 0.62rem;
    padding: 0.25rem 0.75rem;
  }

  .webgl-intro h2 {
    font-size: 1.15rem;
  }

  .sim-webgl-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .related-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Inline-style replacements (CSP: style-src self, no unsafe-inline) */
.webgl-related { margin-top: 2rem; }
.webgl-related h3 { font-size: 1.1rem; margin-bottom: 1rem; color: var(--fg, #e2e8f0); }
.webgl-faq { margin-top: 2.5rem; }