/* Holodepth — perspektif görüş frustum diyagramı (Canvas, yeniden kullanılabilir) */

.doc-frustum-diagram {
  margin: 1.75rem 0 0;
  border-radius: var(--radius, 14px);
  border: 1px solid var(--border, rgba(255, 255, 255, 0.08));
  background: linear-gradient(165deg,
      rgba(12, 14, 22, 0.98) 0%,
      rgba(8, 10, 18, 0.99) 100%);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.doc-frustum-diagram__viewport {
  position: relative;
  width: 100%;
  aspect-ratio: 2 / 1;
  min-height: 180px;
  max-height: min(48vh, 380px);
  cursor: crosshair;
}

.doc-frustum-diagram__viewport:hover {
  cursor: zoom-in;
}

.doc-frustum-diagram__canvas {
  display: block;
  width: 100%;
  height: 100%;
  vertical-align: middle;
  outline: none;
}

.doc-frustum-diagram__canvas:focus-visible {
  box-shadow: inset 0 0 0 2px rgba(46, 231, 242, 0.45);
}

/* Kontrol çubuğu */
.doc-frustum-diagram__controls {
  padding: 0.75rem 1rem 0.95rem;
  border-top: 1px solid var(--border, rgba(255, 255, 255, 0.08));
  border-bottom: 1px solid var(--border, rgba(255, 255, 255, 0.06));
  background: rgba(4, 6, 12, 0.45);
}

.doc-frustum-diagram__control-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
}

.doc-frustum-diagram__control-row+.doc-frustum-diagram__control-row {
  margin-top: 0.65rem;
}

.doc-frustum-diagram__control-row--sliders .doc-frustum-diagram__field {
  flex: 1 1 140px;
}

.doc-frustum-diagram__btn {
  flex: 0 0 auto;
  padding: 0.4rem 0.85rem;
  border-radius: 10px;
  border: 1px solid rgba(46, 231, 242, 0.35);
  background: rgba(46, 231, 242, 0.1);
  color: var(--cyan, #2ee7f2);
  font-family: var(--font-sans, system-ui, sans-serif);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.doc-frustum-diagram__btn:hover {
  background: rgba(46, 231, 242, 0.18);
  border-color: rgba(46, 231, 242, 0.55);
}

.doc-frustum-diagram__btn:focus-visible {
  outline: 2px solid var(--cyan, #2ee7f2);
  outline-offset: 2px;
}

.doc-frustum-diagram__btn[aria-pressed="true"] {
  background: rgba(181, 108, 255, 0.15);
  border-color: rgba(181, 108, 255, 0.45);
  color: var(--violet, #b56cff);
}

.doc-frustum-diagram__btn--ghost {
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted, #8b92a4);
}

.doc-frustum-diagram__btn--ghost:hover {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text, #e8eaef);
}

.doc-frustum-diagram__btn--preset {
  padding: 0.35rem 0.75rem;
  font-size: 0.78rem;
}

.doc-frustum-diagram__control-row--presets {
  align-items: center;
  gap: 0.5rem 0.65rem;
}

.doc-frustum-diagram__preset-hint {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted, #8b92a4);
  margin-right: 0.15rem;
}

.doc-frustum-diagram__field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.doc-frustum-diagram__field-label {
  font-family: var(--font-sans, system-ui, sans-serif);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted, #8b92a4);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.doc-frustum-diagram__field input[type="range"] {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  appearance: none;
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
}

.doc-frustum-diagram__field input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan, #2ee7f2), var(--violet, #b56cff));
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.doc-frustum-diagram__field input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan, #2ee7f2), var(--violet, #b56cff));
  border: 1px solid rgba(255, 255, 255, 0.35);
}

/* Alt metin: başlık + kartlar + terim listesi (ortografik vb. sayfalarda aynı iskelet) */
.doc-frustum-diagram__caption {
  padding: 0;
  border-top: 1px solid var(--border, rgba(255, 255, 255, 0.08));
  font-family: var(--font-sans, system-ui, sans-serif);
}

.doc-frustum-diagram__caption-stack {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.05rem 1.15rem 1.25rem;
}

.doc-frustum-diagram__caption-header {
  position: relative;
  padding: 0 0 0.75rem 0.95rem;
}

.doc-frustum-diagram__caption-header::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.12rem;
  bottom: 0.4rem;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg,
      rgba(46, 231, 242, 0.95),
      rgba(181, 108, 255, 0.82));
}

.doc-frustum-diagram__caption-kicker {
  margin: 0 0 0.35rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(181, 165, 210, 0.88);
}

.doc-frustum-diagram__lead-en {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.35;
  color: rgba(235, 242, 255, 0.98);
  text-shadow: 0 0 28px rgba(46, 231, 242, 0.14);
}

.doc-frustum-diagram__lead-en[lang="en"] {
  font-style: normal;
}

.doc-frustum-diagram__caption-panel {
  margin: 0;
  padding: 0.85rem 1rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  background: linear-gradient(145deg,
      rgba(255, 255, 255, 0.04) 0%,
      rgba(255, 255, 255, 0.015) 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.doc-frustum-diagram__caption-panel p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.58;
  color: var(--text, #e8eaef);
}

.doc-frustum-diagram__caption-panel--note {
  border-color: rgba(46, 231, 242, 0.12);
  background: linear-gradient(160deg,
      rgba(46, 231, 242, 0.06) 0%,
      rgba(8, 14, 22, 0.35) 100%);
  box-shadow: inset 0 1px 0 rgba(46, 231, 242, 0.06);
}

.doc-frustum-diagram__note {
  font-size: 0.875rem;
  line-height: 1.58;
  color: rgba(180, 195, 215, 0.95);
}

.doc-frustum-diagram__legend-panel {
  padding: 0.75rem 0.95rem 0.85rem;
  border-radius: 10px;
  border: 1px solid rgba(181, 108, 255, 0.14);
  background: rgba(10, 8, 20, 0.55);
  box-shadow: inset 0 1px 0 rgba(181, 108, 255, 0.06);
}

.doc-frustum-diagram__legend-heading {
  margin: 0 0 0.5rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(200, 175, 245, 0.92);
}

.doc-frustum-diagram__legend {
  margin: 0;
  padding-left: 1.05rem;
  font-size: 0.8125rem;
  color: rgba(175, 185, 205, 0.95);
  line-height: 1.55;
}

.doc-frustum-diagram__legend li {
  margin: 0.28rem 0;
}

.doc-frustum-diagram__legend li:first-child {
  margin-top: 0;
}

.doc-frustum-diagram__legend-en {
  font-size: 0.78em;
  font-weight: 500;
  opacity: 0.88;
}

@media (max-width: 520px) {
  .doc-frustum-diagram__viewport {
    aspect-ratio: 16 / 9;
    min-height: 168px;
  }

  .doc-frustum-diagram__control-row--sliders .doc-frustum-diagram__field {
    flex: 1 1 100%;
  }

  .doc-frustum-diagram__caption-stack {
    padding: 0.95rem 0.85rem 1.1rem;
    gap: 0.75rem;
  }

  .doc-frustum-diagram__lead-en {
    font-size: 1rem;
  }
}