/* ============================================
   DECORATIVE INTENSITY SYSTEM
   Phase 9: 6-tier decorative system (levels 0-5)

   Levels control VISIBILITY (what's shown)
   Variations control STYLE (how it looks)
   ============================================ */

/* ============================================
   1. ROOT DEFAULTS & EASING LIBRARY
   ============================================ */

:root {
  /* Easing curves */
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-sharp: cubic-bezier(0.4, 0, 0.6, 1);
}

/* ============================================
   2. LEVEL DEFINITIONS (Opacity/Intensity)
   ============================================ */

/* Level 0: None */
[data-decorative-level="0"] {
  --decorative-gradient-opacity: 0;
  --decorative-line-opacity: 0;
  --decorative-corner-opacity: 0;
  --decorative-pattern-opacity: 0;
  --decorative-mesh-opacity: 0;
}

/* Level 1: Minimal */
[data-decorative-level="1"] {
  --decorative-gradient-opacity: 0.08;
  --decorative-line-opacity: 0;
  --decorative-corner-opacity: 0;
  --decorative-pattern-opacity: 0;
  --decorative-mesh-opacity: 0;
}

/* Level 2: Subtle */
[data-decorative-level="2"] {
  --decorative-gradient-opacity: 0.15;
  --decorative-line-opacity: 0.35;
  --decorative-corner-opacity: 0.25;
  --decorative-pattern-opacity: 0;
  --decorative-mesh-opacity: 0;
}

/* Level 3: Moderate */
[data-decorative-level="3"] {
  --decorative-gradient-opacity: 0.20;
  --decorative-line-opacity: 0.45;
  --decorative-corner-opacity: 0.30;
  --decorative-pattern-opacity: 0.06;
  --decorative-mesh-opacity: 0;
}

/* Level 4: Bold */
[data-decorative-level="4"] {
  --decorative-gradient-opacity: 0.28;
  --decorative-line-opacity: 0.55;
  --decorative-corner-opacity: 0.40;
  --decorative-pattern-opacity: 0.10;
  --decorative-mesh-opacity: 0.12;
}

/* Level 5: Dramatic */
[data-decorative-level="5"] {
  --decorative-gradient-opacity: 0.38;
  --decorative-line-opacity: 0.65;
  --decorative-corner-opacity: 0.50;
  --decorative-pattern-opacity: 0.12;
  --decorative-mesh-opacity: 0.18;
}

/* ============================================
   3. DECORATIVE LAYER STRUCTURE
   ============================================ */

.decorative-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 10; /* Above .preview-canvas to show decoratives */
  overflow: hidden;

  /* Decorative colors - inherit from parent's --preview-accent */
  --decorative-line-color: var(--preview-accent, #ffd700);
  --decorative-corner-color: var(--preview-accent, #ffd700);
  --decorative-gradient-color: var(--preview-accent, #ffd700);
  --decorative-mesh-color-1: var(--preview-accent, #ffd700);
  --decorative-mesh-color-2: #ff6b6b;
}

/* ============================================
   4. BASE VISIBILITY RULES
   Hide all elements by default, show based on level
   ============================================ */

.decorative-mesh,
.decorative-gradient,
.decorative-pattern,
.decorative-corner,
.decorative-accent-line {
  display: none;
  opacity: 0;
  transition: opacity 0.3s var(--ease-smooth);
}

/* Level 1+: Gradient */
[data-decorative-level="1"] .decorative-gradient,
[data-decorative-level="2"] .decorative-gradient,
[data-decorative-level="3"] .decorative-gradient,
[data-decorative-level="4"] .decorative-gradient,
[data-decorative-level="5"] .decorative-gradient {
  display: block;
  opacity: var(--decorative-gradient-opacity);
}

/* Level 2+: Primary accent line */
[data-decorative-level="2"] .decorative-accent-line--primary,
[data-decorative-level="3"] .decorative-accent-line--primary,
[data-decorative-level="4"] .decorative-accent-line--primary,
[data-decorative-level="5"] .decorative-accent-line--primary {
  display: block;
  opacity: var(--decorative-line-opacity);
}

/* Level 3+: All four corners as content frame */
[data-decorative-level="3"] .decorative-corner,
[data-decorative-level="4"] .decorative-corner,
[data-decorative-level="5"] .decorative-corner {
  display: block;
  opacity: var(--decorative-corner-opacity);
}

/* Level 3+: Pattern overlay */
[data-decorative-level="3"] .decorative-pattern,
[data-decorative-level="4"] .decorative-pattern,
[data-decorative-level="5"] .decorative-pattern {
  display: block;
  opacity: var(--decorative-pattern-opacity);
}

/* Level 4+: Secondary accent line */
[data-decorative-level="4"] .decorative-accent-line--secondary,
[data-decorative-level="5"] .decorative-accent-line--secondary {
  display: block;
  opacity: calc(var(--decorative-line-opacity) * 0.7);
}

/* (Corners already shown at level 3+ via unified rule above) */

/* Level 4-5: Mesh gradient */
[data-decorative-level="4"] .decorative-mesh,
[data-decorative-level="5"] .decorative-mesh {
  display: block;
  opacity: var(--decorative-mesh-opacity);
}

/* ============================================
   5. ACCENT LINES (Headline Underlines)
   3 styles: solid, gradient, glow
   Fixed position: centered below headline area
   ============================================ */

.decorative-accent-line {
  position: absolute;
  pointer-events: none;
  z-index: 2;
  /* Use percentage width that scales with container, capped by variation length */
  width: min(var(--variation-line-length, 80px), 35%);
  height: var(--variation-line-thickness, 3px);
  background: var(--decorative-line-color);
  border-radius: calc(var(--variation-line-thickness, 3px) / 2);
}

/* Primary line: centered, positioned in headline area */
.decorative-accent-line--primary {
  top: 38%;
  left: 50%;
  transform: translateX(-50%);
}

/* Secondary line: hidden by default, only shown at level 4+ */
.decorative-accent-line--secondary {
  top: 42%;
  left: 50%;
  transform: translateX(-50%);
  width: min(calc(var(--variation-line-length, 80px) * 0.6), 22%);
  opacity: 0.5;
}

/* Style: solid (default) */
[data-line-style="solid"] .decorative-accent-line {
  background: var(--decorative-line-color);
}

/* Style: gradient (fade from center) */
[data-line-style="gradient"] .decorative-accent-line {
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--decorative-line-color) 20%,
    var(--decorative-line-color) 80%,
    transparent 100%
  );
}

/* Style: glow (neon effect) */
[data-line-style="glow"] .decorative-accent-line {
  background: var(--decorative-line-color);
  box-shadow:
    0 0 6px var(--decorative-line-color),
    0 0 12px color-mix(in srgb, var(--decorative-line-color) 60%, transparent),
    0 0 20px color-mix(in srgb, var(--decorative-line-color) 30%, transparent);
}

/* ============================================
   6. CORNER ACCENTS
   11 styles × 4 positions
   ============================================ */

.decorative-corner {
  position: absolute;
  pointer-events: none;
  z-index: 1;
  width: var(--variation-corner-size, 24px);
  height: var(--variation-corner-size, 24px);
}

/* Corner positions */
.decorative-corner--top-right {
  top: var(--variation-corner-inset, 24px);
  right: var(--variation-corner-inset, 24px);
}

.decorative-corner--top-left {
  top: var(--variation-corner-inset, 24px);
  left: var(--variation-corner-inset, 24px);
}

.decorative-corner--bottom-right {
  bottom: var(--variation-corner-inset, 24px);
  right: var(--variation-corner-inset, 24px);
}

.decorative-corner--bottom-left {
  bottom: var(--variation-corner-inset, 24px);
  left: var(--variation-corner-inset, 24px);
}

/* Style: bracket (default L-shape) */
[data-corner-style="bracket"] .decorative-corner--top-right {
  border-top: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-right: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
}

[data-corner-style="bracket"] .decorative-corner--top-left {
  border-top: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-left: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
}

[data-corner-style="bracket"] .decorative-corner--bottom-right {
  border-bottom: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-right: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
}

[data-corner-style="bracket"] .decorative-corner--bottom-left {
  border-bottom: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-left: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
}

/* Style: bracket-rounded */
[data-corner-style="bracket-rounded"] .decorative-corner--top-right {
  border-top: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-right: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-top-right-radius: 8px;
}

[data-corner-style="bracket-rounded"] .decorative-corner--top-left {
  border-top: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-left: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-top-left-radius: 8px;
}

[data-corner-style="bracket-rounded"] .decorative-corner--bottom-right {
  border-bottom: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-right: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-bottom-right-radius: 8px;
}

[data-corner-style="bracket-rounded"] .decorative-corner--bottom-left {
  border-bottom: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-left: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-bottom-left-radius: 8px;
}

/* Style: arc (quarter circle) */
[data-corner-style="arc"] .decorative-corner--top-right {
  border: none;
  border-top: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-right: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-radius: 0 100% 0 0;
}

[data-corner-style="arc"] .decorative-corner--top-left {
  border: none;
  border-top: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-left: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-radius: 100% 0 0 0;
}

[data-corner-style="arc"] .decorative-corner--bottom-right {
  border: none;
  border-bottom: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-right: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-radius: 0 0 100% 0;
}

[data-corner-style="arc"] .decorative-corner--bottom-left {
  border: none;
  border-bottom: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-left: var(--variation-corner-thickness, 2px) solid var(--decorative-corner-color);
  border-radius: 0 0 0 100%;
}

/* ============================================
   7. GRADIENT LAYER
   7 styles
   ============================================ */

.decorative-gradient {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: -2;
}

/* Style: radial-corner (default) */
[data-gradient-style="radial-corner"] .decorative-gradient {
  background: radial-gradient(
    ellipse 70% 70% at var(--variation-gradient-origin, bottom right),
    color-mix(in srgb, var(--decorative-gradient-color) 100%, transparent) 0%,
    transparent 70%
  );
}

/* Style: radial-center */
[data-gradient-style="radial-center"] .decorative-gradient {
  background: radial-gradient(
    ellipse 60% 60% at center,
    color-mix(in srgb, var(--decorative-gradient-color) 100%, transparent) 0%,
    transparent 70%
  );
}

/* Style: linear-diagonal */
[data-gradient-style="linear-diagonal"] .decorative-gradient {
  background: linear-gradient(
    135deg,
    transparent 40%,
    color-mix(in srgb, var(--decorative-gradient-color) 100%, transparent) 100%
  );
}

/* Style: linear-edge */
[data-gradient-style="linear-edge"] .decorative-gradient {
  background: linear-gradient(
    to top,
    color-mix(in srgb, var(--decorative-gradient-color) 100%, transparent) 0%,
    transparent 50%
  );
}

/* Style: conic */
[data-gradient-style="conic"] .decorative-gradient {
  background: conic-gradient(
    from 180deg at bottom right,
    transparent 0deg,
    color-mix(in srgb, var(--decorative-gradient-color) 100%, transparent) 45deg,
    transparent 90deg
  );
}

/* Style: mesh-dual */
[data-gradient-style="mesh-dual"] .decorative-gradient {
  background:
    radial-gradient(
      ellipse 50% 60% at 20% 80%,
      color-mix(in srgb, var(--decorative-gradient-color) 100%, transparent) 0%,
      transparent 70%
    ),
    radial-gradient(
      ellipse 40% 50% at 85% 25%,
      color-mix(in srgb, var(--decorative-mesh-color-2) 80%, transparent) 0%,
      transparent 70%
    );
}

/* Style: mesh-triple */
[data-gradient-style="mesh-triple"] .decorative-gradient {
  background:
    radial-gradient(
      ellipse 45% 55% at 15% 75%,
      color-mix(in srgb, var(--decorative-gradient-color) 100%, transparent) 0%,
      transparent 60%
    ),
    radial-gradient(
      ellipse 35% 45% at 80% 20%,
      color-mix(in srgb, var(--decorative-mesh-color-2) 70%, transparent) 0%,
      transparent 60%
    ),
    radial-gradient(
      ellipse 30% 40% at 50% 50%,
      color-mix(in srgb, var(--decorative-gradient-color) 50%, transparent) 0%,
      transparent 60%
    );
}

/* ============================================
   8. PATTERN OVERLAY
   8 types
   ============================================ */

.decorative-pattern {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

/* Type: dots */
[data-pattern-type="dots"] .decorative-pattern {
  background-image: radial-gradient(
    circle at center,
    var(--decorative-line-color) 1px,
    transparent 1px
  );
  background-size: var(--variation-pattern-scale, 20px) var(--variation-pattern-scale, 20px);
}

/* Type: diagonal-lines */
[data-pattern-type="diagonal-lines"] .decorative-pattern {
  background-image: repeating-linear-gradient(
    45deg,
    var(--decorative-line-color) 0,
    var(--decorative-line-color) 1px,
    transparent 0,
    transparent 50%
  );
  background-size: var(--variation-pattern-scale, 10px) var(--variation-pattern-scale, 10px);
}

/* Type: horizontal-lines */
[data-pattern-type="horizontal-lines"] .decorative-pattern {
  background-image: repeating-linear-gradient(
    0deg,
    transparent 0px,
    transparent calc(var(--variation-pattern-scale, 20px) - 1px),
    var(--decorative-line-color) calc(var(--variation-pattern-scale, 20px) - 1px),
    var(--decorative-line-color) var(--variation-pattern-scale, 20px)
  );
}

/* Type: grid */
[data-pattern-type="grid"] .decorative-pattern {
  background-image:
    linear-gradient(to right, var(--decorative-line-color) 1px, transparent 1px),
    linear-gradient(to bottom, var(--decorative-line-color) 1px, transparent 1px);
  background-size: var(--variation-pattern-scale, 20px) var(--variation-pattern-scale, 20px);
}

/* Type: noise (film grain) */
[data-pattern-type="noise"] .decorative-pattern {
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  mix-blend-mode: overlay;
}

/* Type: cross (plus signs) */
[data-pattern-type="cross"] .decorative-pattern {
  background-image:
    linear-gradient(var(--decorative-line-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--decorative-line-color) 1px, transparent 1px);
  background-size: 6px var(--variation-pattern-scale, 20px), var(--variation-pattern-scale, 20px) 6px;
  background-position: center;
}

/* Type: circles (concentric rings) */
[data-pattern-type="circles"] .decorative-pattern {
  background: repeating-radial-gradient(
    circle at bottom right,
    transparent 0px,
    transparent 40px,
    color-mix(in srgb, var(--decorative-line-color) 15%, transparent) 40px,
    color-mix(in srgb, var(--decorative-line-color) 15%, transparent) 41px
  );
}

/* Type: waves */
[data-pattern-type="waves"] .decorative-pattern {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 20'%3E%3Cpath d='M0 10 Q25 0 50 10 T100 10' fill='none' stroke='%23ffd700' stroke-opacity='0.3' stroke-width='1'/%3E%3C/svg%3E");
  background-size: 100px 20px;
}

/* ============================================
   9. HEADLINE TREATMENTS
   6 styles
   ============================================ */

/* Style: underline */
[data-headline-style="underline"] .preview-headline::after {
  content: '';
  display: block;
  width: min(80px, 40%);
  height: 3px;
  margin-top: 12px;
  background: var(--preview-accent);
  border-radius: 2px;
}

/* Style: underline-partial */
[data-headline-style="underline-partial"] .preview-headline::after {
  content: '';
  display: block;
  width: min(40px, 25%);
  height: 2px;
  margin-top: 10px;
  background: var(--preview-accent);
  border-radius: 1px;
}

/* Style: glow */
[data-headline-style="glow"] .preview-headline {
  text-shadow:
    0 0 20px color-mix(in srgb, var(--preview-accent) 40%, transparent),
    0 0 40px color-mix(in srgb, var(--preview-accent) 20%, transparent);
}

/* Style: gradient (text fill) */
[data-headline-style="gradient"] .preview-headline {
  background: linear-gradient(
    135deg,
    var(--preview-accent) 0%,
    var(--decorative-mesh-color-2, color-mix(in srgb, var(--preview-accent) 60%, white)) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Style: highlight */
[data-headline-style="highlight"] .preview-headline {
  background: linear-gradient(
    transparent 55%,
    color-mix(in srgb, var(--preview-accent) 20%, transparent) 55%,
    color-mix(in srgb, var(--preview-accent) 20%, transparent) 90%,
    transparent 90%
  );
}

/* ============================================
   10. MESH GRADIENT (Levels 4-5)
   ============================================ */

.decorative-mesh {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: -3;
  background:
    radial-gradient(ellipse 50% 50% at 20% 30%, var(--decorative-mesh-color-1) 0%, transparent 50%),
    radial-gradient(ellipse 40% 40% at 80% 70%, var(--decorative-mesh-color-2) 0%, transparent 50%),
    radial-gradient(ellipse 30% 30% at 60% 20%, var(--decorative-mesh-color-1) 0%, transparent 50%);
  filter: blur(40px);
}

/* ============================================
   11. LEVEL 5 ANIMATIONS
   ============================================ */

[data-decorative-level="5"] .decorative-accent-line {
  animation: line-pulse 3s ease-in-out infinite;
}

[data-decorative-level="5"] .decorative-corner {
  animation: corner-pulse 4s ease-in-out infinite;
}

@keyframes line-pulse {
  0%, 100% { opacity: var(--decorative-line-opacity); }
  50% { opacity: calc(var(--decorative-line-opacity) * 1.2); }
}

@keyframes corner-pulse {
  0%, 100% { opacity: var(--decorative-corner-opacity); }
  50% { opacity: calc(var(--decorative-corner-opacity) * 1.15); }
}

/* Respect reduced-motion preference */
@media (prefers-reduced-motion: reduce) {
  [data-decorative-level="5"] .decorative-accent-line,
  [data-decorative-level="5"] .decorative-corner {
    animation: none;
  }
}

/* ============================================
   12. WIZARD INTENSITY SELECTOR UI
   ============================================ */

.decorative-intensity-selector {
  border: none;
  padding: 0;
  margin: 0 0 16px;
}

.decorative-intensity-selector legend {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary, #888);
  margin-bottom: 12px;
}

.intensity-options {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
}

@media (max-width: 600px) {
  .intensity-options {
    grid-template-columns: repeat(3, 1fr);
  }
}

.intensity-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 6px;
  background: transparent;
  border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.15));
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.intensity-option:hover {
  border-color: var(--border-medium, rgba(255, 255, 255, 0.3));
  background: rgba(255, 255, 255, 0.03);
}

.intensity-option:has(input:checked) {
  border-color: var(--accent-gold, #ffd700);
  background: rgba(255, 215, 0, 0.08);
}

.intensity-option:focus-within {
  outline: 2px solid var(--accent-gold, #ffd700);
  outline-offset: 2px;
}

.intensity-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

/* Preview thumbnail */
.intensity-preview {
  width: 48px;
  height: 27px;
  background: var(--preview-bg-dark, #1a1a2e);
  border-radius: 4px;
  position: relative;
  overflow: hidden;
}

/* Level-specific preview styling */
.intensity-preview[data-preview-level="0"] {
  /* Empty - no decoratives */
}

.intensity-preview[data-preview-level="1"]::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at bottom right, rgba(255, 215, 0, 0.15) 0%, transparent 60%);
}

.intensity-preview[data-preview-level="2"]::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at bottom right, rgba(255, 215, 0, 0.2) 0%, transparent 60%);
}
.intensity-preview[data-preview-level="2"]::before {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 4px;
  width: 12px;
  height: 2px;
  background: rgba(255, 215, 0, 0.5);
  border-radius: 1px;
}

.intensity-preview[data-preview-level="3"]::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at bottom right, rgba(255, 215, 0, 0.25) 0%, transparent 60%);
}
.intensity-preview[data-preview-level="3"]::before {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 4px;
  width: 14px;
  height: 2px;
  background: rgba(255, 215, 0, 0.6);
  border-radius: 1px;
}

.intensity-preview[data-preview-level="4"]::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at bottom right, rgba(255, 215, 0, 0.35) 0%, transparent 60%);
}
.intensity-preview[data-preview-level="4"]::before {
  content: '';
  position: absolute;
  bottom: 3px;
  left: 4px;
  width: 16px;
  height: 2px;
  background: rgba(255, 215, 0, 0.7);
  border-radius: 1px;
  box-shadow: 0 -12px 0 rgba(255, 215, 0, 0.4);
}

.intensity-preview[data-preview-level="5"] {
  background:
    radial-gradient(ellipse at 20% 30%, rgba(255, 215, 0, 0.3) 0%, transparent 40%),
    radial-gradient(ellipse at 80% 70%, rgba(255, 100, 100, 0.2) 0%, transparent 40%),
    var(--preview-bg-dark, #1a1a2e);
}
.intensity-preview[data-preview-level="5"]::before {
  content: '';
  position: absolute;
  bottom: 3px;
  left: 4px;
  width: 18px;
  height: 3px;
  background: rgba(255, 215, 0, 0.8);
  border-radius: 1px;
  box-shadow: 0 -10px 0 rgba(255, 215, 0, 0.5);
}

/* Labels */
.intensity-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
}

.intensity-name {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-primary, #fff);
}

.intensity-number {
  font-size: 9px;
  color: var(--text-tertiary, #666);
}

/* Shuffle button */
.shuffle-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-top: 8px;
  gap: 8px;
}

.shuffle-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary, #888);
  background: transparent;
  border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.15));
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.shuffle-btn:hover {
  color: var(--text-primary, #fff);
  border-color: var(--border-medium, rgba(255, 255, 255, 0.3));
  background: rgba(255, 255, 255, 0.05);
}

.shuffle-btn svg {
  width: 14px;
  height: 14px;
}