@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@300;400;500;600&family=Silkscreen:wght@400;700&display=swap');

/**
 * styles.css
 * 
 * Layout, typography, colors for the Rule Explorer app.
 */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Design system — AutoScarf dark theme */
  --color-bg: #1a1f2e;
  --color-bg-secondary: #2a3f52;
  --color-surface: #2f3a4e;
  --color-text: #f0f0f0;
  --color-text-secondary: #a8a8a8;
  --color-heading: #f5f5f5;
  --color-accent: #5ce9f8;
  --color-accent-subtle: rgba(92, 233, 248, 0.25);
  --color-accent-hover: rgba(92, 233, 248, 0.1);
  --color-border: rgba(255, 255, 255, 0.15);

  /* Legacy alias — canvas reads this from .main-area via getComputedStyle() in Renderer.js */
  --bg-app: #2a3f52;

  /* Fonts */
  --font-display: 'Silkscreen', monospace;
  --font-body: 'IBM Plex Sans', -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  /* Spacing scale */
  --spacing-xs: 4px;
  --spacing-sm: 6px;
  --spacing-md: 8px;
  --spacing-lg: 12px;
  --spacing-xl: 16px;
  --spacing-2xl: 20px;
  --spacing-3xl: 28px;

  /* Control styling */
  --border-radius-input: 4px;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

.container {
  display: flex;
  height: 100vh;
  max-width: 1200px;
}

/* =======================
   Sidebar
   ======================= */

.sidebar {
  width: 425px;
  background-color: var(--color-bg-secondary);
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.sidebar h2 {
  font-size: 27px;
  color: var(--color-heading);
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -1px;
  padding: 20px 20px 17px;
  background-color: var(--color-bg-secondary);
  flex-shrink: 0;
}

.sidebar-scroll {
  overflow-y: auto;
  flex: 1;
  padding: 0 20px 20px;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
}

.sidebar-scroll::-webkit-scrollbar {
  width: 4px;
}

.sidebar-scroll::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-scroll::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
}

.sidebar-scroll::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.4);
}

.control-group {
  margin-bottom: var(--spacing-lg); /* default 12px */
}

/* === PRECISION SPACING — Law of Proximity ===
   Chapter 1 (pattern definition): tight groupings within, small breaks between
   Chapter 2 (visual presentation): Display/Size/Color at bottom
*/

/* Structure ↔ Neighborhood: 8px — tightly coupled, near one unit */
#structureGroup   { margin-bottom: 8px; }

/* Neighborhood ↔ Rule Code: 14px — neighborhood defines the rule space */
#neighborhoodGroup { margin-bottom: 14px; }

/* Rule Code ↔ Signals: 0px — signals is direct readout */
#ruleControlGroup { margin-bottom: 0; }

/* Signals ↔ Initial Conditions: 14px — picked rule, now pick start */
#signalsGroup     { margin-bottom: 14px; }

/* Initial Conditions ↔ Width: 14px */
#initialConditionsGroup { margin-bottom: 14px; }

/* Width ↔ Highlight Row: 8px — both grid navigation */
#widthGroup       { margin-bottom: 8px; }

/* Highlight Row ↔ Style: 20px — CHAPTER BREAK: definition → presentation */
#highlightRowGroup { margin-bottom: 14px; }

/* Style → Export: chapter break */
#styleGroup       { margin-bottom: 14px; }

/* Export: last item */
#exportGroup      { margin-bottom: 0; }

#ruleControlGroup {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--spacing-lg);
}

.rule-code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.rule-code-header > label {
  margin-bottom: 0;
}

.rule-code-header .symmetric-checkbox-row {
  margin-top: 0;
  margin-bottom: 0;
}

#ruleControlGroup .rule-input-row {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

#ruleControlGroup.three-neighborhood ~ #initialConditionsGroup {
  margin-top: var(--spacing-lg);
}

#initialConditionsGroup {
  /* margin set in precision spacing block above */
}

#neighborhoodGroup {
  display: flex;
  flex-direction: column;
}

#neighborhoodButtons {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

#neighborhoodButtons .btn-control {
  flex: 1;
}

#neighborhoodGroup .neighborhood-buttons {
  display: flex;
  gap: var(--spacing-sm);
  flex: 1;
}

#structureGroup {
  display: flex;
  flex-direction: column;
}

#structureGroup .structure-buttons {
  display: flex;
  gap: var(--spacing-sm);
}

#structureGroup .structure-buttons .btn-control {
  flex: 1;
}

/* signals-container label spacing */
.control-group:has(> .signals-container) > label {
  margin-bottom: var(--spacing-sm);
}

.control-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Checkbox and control text labels (override uppercase header) */

/* Zero out label margins inside flex header rows — gap comes from the row div instead */
.rule-code-header > label,
.initials-header-row > label:first-child {
  margin-bottom: 0 !important;
}

.checkbox-label {
  display: flex;
  flex-direction: row-reverse;
  align-items: center;
  gap: var(--spacing-xs);
  cursor: pointer;
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text-secondary);
  text-transform: none;
  letter-spacing: 0;
  margin-bottom: 0 !important;
}
.control-group input[type="range"],
.control-group select {
  width: 100%;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-input);
  font-size: 13px;
  background-color: var(--color-surface);
  color: var(--color-text);
}

.control-group input[type="number"]:focus,
.control-group input[type="range"]:focus,
.control-group select:focus {
  outline: none;
  border-color: var(--color-accent);
  background-color: var(--color-surface);
}

.control-group input[type="range"] {
  padding: 0;
  height: 6px;
  cursor: pointer;
}

/* Rule Input Row (slider with spinner buttons) */
.rule-input-row {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  flex-wrap: nowrap;
}

/* Shared control label styling */
.control-label {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text-secondary);
  text-transform: none;
  margin-bottom: 0;
  letter-spacing: 0;
}

#bestRulesGroup .control-label {
  margin-bottom: 0;
}

.control-group .control-label {
  display: inline;
  text-transform: none;
  color: var(--color-text-secondary);
  font-weight: 400;
}

.checkbox-label {
  display: flex;
  flex-direction: row-reverse;
  align-items: center;
  gap: var(--spacing-xs);
  cursor: pointer;
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text-secondary);
  text-transform: none;
  letter-spacing: 0;
  margin-bottom: 0 !important;
}

.symmetric-checkbox-row {
  margin-top: calc(var(--spacing-sm) + 2px);
  margin-bottom: 0;
}

#warmInitialsCheckboxRow {
  margin-top: var(--spacing-xs);
}

/* Initials header row: label + inline checkboxes pushed right */
.initials-header-row {
  display: flex;
  align-items: baseline;
  margin-bottom: var(--spacing-sm);
}

.initials-header-row > label:first-child {
  margin-bottom: 0;
  flex-shrink: 0;
}

.initials-checkboxes-right {
  margin-left: auto;
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.initials-header-row .checkbox-label,
.initials-checkboxes-right .checkbox-label {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text-secondary);
  text-transform: none;
  letter-spacing: 0;
  display: flex;
  flex-direction: row-reverse;
  align-items: center;
  gap: var(--spacing-xs);
  cursor: pointer;
  margin-bottom: 0 !important;
  white-space: nowrap;
}

.symmetric-checkbox-row label {
  display: flex;
  flex-direction: row-reverse;
  align-items: center;
  gap: var(--spacing-xs);
  cursor: pointer;
}

.symmetric-checkbox-row .checkbox-label {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text-secondary);
  text-transform: none;
  letter-spacing: 0;
}

input[type="checkbox"] {
  accent-color: var(--color-accent);
}

.rule-number-input {
  flex: 1;
  height: 32px;
  border: 2px solid var(--color-accent-subtle) !important;
  border-radius: var(--border-radius-input);
  font-size: 14px;
  font-family: var(--font-body);
  text-align: center;
  padding: 0 var(--spacing-sm);
  min-width: 0;
  background-color: transparent !important;
  color: var(--color-text) !important;
  -webkit-text-fill-color: var(--color-text);
  font-weight: 500;
}

.rule-number-input.active {
  background-color: rgba(92, 233, 248, 0.12) !important;
  border-color: var(--color-accent) !important;
  color: var(--color-heading) !important;
  -webkit-text-fill-color: var(--color-heading);
}

.rule-number-input:focus {
  background-color: transparent !important;
  color: var(--color-text) !important;
  -webkit-text-fill-color: var(--color-text);
  outline: none;
  border-color: var(--color-accent) !important;
}

.rule-number-input.none-value {
  border: 1px dashed var(--color-border) !important;
  background-color: var(--color-bg-secondary) !important;
  color: var(--color-text-secondary) !important;
  -webkit-text-fill-color: var(--color-text-secondary);
  font-weight: 400;
  font-style: italic;
}

.rule-number-input.none-value:focus {
  border-color: var(--color-accent) !important;
  background-color: var(--color-surface) !important;
  color: var(--color-text) !important;
  font-weight: 400;
}

/* Hide spinner arrows on number input */
.rule-number-input::-webkit-outer-spin-button,
.rule-number-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Color picker — remove inner padding so swatch fills the element (legacy, kept for safety) */
input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}
input[type="color"]::-webkit-color-swatch {
  border: 1px solid var(--color-border);
  border-radius: 1px;
}

/* Hex color text input — Coloris attaches to this; the swatch is injected before it */
.color-hex-input {
  border: none;
  background-color: transparent;
  border-radius: 0;
  font-size: 14px;
  font-family: var(--font-mono);
  color: var(--color-heading);
  font-weight: 600;
  padding: 4px 8px 4px 65px; /* left: 32px swatch + 33px OFF/ON label */
  height: 29px;
  text-align: left;
  width: 120px;
  flex: none;
  box-sizing: border-box;
  cursor: pointer;
}
.on-color-preset {
  width: 22px;
  height: 22px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  cursor: pointer;
  flex-shrink: 0;
  padding: 0;
}
.on-color-preset:hover {
  border-color: var(--color-accent);
}

.color-hex-input:focus {
  outline: none;
}

/* ── Coloris theme overrides ────────────────────────────────────────────────
   Target the popup with our sidebar's look-and-feel.
   CSS custom properties exposed by Coloris (prefix: --clr-).             */
.clr-picker {
  --clr-color-area-height: 140px;
  --clr-spacing: 6px;
  background: var(--color-bg-secondary) !important;
  border: 1px solid var(--color-border) !important;
  border-radius: 4px !important;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5) !important;
  font-family: var(--font-body) !important;
}
/* Hue/alpha sliders */
.clr-hue, .clr-alpha {
  border-radius: 4px !important;
}
/* Text input inside the picker */
input.clr-color {
  border: 1px solid var(--color-border) !important;
  border-radius: 4px !important;
  font-family: var(--font-mono) !important;
  font-size: 12px !important;
  background: var(--color-surface) !important;
  color: var(--color-text) !important;
}
input.clr-color:focus {
  outline: none !important;
  border-color: var(--color-accent) !important;
}
/* Remove any border/outline from the Coloris wrapper div — border applied here to wrap swatch+input together */
.clr-field {
  position: relative !important;
  border: 2px solid var(--color-accent) !important;
  outline: none !important;
  overflow: hidden !important;
  border-radius: var(--border-radius-input) !important;
  background-color: rgba(92, 233, 248, 0.2) !important;
}

/* OFF / ON labels overlaid inside the button, after the swatch */
.clr-field:has(#offColorHex)::before {
  content: "OFF";
  position: absolute;
  left: 38px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--color-heading);
  pointer-events: none;
  z-index: 1;
}

.clr-field:has(#onColorHex)::before {
  content: "ON";
  position: absolute;
  left: 38px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--color-heading);
  pointer-events: none;
  z-index: 1;
}

/* The small color preview swatch Coloris injects beside our input */
.clr-field button {
  border-radius: 0 !important;
  border: none !important;
  border-right: 1px solid #999999 !important;
  width: 32px !important;
  height: 100% !important;
  top: 0 !important;
  transform: none !important;
  left: 0 !important;
}

/* Coloris swatches border */
.clr-swatches button::after {
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.5) !important;
}

.btn-spinner {
  padding: 6px 6px;
  min-width: 32px;
  border: 2px solid var(--color-accent-subtle);
  background-color: transparent;
  border-radius: var(--border-radius-input);
  color: var(--color-text);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.btn-spinner:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent);
}

.btn-spinner:active {
  background-color: rgba(92, 233, 248, 0.2);
}

.rule-slider {
  flex: 1;
  height: 6px;
  max-height: 6px;
  cursor: pointer;
  padding: 0;
  margin: 0;
  min-width: 0;
  align-self: center;
}

.rule-spinner input:focus {
  outline: none;
  border-color: var(--color-accent);
  background-color: var(--color-surface);
}

.rule-spinner input.active:focus {
  border-color: var(--color-accent);
  background-color: rgba(92, 233, 248, 0.15);
}

.rule-spinner input.active {
  background-color: rgba(92, 233, 248, 0.15);
  border-color: var(--color-accent);
  color: var(--color-text);
}

.rule-input-row + .preset-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-sm);
  flex: 1;
  min-width: 0;
  margin-top: var(--spacing-lg);
}

/* Columns Input Row (slider only) */
.columns-input-row {
  display: flex;
  gap: var(--spacing-2xl);
  align-items: center;
  flex-wrap: nowrap;
}

.columns-spinner {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  width: 127px;
  flex-shrink: 0;
}

/* ========== BUTTON SYSTEM (Consolidated) ==========
   All control buttons (spinner, preset, structure, toggle) inherit from .btn-control
   Modifiers: .btn-small (spinner), .btn-wide (toggle)
   Active state: .active class
*/

.btn-control {
  padding: 6px 10px;
  border: 2px solid var(--color-accent-subtle);
  background-color: transparent;
  border-radius: var(--border-radius-input);
  color: var(--color-text);
  font-size: 14px;
  font-family: var(--font-body);
  cursor: pointer;
  transition: all 0.15s ease;
  font-weight: 500;
}

.btn-control:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent);
  transform: scale(1.03);
}

.btn-control:active {
  background-color: rgba(92, 233, 248, 0.2);
}

.btn-control.active {
  background-color: rgba(92, 233, 248, 0.2);
  border-color: var(--color-accent);
  color: var(--color-heading);
  font-weight: 600;
}

.btn-control.size-unavailable {
  opacity: 0.3;
  cursor: default;
}

/* Small buttons: ± spinner buttons */
.btn-control.btn-small {
  padding: 6px;
  min-width: 22px;
  font-weight: 600;
  white-space: nowrap;
}

/* Wide buttons: toggle buttons (full width) */
.btn-control.btn-wide {
  width: 100%;
  padding: var(--spacing-lg);
  font-size: 12px;
}

/* Standard buttons: inline structure/neighborhood buttons */
.btn-control.btn-standard {
  min-width: 70px;
  text-align: center;
  white-space: nowrap;
  padding: 6px 6px;
}

/* Inline buttons: best rules buttons */
.btn-control.btn-inline {
  min-width: 50px;
  text-align: center;
  white-space: nowrap;
  padding: 4px 6px;
  font-size: 11px;
}

#bestRulesGroup {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

#bestRulesGroup .best-rules-buttons {
  display: flex;
  flex-wrap: nowrap;
  flex: 1;
  align-items: center;
  align-content: center;
  gap: 0;
}

#bestRulesGroup .best-rules-buttons .btn-control {
  flex: 1;
  min-width: auto;
  margin-left: -1px;
}

/* Color picker row — fills full width */
.colors-row {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  margin-top: var(--spacing-md);
}

/* Swap button center-aligns with color fields */
#swapColorsBtn {
}

.color-input-wrap {
  flex: 1;
  min-width: 0;
  display: flex;
}

.color-input-wrap .clr-field {
  width: 100% !important;
}

.color-input-wrap .color-hex-input {
  width: 100% !important;
}

.structure-buttons,
.preset-buttons,
.neighborhood-buttons,
.aspect-ratio-buttons {
  display: grid;
  gap: var(--spacing-sm);
}

.structure-buttons {
  grid-template-columns: repeat(3, 1fr);
}

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

.preset-buttons {
  grid-template-columns: repeat(4, 1fr);
  margin-top: var(--spacing-md);
}

.aspect-ratio-buttons {
  grid-template-columns: repeat(5, 1fr);
  margin-top: var(--spacing-md);
}

.columns-input-row .preset-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-sm);
  flex: 1;
  min-width: 0;
}

/* Initial Conditions: Six buttons side-by-side */
.initial-conditions-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-sm);
}

/* Cell Size: Six buttons */
.cell-size-buttons {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

/* Input Fields */
.columns-spinner input {
  width: 63px !important;
  padding: 2px 6px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-input);
  font-size: 13px;
  font-family: var(--font-mono);
  background-color: var(--color-surface);
  color: var(--color-text);
  text-align: center;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

/* Hide built-in number spinner arrows */
.columns-spinner input::-webkit-outer-spin-button,
.columns-spinner input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.columns-spinner input[type="number"] {
  -moz-appearance: textfield;
}

.columns-spinner input:focus {
  outline: none;
  border-color: var(--color-accent);
  background-color: var(--color-surface);
}

.columns-spinner input.active {
  background-color: rgba(92, 233, 248, 0.15);
  border-color: var(--color-accent);
  color: var(--color-text);
}

/* Aspect Ratio Display */
#aspectRatioValue {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-left: var(--spacing-md);
}

/* Signals Container */
.signals-container {
  overflow-y: auto;
  max-height: none;
}

.signals-container svg {
  width: 100%;
  height: auto;
}

.signal-cell {
  transition: opacity 0.15s ease;
}

.signal-cell.clickable rect {
  cursor: pointer;
}

.signal-cell.clickable:hover rect {
  rx: 2;
  filter: brightness(0.95);
}

/* =======================
   Main Viewing Area
   ======================= */

.main-area {
  flex: 1;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  background-color: var(--color-bg-secondary);
  padding: 20px;
  overflow: auto;
  position: relative;
}

#canvas {
  display: block;
  image-rendering: pixelated;
}

/* Debug Neighbor Button (overlay on canvas) */
/* Admin buttons (bottom-right of canvas area) */
.admin-button {
  padding: 8px 14px;
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  width: 96px;
  min-width: 96px;
  text-align: center;
}

.admin-button:hover {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-accent);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.admin-button:active {
  background-color: rgba(92, 233, 248, 0.15);
}

/* Admin panel (upper-right overlay on canvas) */
.admin-panel {
  position: absolute;
  top: 12px;
  right: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 10;
}

.admin-file-label {
  display: block;
  cursor: pointer;
}

.admin-file-label input[type="file"] {
  display: none;
}

.admin-dropdown {
  padding: 8px;
  font-size: 12px;
  border-radius: 4px;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  width: 96px;
  min-width: 96px;
}

.admin-dropdown:hover {
  background-color: var(--color-bg-secondary);
}

/* Bottom-right admin buttons (tests, debug) */
.bottom-admin {
  position: absolute;
  right: 12px;
  z-index: 10;
}

.debug-button {
  bottom: 12px;
}

.tests-button {
  bottom: 48px;
}

.initials-button {
  bottom: 84px;
}

/* =======================
   Scrollbar Styling
   ======================= */

.sidebar::-webkit-scrollbar,
.signals-container::-webkit-scrollbar {
  width: 8px;
}

.sidebar::-webkit-scrollbar-track,
.signals-container::-webkit-scrollbar-track {
  background: var(--color-bg);
}

.sidebar::-webkit-scrollbar-thumb,
.signals-container::-webkit-scrollbar-thumb {
  background: var(--color-text-secondary);
  border-radius: 4px;
}

.sidebar::-webkit-scrollbar-thumb:hover,
.signals-container::-webkit-scrollbar-thumb:hover {
  background: var(--color-text);
}

/* =======================
   Responsive
   ======================= */

.mobile-view-toggle {
  display: none;
  position: absolute;
  top: 18px;
  right: 10px;
  gap: 4px;
  z-index: 10;
}

.mobile-toggle-btn {
  padding: 4px 12px;
  font-size: 12px;
  font-family: var(--font-body);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  cursor: pointer;
  color: var(--color-text-secondary);
}

.mobile-toggle-btn.active {
  background: rgba(92, 233, 248, 0.2);
  color: var(--color-text);
  border-color: var(--color-accent);
}

@media (max-width: 768px) {
  .container {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 3px solid var(--color-border);
    max-height: 40vh;
  }

  .sidebar h2 {
    font-size: clamp(16px, 6.5vw, 27px);
    padding: 14px 20px 12px;
  }

  .sidebar-scroll::-webkit-scrollbar {
    width: 6px;
  }

  .sidebar-scroll::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.6);
  }

  .sidebar-scroll::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.85);
  }

  .main-area {
    flex: 1;
  }

  .preset-buttons {
    grid-template-columns: repeat(4, 1fr);
  }

  .mobile-view-toggle {
    display: flex;
  }
}