/* ==========================================================================
   AI ICON GENERATOR - STUDIO WORKSPACE & CANVAS (studio.css)
   ========================================================================== */

.studio-section {
  padding: 2rem 0 3.5rem;
}

.studio-header {
  margin-bottom: 1.75rem;
  text-align: left;
}

.studio-header-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: var(--brand-cyan);
  font-size: 0.825rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.studio-layout {
  display: grid;
  grid-template-columns: 440px 1fr;
  gap: 1.75rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  min-height: 720px;
}

/* Left Controls Panel */
.studio-controls {
  padding: 1.75rem;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-height: 850px;
  overflow-y: auto;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.control-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}

.control-label span.value-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--brand-cyan);
  background: var(--bg-tertiary);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
}

/* Prompt Input Bar */
.prompt-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.prompt-input {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 0.85rem 4rem 0.85rem 1rem;
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.prompt-input:focus {
  outline: none;
  border-color: var(--brand-violet);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
}

.btn-enhance-prompt {
  position: absolute;
  right: 0.4rem;
  top: 50%;
  transform: translateY(-50%);
  background: var(--brand-gradient);
  border: none;
  color: #FFFFFF;
  padding: 0.45rem 0.65rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: opacity 0.15s ease;
}

.btn-enhance-prompt:hover {
  opacity: 0.9;
}

/* Quick Prompt Chips */
.quick-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.chip-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 0.3rem 0.7rem;
  font-size: 0.775rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.chip-btn:hover, .chip-btn.active {
  background: rgba(99, 102, 241, 0.18);
  border-color: var(--brand-violet);
  color: var(--text-primary);
}

/* Style Presets Grid */
.style-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
}

.style-card {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.65rem 0.85rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: left;
  transition: all 0.15s ease;
}

.style-card:hover {
  border-color: var(--border-medium);
  background: var(--bg-tertiary);
}

.style-card.active {
  border-color: var(--brand-violet);
  background: rgba(99, 102, 241, 0.12);
}

.style-icon-preview {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.style-card-info h5 {
  font-size: 0.825rem;
  font-weight: 600;
  line-height: 1.2;
}

.style-card-info p {
  font-size: 0.7rem;
  color: var(--text-muted);
  line-height: 1.1;
  margin-top: 2px;
}

/* Color Pickers & Swatches */
.color-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.color-input-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.4rem 0.6rem;
}

.color-input-box input[type="color"] {
  -webkit-appearance: none;
  border: none;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: none;
}

.color-input-box input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

.color-input-box input[type="color"]::-webkit-color-swatch {
  border: 1px solid var(--border-medium);
  border-radius: 4px;
}

.color-hex-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Background Selectors */
.bg-mode-row {
  display: flex;
  gap: 0.5rem;
}

.bg-mode-btn {
  flex: 1;
  padding: 0.45rem 0.5rem;
  font-size: 0.775rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  text-align: center;
  transition: all 0.15s ease;
}

.bg-mode-btn.active {
  background: var(--bg-tertiary);
  border-color: var(--brand-violet);
  color: var(--text-primary);
  font-weight: 600;
}

/* Range Sliders */
.slider-container {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.slider-input {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--bg-primary);
  outline: none;
}

.slider-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--brand-violet);
  cursor: pointer;
  box-shadow: 0 0 8px rgba(99, 102, 241, 0.6);
  transition: transform 0.1s ease;
}

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

/* Right Studio Panel: Canvas & Actions */
.studio-stage {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--bg-primary);
  gap: 1.5rem;
}

.stage-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.stage-title-group h3 {
  font-size: 1.15rem;
  margin: 0;
}

.stage-title-group p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.stage-actions-top {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.icon-toggle-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.icon-toggle-btn:hover, .icon-toggle-btn.active {
  color: var(--text-primary);
  border-color: var(--brand-cyan);
}

/* Main Canvas Frame */
.canvas-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 360px;
  padding: 2rem;
  position: relative;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
}

.canvas-frame {
  width: 320px;
  height: 320px;
  max-width: 100%;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  border-radius: var(--radius-md);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: var(--shadow-lg);
}

.canvas-frame.checkerboard {
  background-image: linear-gradient(45deg, rgba(255, 255, 255, 0.04) 25%, transparent 25%),
                    linear-gradient(-45deg, rgba(255, 255, 255, 0.04) 25%, transparent 25%),
                    linear-gradient(45deg, transparent 75%, rgba(255, 255, 255, 0.04) 75%),
                    linear-gradient(-45deg, transparent 75%, rgba(255, 255, 255, 0.04) 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

[data-theme="light"] .canvas-frame.checkerboard {
  background-image: linear-gradient(45deg, rgba(0, 0, 0, 0.05) 25%, transparent 25%),
                    linear-gradient(-45deg, rgba(0, 0, 0, 0.05) 25%, transparent 25%),
                    linear-gradient(45deg, transparent 75%, rgba(0, 0, 0, 0.05) 75%),
                    linear-gradient(-45deg, transparent 75%, rgba(0, 0, 0, 0.05) 75%);
}

#studio-svg-container {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

#studio-svg-container svg {
  width: 100%;
  height: 100%;
  transition: all 0.15s ease;
}

/* Preset Sizes Preview Strip */
.preview-sizes-strip {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 1.5rem;
  padding: 1rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.size-preview-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.size-preview-item span {
  font-size: 0.725rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.size-box {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.size-box-16 { width: 16px; height: 16px; }
.size-box-24 { width: 24px; height: 24px; }
.size-box-48 { width: 48px; height: 48px; }
.size-box-64 { width: 64px; height: 64px; }

/* Primary Action Buttons */
.stage-actions-bottom {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
}

.btn-export {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  color: var(--text-primary);
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-export:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-medium);
  transform: translateY(-1px);
}

.btn-export-primary {
  background: var(--brand-gradient);
  border: none;
  color: #FFFFFF;
  box-shadow: var(--shadow-glow);
}

.btn-export-primary:hover {
  background: var(--brand-gradient-hover);
  color: #FFFFFF;
  box-shadow: 0 0 25px rgba(99, 102, 241, 0.5);
}

/* SVG Code Inspector Accordion */
.code-inspector {
  margin-top: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.code-inspector-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  background: var(--bg-tertiary);
  cursor: pointer;
}

.code-inspector-header h4 {
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.code-inspector-body {
  display: none;
  padding: 1rem;
  background: #060911;
}

.code-inspector.active .code-inspector-body {
  display: block;
}

.svg-code-pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.785rem;
  color: #38BDF8;
  max-height: 180px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .studio-layout {
    grid-template-columns: 1fr;
  }
  .studio-controls {
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
    max-height: none;
  }
  .stage-actions-bottom {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .studio-controls,
  .studio-stage {
    padding: 1.25rem 1rem;
  }
  .canvas-wrapper {
    padding: 1rem;
    min-height: 280px;
  }
  .canvas-frame {
    width: 250px;
    height: 250px;
  }
  .stage-actions-bottom {
    grid-template-columns: 1fr;
  }
  .style-grid {
    grid-template-columns: 1fr;
  }
}