/* ========== CSS Shadow Generator Tool ========== */
/* Catppuccin Dark Theme CSS Variables */
:root {
  --color-primary: #1e66f5;
  --color-primary-hover: #1e60e0;
  --color-bg-card: #ffffff;
  --color-border: #ccd0da;
  --color-heading: #1e1e2e;
  --color-text: #4c4f69;
  --color-muted: #6c6f85;
  --color-bg-hover: #e6e9ef;
  --color-success: #40a02b;
  --color-error: #d20f39;
  --color-btn-hover: #ccd0da;
  --color-code-bg: #f2f3f5;
  --color-accent-pink: #ea76cb;
  --color-accent-yellow: #df8e1d;
  --color-accent-green: #40a02b;
  --color-accent-peach: #fe640b;
  --color-surface: #ffffff;
  --color-overlay: #f2f3f5;
  --color-layer-bg: #e6e9ef;
  --color-tag-bg: #e6e9ef;
  --color-tag-active: #1e66f5;
  --color-tag-text: #4c4f69;
  --color-card-shadow: rgba(0,0,0,0.08);
}

/* Light theme */
body.light-theme {
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-bg-card: #ffffff;
  --color-border: #e2e8f0;
  --color-heading: #1e293b;
  --color-text: #475569;
  --color-muted: #94a3b8;
  --color-bg-hover: #f1f5f9;
  --color-success: #16a34a;
  --color-error: #dc2626;
  --color-btn-hover: #e2e8f0;
  --color-code-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-overlay: #f1f5f9;
  --color-layer-bg: #f8fafc;
  --color-tag-bg: #f1f5f9;
  --color-tag-active: #2563eb;
  --color-tag-text: #475569;
  --color-card-shadow: rgba(0,0,0,0.08);
}

.tool-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

.tool-header {
  text-align: center;
  margin-bottom: 24px;
}

.tool-header h1 {
  font-size: 32px;
  font-weight: 800;
  color: var(--color-heading);
  margin-bottom: 8px;
}

.tool-header .tool-desc {
  font-size: 16px;
  color: var(--color-muted);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Toolbar */
.tool-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 16px;
  padding: 14px;
  background: var(--color-bg-card);
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  background: var(--color-bg-hover);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.tool-btn:hover {
  background: var(--color-btn-hover);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.tool-btn.active {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

.tool-btn.danger {
  border-color: var(--color-error);
  color: var(--color-error);
}

.tool-btn.danger:hover {
  background: var(--color-error);
  color: #ffffff;
}

.tool-btn.success {
  border-color: var(--color-success);
  color: var(--color-success);
}

.tool-btn.success:hover {
  background: var(--color-success);
  color: #ffffff;
}

.tool-btn.small {
  padding: 3px 8px;
  font-size: 11px;
}

/* Style Tags */
.tool-style-tags {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 10px 14px;
  margin-bottom: 12px;
  background: var(--color-bg-card);
  border-radius: 12px;
  border: 1px solid var(--color-border);
  scrollbar-width: thin;
}

.tool-style-tags::-webkit-scrollbar {
  height: 4px;
}

.tool-style-tags::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 2px;
}

.style-tag {
  flex-shrink: 0;
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 600;
  background: var(--color-tag-bg);
  color: var(--color-tag-text);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.style-tag:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.style-tag.active {
  background: var(--color-tag-active);
  color: #ffffff;
  border-color: var(--color-tag-active);
}

/* Preset Select */
.tool-preset-row {
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--color-bg-card);
  border-radius: 12px;
  border: 1px solid var(--color-border);
}

.tool-preset-row label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-heading);
  flex-shrink: 0;
}

.tool-preset-row select {
  flex: 1;
  padding: 6px 10px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 12px;
  background: var(--color-overlay);
  color: var(--color-text);
  max-width: 300px;
}

/* Preview Area */
.tool-preview-area {
  position: relative;
  height: 300px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  margin-bottom: 16px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f0f0f0;
}

.tool-preview-box {
  width: 200px;
  height: 200px;
  border-radius: 8px;
  background: #ffffff;
  position: relative;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.tool-preview-box.hover-animate:hover {
  transform: translateY(-4px);
}

/* Main Layout */
.tool-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 16px;
}

/* Control Panel */
.tool-controls {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 20px;
  max-height: 900px;
  overflow-y: auto;
}

.tool-controls::-webkit-scrollbar {
  width: 6px;
}

.tool-controls::-webkit-scrollbar-track {
  background: transparent;
}

.tool-controls::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}

.tool-controls h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--color-border);
}

/* Control Row */
.control-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.control-row:last-child {
  margin-bottom: 0;
}

.control-row label {
  font-size: 12px;
  color: var(--color-text);
  min-width: 60px;
  flex-shrink: 0;
}

.control-row .label-sm {
  min-width: 30px;
  font-size: 11px;
  text-align: center;
}

.control-row input[type="range"] {
  flex: 1;
  min-width: 60px;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--color-border);
  border-radius: 2px;
  outline: none;
}

.control-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 2px solid var(--color-bg-card);
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.control-row input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 2px solid var(--color-bg-card);
}

.control-row input[type="number"] {
  width: 55px;
  padding: 4px 6px;
  border: 1px solid var(--color-border);
  border-radius: 5px;
  font-size: 11px;
  background: var(--color-overlay);
  color: var(--color-text);
  text-align: center;
}

.control-row input[type="number"]:focus {
  outline: none;
  border-color: var(--color-primary);
}

.control-row input[type="color"] {
  width: 30px;
  height: 30px;
  padding: 1px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  cursor: pointer;
  background: none;
}

.control-row .color-value {
  font-size: 11px;
  color: var(--color-muted);
  font-family: monospace;
  min-width: 55px;
}

.control-row .opacity-value {
  font-size: 11px;
  color: var(--color-muted);
  min-width: 30px;
  text-align: center;
}

.control-row input[type="checkbox"] {
  accent-color: var(--color-primary);
  cursor: pointer;
}

.control-row select {
  padding: 4px 8px;
  border: 1px solid var(--color-border);
  border-radius: 5px;
  font-size: 11px;
  background: var(--color-overlay);
  color: var(--color-text);
}

/* Right Panel */
.tool-right-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tool-right-panel .control-section {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 16px;
}

.tool-right-panel .control-section h3 {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--color-border);
}

/* Layer Cards */
.tool-layers-section {
  margin-bottom: 16px;
}

.tool-layers-section h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.layer-card {
  background: var(--color-layer-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 12px;
  margin-bottom: 8px;
  position: relative;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.layer-card.drag-over {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(137, 180, 250, 0.2);
}

.layer-card.dragging {
  opacity: 0.5;
}

.layer-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.layer-drag-handle {
  cursor: grab;
  font-size: 14px;
  color: var(--color-muted);
  user-select: none;
  padding: 2px 4px;
  border-radius: 4px;
}

.layer-drag-handle:hover {
  color: var(--color-text);
  background: var(--color-bg-hover);
}

.layer-drag-handle:active {
  cursor: grabbing;
}

.layer-card-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-heading);
  flex: 1;
}

.layer-delete-btn {
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
  background: transparent;
  color: var(--color-error);
  border: 1px solid var(--color-error);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

.layer-delete-btn:hover {
  background: var(--color-error);
  color: #ffffff;
}

.layer-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 12px;
}

.layer-control-row {
  display: flex;
  align-items: center;
  gap: 4px;
}

.layer-control-row label {
  font-size: 10px;
  color: var(--color-muted);
  min-width: 20px;
  flex-shrink: 0;
}

.layer-control-row input[type="range"] {
  flex: 1;
  min-width: 40px;
  height: 3px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--color-border);
  border-radius: 2px;
  outline: none;
}

.layer-control-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 1px solid var(--color-bg-card);
}

.layer-control-row input[type="range"]::-moz-range-thumb {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 1px solid var(--color-bg-card);
}

.layer-control-row input[type="number"] {
  width: 40px;
  padding: 2px 4px;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  font-size: 10px;
  background: var(--color-overlay);
  color: var(--color-text);
  text-align: center;
}

.layer-control-row input[type="color"] {
  width: 22px;
  height: 22px;
  padding: 1px;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  cursor: pointer;
  background: none;
}

.layer-control-row .layer-color-val {
  font-size: 9px;
  color: var(--color-muted);
  font-family: monospace;
  min-width: 40px;
}

.layer-control-row input[type="checkbox"] {
  accent-color: var(--color-primary);
  cursor: pointer;
  width: 12px;
  height: 12px;
}

.add-layer-btn {
  width: 100%;
  padding: 8px;
  font-size: 12px;
  font-weight: 600;
  background: var(--color-bg-hover);
  color: var(--color-primary);
  border: 1px dashed var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.add-layer-btn:hover {
  background: var(--color-btn-hover);
  border-color: var(--color-primary);
}

/* HSL Sliders */
.hsl-controls {
  display: none;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--color-border);
}

.hsl-controls.visible {
  display: block;
}

.hsl-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}

.hsl-row label {
  font-size: 11px;
  color: var(--color-muted);
  min-width: 18px;
  font-weight: 600;
}

.hsl-row input[type="range"] {
  flex: 1;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  border-radius: 2px;
  outline: none;
}

.hsl-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 2px solid var(--color-bg-card);
}

.hsl-row input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 2px solid var(--color-bg-card);
}

.hsl-row .hsl-val {
  font-size: 10px;
  color: var(--color-muted);
  min-width: 28px;
  text-align: right;
  font-family: monospace;
}

#hue-slider { background: linear-gradient(to right, #f00, #ff0, #0f0, #0ff, #00f, #f0f, #f00); }
#sat-slider { background: linear-gradient(to right, #808080, #f00); }
#lig-slider { background: linear-gradient(to right, #000, #808080, #fff); }

/* Hierarchical Shadow Output */
.shadow-levels-output {
  display: none;
  margin-top: 8px;
}

.shadow-levels-output.visible {
  display: block;
}

.shadow-level-group {
  margin-bottom: 10px;
}

.shadow-level-group h4 {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 4px;
}

.shadow-level-group pre {
  background: var(--color-code-bg);
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  color: var(--color-text);
  overflow-x: auto;
  border: 1px solid var(--color-border);
  white-space: pre-wrap;
  word-break: break-all;
}

/* Code Output */
.tool-code-section {
  margin-bottom: 16px;
}

.tool-code-section h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tool-code-section pre {
  background: var(--color-code-bg);
  padding: 16px;
  border-radius: 10px;
  font-size: 13px;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  color: var(--color-text);
  overflow-x: auto;
  border: 1px solid var(--color-border);
  max-height: 300px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

.tool-code-section code {
  font-family: inherit;
}

/* Info Section */
.tool-info {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 24px;
  margin-top: 16px;
}

.tool-info h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 12px;
}

.tool-info h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-heading);
  margin-top: 20px;
  margin-bottom: 8px;
}

.tool-info p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 10px;
}

.tool-info ul {
  margin: 8px 0 12px 20px;
}

.tool-info li {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.8;
}

.tool-info code {
  background: var(--color-code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  color: var(--color-primary);
}

.tool-info .info-tip {
  background: var(--color-bg-hover);
  border-left: 3px solid var(--color-primary);
  padding: 12px 16px;
  border-radius: 0 8px 8px 0;
  margin-top: 12px;
  font-size: 13px;
  color: var(--color-text);
  line-height: 1.6;
}

/* Status message */
.tool-status {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  z-index: 9999;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  pointer-events: none;
}

.tool-status.show {
  opacity: 1;
  transform: translateY(0);
}

.tool-status.success {
  background: var(--color-success);
  color: #ffffff;
}

.tool-status.error {
  background: var(--color-error);
  color: #ffffff;
}

/* Responsive */
@media (max-width: 900px) {
  .tool-layout {
    grid-template-columns: 1fr;
  }
  .tool-controls {
    max-height: none;
  }
  .tool-header h1 {
    font-size: 26px;
  }
}

@media (max-width: 600px) {
  .tool-container {
    padding: 12px;
  }
  .tool-header h1 {
    font-size: 20px;
  }
  .tool-header .tool-desc {
    font-size: 13px;
  }
  .tool-toolbar {
    gap: 5px;
    padding: 10px;
  }
  .tool-btn {
    font-size: 10px;
    padding: 4px 8px;
  }
  .tool-preview-area {
    height: 220px;
  }
  .tool-preview-box {
    width: 140px;
    height: 140px;
  }
  .control-row label {
    min-width: 40px;
    font-size: 11px;
  }
  .control-row input[type="number"] {
    width: 45px;
  }
  .layer-controls {
    grid-template-columns: 1fr;
  }
}


/* RTL override for info-tip: use right border */
[dir="rtl"] .tool-info .info-tip {
  border-left: none;
  border-right: 3px solid var(--color-primary);
  border-radius: 8px 0 0 8px;
}

/* RTL override for tool-status */
[dir="rtl"] .tool-status {
  right: auto;
  left: 20px;
}