/* Collage Tool Specific Styles */

.collage-editor {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 24px;
  margin-top: 20px;
}

.collage-left {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.collage-right {
  position: sticky;
  top: 20px;
  align-self: start;
}

.template-section,
.upload-section,
.preview-section {
  background: #fff;
  border-radius: var(--border-radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.template-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: 12px;
}

.template-item {
  aspect-ratio: 1;
  border: 2px solid var(--gray-200);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  padding: 8px;
  background: var(--gray-50);
  display: flex;
  align-items: center;
  justify-content: center;
}

.template-item:hover {
  border-color: var(--primary);
  background: #eef2ff;
}

.template-item.active {
  border-color: var(--primary);
  background: #eef2ff;
  box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.2);
}

.template-item svg {
  width: 100%;
  height: 100%;
}

.upload-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 12px;
}

.upload-cell {
  aspect-ratio: 1;
  border: 2px dashed var(--gray-300);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--gray-50);
  position: relative;
  overflow: hidden;
}

.upload-cell:hover {
  border-color: var(--primary);
  background: #eef2ff;
}

.upload-cell.has-image {
  border-style: solid;
  border-color: var(--gray-200);
}

.upload-cell input[type="file"] {
  display: none;
}

.upload-cell .upload-icon {
  width: 32px;
  height: 32px;
  color: var(--gray-400);
}

.upload-cell .upload-text {
  font-size: 0.8rem;
  color: var(--gray-500);
  text-align: center;
}

.upload-cell .upload-preview {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.upload-cell .upload-remove {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 24px;
  height: 24px;
  background: rgba(0, 0, 0, 0.5);
  border: none;
  border-radius: 50%;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s;
}

.upload-cell:hover .upload-remove {
  opacity: 1;
}

.preview-wrapper {
  background: var(--gray-50);
  border-radius: 8px;
  padding: 20px;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-canvas-container {
  background-image:
    linear-gradient(45deg, #e5e7eb 25%, transparent 25%),
    linear-gradient(-45deg, #e5e7eb 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #e5e7eb 75%),
    linear-gradient(-45deg, transparent 75%, #e5e7eb 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
  border-radius: 8px;
  padding: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 100%;
}

.preview-canvas-container canvas {
  max-width: 100%;
  max-height: 400px;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.controls-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  background: #fff;
  border-radius: var(--border-radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.control-section {
  background: var(--gray-50);
  border-radius: 8px;
  padding: 16px;
}

.control-section h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--gray-200);
}

.control-group {
  margin-bottom: 12px;
}

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

.control-label {
  display: block;
  font-size: 0.9rem;
  color: var(--gray-600);
  margin-bottom: 8px;
  font-weight: 500;
}

.ratio-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ratio-btn {
  padding: 6px 12px;
  border: 1px solid var(--gray-200);
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.15s;
}

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

.ratio-btn.active {
  border-color: var(--primary);
  background: #eef2ff;
  color: var(--primary);
  font-weight: 600;
}

.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.radio-option {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.15s;
}

.radio-option:hover {
  border-color: var(--primary);
}

.radio-option input:checked + span {
  color: var(--primary);
  font-weight: 600;
}

.radio-option input[type="radio"] {
  accent-color: var(--primary);
}

.color-pick-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.color-picker {
  width: 48px;
  height: 36px;
  border: 2px solid var(--gray-300);
  border-radius: 6px;
  cursor: pointer;
  padding: 2px;
}

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

.color-value {
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 0.9rem;
  color: var(--gray-600);
  background: var(--gray-100);
  padding: 4px 8px;
  border-radius: 4px;
}

.range-slider {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--gray-200);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.range-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.download-section {
  margin-top: 8px;
}

.download-section .btn {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.info-section {
  background: #fff;
  border-radius: var(--border-radius);
  padding: 24px;
  margin-top: 20px;
  box-shadow: var(--shadow);
}

.info-section h2 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 16px;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.info-item {
  background: var(--gray-50);
  border-radius: 8px;
  padding: 16px;
  border: 1px solid var(--gray-200);
}

.info-item h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 8px;
}

.info-item p {
  font-size: 0.85rem;
  color: var(--gray-600);
  line-height: 1.5;
}

/* Hidden */
.hidden {
  display: none !important;
}

/* Responsive */
@media (max-width: 1024px) {
  .collage-editor {
    grid-template-columns: 1fr;
  }

  .collage-right {
    position: static;
  }
}

@media (max-width: 768px) {
  .template-grid {
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
  }

  .upload-grid {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  }

  .info-grid {
    grid-template-columns: 1fr;
  }

  .ratio-options {
    gap: 6px;
  }

  .ratio-btn {
    padding: 4px 8px;
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  .template-section,
  .upload-section,
  .preview-section,
  .controls-container {
    padding: 16px;
  }

  .control-section {
    padding: 12px;
  }

  .preview-wrapper {
    min-height: 200px;
    padding: 12px;
  }

  .preview-canvas-container {
    padding: 6px;
  }

  .template-grid {
    grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
    gap: 8px;
  }

  .upload-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
}