.color-palette-generator {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --primary-color: #3a86ff;
  --text-color: #333;
  --bg-color: #f8f9fa;
  --card-bg: #fff;
  --border-color: #e0e0e0;
  --success-color: #28a745;
  --warning-color: #ffc107;
  --error-color: #dc3545;
  --text-light: #fff;
  --text-dark: #212529;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
  color: var(--text-color);
  background-color: var(--bg-color);
}

@media (prefers-color-scheme: dark) {
  .color-palette-generator {
    --text-color: #f8f9fa;
    --bg-color: #212529;
    --card-bg: #2c3034;
    --border-color: #495057;
  }
}

.generator-container {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .generator-container {
    grid-template-columns: 300px 1fr;
  }
}

.controls-panel {
  background-color: var(--card-bg);
  padding: 1.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.input-group label {
  font-weight: 600;
  font-size: 0.9rem;
}

.color-input {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.color-input input[type="color"] {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-color);
  border-radius: 0.25rem;
  cursor: pointer;
}

.color-input input[type="text"] {
  flex: 1;
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 0.25rem;
  font-family: monospace;
  background-color: var(--card-bg);
  color: var(--text-color);
}

select, input[type="range"] {
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 0.25rem;
  background-color: var(--card-bg);
  color: var(--text-color);
}

input[type="range"] {
  -webkit-appearance: none;
  height: 8px;
  background: var(--border-color);
  border-radius: 4px;
  margin: 0.5rem 0;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  background: var(--primary-color);
  border-radius: 50%;
  cursor: pointer;
}

.action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.btn {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 0.25rem;
  background-color: var(--border-color);
  color: var(--text-color);
  cursor: pointer;
  font-weight: 500;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn.primary {
  background-color: var(--primary-color);
  color: var(--text-light);
}

.palette-preview {
  background-color: var(--card-bg);
  padding: 1.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.palette-colors {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 0.5rem;
}

.color-swatch {
  height: 100px;
  border-radius: 0.25rem;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.color-swatch:hover {
  transform: scale(1.05);
  z-index: 1;
}

.color-swatch .color-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.5rem;
  background-color: rgba(0, 0, 0, 0.7);
  color: white;
  font-family: monospace;
  font-size: 0.8rem;
  display: flex;
  justify-content: space-between;
}

.color-swatch .copy-btn {
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  font-size: 0.8rem;
}

.palette-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.manual-controls {
  background-color: var(--card-bg);
  padding: 1.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.manual-colors {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.manual-color {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.manual-color input[type="color"] {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-color);
  border-radius: 0.25rem;
  cursor: pointer;
}

.manual-color input[type="text"] {
  flex: 1;
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 0.25rem;
  font-family: monospace;
  background-color: var(--card-bg);
  color: var(--text-color);
}

.manual-color .remove-btn {
  background-color: var(--error-color);
  color: white;
  border: none;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background-color: var(--card-bg);
  padding: 1.5rem;
  border-radius: 0.5rem;
  width: 90%;
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.export-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.export-option {
  padding: 0.5rem 1rem;
  background-color: var(--border-color);
  border: none;
  border-radius: 0.25rem;
  cursor: pointer;
}

.export-output {
  width: 100%;
  min-height: 150px;
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 0.25rem;
  font-family: monospace;
  background-color: var(--card-bg);
  color: var(--text-color);
  resize: none;
}

.contrast-results {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contrast-pair {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.contrast-swatches {
  display: flex;
}

.contrast-swatch {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

.contrast-score {
  min-width: 80px;
  text-align: center;
  font-weight: bold;
}

.palette-history {
  margin-top: 2rem;
  background-color: var(--card-bg);
  padding: 1.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.history-items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.history-item {
  cursor: pointer;
  transition: transform 0.2s ease;
}

.history-item:hover {
  transform: scale(1.05);
}

.history-swatches {
  display: flex;
  height: 30px;
  border-radius: 0.25rem;
  overflow: hidden;
}

.history-swatch {
  flex: 1;
}

.history-label {
  margin-top: 0.25rem;
  font-size: 0.8rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hidden {
  display: none;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-content {
  animation: slideUp 0.3s ease;
}

.color-swatch {
  animation: fadeIn 0.3s ease;
}

/* Tooltip */
.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background-color: #333;
  color: white;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.8rem;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
  z-index: 10;
}

.tooltip:hover::after {
  opacity: 1;
  visibility: visible;
  bottom: calc(100% + 5px);
}