/* ==========================================================================
   Color Palette Generator - Tool-specific styles
   Extends Atelier Design System
   ========================================================================== */

/* ---------- Color Input Controls ---------- */
.color-input-wrapper {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  margin-top: 0.5rem;
}

.color-picker {
  width: 4rem;
  height: 2.5rem;
  border: none;
  border-radius: 0.375rem;
  cursor: pointer;
  background: none;
}

.color-picker::-webkit-color-swatch-wrapper {
  padding: 0;
}

.color-picker::-webkit-color-swatch {
  border: 2px solid var(--border-default);
  border-radius: 0.375rem;
}

.hex-input {
  flex: 1;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  color: var(--text-primary);
  font-family: monospace;
  font-size: 0.875rem;
  text-transform: uppercase;
}

.hex-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-ring);
}

/* ---------- Settings Grid ---------- */
.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

@media (max-width: 640px) {
  .settings-grid {
    grid-template-columns: 1fr;
  }
}

.setting-item {
  position: relative;
}

.setting-item label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-primary);
}

.form-select {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  color: var(--text-primary);
  font-size: 0.875rem;
}

.form-select:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-ring);
}

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

/* ---------- Action Buttons ---------- */
.action-buttons {
  margin-top: 2rem;
  text-align: center;
}

.btn-icon {
  margin-right: 0.5rem;
}

/* ---------- Image Upload Zone ---------- */
.image-upload-zone {
  position: relative;
  border: 2px dashed var(--border-default);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  background: var(--bg-secondary);
}

.image-upload-zone:hover {
  border-color: var(--accent-primary);
  background: var(--bg-tertiary);
}

.image-upload-zone.drag-active {
  border-color: var(--accent-primary);
  background: var(--bg-tertiary);
}

.upload-content {
  position: relative;
  z-index: 2;
}

.upload-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  opacity: 0.7;
}

.upload-text {
  font-size: 1.125rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.upload-subtext {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* ---------- Pro Overlay ---------- */
.pro-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 3;
}

.pro-lock {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.pro-overlay p {
  color: var(--color-warning);
  font-weight: 500;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Hidden when Pro is unlocked (class toggled by JS) */
.pro-overlay--hidden,
.pro-unlocked .pro-overlay {
  display: none !important;
}

/* ---------- Palette Display ---------- */
.palette-container {
  margin-top: 1.5rem;
}

.palette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.color-swatch {
  position: relative;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.2s ease;
}

.color-swatch:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  border-color: var(--text-muted);
}

.color-preview {
  width: 100%;
  height: 6rem;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background-color: var(--swatch-color, var(--bg-tertiary));
}

.color-info {
  padding: 1rem;
}

.color-label {
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  font-size: 0.875rem;
}

.color-value {
  font-family: monospace;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.color-formats {
  display: flex;
  gap: 0.5rem;
}

.format-btn {
  background: var(--bg-secondary);
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.5rem;
  color: var(--text-secondary);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.format-btn:hover {
  background: var(--color-surface-hover);
  color: var(--text-primary);
}

.copy-feedback {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--color-background);
  color: var(--color-success);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 10;
}

.copy-feedback.show {
  opacity: 1;
}

/* ---------- Export Options ---------- */
.export-options {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-default);
}

.export-formats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.btn-export {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
}

.btn-export:hover {
  background: var(--color-surface-hover);
  border-color: var(--text-muted);
  transform: translateY(-1px);
}

/* ---------- Palette History ---------- */
.palette-history {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-default);
}

.history-grid {
  margin-top: 1rem;
}

.history-item {
  display: flex;
  align-items: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-bottom: 0.75rem;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.history-item:hover {
  background: var(--color-surface-hover);
  border-color: var(--text-muted);
  transform: translateX(4px);
}

.history-colors {
  display: flex;
  gap: 0.25rem;
  margin-right: 1rem;
}

.history-color {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-default);
  background-color: var(--swatch-color, var(--bg-tertiary));
}

.history-info {
  flex: 1;
}

.history-name {
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.history-meta {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.history-delete {
  background: none;
  border: none;
  color: var(--color-error);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0.25rem;
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease;
  margin-left: 0.5rem;
}

.history-delete:hover {
  background: rgba(239, 68, 68, 0.1);
}

/* ---------- Toast Notifications ---------- */
.toast {
  position: fixed;
  top: 2rem;
  right: 2rem;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-weight: 500;
  z-index: 1000;
  opacity: 0;
  transform: translateX(100%);
  transition: all 0.3s ease;
  max-width: 300px;
}

.toast.show {
  opacity: 1;
  transform: translateX(0);
}

.toast-success {
  background: var(--color-success);
}

.toast-error {
  background: var(--color-error);
}

/* ---------- Pro Badge ---------- */
.pro-badge {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: linear-gradient(135deg, var(--color-warning), var(--color-warning));
  color: var(--color-background);
  font-size: 0.625rem;
  font-weight: 700;
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

/* ---------- Empty States ---------- */
.empty-state {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--text-secondary);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state-text {
  font-size: 1rem;
  line-height: 1.5;
}

/* ---------- Output Actions ---------- */
.output-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.output-actions .btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ---------- Body Modal State ---------- */
body.modal-open {
  overflow: hidden;
}



/* ---------- Responsive Design ---------- */
@media (max-width: 768px) {
  .color-input-wrapper {
    flex-direction: column;
    align-items: stretch;
  }
  
  .color-picker {
    align-self: center;
  }
  
  .export-formats {
    grid-template-columns: 1fr;
  }
  
  .output-actions {
    flex-direction: column;
  }
  
  .palette-grid {
    grid-template-columns: 1fr;
  }
  
  .history-item {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }
  
  .history-colors {
    margin-right: 0;
    margin-bottom: 0.75rem;
  }
  
  .history-delete {
    position: absolute;
    top: 1rem;
    right: 1rem;
    margin-left: 0;
  }
}