/* Color Palette Generator - Modern Designer Tool CSS */

/* CSS Variables */
:root {
  --primary-color: #6366f1;
  --primary-hover: #5855eb;
  --secondary-color: #64748b;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  --background-color: #ffffff;
  --surface-color: #f8fafc;
  --border-color: #e2e8f0;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --transition: all 0.2s ease-in-out;
}

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--background-color);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%; /* Previene zoom automatico su iOS */
  text-size-adjust: 100%; /* Standard property */
  -webkit-tap-highlight-color: transparent; /* Rimuove highlight blu su tap */
}

/* Ottimizzazioni per touch */
button, .btn, input, select, textarea {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

input[type="color"] {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  border: none;
  cursor: pointer;
}

/* App Container */
.app-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.app-header {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
  color: white;
  padding: 1rem 0;
  box-shadow: var(--shadow-md);
  position: relative;
  z-index: 100;
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo i {
  font-size: 1.8rem;
  color: #fbbf24;
}

.header-actions {
  display: flex;
  gap: 1rem;
}

/* Main Content */
.main-content {
  flex: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
  display: grid;
  grid-template-columns: 320px 1fr 300px;
  gap: 2rem;
}

/* Control Panel */
.control-panel {
  background: var(--surface-color);
  border-radius: var(--border-radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  height: fit-content;
  position: sticky;
  top: 2rem;
}

.control-panel h2,
.control-panel h3 {
  margin-bottom: 1rem;
  color: var(--text-primary);
  font-weight: 600;
}

.generation-controls {
  margin-bottom: 2rem;
}

.mode-selector,
.base-color-input {
  margin-bottom: 1rem;
}

.mode-selector label,
.base-color-input label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background: white;
  font-size: 0.875rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.color-picker {
  width: 50px;
  height: 40px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
}

.color-picker:hover {
  box-shadow: var(--shadow-md);
}

.hex-input {
  flex: 1;
  font-family: monospace;
  text-transform: uppercase;
}

/* Buttons */
.btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--border-radius);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  justify-content: center;
}

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

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

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: white;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--surface-color);
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
}

/* Image Upload */
.image-upload {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.upload-area {
  border: 2px dashed var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background: white;
}

.upload-area:hover {
  border-color: var(--primary-color);
  background: rgba(99, 102, 241, 0.02);
}

.upload-area i {
  font-size: 2rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.upload-area p {
  color: var(--text-secondary);
  margin: 0;
}

.hidden {
  display: none !important;
}

/* Advanced Tools */
.advanced-tools {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
}

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

.tool-btn {
  padding: 0.75rem 1rem;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  text-align: left;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
}

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

.tool-btn i {
  color: var(--primary-color);
  width: 16px;
}

/* Palette Section */
.palette-section {
  background: white;
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.palette-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.palette-header h2 {
  color: var(--text-primary);
  font-weight: 600;
}

.palette-actions {
  display: flex;
  gap: 0.75rem;
}

/* Color Grid */
.color-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.color-card {
  background: white;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}

.color-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.color-swatch {
  height: 120px;
  width: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.color-actions {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  display: flex;
  gap: 0.25rem;
  opacity: 0;
  transition: var(--transition);
}

.color-card:hover .color-actions {
  opacity: 1;
}

.color-action-btn {
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  transition: var(--transition);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.color-action-btn:hover {
  background: white;
  box-shadow: var(--shadow-sm);
}

.color-action-btn.locked {
  background: var(--warning-color);
  color: white;
}

.color-info {
  padding: 1rem;
  text-align: center;
}

.color-hex {
  font-family: monospace;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.color-formats {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* HSL Controls */
.hsl-controls {
  background: var(--surface-color);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  margin-top: 1rem;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

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

.control-group label {
  min-width: 120px;
  font-weight: 500;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.slider {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: var(--border-color);
  outline: none;
  transition: var(--transition);
}

.slider::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.slider::-webkit-slider-thumb:hover {
  background: var(--primary-hover);
  box-shadow: var(--shadow-md);
}

.control-group span {
  min-width: 50px;
  text-align: right;
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.875rem;
}

/* Preview Section */
.preview-section {
  background: var(--surface-color);
  border-radius: var(--border-radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  height: fit-content;
  position: sticky;
  top: 2rem;
}

.preview-section h3 {
  margin-bottom: 1rem;
  color: var(--text-primary);
  font-weight: 600;
}

.preview-tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1rem;
  background: white;
  border-radius: var(--border-radius);
  padding: 0.25rem;
  border: 1px solid var(--border-color);
}

.tab-btn {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border: none;
  background: transparent;
  border-radius: calc(var(--border-radius) - 2px);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-secondary);
}

.tab-btn.active {
  background: var(--primary-color);
  color: white;
  box-shadow: var(--shadow-sm);
}

.preview-container {
  background: white;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  min-height: 300px;
  overflow: hidden;
}

/* Modals */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  z-index: 1000;
  animation: fadeIn 0.2s ease;
}

.modal.show {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow: hidden;
  animation: slideInUp 0.3s ease;
}

.modal-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  margin: 0;
  color: var(--text-primary);
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.modal-close:hover {
  background: var(--surface-color);
  color: var(--text-primary);
}

.modal-body {
  padding: 2rem;
  max-height: 60vh;
  overflow-y: auto;
}

.modal-large .modal-body {
  max-height: 80vh;
}

.modal-footer {
  padding: 1.5rem 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
}

/* Export Options */
.export-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

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

.export-preview {
  background: var(--surface-color);
  border-radius: var(--border-radius);
  padding: 1rem;
  border: 1px solid var(--border-color);
  min-height: 200px;
}

.export-preview pre {
  margin: 0;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.875rem;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-break: break-all;
}

/* History and Favorites Lists */
.history-list,
.favorites-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.palette-item {
  background: var(--surface-color);
  border-radius: var(--border-radius);
  padding: 1rem;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: var(--transition);
}

.palette-item:hover {
  border-color: var(--primary-color);
  background: white;
}

.palette-preview {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.palette-color {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

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

/* Contrast Analyzer */
.contrast-analyzer {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.color-pair-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.color-selector {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.contrast-results {
  background: var(--surface-color);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  border: 1px solid var(--border-color);
}

.contrast-ratio {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 1rem;
}

.wcag-results {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.wcag-result {
  text-align: center;
  padding: 1rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
}

.wcag-result.pass {
  background: rgba(16, 185, 129, 0.1);
  border-color: var(--success-color);
  color: var(--success-color);
}

.wcag-result.fail {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--error-color);
  color: var(--error-color);
}

/* Color Mixer */
.color-mixer {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.mixer-inputs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

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

.mix-ratio {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mixer-result {
  background: var(--surface-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  text-align: center;
  border: 1px solid var(--border-color);
}

.result-color {
  width: 100px;
  height: 100px;
  margin: 0 auto 1rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

/* Notification */
.notification {
  position: fixed;
  top: 2rem;
  right: 2rem;
  background: var(--success-color);
  color: white;
  padding: 1rem 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  display: none;
  align-items: center;
  gap: 1rem;
  z-index: 1001;
  animation: slideInRight 0.3s ease;
}

.notification.show {
  display: flex;
}

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

.notification.warning {
  background: var(--warning-color);
}

#notificationClose {
  background: none;
  border: none;
  color: white;
  font-size: 1.25rem;
  cursor: pointer;
  opacity: 0.8;
  transition: var(--transition);
}

#notificationClose:hover {
  opacity: 1;
}

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

@keyframes slideInUp {
  from {
    transform: translateY(30px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Responsive Design */
@media (max-width: 1200px) {
  .main-content {
    grid-template-columns: 280px 1fr;
    gap: 1.5rem;
    padding: 1.5rem;
  }
  
  .header-content {
    padding: 0 1.5rem;
  }
  
  .control-panel {
    padding: 1.25rem;
  }
  
  .preview-section {
    display: none;
  }
}

@media (max-width: 768px) {
  .main-content {
    grid-template-columns: 1fr;
    padding: 1rem;
    gap: 1rem;
  }
  
  .control-panel {
    position: static;
    padding: 1rem;
  }
  
  .color-grid {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  }
  
  .header-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
    padding: 0 1rem;
  }
  
  .header-actions {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
  }
  
  .header-actions .btn {
    padding: 0.5rem;
    font-size: 0.875rem;
  }
  
  .header-actions .btn span {
    display: none;
  }
  
  .logo {
    font-size: 1.25rem;
  }
  
  .palette-header {
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
  }
  
  .palette-actions {
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  .export-options {
    grid-template-columns: 1fr;
  }
  
  /* Ottimizzazioni controlli mobile */
  .control-group {
    margin-bottom: 1rem;
  }
  
  .control-group input,
  .control-group select {
    font-size: 16px; /* Previene zoom automatico su iOS */
    padding: 0.75rem;
    min-height: 44px; /* Apple iOS minimum touch target */
  }
  
  .btn {
    padding: 0.75rem 1rem;
    min-height: 44px;
    font-size: 0.9rem;
  }
  
  .color-card {
    min-height: 120px;
  }
  
  .color-input {
    width: 60px;
    height: 60px;
  }
  
  /* Miglior touch target per mobile */
  button, 
  .btn, 
  input[type="button"],
  input[type="submit"] {
    min-height: 44px;
    min-width: 44px;
  }
  
  .mixer-inputs {
    grid-template-columns: 1fr;
  }
}

/* Breakpoint per dispositivi molto piccoli */
@media (max-width: 480px) {
  .main-content {
    padding: 0.5rem;
    gap: 0.75rem;
  }
  
  .app-header {
    padding: 0.75rem 0;
  }
  
  .header-content {
    padding: 0 0.5rem;
  }
  
  .logo {
    font-size: 1.125rem;
  }
  
  .control-panel {
    padding: 0.75rem;
    border-radius: var(--border-radius);
  }
  
  .color-grid {
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 0.75rem;
  }
  
  .color-card {
    min-height: 100px;
  }
  
  .color-input {
    width: 50px;
    height: 50px;
  }
  
  .header-actions {
    gap: 0.25rem;
  }
  
  .header-actions .btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
  }
  
  .palette-actions .btn {
    padding: 0.5rem;
    font-size: 0.8rem;
  }
  
  /* Controlli più compatti per schermi piccoli */
  .control-group {
    margin-bottom: 0.75rem;
  }
  
  .control-group input,
  .control-group select {
    padding: 0.5rem;
    font-size: 16px;
  }
}

/* Rispetta le preferenze utente per le animazioni */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Help Modal Styles */
.help-content {
  max-width: none;
}

.help-tabs {
  display: flex;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: 2rem;
  overflow-x: auto;
}

.help-tab-btn {
  padding: 1rem 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

.help-tab-btn.active,
.help-tab-btn:hover {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
}

.help-panel {
  display: none;
}

.help-panel.active {
  display: block;
}

.help-section {
  margin-bottom: 2rem;
}

.help-section h5 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.help-section p,
.help-section ul {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.help-section ul {
  padding-left: 1.5rem;
}

.help-section li {
  margin-bottom: 0.5rem;
}

.shortcuts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.shortcut-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--surface-color);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
}

.shortcut-item kbd {
  background: var(--text-primary);
  color: white;
  padding: 0.5rem;
  border-radius: 4px;
  font-weight: 600;
  min-width: 2rem;
  text-align: center;
  font-size: 0.875rem;
}

.shortcut-item span {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Language Selector Styles */
.language-selector {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.language-selector label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
}

.language-selector select {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition);
}

.language-selector select:hover,
.language-selector select:focus {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
  outline: none;
}

.language-selector select option {
  background: var(--background-color);
  color: var(--text-primary);
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Print Styles */
@media print {
  .app-header,
  .control-panel,
  .preview-section {
    display: none !important;
  }
  
  .main-content {
    grid-template-columns: 1fr;
    max-width: none;
    padding: 0;
  }
  
  .color-grid {
    break-inside: avoid;
  }
}

/* Focus Styles for Accessibility */
*:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Sponsor Container - Simple and Clean */
.sponsor-container {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 1rem;
  margin-bottom: 2rem;
  text-align: center;
}

.sponsor-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.75rem;
  font-weight: 500;
}

.sponsor-ad {
  min-height: 250px;
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.sponsor-ad .adsbygoogle {
  width: 100%;
  height: 250px;
  display: block;
}

/* Mobile Responsive */
@media (max-width: 1200px) {
  .sponsor-container {
    margin-bottom: 1.5rem;
  }
  
  .sponsor-ad {
    min-height: 200px;
  }
  
  .sponsor-ad .adsbygoogle {
    height: 200px;
  }
}

@media (max-width: 768px) {
  .sponsor-container {
    margin-bottom: 1rem;
  }
  
  .sponsor-ad {
    min-height: 150px;
  }
  
  .sponsor-ad .adsbygoogle {
    height: 150px;
  }
}