/**
 * Keyboard Shortcuts Help Modal Styles
 * Responsive, accessible modal for displaying all keyboard shortcuts
 */

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  animation: fadeIn 0.2s ease-out;
}

.modal-overlay.show {
  opacity: 1;
  pointer-events: all;
}

/* Modal Content */
.help-modal {
  background: var(--color-bg-secondary);
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  max-width: 700px;
  width: 90%;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  transform: scale(0.9);
  transition: transform 0.3s ease;
  overflow: hidden;
  animation: scaleIn 0.2s ease-out;
}

@keyframes scaleIn {
  from {
    transform: scale(0.9);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.modal-overlay.show .help-modal {
  transform: scale(1);
}

/* Modal Header */
.help-modal .modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 25px;
  background: var(--color-brand-primary, #d32f2f);
  color: var(--color-text-inverse, white);
  border-radius: 16px 16px 0 0;
}

.help-modal .modal-header h2 {
  margin: 0;
  font-size: 1.5em;
  font-weight: 600;
}

.help-modal .modal-close {
  background: transparent;
  border: none;
  color: var(--color-text-inverse, white);
  font-size: 2em;
  cursor: pointer;
  padding: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  transition: background 0.2s ease;
}

.help-modal .modal-close:hover,
.help-modal .modal-close:focus {
  background: rgba(255, 255, 255, 0.2);
  outline: none;
}

/* Modal Body */
.help-modal .modal-body {
  padding: 25px;
  overflow-y: auto;
  flex: 1;
  background: var(--color-bg-primary);
}

/* Custom Scrollbar */
.help-modal .modal-body::-webkit-scrollbar {
  width: 8px;
}

.help-modal .modal-body::-webkit-scrollbar-track {
  background: var(--color-bg-tertiary);
  border-radius: 4px;
}

.help-modal .modal-body::-webkit-scrollbar-thumb {
  background: var(--color-text-secondary);
  border-radius: 4px;
}

.help-modal .modal-body::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-primary);
}

/* Search Input */
#helpSearchInput {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  font-size: 1em;
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
  margin-bottom: 20px;
  transition: border-color 0.2s ease;
}

#helpSearchInput:focus {
  outline: none;
  border-color: var(--color-brand-primary, #d32f2f);
}

#helpSearchInput::placeholder {
  color: var(--color-text-secondary);
  opacity: 0.7;
}

/* Shortcuts List */
.shortcuts-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Category Section */
.shortcuts-category {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.shortcuts-category-title {
  font-size: 1.2em;
  font-weight: 600;
  color: var(--color-brand-primary, #d32f2f);
  margin: 0 0 10px 0;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-border);
}

/* Shortcut Item */
.shortcut-item {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: all 0.2s ease;
}

.shortcut-item:hover {
  border-color: var(--color-brand-primary, #d32f2f);
  box-shadow: 0 2px 8px rgba(211, 47, 47, 0.1);
  transform: translateX(2px);
}

.shortcut-description {
  flex: 1;
  color: var(--color-text-primary);
  font-weight: 500;
  font-size: 0.95em;
}

.shortcut-keys-container {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-end;
}

.shortcut-keys {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.shortcut-key {
  background: var(--color-bg-tertiary, #f5f5f5);
  color: var(--color-text-primary);
  padding: 4px 8px;
  border-radius: 6px;
  font-family: 'Courier New', 'Consolas', monospace;
  font-size: 0.85em;
  font-weight: 600;
  border: 1px solid var(--color-border);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  white-space: nowrap;
}

.dark-theme .shortcut-key {
  background: #333;
  border-color: #444;
}

.shortcut-key-separator {
  color: var(--color-text-secondary);
  font-size: 0.9em;
  font-weight: bold;
}

.shortcut-label {
  font-size: 0.8em;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.shortcut-custom-badge {
  background: var(--color-warning-bg, #fff3cd);
  color: var(--color-warning, #856404);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.75em;
  font-weight: 600;
  margin-left: 6px;
  border: 1px solid var(--color-warning, #856404);
}

/* Empty State */
.shortcuts-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-secondary);
}

.shortcuts-empty-icon {
  font-size: 4em;
  margin-bottom: 16px;
  opacity: 0.3;
}

.shortcuts-empty-message {
  font-size: 1.1em;
  font-weight: 500;
  margin: 0;
}

.shortcuts-empty-hint {
  font-size: 0.9em;
  margin: 8px 0 0 0;
  opacity: 0.8;
}

/* Platform Badge */
.shortcuts-platform-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-bg-tertiary);
  padding: 8px 12px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 0.9em;
  color: var(--color-text-secondary);
}

.shortcuts-platform-icon {
  font-size: 1.2em;
}

/* Mobile Responsive (<768px) */
@media (max-width: 768px) {
  .help-modal {
    width: 100%;
    max-width: 100%;
    height: 100%;
    max-height: 100vh;
    border-radius: 0;
  }

  .help-modal .modal-header {
    border-radius: 0;
    padding: 16px 20px;
  }

  .help-modal .modal-header h2 {
    font-size: 1.3em;
  }

  .help-modal .modal-body {
    padding: 20px;
  }

  .shortcut-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .shortcut-keys-container {
    width: 100%;
    align-items: flex-start;
  }

  .shortcut-keys {
    justify-content: flex-start;
  }

  .help-modal .modal-close {
    width: 44px;
    height: 44px;
  }

  #helpSearchInput {
    font-size: 16px;
  }
}

/* Tablet Responsive (768px-1024px) */
@media (min-width: 768px) and (max-width: 1024px) {
  .help-modal {
    width: 90%;
    max-height: 85vh;
  }
}

/* Desktop (>1024px) */
@media (min-width: 1024px) {
  .help-modal {
    max-width: 700px;
  }
}

/* Animation for search results */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.shortcuts-category {
  animation: fadeIn 0.3s ease;
}

/* Focus Visible for Accessibility */
.help-modal .modal-close:focus-visible,
#helpSearchInput:focus-visible,
.help-modal .modal-close:focus,
#helpSearchInput:focus,
.shortcut-item:focus-within,
.shortcut-key:focus {
  outline: 3px solid var(--color-brand-primary, #d32f2f);
  outline-offset: 2px;
}

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

/* Skip links */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-brand-primary, #d32f2f);
  color: white;
  padding: 8px 16px;
  text-decoration: none;
  z-index: 10000;
  border-radius: 0 0 8px 0;
  font-weight: 600;
}

.skip-link:focus {
  top: 0;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  .shortcut-item {
    border-width: 2px;
  }

  .shortcut-key {
    border: 2px solid currentColor;
  }
  
  .modal-overlay {
    background: rgba(0, 0, 0, 0.9);
  }
  
  .help-modal .modal-close:focus,
  #helpSearchInput:focus {
    outline-width: 4px;
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  .modal-overlay,
  .help-modal,
  .shortcut-item,
  .shortcuts-category {
    transition: none !important;
    animation: none !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .modal-overlay {
    animation: none !important;
  }
  
  .help-modal {
    animation: none !important;
  }
  
  @keyframes fadeIn {
    from { opacity: 1; }
    to { opacity: 1; }
  }
  
  @keyframes scaleIn {
    from { transform: scale(1); opacity: 1; }
    to { transform: scale(1); opacity: 1; }
  }
}