/* ==========================================================================
   Keyboard Shortcuts Modal Styles
   ========================================================================== */

/* Modal Container */
.keyboard-shortcuts-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-modal, 1050);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md, 16px);
  animation: fadeIn 0.2s ease-out;
}

.keyboard-shortcuts-modal[aria-hidden="false"] {
  display: flex;
}

/* Modal Overlay */
.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-overlay, rgba(0, 0, 0, 0.5));
  backdrop-filter: blur(4px);
}

/* Modal Content */
.modal-content {
  position: relative;
  background: var(--bg-primary, white);
  border-radius: var(--radius-lg, 12px);
  box-shadow: 0 20px 40px var(--shadow-heavy, rgba(0, 0, 0, 0.25));
  max-width: 800px;
  max-height: 90vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: slideInUp 0.3s ease-out;
}

/* Modal Header */
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg, 24px) var(--spacing-lg, 24px) var(--spacing-md, 16px);
  border-bottom: 1px solid var(--border-secondary, #e0e0e0);
}

.modal-header h2 {
  margin: 0;
  font-size: var(--font-size-xl, 20px);
  font-weight: 600;
  color: var(--text-primary, #333);
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  padding: var(--spacing-xs, 4px);
  color: var(--text-secondary, #666);
  border-radius: var(--radius-sm, 4px);
  transition: all var(--transition-normal, 0.3s);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background-color: var(--bg-tertiary, #f5f5f5);
  color: var(--text-primary, #333);
}

.modal-close:focus {
  outline: 2px solid var(--border-focus, #2196F3);
  outline-offset: 2px;
}

/* Modal Body */
.modal-body {
  padding: var(--spacing-lg, 24px);
  overflow-y: auto;
  flex: 1;
}

/* Shortcuts Grid */
.shortcuts-grid {
  display: grid;
  gap: var(--spacing-xl, 32px);
}

/* Shortcut Categories */
.shortcut-category h3 {
  margin: 0 0 var(--spacing-md, 16px) 0;
  font-size: var(--font-size-lg, 18px);
  font-weight: 600;
  color: var(--text-primary, #333);
  border-bottom: 2px solid var(--primary-color, #2196F3);
  padding-bottom: var(--spacing-xs, 4px);
}

.shortcut-list {
  display: grid;
  gap: var(--spacing-sm, 8px);
}

/* Individual Shortcut Items */
.shortcut-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm, 8px) var(--spacing-md, 12px);
  border-radius: var(--radius-sm, 6px);
  transition: background-color var(--transition-normal, 0.3s);
  min-height: 44px; /* Touch target size */
}

.shortcut-item:hover {
  background-color: var(--bg-secondary, #f8f9fa);
}

.shortcut-item.focused {
  background-color: var(--bg-tertiary, #f0f0f0);
  outline: 2px solid var(--border-focus, #2196F3);
  outline-offset: 2px;
}

/* Shortcut Keys */
.shortcut-keys {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs, 4px);
  flex-shrink: 0;
  margin-right: var(--spacing-md, 16px);
}

.shortcut-keys kbd {
  background: var(--bg-tertiary, #f0f0f0);
  border: 1px solid var(--border-secondary, #d0d0d0);
  border-radius: var(--radius-sm, 4px);
  padding: var(--spacing-xs, 4px) var(--spacing-sm, 8px);
  font-family: var(--font-family-mono, monospace);
  font-size: var(--font-size-sm, 12px);
  font-weight: 600;
  color: var(--text-primary, #333);
  min-width: 24px;
  text-align: center;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* Shortcut Descriptions */
.shortcut-description {
  flex: 1;
  color: var(--text-secondary, #666);
  font-size: var(--font-size-sm, 14px);
  line-height: var(--line-height-normal, 1.5);
}

/* Modal Footer */
.modal-footer {
  padding: var(--spacing-md, 16px) var(--spacing-lg, 24px);
  border-top: 1px solid var(--border-secondary, #e0e0e0);
  background: var(--bg-secondary, #f8f9fa);
}

.shortcuts-tip {
  margin: 0;
  text-align: center;
  color: var(--text-secondary, #666);
  font-size: var(--font-size-sm, 14px);
}

.shortcuts-tip kbd {
  background: var(--bg-primary, white);
  border: 1px solid var(--border-secondary, #d0d0d0);
  border-radius: var(--radius-sm, 3px);
  padding: 2px 6px;
  font-family: var(--font-family-mono, monospace);
  font-size: var(--font-size-xs, 11px);
  color: var(--text-primary, #333);
}

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

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

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

.keyboard-shortcuts-modal.hiding {
  animation: fadeIn 0.2s ease-in reverse;
}

.keyboard-shortcuts-modal.hiding .modal-content {
  animation: slideOutDown 0.3s ease-in;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .keyboard-shortcuts-modal {
    padding: var(--spacing-sm, 8px);
  }
  
  .modal-content {
    max-height: 95vh;
    border-radius: var(--radius-md, 8px);
  }
  
  .modal-header {
    padding: var(--spacing-md, 16px);
  }
  
  .modal-body {
    padding: var(--spacing-md, 16px);
  }
  
  .modal-footer {
    padding: var(--spacing-sm, 8px) var(--spacing-md, 16px);
  }
  
  .shortcuts-grid {
    gap: var(--spacing-lg, 24px);
  }
  
  .shortcut-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs, 4px);
    padding: var(--spacing-md, 12px);
  }
  
  .shortcut-keys {
    margin-right: 0;
    margin-bottom: var(--spacing-xs, 4px);
  }
  
  .shortcut-keys kbd {
    font-size: var(--font-size-xs, 11px);
    padding: 2px 6px;
  }
  
  .shortcut-description {
    font-size: var(--font-size-xs, 12px);
  }
}

/* Small mobile devices */
@media (max-width: 480px) {
  .shortcuts-grid {
    gap: var(--spacing-md, 16px);
  }
  
  .shortcut-category h3 {
    font-size: var(--font-size-md, 16px);
  }
  
  .modal-header h2 {
    font-size: var(--font-size-lg, 18px);
  }
}

/* Dark Theme */
[data-theme="dark"] .keyboard-shortcuts-modal {
  /* Dark theme specific styles handled by CSS variables */
}

[data-theme="dark"] .shortcut-keys kbd {
  background: var(--bg-secondary, #2d2d2d);
  border-color: var(--border-primary, #404040);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .shortcuts-tip kbd {
  background: var(--bg-tertiary, #404040);
  border-color: var(--border-secondary, #525252);
}

/* High Contrast Theme */
[data-theme="high-contrast"] .shortcut-keys kbd {
  border: 2px solid var(--text-primary, #000);
  font-weight: 700;
}

[data-theme="high-contrast"] .modal-content {
  border: 3px solid var(--text-primary, #000);
}

/* Focus management */
.keyboard-shortcuts-modal:focus-within .modal-content {
  outline: none;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .keyboard-shortcuts-modal,
  .modal-content,
  .shortcut-item {
    animation: none;
    transition: none;
  }
  
  .modal-overlay {
    backdrop-filter: none;
  }
}

/* Print styles */
@media print {
  .keyboard-shortcuts-modal {
    display: none !important;
  }
}