/* T013: Component Library Styling System */
/* Modular component styles for consistent UI patterns */

/* === Button Components === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 16px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  border: none;
  color: white;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  user-select: none;
  box-shadow: var(--shadow-sm);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn:focus {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

.btn:active {
  transform: translateY(0px);
  box-shadow: var(--shadow-sm);
}

.btn--primary {
  background: var(--gradient-green);
  color: white;
  font-weight: 500;
  box-shadow: var(--shadow-md);
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
  opacity: 0.95;
}

.btn--secondary {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
  color: var(--text-primary);
  font-weight: 500;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn--secondary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  background: linear-gradient(135deg, var(--bg-tertiary), var(--border-color));
}

/* Cohesive 2-Color Design System */
/* Primary: Green gradients for main actions */
.btn-gradient-primary {
  background: linear-gradient(135deg, #22c55e, #16a34a, #15803d);
  color: white;
  font-weight: 500;
  box-shadow: var(--shadow-md);
}

/* Secondary: Gray gradients for secondary actions */
.btn-gradient-secondary {
  background: linear-gradient(135deg, #6b7280, #4b5563, #374151);
  color: white;
  font-weight: 500;
  box-shadow: var(--shadow-md);
}

/* Danger: Red for destructive actions */
.btn-gradient-danger {
  background: linear-gradient(135deg, #ef4444, #dc2626, #b91c1c);
  color: white;
  font-weight: 500;
  box-shadow: var(--shadow-md);
}

/* Legacy aliases - will be removed */
.btn-gradient-green { background: linear-gradient(135deg, #22c55e, #16a34a, #15803d); color: white; font-weight: 500; box-shadow: var(--shadow-md); }
.btn-gradient-cyan { background: linear-gradient(135deg, #6b7280, #4b5563, #374151); color: white; font-weight: 500; box-shadow: var(--shadow-md); }
.btn-gradient-red { background: linear-gradient(135deg, #ef4444, #dc2626, #b91c1c); color: white; font-weight: 500; box-shadow: var(--shadow-md); }

/* Cohesive Button Hover Effects */
.btn-gradient-primary:hover,
.btn-gradient-secondary:hover,
.btn-gradient-danger:hover,
.btn-gradient-green:hover,
.btn-gradient-cyan:hover,
.btn-gradient-red:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  opacity: 0.95;
  background-size: 110% 110%;
  animation: gradient-pulse 0.3s ease;
}

@keyframes gradient-pulse {
  0% {
    background-size: 100% 100%;
  }
  50% {
    background-size: 110% 110%;
  }
  100% {
    background-size: 110% 110%;
  }
}

.btn--ghost {
  background-color: transparent;
  border-color: transparent;
}

.btn--ghost:hover {
  background-color: var(--bg-secondary);
}

.btn--small {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.75rem;
}

.btn--large {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-base);
}

.btn--icon {
  width: 2rem;
  height: 2rem;
  padding: 0;
  border-radius: var(--radius-md);
}

.btn--disabled,
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* === Input Components === */
.input {
  display: block;
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
  color: var(--text-primary);
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.input--error {
  border-color: #ef4444;
}

.input--error:focus {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.input--small {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.75rem;
}

.input--large {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-base);
}

/* === Panel Components === */
.panel {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(8px);
}

.panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  box-shadow: var(--shadow-sm);
}

.panel__title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.panel__content {
  padding: var(--spacing-md);
}

.panel__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  border-top: 1px solid var(--border-color);
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.panel--compact .panel__header,
.panel--compact .panel__content,
.panel--compact .panel__footer {
  padding: var(--spacing-sm);
}

/* === Form Components === */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.form-help {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
}

.form-error {
  font-size: 0.75rem;
  color: #ef4444;
  margin-top: var(--spacing-xs);
}

/* === Select Components === */
.select {
  display: block;
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  border: none;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-md);
  font-weight: 500;
}

.select:focus {
  outline: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
  background: linear-gradient(135deg, var(--bg-tertiary), var(--border-color));
}

.select:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

/* === Toggle Components === */
.toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}

.toggle__input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle__track {
  position: relative;
  width: 3rem;
  height: 1.5rem;
  background-color: var(--bg-tertiary);
  border-radius: 0.75rem;
  transition: background-color 0.2s ease;
}

.toggle__thumb {
  position: absolute;
  top: 0.125rem;
  left: 0.125rem;
  width: 1.25rem;
  height: 1.25rem;
  background-color: white;
  border-radius: 50%;
  transition: transform 0.2s ease;
}

.toggle__input:checked + .toggle__track {
  background-color: var(--accent-green);
}

.toggle__input:checked + .toggle__track .toggle__thumb {
  transform: translateX(1.5rem);
}

.toggle__input:focus + .toggle__track {
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

.toggle__label {
  margin-left: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
}

/* === Divider Components === */
.divider {
  width: 1px;
  background-color: var(--border-color);
  cursor: col-resize;
  transition: background-color 0.2s ease;
}

.divider:hover {
  background-color: var(--accent-green);
}

.divider--horizontal {
  width: 100%;
  height: 1px;
  cursor: row-resize;
}

/* === Status Components === */
.status {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 8px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 12px;
  text-transform: uppercase;
  letter-spacing: 0.025em;
  box-shadow: var(--shadow-sm);
}

/* Cohesive Badge System */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 16px;
  color: white;
  box-shadow: var(--shadow-md);
}

/* Primary badges for important info */
.badge-primary {
  background: linear-gradient(135deg, #22c55e, #16a34a, #15803d);
}

/* Secondary badges for neutral info */
.badge-secondary {
  background: linear-gradient(135deg, #6b7280, #4b5563, #374151);
}

/* Legacy aliases */
.badge-gradient-purple { background: linear-gradient(135deg, #6b7280, #4b5563, #374151); }
.badge-gradient-blue { background: linear-gradient(135deg, #6b7280, #4b5563, #374151); }
.badge-gradient-teal { background: linear-gradient(135deg, #6b7280, #4b5563, #374151); }
.badge-gradient-green { background: linear-gradient(135deg, #22c55e, #16a34a, #15803d); }

.status--success {
  background-color: rgba(34, 197, 94, 0.1);
  color: var(--accent-green);
}

.status--warning {
  background-color: rgba(245, 158, 11, 0.1);
  color: #f59e0b;
}

.status--error {
  background-color: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

.status--info {
  background-color: rgba(59, 130, 246, 0.1);
  color: #3b82f6;
}

.status--neutral {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
}

/* === Toast Components === */
.toast {
  position: fixed;
  top: 1rem;
  right: 1rem;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: 1000;
  max-width: 24rem;
  animation: slideInRight 0.3s ease-out;
}

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

.toast--error {
  background-color: #ef4444;
  color: white;
}

.toast--info {
  background-color: #3b82f6;
  color: white;
}

.toast--warning {
  background-color: #f59e0b;
  color: white;
}

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

/* === Loading Components === */
.loading-spinner {
  width: 1.5rem;
  height: 1.5rem;
  border: 2px solid var(--bg-tertiary);
  border-top: 2px solid var(--accent-green);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loading-spinner--small {
  width: 1rem;
  height: 1rem;
  border-width: 1px;
}

.loading-spinner--large {
  width: 2rem;
  height: 2rem;
  border-width: 3px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* === Mobile Touch-Friendly Utilities === */
@media (max-width: 768px) {
  .btn {
    min-height: 44px; /* Apple's minimum touch target */
    min-width: 44px;
    padding: 12px 20px;
    font-size: 0.875rem;
    font-weight: 600;
    gap: 8px;
  }
  
  /* Primary buttons get more emphasis on mobile */
  .btn--primary {
    min-height: 48px;
    padding: 14px 24px;
    font-size: 0.9rem;
    font-weight: 700;
  }
  
  .btn--small {
    min-height: 36px;
    min-width: 36px;
    padding: var(--spacing-sm);
    font-size: 0.75rem;
  }
  
  .panel__header,
  .panel__content,
  .panel__footer {
    padding: var(--spacing-sm);
  }
  
  .toast {
    left: 1rem;
    right: 1rem;
    max-width: none;
  }
  
  /* Mobile input improvements */
  .input {
    min-height: 44px;
    padding: var(--spacing-md);
    font-size: 16px; /* Prevent zoom on iOS */
  }
  
  .select {
    min-height: 44px;
    padding: var(--spacing-md);
    font-size: 16px;
  }
  
  /* Touch-friendly spacing */
  .mobile-touch-spacing {
    gap: var(--spacing-md);
  }
  
  .mobile-touch-padding {
    padding: var(--spacing-md);
  }
}

/* === Accessibility Enhancements === */
.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;
}

.focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .btn {
    border-width: 2px;
  }
  
  .input,
  .select {
    border-width: 2px;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* === Function Toolbar v2 Styles === */
.function-toolbar-v2 {
  /* Container styles already handled by Tailwind */
}

.category-nav {
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

.category-nav .category-tab {
  transition: all 0.2s ease;
  border-bottom: 2px solid transparent;
}

.category-nav .category-tab.active {
  background-color: var(--bg-primary);
  border-bottom-color: var(--accent-green);
}

.function-palette {
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.function-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
}

.function-card {
  position: relative;
  padding: 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
}

.function-card:hover {
  background-color: var(--bg-secondary);
  border-color: var(--accent-green);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.function-card.active {
  background-color: var(--accent-green);
  border-color: var(--accent-green);
  color: white;
}

/* Category color variations */
.category-blue { border-left: 3px solid #3b82f6; }
.category-green { border-left: 3px solid #10b981; }
.category-purple { border-left: 3px solid #8b5cf6; }
.category-orange { border-left: 3px solid #f59e0b; }
.category-indigo { border-left: 3px solid #6366f1; }