/**
 * Tabs Component
 * Provides accessible, responsive tabbed interface
 */

/* Tab container */
.tabs-container {
  width: 100%;
  margin: 0 0 var(--spacing-lg);
  position: relative;
  background-color: var(--tabs-bg);
  border-bottom: 1px solid var(--tabs-border);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none; /* Hide scrollbar for Firefox */
  -ms-overflow-style: none; /* Hide scrollbar for IE/Edge */
}

/* Hide scrollbar for Chrome/Safari */
.tabs-container::-webkit-scrollbar {
  display: none;
}

/* Tabs list */
.tabs {
  display: inline-flex;
  list-style: none;
  margin: 0;
  padding: 0 var(--spacing-sm);
  min-width: 100%;
  box-sizing: border-box;
}

/* Individual tab button */
.tab-btn {
  position: relative;
  padding: var(--spacing-md) var(--spacing-lg);
  margin: 0 var(--spacing-xs);
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.5;
  white-space: nowrap;
  cursor: pointer;
  transition: var(--transition);
  outline: none;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

/* Hover state */
.tab-btn:hover:not(.active) {
  color: var(--primary-color);
  background-color: var(--tabs-hover-bg);
  border-bottom-color: var(--primary-color-30);
}

/* Active tab */
.tab-btn.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  font-weight: 600;
  background-color: var(--tabs-active-bg);
  border-top-left-radius: var(--border-radius-sm);
  border-top-right-radius: var(--border-radius-sm);
}

/* Focus state - for keyboard navigation */
.tab-btn:focus-visible {
  outline: 2px solid var(--primary-color-30);
  outline-offset: 2px;
  border-radius: var(--border-radius-sm) var(--border-radius-sm) 0 0;
  box-shadow: 0 0 0 2px var(--primary-color-20);
}

/* Tab content area */
.tab-content {
  display: none;
  padding: var(--spacing-lg) 0;
  animation: fadeIn 0.3s ease-out;
  will-change: opacity, transform;
}

/* Active tab content */
.tab-content.active {
  display: block;
}

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

/* Tab indicator (optional animation) */
.tab-indicator {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  background-color: var(--primary-color);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .tab-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
  }
}

/* Mobile styles */
@media (max-width: 768px) {
  .tabs-container {
    margin-bottom: var(--spacing-md);
    border-bottom: none;
    box-shadow: 0 1px 0 0 var(--tabs-border);
  }
  
  .tabs {
    padding: 0 var(--spacing-xs);
  }
  
  .tab-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.85rem;
    margin: 0 2px;
    border-bottom-width: 2px;
  }
  
  .tab-content {
    padding: var(--spacing-md) 0;
  }
}

/* Print styles */
@media print {
  .tabs-container {
    display: none;
  }
  
  .tab-content {
    display: block !important;
    opacity: 1 !important;
    animation: none !important;
    padding: 0 !important;
  }
}