/**
 * Primary Tabs Styling
 * Styles for Drupal administrative tabs (View, Edit, Delete, Revisions)
 * Matches MSU Engineering theme colors and design system
 */

/* ==========================================================================
   Primary Tabs Container
   ========================================================================== */

.tabs-wrapper.tabs-primary {
  margin: 1.5rem 0;
  background-color: #f8f9fa;
  border-bottom: 3px solid #18453b;
  border-radius: 0;
}

/* Nav tabs container */
.tabs-wrapper.tabs-primary .nav-tabs {
  border-bottom: none;
  margin-bottom: 0;
  gap: 0;
}

/* ==========================================================================
   Tab Items (List Items)
   ========================================================================== */

.tabs-wrapper.tabs-primary .nav-item {
  margin-bottom: 0;
  position: relative;
}

/* ==========================================================================
   Tab Links
   ========================================================================== */

.tabs-wrapper.tabs-primary .nav-link {
  /* Reset Bootstrap and accessibility styles */
  padding: 0.75rem 1.5rem !important;
  min-height: auto !important;
  line-height: 1.5 !important;
  display: inline-block !important;

  /* MSU Engineering styling */
  color: #495057;
  background-color: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  border-radius: 0;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
}

/* Hover state */
.tabs-wrapper.tabs-primary .nav-link:hover {
  color: #18453b;
  background-color: #e9ecef;
  border-bottom-color: #00c24e;
  text-decoration: none;
}

/* Active state */
.tabs-wrapper.tabs-primary .nav-link.active,
.tabs-wrapper.tabs-primary .nav-link.is-active {
  color: #18453b !important;
  background-color: #ffffff;
  border-bottom-color: #00c24e;
  font-weight: 700;
}

/* Active tab item background */
.tabs-wrapper.tabs-primary .nav-item.active {
  background-color: #ffffff;
}

/* ==========================================================================
   Focus States - Accessibility
   ========================================================================== */

.tabs-wrapper.tabs-primary .nav-link:focus,
.tabs-wrapper.tabs-primary .nav-link:focus-visible {
  outline: 3px solid #18453b;
  outline-offset: -3px;
  box-shadow: 0 0 0 3px rgba(24, 69, 59, 0.25);
  z-index: 1;
}

/* ==========================================================================
   Responsive Design - Desktop (sm and up)
   ========================================================================== */

@media (min-width: 576px) {
  .tabs-wrapper.tabs-primary .nav-tabs {
    flex-direction: row;
  }

  .tabs-wrapper.tabs-primary .nav-item {
    margin-right: 0;
  }

  .tabs-wrapper.tabs-primary .nav-link {
    border-right: 1px solid #dee2e6;
  }

  .tabs-wrapper.tabs-primary .nav-item:last-child .nav-link {
    border-right: none;
  }
}

/* ==========================================================================
   Responsive Design - Mobile
   ========================================================================== */

@media (max-width: 575.98px) {
  .tabs-wrapper.tabs-primary {
    background-color: transparent;
    border-bottom: none;
  }

  .tabs-wrapper.tabs-primary .nav-tabs {
    border: 2px solid #18453b;
    border-radius: 0;
    overflow: hidden;
    flex-direction: column;
  }

  .tabs-wrapper.tabs-primary .nav-item {
    width: 100%;
  }

  .tabs-wrapper.tabs-primary .nav-link {
    width: 100%;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
    border-right: none !important;
    padding: 1rem 1.25rem !important;
  }

  .tabs-wrapper.tabs-primary .nav-item:last-child .nav-link {
    border-bottom: none;
  }

  .tabs-wrapper.tabs-primary .nav-link.active,
  .tabs-wrapper.tabs-primary .nav-link.is-active {
    background-color: #18453b;
    color: #ffffff !important;
    border-bottom-color: #18453b;
  }

  .tabs-wrapper.tabs-primary .nav-link:hover {
    background-color: #0f2b23;
    color: #ffffff;
    border-bottom-color: #dee2e6;
  }
}

/* ==========================================================================
   Secondary Tabs (if present)
   ========================================================================== */

.tabs-wrapper.tabs-secondary {
  margin: 0 0 1.5rem 0;
  background-color: #ffffff;
  border-bottom: 2px solid #dee2e6;
}

.tabs-wrapper.tabs-secondary .nav-tabs {
  border-bottom: none;
}

.tabs-wrapper.tabs-secondary .nav-link {
  padding: 0.5rem 1rem !important;
  min-height: auto !important;
  line-height: 1.5 !important;
  display: inline-block !important;
  color: #6c757d;
  border: none;
  border-bottom: 2px solid transparent;
  font-weight: 500;
  font-size: 0.875rem;
}

.tabs-wrapper.tabs-secondary .nav-link:hover {
  color: #18453b;
  background-color: #f8f9fa;
  border-bottom-color: #00c24e;
}

.tabs-wrapper.tabs-secondary .nav-link.active,
.tabs-wrapper.tabs-secondary .nav-link.is-active {
  color: #18453b !important;
  background-color: #f8f9fa;
  border-bottom-color: #18453b;
  font-weight: 600;
}

/* ==========================================================================
   High Contrast Mode
   ========================================================================== */

@media (prefers-contrast: high) {
  .tabs-wrapper.tabs-primary {
    border-bottom-width: 4px;
  }

  .tabs-wrapper.tabs-primary .nav-link {
    border-width: 2px;
  }

  .tabs-wrapper.tabs-primary .nav-link.active,
  .tabs-wrapper.tabs-primary .nav-link.is-active {
    border-bottom-width: 4px;
  }

  .tabs-wrapper.tabs-primary .nav-link:focus,
  .tabs-wrapper.tabs-primary .nav-link:focus-visible {
    outline-width: 4px;
  }
}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  .tabs-wrapper.tabs-primary .nav-link {
    transition: none;
  }
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
  .tabs-wrapper.tabs-primary,
  .tabs-wrapper.tabs-secondary {
    display: none;
  }
}