/* ==========================================================================
   Tabs Component – CAAT Design System
   Depends on: tokens.css (consumes SEMANTIC tokens)
   ========================================================================== */

/* --- Wrapper --- */
.caat-tabs {
  margin-bottom: 2rem;
}

/* --- Standard Tabs (nav-tabs) --- */
.caat-tabs .nav-tabs {
  border-bottom: 2px solid var(--caat-color-border);
}

.caat-tabs .nav-tabs .nav-link {
  font-family: var(--caat-font-primary);
  font-weight: 600;
  font-size: var(--caat-font-size-sm);
  color: var(--caat-color-text);
  border: none;
  border-bottom: 3px solid transparent;
  padding: 0.75rem 1.25rem;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.caat-tabs .nav-tabs .nav-link:hover,
.caat-tabs .nav-tabs .nav-link.is-hover {
  color: var(--caat-color-text-heading);
  border-bottom-color: var(--caat-color-bg-brand-subtle);
}

.caat-tabs .nav-tabs .nav-link.active {
  color: var(--caat-color-text-heading);
  border-bottom-color: var(--caat-green, #55a546); /* selected indicator accent */
  background: transparent;
}

.caat-tabs .nav-tabs .nav-link:focus-visible,
.caat-tabs .nav-tabs .nav-link.is-focus {
  outline: 0;
  box-shadow: var(--caat-color-focus-ring);
  border-radius: 4px;
}

/* --- Pill Tabs --- */
.caat-tabs .nav-pills .nav-link {
  font-family: var(--caat-font-primary);
  font-weight: 600;
  font-size: var(--caat-font-size-sm);
  color: var(--caat-color-text);
  border-radius: 50rem;
  padding: 0.5rem 1.25rem;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.caat-tabs .nav-pills .nav-link:hover,
.caat-tabs .nav-pills .nav-link.is-hover {
  background-color: var(--caat-color-state-hover-bg);
}

.caat-tabs .nav-pills .nav-link.active {
  background-color: var(--caat-color-state-selected-bg);
  color: var(--caat-color-state-selected-text);
}

.caat-tabs .nav-pills .nav-link:focus-visible,
.caat-tabs .nav-pills .nav-link.is-focus {
  outline: 0;
  box-shadow: var(--caat-color-focus-ring);
}

/* --- Vertical Tabs --- */
.caat-tabs--vertical {
  display: flex;
  gap: 1.5rem;
}

.caat-tabs--vertical .nav-pills {
  flex-direction: column;
  min-width: 200px;
  border-right: 2px solid var(--caat-color-border);
  padding-right: 1rem;
}

.caat-tabs--vertical .nav-pills .nav-link {
  border-radius: 0.375rem;
  text-align: left;
}

.caat-tabs--vertical .tab-content {
  flex: 1;
}

/* --- Tab Content Panels --- */
.caat-tabs .tab-content {
  padding: 1.5rem 0;
}

.caat-tabs .tab-pane {
  animation: caat-tab-fade 0.2s ease-in;
}

@keyframes caat-tab-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* --- Icon in Tab --- */
.caat-tabs .nav-link .bi {
  margin-right: 0.4rem;
  font-size: 1.1em;
  vertical-align: -0.1em;
}

/* --- Responsive --- */
@media (max-width: 767.98px) {
  .caat-tabs--vertical {
    flex-direction: column;
  }

  .caat-tabs--vertical .nav-pills {
    flex-direction: row;
    flex-wrap: wrap;
    min-width: auto;
    border-right: none;
    border-bottom: 2px solid var(--caat-color-border);
    padding-right: 0;
    padding-bottom: 0.75rem;
    margin-bottom: 1rem;
  }
}