/* ═══ TABS CONTAINER ═══ */
.ren-tabs {
  container-type: inline-size;
  container-name: ren-tabs;
  display: flex;
  flex-direction: column;
  width: 100%;
}

/* ═══ TAB LIST ═══ */
.ren-tab-list {
  display: flex;
  flex-direction: row;
  gap: var(--space-2);
  border-bottom: 1px solid var(--color-border);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* Smooth scrolling for horizontal tabs */
.ren-tab-list {
  scroll-behavior: smooth;
}

/* ═══ TAB ITEM (UNDERLINE VARIANT - DEFAULT) ═══ */
.ren-tab {
  position: relative;
  padding: var(--space-2) var(--space-4);
  font-size: var(--label-md-size);
  font-weight: var(--label-md-weight);
  line-height: 1;
  color: var(--color-text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  min-height: var(--size-lg);
  display: flex;
  align-items: center;
  white-space: nowrap;
  user-select: none;
  transition: var(--transition-tactile);
}

/* Active tab */
.ren-tab[aria-selected="true"] {
  color: var(--color-text);
  border-bottom-color: var(--color-accent);
  font-weight: var(--label-lg-weight);
}

/* Tab hover state */
.ren-tab:hover:not([aria-disabled="true"]):not(:disabled) {
  color: var(--color-text);
  background-color: var(--color-fill);
}

/* Tab focus ring */
.ren-tab:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
  border-radius: var(--radius-sm);
}

/* Disabled tab */
.ren-tab:disabled,
.ren-tab[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  color: var(--color-text-muted);
}

.ren-tab:disabled:hover,
.ren-tab[aria-disabled="true"]:hover {
  background-color: transparent;
}

/* ═══ TAB PANELS ═══ */
.ren-tab-panel {
  padding-block: var(--space-4);
}

.ren-tab-panel[hidden] {
  display: none;
}

/* Panel focus ring */
.ren-tab-panel:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-md);
}

/* ═══ VARIANT: PILLS ═══ */
.ren-tab-list-pills {
  border-bottom: none;
  gap: var(--space-1);
}

.ren-tab-list-pills .ren-tab {
  border-bottom: none;
  border-radius: var(--radius-md);
  background-color: transparent;
  padding: var(--space-2) var(--space-3);
}

.ren-tab-list-pills .ren-tab[aria-selected="true"] {
  background-color: var(--color-fill);
  border-bottom-color: transparent;
  font-weight: var(--label-lg-weight);
}

.ren-tab-list-pills .ren-tab:hover:not([aria-disabled="true"]):not(:disabled) {
  background-color: var(--color-fill-hover);
}

/* ═══ VARIANT: UNDERLINE (DEFAULT) ═══ */
.ren-tab-list-underline {
  border-bottom: 1px solid var(--color-border);
  gap: var(--space-2);
}

.ren-tab-list-underline .ren-tab {
  border-bottom: 2px solid transparent;
}

.ren-tab-list-underline .ren-tab[aria-selected="true"] {
  border-bottom-color: var(--color-accent);
}

/* ═══ VARIANT: ENCLOSED ═══ */
.ren-tab-list-enclosed {
  border-bottom: none;
  gap: var(--space-2);
}

.ren-tab-list-enclosed .ren-tab {
  border: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  background-color: var(--color-fill);
  padding: var(--space-3) var(--space-4);
}

.ren-tab-list-enclosed .ren-tab[aria-selected="true"] {
  border-color: var(--color-border);
  border-bottom-color: var(--color-surface);
  background-color: var(--color-surface);
  color: var(--color-text);
  position: relative;
  z-index: 1;
}

.ren-tab-list-enclosed .ren-tab[aria-selected="true"]::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: -1px;
  right: -1px;
  height: 1px;
  background-color: var(--color-surface);
}

.ren-tab-list-enclosed .ren-tab:hover:not([aria-disabled="true"]):not(:disabled) {
  background-color: var(--color-fill-hover);
}

/* ═══ COMPACT LAYOUT (Container Query) ═══ */
@container ren-tabs (max-width: 480px) {
  .ren-tab-list {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    /* Add scrollbar styling for better UX */
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) transparent;
  }

  .ren-tab-list::-webkit-scrollbar {
    height: 4px;
  }

  .ren-tab-list::-webkit-scrollbar-track {
    background: transparent;
  }

  .ren-tab-list::-webkit-scrollbar-thumb {
    background-color: var(--color-border);
    border-radius: 2px;
  }
}

/* ═══ REDUCED MOTION ═══ */
@media (prefers-reduced-motion: reduce) {
  .ren-tab {
    transition: none;
  }
}
/* Appearance API bridge */
.ren-tabs {
  min-block-size: var(--ren-tabs-height, var(--size-lg));
  font-size: var(--ren-tabs-font-size, var(--label-size));
  font-weight: var(--ren-tabs-font-weight, var(--label-weight));
  color: var(--ren-tabs-color, var(--color-text-muted));
  border-color: var(--ren-tabs-border-color, var(--color-border));
  gap: var(--ren-tabs-gap, 0);
  transition-duration: var(--ren-tabs-duration, var(--duration-fast));
  transition-timing-function: var(--ren-tabs-easing, var(--ease-out));
}
.ren-tabs [aria-selected="true"], .ren-tabs [data-state="active"] { color: var(--ren-tabs-active-color, var(--color-text)); }
.ren-tabs [data-indicator], .ren-tabs-indicator { background: var(--ren-tabs-indicator-color, var(--color-accent)); }