/* ==========================================================================
   PEPTIDESTX DESIGN SYSTEM — BREADCRUMBS, PAGINATION, TABS, ACCORDION
   ========================================================================== */

/* ---------------------------------------------------------------------
   BREADCRUMBS
   --------------------------------------------------------------------- */

.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 13px;
}

.breadcrumbs__item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumbs__link {
  color: var(--color-graphite-500);
  transition: color var(--dur-fast) var(--ease-out);
}

.breadcrumbs__link:hover {
  color: var(--color-royal-violet);
}

.breadcrumbs__current {
  color: var(--color-obsidian);
  font-weight: 500;
}

.breadcrumbs__separator {
  color: var(--color-graphite-border-light-strong);
  width: 12px;
  height: 12px;
}

/* ---------------------------------------------------------------------
   PAGINATION
   --------------------------------------------------------------------- */

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.pagination__btn {
  min-width: 40px;
  height: 40px;
  padding: 0 var(--space-3);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-graphite-500);
  transition: border-color var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out), background-color var(--dur-base) var(--ease-out);
}

.pagination__btn:hover:not(:disabled) {
  border-color: var(--color-graphite-border-light-strong);
  color: var(--color-obsidian);
}

.pagination__btn.is-current {
  background: var(--color-obsidian);
  color: var(--color-white);
}

.pagination__btn:disabled {
  color: var(--color-graphite-300);
  cursor: not-allowed;
}

.pagination__btn--nav {
  display: flex;
  align-items: center;
  justify-content: center;
}

.pagination__btn--nav svg {
  width: 16px;
  height: 16px;
}

.pagination__ellipsis {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-graphite-300);
  font-family: var(--font-mono);
  font-size: 14px;
}

/* ---------------------------------------------------------------------
   TABS
   --------------------------------------------------------------------- */

.tabs__list {
  display: flex;
  gap: var(--space-8);
  border-bottom: 1px solid var(--color-graphite-border-light);
  overflow-x: auto;
}

.tabs__tab {
  position: relative;
  padding: var(--space-4) 0;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 15px;
  color: var(--color-graphite-500);
  white-space: nowrap;
  transition: color var(--dur-base) var(--ease-out);
}

.tabs__tab:hover {
  color: var(--color-obsidian);
}

.tabs__tab::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 2px;
  background: var(--color-royal-violet);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease-out-expo);
}

.tabs__tab[aria-selected="true"] {
  color: var(--color-obsidian);
}

.tabs__tab[aria-selected="true"]::after {
  transform: scaleX(1);
}

.tabs__panel {
  padding-top: var(--space-8);
}

.tabs__panel[hidden] {
  display: none;
}

@media (max-width: 480px) {
  .tabs__list {
    gap: var(--space-6);
  }
}

/* ---------------------------------------------------------------------
   ACCORDION (generic — used for FAQ, PDP spec details, footer mobile)
   --------------------------------------------------------------------- */

.accordion__item {
  border-bottom: 1px solid var(--color-graphite-border-light);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-6);
  background: none;
  border: none;
  text-align: left;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 16px;
  color: var(--color-obsidian);
}

.accordion__icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-graphite-500);
  transition: transform var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out);
}

.accordion__trigger[aria-expanded="true"] .accordion__icon {
  transform: rotate(45deg);
  color: var(--color-royal-violet);
}

.accordion__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur-mid) var(--ease-out);
}

.accordion__item.is-open .accordion__panel {
  grid-template-rows: 1fr;
}

.accordion__panel-inner {
  overflow: hidden;
}

.accordion__content {
  padding-bottom: var(--space-6);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 24px;
  color: var(--color-graphite-500);
  max-width: 600px;
}

@media (max-width: 480px) {
  .accordion__trigger {
    padding-block: var(--space-5);
    font-size: 15px;
  }
}