/*
 * Aurum UI — Components
 * ----------------------
 * All values via var(--*) — zero hardcoded colors or sizes.
 * Components: btn, input, card, badge, nav, modal, toast,
 *             accordion, product-card, breadcrumb, pagination,
 *             avatar, divider, skeleton.
 */

/* ═══════════════════════════════════════════════════════════
   BUTTON
═══════════════════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 44px;
  padding: 0 var(--space-6);
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  font-family: var(--font-family-active, var(--font-family-primary));
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-regular);
  line-height: 1;
  letter-spacing: var(--letter-spacing-normal);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
  transition: var(--transition-btn);
  outline: none;
  position: relative;
  overflow: hidden;
}

/* Primary */
.btn--primary {
  background-color: var(--color-surface-action);
  color: var(--color-text-inverse);
  border-color: var(--color-surface-action);
}
.btn--primary:hover {
  background-color: var(--color-surface-action-hover);
  border-color: var(--color-surface-action-hover);
  color: var(--color-text-on-accent);
}
.btn--primary:focus-visible {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 2px;
}
.btn--primary:active {
  opacity: 0.85;
  transform: scale(0.98);
}
.btn--primary:disabled,
.btn--primary[aria-disabled="true"] {
  opacity: 0.38;
  cursor: not-allowed;
  pointer-events: none;
}

/* Secondary */
.btn--secondary {
  background-color: var(--color-brand-accent);
  color: var(--color-text-on-accent);
  border-color: var(--color-brand-accent);
}
.btn--secondary:hover {
  background-color: var(--color-brand-accent-hover);
  border-color: var(--color-brand-accent-hover);
  color: var(--color-text-on-accent);
}
.btn--secondary:focus-visible {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 2px;
}
.btn--secondary:active {
  opacity: 0.85;
  transform: scale(0.98);
}
.btn--secondary:disabled,
.btn--secondary[aria-disabled="true"] {
  opacity: 0.38;
  cursor: not-allowed;
  pointer-events: none;
}

/* Outline */
.btn--outline {
  background-color: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border-muted);
}
.btn--outline:hover {
  background-color: var(--color-surface-subtle);
  border-color: var(--color-border-default);
  color: var(--color-text-primary);
}
.btn--outline:focus-visible {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 2px;
}
.btn--outline:active {
  opacity: 0.85;
}
.btn--outline:disabled,
.btn--outline[aria-disabled="true"] {
  opacity: 0.38;
  cursor: not-allowed;
  pointer-events: none;
}

/* Ghost */
.btn--ghost {
  background-color: transparent;
  color: var(--color-text-primary);
  border-color: transparent;
}
.btn--ghost:hover {
  background-color: var(--color-surface-subtle);
  color: var(--color-text-primary);
}
.btn--ghost:focus-visible {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 2px;
}
.btn--ghost:active {
  opacity: 0.85;
}
.btn--ghost:disabled,
.btn--ghost[aria-disabled="true"] {
  opacity: 0.38;
  cursor: not-allowed;
  pointer-events: none;
}

/* Sizes */
.btn--sm {
  height: 36px;
  padding: 0 var(--space-4);
  font-size: var(--font-size-xs);
}
.btn--lg {
  height: 52px;
  padding: 0 var(--space-8);
  font-size: var(--font-size-md);
}
.btn--xl {
  height: 60px;
  padding: 0 var(--space-10);
  font-size: var(--font-size-lg);
}

/* Icon-only */
.btn--icon {
  padding: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
}
.btn--icon.btn--sm {
  width: 36px;
  height: 36px;
}

/* Full width */
.btn--full {
  width: 100%;
}

/* Loading state */
.btn.is-loading {
  pointer-events: none;
  opacity: 0.7;
}
.btn.is-loading::after {
  content: '';
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: var(--radius-full);
  animation: spin 0.6s linear infinite;
  margin-left: var(--space-2);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ═══════════════════════════════════════════════════════════
   INPUT
═══════════════════════════════════════════════════════════ */
.input-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.input-label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
}

.input {
  display: block;
  width: 100%;
  height: 44px;
  padding: 0 var(--space-5);
  border-radius: var(--radius-input);
  border: 1px solid var(--color-border-muted);
  background-color: var(--color-surface-default);
  color: var(--color-text-primary);
  font-family: var(--font-family-active, var(--font-family-primary));
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-regular);
  line-height: 1;
  transition: border-color var(--duration-normal) var(--ease-inout-4);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.input::placeholder {
  color: var(--color-text-muted);
}

.input:hover {
  border-color: var(--color-border-default);
}

.input:focus {
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px var(--color-brand-accent-subtle);
}

.input:disabled {
  background-color: var(--color-surface-subtle);
  color: var(--color-text-disabled);
  cursor: not-allowed;
}

.input.is-error {
  border-color: var(--color-error);
}
.input.is-error:focus {
  box-shadow: 0 0 0 3px var(--color-error-subtle);
}

.input.is-success {
  border-color: var(--color-success);
}
.input.is-success:focus {
  box-shadow: 0 0 0 3px var(--color-success-subtle);
}

.input-hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}
.input.is-error + .input-hint {
  color: var(--color-error);
}

/* Textarea */
.input.input--textarea {
  height: auto;
  min-height: 120px;
  padding: var(--space-4) var(--space-5);
  resize: vertical;
  line-height: var(--line-height-normal);
}

/* Select */
.input.input--select {
  padding-right: var(--space-8);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23615e5b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  cursor: pointer;
}

/* Input group (icon prefix/suffix) */
.input-group {
  position: relative;
  display: flex;
  align-items: center;
}
.input-group .input {
  padding-left: var(--space-10);
}
.input-group .input-group__icon {
  position: absolute;
  left: var(--space-4);
  color: var(--color-text-muted);
  pointer-events: none;
  display: flex;
  align-items: center;
}

/* ═══════════════════════════════════════════════════════════
   CARD
═══════════════════════════════════════════════════════════ */
.card {
  background-color: var(--color-surface-subtle);
  border-radius: var(--radius-card);
  border: 1px solid transparent;
  padding: var(--space-7);
  box-shadow: var(--shadow-card);
  transition: background-color var(--duration-normal) var(--ease-inout-5),
              border-color var(--duration-normal) var(--ease-inout-5),
              box-shadow var(--duration-normal) var(--ease-inout-5);
}

.card:hover {
  border-color: var(--color-border-subtle);
}

.card--flat {
  background-color: var(--color-surface-default);
  border-color: var(--color-border-subtle);
}

.card--elevated {
  background-color: var(--color-surface-elevated);
  box-shadow: var(--shadow-lg);
}

.card--dark {
  background-color: var(--color-surface-action);
  color: var(--color-text-inverse);
}
.card--dark .card__title,
.card--dark .card__body {
  color: var(--color-text-inverse);
}

.card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  background-color: var(--color-brand-accent-subtle);
  color: var(--color-brand-accent);
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-4);
}

.card__tag {
  font-size: var(--font-size-micro);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--letter-spacing-wider);
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.card__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--letter-spacing-tight);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-3);
}

.card__body {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-snug);
  color: var(--color-text-secondary);
  margin: 0;
}

.card__footer {
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.card__img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: calc(var(--radius-card) - 4px);
  margin-bottom: var(--space-5);
  background-color: var(--color-surface-muted);
}

/* ═══════════════════════════════════════════════════════════
   BADGE
═══════════════════════════════════════════════════════════ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  height: 24px;
  padding: 0 var(--space-3);
  border-radius: var(--radius-badge);
  font-size: var(--font-size-micro);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  white-space: nowrap;
  background-color: var(--color-surface-muted);
  color: var(--color-text-secondary);
  border: 1px solid transparent;
}

.badge--accent {
  background-color: var(--color-brand-accent-subtle);
  color: var(--color-brand-accent);
}

.badge--success {
  background-color: var(--color-success-subtle);
  color: var(--color-success);
}

.badge--warning {
  background-color: var(--color-warning-subtle);
  color: var(--color-warning);
}

.badge--error {
  background-color: var(--color-error-subtle);
  color: var(--color-error);
}

.badge--info {
  background-color: var(--color-info-subtle);
  color: var(--color-info);
}

.badge--outline {
  background-color: transparent;
  border-color: var(--color-border-muted);
  color: var(--color-text-secondary);
}

.badge--dark {
  background-color: var(--color-surface-action);
  color: var(--color-text-inverse);
}

.badge--lg {
  height: 32px;
  padding: 0 var(--space-4);
  font-size: var(--font-size-xs);
}

/* Dot indicator */
.badge::before {
  content: none;
}
.badge.has-dot::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background-color: currentColor;
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════════
   NAV
═══════════════════════════════════════════════════════════ */
.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background-color: var(--color-surface-default);
  border-bottom: 1px solid var(--color-border-subtle);
  transition: background-color var(--duration-normal) var(--ease-inout-5),
              box-shadow var(--duration-normal) var(--ease-inout-5);
}

.nav.is-scrolled {
  box-shadow: var(--shadow-sm);
  background-color: var(--color-surface-elevated);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  gap: var(--space-8);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text-primary);
  text-decoration: none;
  flex-shrink: 0;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__link {
  display: flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-regular);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: background-color var(--duration-normal) var(--ease-inout-5),
              color var(--duration-normal) var(--ease-inout-5);
  white-space: nowrap;
}

.nav__link:hover {
  background-color: var(--color-surface-subtle);
  color: var(--color-text-primary);
}

.nav__link.is-active {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

.nav__cta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════════════════
   MODAL
═══════════════════════════════════════════════════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background-color: var(--color-surface-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-slower) var(--ease-inout-4);
}

.modal-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  position: relative;
  background-color: var(--color-surface-default);
  border-radius: var(--radius-modal);
  box-shadow: var(--shadow-modal);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--space-8);
  transform: translateY(12px);
  transition: transform var(--duration-slower) var(--ease-out-4),
              opacity var(--duration-slower) var(--ease-out-4);
  opacity: 0;
}

.modal-overlay.is-open .modal {
  transform: translateY(0);
  opacity: 1;
}

.modal__close {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: none;
  background-color: var(--color-surface-subtle);
  color: var(--color-text-secondary);
  cursor: pointer;
  font-size: var(--font-size-lg);
  line-height: 1;
  transition: background-color var(--duration-normal) var(--ease-inout-5);
}
.modal__close:hover {
  background-color: var(--color-surface-muted);
  color: var(--color-text-primary);
}

.modal__header {
  margin-bottom: var(--space-6);
  padding-right: var(--space-8);
}

.modal__title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-2);
}

.modal__subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.modal__body {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
}

.modal__footer {
  margin-top: var(--space-8);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
}

/* ═══════════════════════════════════════════════════════════
   TOAST
═══════════════════════════════════════════════════════════ */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  min-width: 320px;
  max-width: 420px;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-xl);
  background-color: var(--color-surface-action);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-xl);
  pointer-events: auto;
  transform: translateX(calc(100% + var(--space-6)));
  opacity: 0;
  transition: transform var(--duration-slow) var(--ease-out-4),
              opacity var(--duration-slow) var(--ease-out-4);
}

.toast.is-visible {
  transform: translateX(0);
  opacity: 1;
}

.toast.is-leaving {
  transform: translateX(calc(100% + var(--space-6)));
  opacity: 0;
}

.toast--success {
  background-color: var(--color-success);
  color: var(--color-neutral-0);
}

.toast--error {
  background-color: var(--color-error);
  color: var(--color-neutral-0);
}

.toast--warning {
  background-color: var(--color-warning);
  color: var(--color-neutral-900);
}

.toast--info {
  background-color: var(--color-info);
  color: var(--color-neutral-0);
}

.toast__icon {
  font-size: var(--font-size-lg);
  flex-shrink: 0;
  margin-top: 1px;
}

.toast__content {
  flex: 1;
}

.toast__title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin: 0 0 var(--space-1);
}

.toast__message {
  font-size: var(--font-size-xs);
  opacity: 0.8;
  margin: 0;
  line-height: var(--line-height-snug);
}

.toast__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: none;
  background: transparent;
  color: inherit;
  opacity: 0.7;
  cursor: pointer;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  font-size: var(--font-size-lg);
  line-height: 1;
  padding: 0;
}
.toast__close:hover {
  opacity: 1;
}

/* ═══════════════════════════════════════════════════════════
   ACCORDION
═══════════════════════════════════════════════════════════ */
.accordion {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-border-subtle);
}

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

.accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-6) 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-family-active, var(--font-family-primary));
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  gap: var(--space-4);
  transition: color var(--duration-normal) var(--ease-inout-5);
}

.accordion__trigger:hover {
  color: var(--color-brand-accent);
}

.accordion__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--color-text-muted);
  transition: transform var(--duration-slow) var(--ease-inout-5),
              color var(--duration-slow) var(--ease-inout-5);
}

.accordion__item.is-open .accordion__icon {
  transform: rotate(180deg);
  color: var(--color-text-primary);
}

.accordion__panel {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows var(--duration-slow) var(--ease-inout-5),
              opacity var(--duration-slow) var(--ease-inout-5);
}

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

.accordion__panel-inner {
  overflow: hidden;
}

.accordion__body {
  padding: 0 0 var(--space-6);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-normal);
}

/* ═══════════════════════════════════════════════════════════
   PRODUCT CARD
═══════════════════════════════════════════════════════════ */
.product-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-surface-subtle);
  border-radius: var(--radius-card);
  border: 1px solid transparent;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: border-color var(--duration-normal) var(--ease-inout-5),
              box-shadow var(--duration-normal) var(--ease-inout-5),
              transform var(--duration-normal) var(--ease-out-3);
  text-decoration: none;
  color: inherit;
}

.product-card:hover {
  border-color: var(--color-border-subtle);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.product-card__image-wrap {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background-color: var(--color-surface-muted);
}

.product-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out-3);
}

.product-card:hover .product-card__image {
  transform: scale(1.04);
}

.product-card__badge {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
}

.product-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: var(--space-6);
  gap: var(--space-3);
}

.product-card__category {
  font-size: var(--font-size-micro);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--letter-spacing-wider);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.product-card__name {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--letter-spacing-tight);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  margin: 0;
}

.product-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-snug);
  margin: 0;
}

.product-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border-subtle);
}

.product-card__price {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  letter-spacing: var(--letter-spacing-tight);
  font-family: var(--font-family-mono);
}

.product-card__price-note {
  font-size: var(--font-size-micro);
  color: var(--color-text-muted);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
}

/* ═══════════════════════════════════════════════════════════
   BREADCRUMB
═══════════════════════════════════════════════════════════ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.breadcrumb__item::after {
  content: '/';
  color: var(--color-border-muted);
  font-weight: var(--font-weight-regular);
}

.breadcrumb__item:last-child::after {
  content: none;
}

.breadcrumb__link {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-inout-3);
}

.breadcrumb__link:hover {
  color: var(--color-text-primary);
}

.breadcrumb__item.is-current {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

/* ═══════════════════════════════════════════════════════════
   PAGINATION
═══════════════════════════════════════════════════════════ */
.pagination {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.pagination__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--color-border-subtle);
  background-color: transparent;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-regular);
  font-family: var(--font-family-active, var(--font-family-primary));
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--ease-inout-3),
              border-color var(--duration-fast) var(--ease-inout-3),
              color var(--duration-fast) var(--ease-inout-3);
  text-decoration: none;
}

.pagination__btn:hover {
  background-color: var(--color-surface-subtle);
  border-color: var(--color-border-default);
  color: var(--color-text-primary);
}

.pagination__btn.is-active {
  background-color: var(--color-surface-action);
  border-color: var(--color-surface-action);
  color: var(--color-text-inverse);
}

.pagination__btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
  pointer-events: none;
}

.pagination__ellipsis {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* ═══════════════════════════════════════════════════════════
   AVATAR
═══════════════════════════════════════════════════════════ */
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: var(--color-surface-muted);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid var(--color-surface-default);
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar--sm { width: 28px; height: 28px; font-size: var(--font-size-micro); }
.avatar--md { width: 40px; height: 40px; font-size: var(--font-size-sm); }
.avatar--lg { width: 56px; height: 56px; font-size: var(--font-size-lg); }
.avatar--xl { width: 80px; height: 80px; font-size: var(--font-size-2xl); }

.avatar--accent {
  background-color: var(--color-brand-accent-subtle);
  color: var(--color-brand-accent);
}

.avatar--dark {
  background-color: var(--color-surface-action);
  color: var(--color-text-inverse);
}

/* Avatar group */
.avatar-group {
  display: flex;
}
.avatar-group .avatar {
  margin-left: -10px;
  position: relative;
  transition: transform var(--duration-fast) var(--ease-out-3);
}
.avatar-group .avatar:first-child {
  margin-left: 0;
}
.avatar-group .avatar:hover {
  transform: translateY(-3px);
  z-index: 10 !important;
}
/* First avatar on top — stacking reads left-to-right */
.avatar-group .avatar:nth-child(1) { z-index: 5; }
.avatar-group .avatar:nth-child(2) { z-index: 4; }
.avatar-group .avatar:nth-child(3) { z-index: 3; }
.avatar-group .avatar:nth-child(4) { z-index: 2; }
.avatar-group .avatar:nth-child(5) { z-index: 1; }
.avatar-group .avatar:nth-child(6) { z-index: 0; }

/* ═══════════════════════════════════════════════════════════
   DIVIDER
═══════════════════════════════════════════════════════════ */
.divider {
  border: none;
  border-top: 1px solid var(--color-border-subtle);
  margin: 0;
}

.divider--thick {
  border-top-width: 2px;
}

.divider--accent {
  border-top-color: var(--color-brand-accent);
}

.divider--label {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  border: none;
  margin: 0;
}

.divider--label::before,
.divider--label::after {
  content: '';
  flex: 1;
  border-top: 1px solid var(--color-border-subtle);
}

.divider--label span {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  white-space: nowrap;
}

/* ═══════════════════════════════════════════════════════════
   SKELETON
═══════════════════════════════════════════════════════════ */
@keyframes shimmer {
  0% { background-position: -400px 0; }
  100% { background-position: 400px 0; }
}

.skeleton {
  border-radius: var(--radius-sm);
  background-color: var(--color-surface-muted);
  background-image: linear-gradient(
    90deg,
    var(--color-surface-muted) 25%,
    var(--color-surface-subtle) 50%,
    var(--color-surface-muted) 75%
  );
  background-size: 800px 100%;
  animation: shimmer 1.6s ease-in-out infinite;
}

.skeleton--text {
  height: 1em;
  border-radius: var(--radius-sm);
}

.skeleton--heading {
  height: 1.5em;
  border-radius: var(--radius-sm);
}

.skeleton--avatar {
  border-radius: var(--radius-full);
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.skeleton--avatar.avatar--sm { width: 28px; height: 28px; }
.skeleton--avatar.avatar--lg { width: 56px; height: 56px; }

.skeleton--btn {
  height: 44px;
  border-radius: var(--radius-btn);
  width: 120px;
}

.skeleton--card {
  border-radius: var(--radius-card);
  height: 200px;
}

.skeleton--img {
  border-radius: var(--radius-lg);
  aspect-ratio: 16/9;
  width: 100%;
}

/* ═══════════════════════════════════════════════════════════
   UTILITY
═══════════════════════════════════════════════════════════ */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section {
  padding-top: clamp(48px, 5em, 80px);
  padding-bottom: clamp(48px, 5em, 80px);
}

/* ─── Responsive ───────────────────────────────────────── */
@media (max-width: 991px) {
  .nav__links { display: none; }
}

@media (max-width: 767px) {
  .toast { min-width: unset; max-width: calc(100vw - var(--space-12)); }
  .toast-container { right: var(--space-4); left: var(--space-4); bottom: var(--space-4); }
  .modal { padding: var(--space-6); }
}

@media (max-width: 479px) {
  .modal__footer { flex-direction: column; }
  .modal__footer .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}