/**
 * Nick Kids — Elements
 * ====================
 * Icons, Brand Heart, Buttons, IconButton, Badges, SectionTitle,
 * Cards (generic), Form controls, Chips.
 */

/* =======================================================================
 * ICON  — .nk-icon
 * Always rendered via nk_icon() (inc/icons.php), never inline <svg>.
 * ===================================================================== */

.nk-icon {
  display: inline-block;
  inline-size: var(--nk-icon-md);
  block-size: var(--nk-icon-md);
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: var(--nk-icon-stroke);
  stroke-linecap: round;
  stroke-linejoin: round;
  /* Optically centre the icon against the text baseline. */
  vertical-align: -0.2em;
}

.nk-icon--xs { inline-size: var(--nk-icon-xs); block-size: var(--nk-icon-xs); }
.nk-icon--sm { inline-size: var(--nk-icon-sm); block-size: var(--nk-icon-sm); }
.nk-icon--lg { inline-size: var(--nk-icon-lg); block-size: var(--nk-icon-lg); }
.nk-icon--xl { inline-size: var(--nk-icon-xl); block-size: var(--nk-icon-xl); }
.nk-icon--bold { stroke-width: var(--nk-icon-stroke-bold); }

/* Filled variants — heart on a wishlist that is already saved, filled stars. */
.nk-icon--filled { fill: currentColor; stroke: none; }

/* Social brand marks are filled paths, not strokes. */
.nk-icon--brand { fill: currentColor; stroke: none; }

/* =======================================================================
 * BRAND HEART — .nk-heart
 * The single official implementation of the coral heart motif.
 * Render with nk_brand_heart(). Never hand-write another heart.
 * ===================================================================== */

.nk-heart {
  display: inline-block;
  inline-size: var(--nk-heart-size-md);
  block-size: var(--nk-heart-size-md);
  flex: none;
  color: var(--nk-heart-color);
  fill: currentColor;
  stroke: none;
  vertical-align: -0.08em;
  /* Decorative by default — it carries no meaning a screen reader needs. */
}

.nk-heart--sm { inline-size: var(--nk-heart-size-sm); block-size: var(--nk-heart-size-sm); }
.nk-heart--lg { inline-size: var(--nk-heart-size-lg); block-size: var(--nk-heart-size-lg); }

/* On dark/inverse surfaces the coral still reads — do not recolour it. */
.nk-surface-inverse .nk-heart { color: var(--nk-coral-400); }

/* =======================================================================
 * SECTION TITLE — .nk-section-title
 * Heading + optional Brand Heart + optional "view all" link.
 * ===================================================================== */

.nk-section-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--nk-space-4);
  margin-block-end: var(--nk-space-5);
}

.nk-section-title__text {
  display: flex;
  align-items: center;
  gap: var(--nk-space-2);
  font-family: var(--nk-font-display);
  font-size: var(--nk-text-2xl);
  font-weight: var(--nk-weight-bold);
  color: var(--nk-text-strong);
  line-height: var(--nk-leading-snug);
}

.nk-section-title__sub {
  display: block;
  margin-block-start: var(--nk-space-1);
  font-size: var(--nk-text-base);
  font-weight: var(--nk-weight-regular);
  color: var(--nk-text-muted);
}

.nk-section-title__link {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: var(--nk-space-1);
  font-size: var(--nk-text-base);
  font-weight: var(--nk-weight-medium);
  color: var(--nk-text-accent);
  text-decoration: none;
  min-block-size: var(--nk-touch-target);
  align-content: center;
}
.nk-section-title__link:hover { text-decoration: underline; }

@media (min-width: 768px) {
  .nk-section-title__text { font-size: var(--nk-text-3xl); }
  .nk-section-title { margin-block-end: var(--nk-space-8); }
}

/* Centred editorial variant */
.nk-section-title--center {
  flex-direction: column;
  align-items: center;
  text-align: center;
}

/* =======================================================================
 * BUTTON — .nk-btn
 * Variants: primary | secondary | ghost | quiet | danger
 * Sizes: sm | (default md) | lg
 * ===================================================================== */

.nk-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--nk-space-2);
  min-block-size: var(--nk-touch-target);
  padding-inline: var(--nk-space-5);
  padding-block: var(--nk-space-3);
  border: var(--nk-border-width) solid transparent;
  border-radius: var(--nk-radius-md);
  font-family: var(--nk-font-ui);
  font-size: var(--nk-text-md);
  font-weight: var(--nk-weight-semibold);
  line-height: var(--nk-leading-none);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  user-select: none;
  transition: background-color var(--nk-transition-base),
              border-color var(--nk-transition-base),
              color var(--nk-transition-base),
              box-shadow var(--nk-transition-base),
              transform var(--nk-duration-instant) var(--nk-ease-standard);
}

/* Press feedback is a 1px settle, never a bounce. */
.nk-btn:active { transform: translateY(1px); }

.nk-btn:disabled,
.nk-btn[aria-disabled="true"] {
  background-color: var(--nk-action-disabled-bg);
  border-color: transparent;
  color: var(--nk-action-disabled-text);
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

/* --- variants --- */
.nk-btn--primary {
  background-color: var(--nk-action-primary);
  color: var(--nk-text-on-accent);
  box-shadow: var(--nk-shadow-accent);
}
.nk-btn--primary:hover:not(:disabled) { background-color: var(--nk-action-primary-hover); }
.nk-btn--primary:active:not(:disabled) { background-color: var(--nk-action-primary-active); }

.nk-btn--secondary {
  background-color: var(--nk-action-secondary);
  color: var(--nk-text-inverse);
}
.nk-btn--secondary:hover:not(:disabled) { background-color: var(--nk-action-secondary-hover); }

.nk-btn--ghost {
  background-color: transparent;
  border-color: var(--nk-border-default);
  color: var(--nk-text-strong);
}
.nk-btn--ghost:hover:not(:disabled) {
  border-color: var(--nk-border-strong);
  background-color: var(--nk-navy-50);
}

.nk-btn--quiet {
  background-color: transparent;
  color: var(--nk-text-accent);
  padding-inline: var(--nk-space-2);
}
.nk-btn--quiet:hover:not(:disabled) { background-color: var(--nk-action-primary-subtle); }

.nk-btn--danger {
  background-color: var(--nk-status-danger);
  color: var(--nk-white);
}

/* --- sizes --- */
.nk-btn--sm {
  min-block-size: 36px;
  padding-inline: var(--nk-space-3);
  padding-block: var(--nk-space-2);
  font-size: var(--nk-text-base);
  border-radius: var(--nk-radius-sm);
}
/**
 * 36px is a fine visual height with a mouse, but it breaks the 44px touch
 * minimum. On touch devices the small button grows to a legal target rather
 * than existing as a second, non-compliant size.
 */
@media (pointer: coarse) {
  .nk-btn--sm { min-block-size: var(--nk-touch-target); }
}
.nk-btn--lg {
  min-block-size: var(--nk-touch-target-lg);
  padding-inline: var(--nk-space-8);
  padding-block: var(--nk-space-4);
  font-size: var(--nk-text-lg);
}

.nk-btn--block { display: flex; inline-size: 100%; }

/**
 * Icon inside a button.
 * In RTL the icon sits to the RIGHT of the label automatically because the
 * flex row follows the writing direction — no override required. A leading
 * icon is simply the first DOM child.
 */
.nk-btn .nk-icon { inline-size: var(--nk-icon-md); block-size: var(--nk-icon-md); vertical-align: 0; }
.nk-btn--sm .nk-icon { inline-size: var(--nk-icon-sm); block-size: var(--nk-icon-sm); }

/* Loading state — the label stays for width stability, spinner replaces it. */
.nk-btn--loading { position: relative; color: transparent !important; pointer-events: none; }
.nk-btn--loading::after {
  content: "";
  position: absolute;
  inline-size: var(--nk-icon-md);
  block-size: var(--nk-icon-md);
  border: 2px solid currentColor;
  border-block-start-color: transparent;
  border-radius: var(--nk-radius-circle);
  color: var(--nk-text-on-accent);
  animation: nk-spin 700ms linear infinite;
}

/* =======================================================================
 * ICON BUTTON — .nk-icon-btn
 * Square, always has an accessible name via aria-label.
 * ===================================================================== */

.nk-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  inline-size: var(--nk-touch-target);
  block-size: var(--nk-touch-target);
  border-radius: var(--nk-radius-pill);
  color: var(--nk-text-strong);
  background-color: transparent;
  border: var(--nk-border-width) solid transparent;
  transition: background-color var(--nk-transition-base), color var(--nk-transition-base);
}
.nk-icon-btn:hover { background-color: var(--nk-navy-50); }
.nk-icon-btn:active { background-color: var(--nk-navy-100); }
.nk-icon-btn:disabled { color: var(--nk-action-disabled-text); cursor: not-allowed; background: none; }

.nk-icon-btn--solid { background-color: var(--nk-surface-raised); box-shadow: var(--nk-shadow-sm); }
.nk-icon-btn--accent { background-color: var(--nk-action-primary); color: var(--nk-text-on-accent); }
.nk-icon-btn--accent:hover { background-color: var(--nk-action-primary-hover); }
.nk-icon-btn--lg { inline-size: var(--nk-touch-target-lg); block-size: var(--nk-touch-target-lg); }

/* Count bubble on cart/wishlist buttons. */
.nk-icon-btn { position: relative; }
.nk-icon-btn__count {
  position: absolute;
  inset-block-start: 4px;
  inset-inline-end: 4px;
  min-inline-size: 18px;
  block-size: 18px;
  padding-inline: 5px;
  display: grid;
  place-items: center;
  background-color: var(--nk-action-primary);
  color: var(--nk-text-on-accent);
  font-size: var(--nk-text-2xs);
  font-weight: var(--nk-weight-bold);
  border-radius: var(--nk-radius-pill);
  border: 2px solid var(--nk-surface-page);
}

/* =======================================================================
 * BADGE — .nk-badge
 * ===================================================================== */

.nk-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--nk-space-1);
  padding-inline: var(--nk-space-2);
  padding-block: 3px;
  border-radius: var(--nk-radius-sm);
  font-size: var(--nk-text-xs);
  font-weight: var(--nk-weight-semibold);
  line-height: var(--nk-leading-snug);
  background-color: var(--nk-navy-50);
  color: var(--nk-text-default);
  white-space: nowrap;
}

.nk-badge--sale    { background-color: var(--nk-action-primary); color: var(--nk-text-on-accent); }
.nk-badge--new     { background-color: var(--nk-navy-800); color: var(--nk-text-inverse); }
.nk-badge--success { background-color: var(--nk-status-success-bg); color: var(--nk-status-success-text); }
.nk-badge--warning { background-color: var(--nk-status-warning-bg); color: var(--nk-status-warning-text); }
.nk-badge--danger  { background-color: var(--nk-status-danger-bg); color: var(--nk-status-danger-text); }
.nk-badge--soft    { background-color: var(--nk-surface-accent); color: var(--nk-text-accent); }
.nk-badge--pill    { border-radius: var(--nk-radius-pill); padding-inline: var(--nk-space-3); }

/* =======================================================================
 * CARD — .nk-card  (generic surface)
 * ===================================================================== */

.nk-card {
  background-color: var(--nk-surface-raised);
  border: var(--nk-border-width) solid var(--nk-border-subtle);
  border-radius: var(--nk-radius-lg);
  overflow: hidden;
}
.nk-card--flat { box-shadow: none; }
.nk-card--raised { box-shadow: var(--nk-shadow-sm); border-color: transparent; }
.nk-card--pad { padding: var(--nk-space-5); }

.nk-card--interactive {
  transition: box-shadow var(--nk-duration-normal) var(--nk-ease-standard),
              transform var(--nk-duration-normal) var(--nk-ease-standard);
}
@media (hover: hover) {
  .nk-card--interactive:hover {
    box-shadow: var(--nk-shadow-md);
    transform: translateY(-2px);
  }
}

/* =======================================================================
 * BENEFIT / TRUST CARD — .nk-benefit
 * Icon + title + short line. Used in the service strip.
 * ===================================================================== */

.nk-benefit {
  display: flex;
  align-items: center;
  gap: var(--nk-space-3);
  padding: var(--nk-space-4);
  background-color: var(--nk-surface-raised);
  border-radius: var(--nk-radius-lg);
  border: var(--nk-border-width) solid var(--nk-border-subtle);
}

.nk-benefit__icon {
  display: grid;
  place-items: center;
  inline-size: 44px;
  block-size: 44px;
  flex: none;
  border-radius: var(--nk-radius-pill);
  background-color: var(--nk-surface-accent);
  color: var(--nk-action-primary);
}
.nk-benefit__title {
  font-size: var(--nk-text-base);
  font-weight: var(--nk-weight-semibold);
  color: var(--nk-text-strong);
}
.nk-benefit__desc {
  font-size: var(--nk-text-sm);
  color: var(--nk-text-muted);
  line-height: var(--nk-leading-snug);
}

/* Mobile: horizontal scroll strip. Desktop: 4-up grid. */
.nk-benefit-grid {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(240px, 1fr);
  gap: var(--nk-space-3);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-block-end: var(--nk-space-2);
  scrollbar-width: none;
}
.nk-benefit-grid::-webkit-scrollbar { display: none; }
.nk-benefit-grid > * { scroll-snap-align: start; }

@media (min-width: 768px) {
  .nk-benefit-grid {
    grid-auto-flow: row;
    grid-template-columns: repeat(4, 1fr);
    overflow-x: visible;
  }
}

/* =======================================================================
 * FORM CONTROLS
 * ===================================================================== */

.nk-field { display: block; }
.nk-field + .nk-field { margin-block-start: var(--nk-space-5); }

.nk-label {
  display: block;
  margin-block-end: var(--nk-space-2);
  font-size: var(--nk-text-base);
  font-weight: var(--nk-weight-medium);
  color: var(--nk-text-strong);
}
.nk-label__required { color: var(--nk-status-danger); margin-inline-start: 2px; }

.nk-input,
.nk-textarea,
.nk-select {
  inline-size: 100%;
  min-block-size: var(--nk-touch-target-lg);
  padding-inline: var(--nk-space-4);
  padding-block: var(--nk-space-3);
  background-color: var(--nk-surface-raised);
  border: var(--nk-border-width) solid var(--nk-border-default);
  border-radius: var(--nk-radius-md);
  color: var(--nk-text-strong);
  /* 16px minimum — anything smaller makes iOS Safari zoom on focus. */
  font-size: var(--nk-text-md);
  line-height: var(--nk-leading-snug);
  transition: border-color var(--nk-transition-base), box-shadow var(--nk-transition-base);
}

.nk-input::placeholder,
.nk-textarea::placeholder { color: var(--nk-text-subtle); }

.nk-input:hover,
.nk-textarea:hover,
.nk-select:hover { border-color: var(--nk-border-strong); }

.nk-input:focus-visible,
.nk-textarea:focus-visible,
.nk-select:focus-visible {
  border-color: var(--nk-border-accent);
  outline-offset: 0;
}

.nk-input:disabled,
.nk-textarea:disabled,
.nk-select:disabled {
  background-color: var(--nk-navy-50);
  color: var(--nk-action-disabled-text);
  cursor: not-allowed;
}

.nk-input[aria-invalid="true"],
.nk-textarea[aria-invalid="true"] { border-color: var(--nk-status-danger); }

.nk-textarea { min-block-size: 120px; resize: vertical; }

.nk-select {
  appearance: none;
  /* Room for the chevron on the inline-end side, direction-aware. */
  padding-inline-end: var(--nk-space-10);
}
.nk-select-wrap { position: relative; }
.nk-select-wrap .nk-icon {
  position: absolute;
  inset-inline-end: var(--nk-space-4);
  inset-block-start: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--nk-text-muted);
}

.nk-help  { margin-block-start: var(--nk-space-2); font-size: var(--nk-text-sm); color: var(--nk-text-muted); }
.nk-error { margin-block-start: var(--nk-space-2); font-size: var(--nk-text-sm); color: var(--nk-status-danger-text); display: flex; align-items: center; gap: var(--nk-space-1); }

/* Checkbox / radio — 20px box inside a 44px hit area. */
.nk-check {
  display: flex;
  align-items: center;
  gap: var(--nk-space-3);
  min-block-size: var(--nk-touch-target);
  cursor: pointer;
}
.nk-check input {
  inline-size: 20px;
  block-size: 20px;
  flex: none;
  accent-color: var(--nk-action-primary);
  cursor: pointer;
}

/* =======================================================================
 * CHIP — .nk-chip  (filter tokens, applied facets, tag lists)
 * ===================================================================== */

.nk-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--nk-space-2);
  min-block-size: 36px;
  padding-inline: var(--nk-space-4);
  border: var(--nk-border-width) solid var(--nk-border-default);
  border-radius: var(--nk-radius-pill);
  background-color: var(--nk-surface-raised);
  font-size: var(--nk-text-base);
  color: var(--nk-text-default);
  white-space: nowrap;
  transition: all var(--nk-transition-base);
}
.nk-chip:hover { border-color: var(--nk-border-strong); }
.nk-chip[aria-pressed="true"],
.nk-chip--active {
  background-color: var(--nk-navy-800);
  border-color: var(--nk-navy-800);
  color: var(--nk-text-inverse);
}

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