/**
 * shadcn/ui-aligned primitives for the static prototype (no React).
 * Maps to design tokens in tokens.css — same visual language as _figma_export/ui components.
 */

/* —— Button (outline / default / ghost / sm) —— */
.ui-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  white-space: nowrap;
  border-radius: calc(var(--radius-md) - 2px);
  font-family: var(--font-body);
  font-size: var(--text-body-m);
  font-weight: var(--weight-medium);
  line-height: 1.25;
  border: 1px solid transparent;
  background: transparent;
  color: var(--color-foreground);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  -webkit-tap-highlight-color: transparent;
}

.ui-btn:focus-visible {
  outline: 2px solid var(--color-ring);
  outline-offset: 2px;
}

.ui-btn:disabled {
  opacity: 0.5;
  pointer-events: none;
}

.ui-btn--sm {
  height: 2rem;
  padding: 0 0.75rem;
  font-size: 0.8125rem;
  border-radius: calc(var(--radius-md) - 3px);
  gap: 0.375rem;
}

.ui-btn--default {
  background: var(--color-primary);
  color: var(--color-primary-foreground);
  border-color: var(--color-primary);
}

.ui-btn--default:hover {
  background: var(--color-primary-500);
  filter: brightness(0.95);
}

.ui-btn--danger {
  background: var(--color-destructive, #dc2626);
  color: var(--color-destructive-foreground, #fff);
  border-color: var(--color-destructive, #dc2626);
}

.ui-btn--danger:hover {
  filter: brightness(0.92);
}

.ui-btn--outline {
  background: var(--color-background);
  border-color: var(--color-input-border);
  color: var(--color-foreground);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.ui-btn--outline:hover {
  background: var(--color-accent);
  color: var(--color-accent-foreground);
}

.ui-btn--ghost {
  border-color: transparent;
  color: var(--color-foreground);
}

.ui-btn--ghost:hover {
  background: var(--color-accent);
  color: var(--color-accent-foreground);
}

.ui-btn__icon {
  display: inline-flex;
  line-height: 0;
  opacity: 0.9;
}

.ui-btn--icon {
  width: 2rem;
  height: 2rem;
  padding: 0;
  border-radius: calc(var(--radius-md) - 2px);
}

/* —— Badge (filter count) —— */
.ui-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.25rem;
  height: 1.25rem;
  padding: 0 0.4rem;
  border-radius: calc(var(--radius-sm) + 1px);
  font-size: 0.75rem;
  font-weight: var(--weight-semibold);
  line-height: 1;
  background: var(--color-primary);
  color: var(--color-primary-foreground);
  border: 1px solid transparent;
}

/* —— Dialog (Radix/shadcn dialog content pattern) —— */
.ui-dialog-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(15, 23, 42, 0.45);
  animation: ui-dialog-overlay-in 0.15s ease-out;
}

@keyframes ui-dialog-overlay-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.ui-dialog {
  position: relative;
  width: 100%;
  max-width: 28rem;
  max-height: min(90dvh, 640px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-200);
  background: var(--color-background);
  color: var(--color-foreground);
  box-shadow:
    0 10px 15px -3px rgba(0, 0, 0, 0.08),
    0 4px 6px -4px rgba(0, 0, 0, 0.06);
  animation: ui-dialog-in 0.2s ease-out;
}

@keyframes ui-dialog-in {
  from {
    opacity: 0;
    transform: scale(0.97);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.ui-dialog__close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  z-index: 2;
}

.ui-dialog__header {
  flex-shrink: 0;
  padding: 1.5rem 1.5rem 0;
  padding-right: 2.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.ui-dialog__title {
  margin: 0;
  font-size: var(--text-body-l);
  font-weight: var(--weight-semibold);
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--color-foreground);
}

.ui-dialog__body {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding: 1rem 1.5rem;
  -webkit-overflow-scrolling: touch;
}

.ui-dialog__footer {
  flex-shrink: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1.5rem 1.5rem;
  border-top: 1px solid var(--color-gray-200);
  background: var(--color-gray-50);
}

.ui-dialog__footer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-left: auto;
}

/* —— Separator —— */
.ui-separator {
  height: 1px;
  width: 100%;
  margin: 0;
  border: none;
  background: var(--color-gray-200);
  flex-shrink: 0;
}

.ui-separator--my {
  margin: 0.75rem 0;
}

/* —— Filter sections (fieldset replacement) —— */
.ui-filter-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-page);
}

.ui-filter-section + .ui-filter-section {
  margin-top: var(--space-page);
  padding-top: var(--space-page);
  border-top: 1px solid var(--color-gray-200);
}

/* Age row: same grid as registration; 24px (--space-page) gap */
.form-grid.form-grid--filter-age {
  gap: var(--space-page);
}

.ui-filter-section__label {
  margin: 0;
  font-size: var(--text-body-m);
  font-weight: var(--weight-medium);
  line-height: 1.25;
  color: var(--color-foreground);
}

/* —— Filter chips (toggle, shadcn-style) —— */
.ui-chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.ui-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2rem;
  padding: 0.25rem 0.85rem;
  border-radius: var(--radius-pill);
  font-size: var(--text-body-m);
  font-weight: var(--weight-medium);
  line-height: 1.2;
  border: 1px solid var(--color-gray-200);
  background: var(--color-background);
  color: var(--color-muted-foreground);
  cursor: pointer;
  transition:
    background 0.15s ease,
    color 0.15s ease,
    border-color 0.15s ease,
    box-shadow 0.15s ease;
}

.ui-chip:hover {
  background: var(--color-accent);
  color: var(--color-foreground);
  border-color: var(--color-gray-400);
}

.ui-chip:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--color-background), 0 0 0 4px var(--color-ring);
}

.ui-chip.is-selected {
  border-color: var(--color-primary);
  background: var(--color-primary-100);
  color: var(--color-primary-500);
  font-weight: var(--weight-semibold);
}

/* —— Checkbox row (Label + Checkbox shadcn-style) —— */
.ui-checkbox-row {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 0.5rem;
  max-width: 100%;
  font-size: var(--text-body);
  line-height: var(--lh-body);
  color: var(--color-foreground);
  cursor: pointer;
  user-select: none;
}

.ui-checkbox-row .ui-checkbox {
  margin-top: 0.15rem;
}

.ui-checkbox-row:hover .ui-checkbox-label {
  color: var(--color-foreground);
}

.ui-checkbox {
  position: relative;
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
  margin: 0;
  appearance: none;
  border: 1px solid var(--color-input-border);
  border-radius: var(--radius-sm);
  background: var(--color-background);
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.04);
  cursor: pointer;
  transition:
    border-color 0.15s ease,
    background 0.15s ease,
    box-shadow 0.15s ease;
}

.ui-checkbox:hover {
  border-color: var(--color-gray-400);
}

.ui-checkbox:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(124, 81, 161, 0.28);
  border-color: var(--color-primary);
}

.ui-checkbox:checked {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.ui-checkbox:checked::after {
  content: "";
  position: absolute;
  left: 0.2rem;
  top: 0.05rem;
  width: 0.25rem;
  height: 0.5rem;
  border: solid var(--color-primary-foreground);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.ui-checkbox-label {
  flex: 1;
  min-width: 0;
  color: var(--color-muted-foreground);
  transition: color 0.15s ease;
}

.ui-checkbox-row:has(.ui-checkbox:checked) .ui-checkbox-label {
  color: var(--color-foreground);
  font-weight: var(--weight-medium);
}