/**
 * Assopiscine — shadcn/ui–inspired primitives (HTML/CSS)
 * Tokens override per tema via :root / .theme-*
 * Ref: https://ui.shadcn.com/
 */

:root {
  --ui-radius: 0.625rem;
  --ui-ring: 0 0 0 3px color-mix(in srgb, var(--ui-primary) 28%, transparent);
  --ui-font: "Open Sans", system-ui, sans-serif;
  --ui-font-display: "Montserrat", system-ui, sans-serif;

  --ui-bg: #ffffff;
  --ui-fg: #0a0a0a;
  --ui-muted: #f4f4f5;
  --ui-muted-fg: #71717a;
  --ui-border: #e4e4e7;
  --ui-card: #ffffff;
  --ui-card-fg: #0a0a0a;
  --ui-primary: #0a3d4d;
  --ui-primary-fg: #fafafa;
  --ui-secondary: #f4f4f5;
  --ui-secondary-fg: #18181b;
  --ui-accent: #1f7a8c;
  --ui-accent-fg: #fafafa;
  --ui-destructive: #dc2626;
  --ui-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  --ui-shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --card-spacing: 1.25rem;
}

/* ——— Button ——— */
.ui-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  white-space: nowrap;
  border-radius: calc(var(--ui-radius) - 2px);
  font-family: var(--ui-font-display);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1;
  height: 2.5rem;
  padding: 0 1rem;
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
.ui-btn:focus-visible { outline: none; box-shadow: var(--ui-ring); }
.ui-btn:disabled { opacity: 0.5; pointer-events: none; }
.ui-btn--sm { height: 2rem; padding: 0 0.75rem; font-size: 0.8rem; }
.ui-btn--lg { height: 2.75rem; padding: 0 1.35rem; font-size: 0.95rem; }
.ui-btn--icon { width: 2.5rem; padding: 0; }
.ui-btn--default {
  background: var(--ui-primary);
  color: var(--ui-primary-fg);
}
.ui-btn--default:hover { filter: brightness(1.08); }
.ui-btn--secondary {
  background: var(--ui-secondary);
  color: var(--ui-secondary-fg);
}
.ui-btn--secondary:hover { filter: brightness(0.97); }
.ui-btn--outline {
  background: transparent;
  border-color: var(--ui-border);
  color: var(--ui-fg);
}
.ui-btn--outline:hover { background: var(--ui-muted); }
.ui-btn--ghost {
  background: transparent;
  color: var(--ui-fg);
}
.ui-btn--ghost:hover { background: var(--ui-muted); }
.ui-btn--link {
  background: transparent;
  color: var(--ui-primary);
  height: auto;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ——— Badge ——— */
.ui-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 0.2rem 0.65rem;
  font-family: var(--ui-font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.4;
}
.ui-badge--default { background: var(--ui-primary); color: var(--ui-primary-fg); }
.ui-badge--secondary { background: var(--ui-secondary); color: var(--ui-secondary-fg); }
.ui-badge--outline { background: transparent; border-color: var(--ui-border); color: var(--ui-fg); }
.ui-badge--accent { background: color-mix(in srgb, var(--ui-accent) 16%, transparent); color: var(--ui-accent); border-color: color-mix(in srgb, var(--ui-accent) 28%, transparent); }

/* ——— Card ——— */
.ui-card {
  display: flex;
  flex-direction: column;
  gap: var(--card-spacing);
  background: var(--ui-card);
  color: var(--ui-card-fg);
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius);
  box-shadow: var(--ui-shadow);
  padding: var(--card-spacing) 0;
  overflow: hidden;
}
.ui-card--sm { --card-spacing: 0.85rem; }
.ui-card__header {
  display: grid;
  gap: 0.35rem;
  padding: 0 var(--card-spacing);
}
.ui-card__header--row {
  grid-template-columns: 1fr auto;
  align-items: start;
}
.ui-card__title {
  margin: 0;
  font-family: var(--ui-font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
}
.ui-card__desc {
  margin: 0;
  color: var(--ui-muted-fg);
  font-size: 0.9rem;
  line-height: 1.5;
}
.ui-card__content { padding: 0 var(--card-spacing); }
.ui-card__footer {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: var(--card-spacing);
  margin-top: calc(var(--card-spacing) * -0.25);
  border-top: 1px solid var(--ui-border);
  background: color-mix(in srgb, var(--ui-muted) 55%, transparent);
}
.ui-card__media {
  margin: calc(var(--card-spacing) * -1) 0 0;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.ui-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ——— Separator ——— */
.ui-sep {
  height: 1px;
  width: 100%;
  background: var(--ui-border);
  border: 0;
  margin: 0;
}
.ui-sep--vertical {
  width: 1px;
  height: 1.25rem;
  display: inline-block;
}

/* ——— Alert ——— */
.ui-alert {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 0.85rem;
  align-items: start;
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius);
  padding: 1rem 1.1rem;
  background: var(--ui-card);
  color: var(--ui-card-fg);
}
.ui-alert__icon {
  width: 1.1rem;
  height: 1.1rem;
  margin-top: 0.15rem;
  border-radius: 50%;
  background: var(--ui-accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--ui-accent) 18%, transparent);
}
.ui-alert__title {
  margin: 0;
  font-family: var(--ui-font-display);
  font-size: 0.92rem;
  font-weight: 700;
}
.ui-alert__desc {
  margin: 0;
  grid-column: 2;
  color: var(--ui-muted-fg);
  font-size: 0.88rem;
  line-height: 1.5;
}
.ui-alert--info {
  border-color: color-mix(in srgb, var(--ui-accent) 35%, var(--ui-border));
  background: color-mix(in srgb, var(--ui-accent) 6%, var(--ui-card));
}

/* ——— Tabs ——— */
.ui-tabs { width: 100%; }
.ui-tabs__list {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.3rem;
  border-radius: var(--ui-radius);
  background: var(--ui-muted);
  border: 1px solid var(--ui-border);
}
.ui-tabs__trigger {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--ui-muted-fg);
  font-family: var(--ui-font-display);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.55rem 0.95rem;
  border-radius: calc(var(--ui-radius) - 4px);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
}
.ui-tabs__trigger[aria-selected="true"] {
  background: var(--ui-bg);
  color: var(--ui-fg);
  box-shadow: var(--ui-shadow);
}
.ui-tabs__trigger:focus-visible { outline: none; box-shadow: var(--ui-ring); }
.ui-tabs__panel { margin-top: 1.25rem; }
.ui-tabs__panel[hidden] { display: none; }

/* ——— Accordion ——— */
.ui-acc {
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius);
  background: var(--ui-card);
  overflow: hidden;
}
.ui-acc__item + .ui-acc__item { border-top: 1px solid var(--ui-border); }
.ui-acc__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.15rem;
  background: transparent;
  border: 0;
  text-align: left;
  font-family: var(--ui-font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ui-fg);
  cursor: pointer;
}
.ui-acc__trigger:focus-visible { outline: none; box-shadow: inset var(--ui-ring); }
.ui-acc__chevron {
  width: 0.55rem;
  height: 0.55rem;
  border-right: 2px solid var(--ui-muted-fg);
  border-bottom: 2px solid var(--ui-muted-fg);
  transform: rotate(45deg);
  transition: transform 0.2s;
  flex-shrink: 0;
}
.ui-acc__trigger[aria-expanded="true"] .ui-acc__chevron {
  transform: rotate(225deg);
}
.ui-acc__panel {
  padding: 0 1.15rem 1.1rem;
  color: var(--ui-muted-fg);
  font-size: 0.92rem;
  line-height: 1.55;
}
.ui-acc__panel[hidden] { display: none; }

/* ——— Form ——— */
.ui-field { display: grid; gap: 0.45rem; }
.ui-label {
  font-family: var(--ui-font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ui-fg);
}
.ui-input {
  height: 2.5rem;
  width: 100%;
  border-radius: calc(var(--ui-radius) - 2px);
  border: 1px solid var(--ui-border);
  background: var(--ui-bg);
  color: var(--ui-fg);
  padding: 0 0.85rem;
  font: inherit;
  font-size: 0.925rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.ui-input::placeholder { color: var(--ui-muted-fg); }
.ui-input:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--ui-primary) 55%, var(--ui-border));
  box-shadow: var(--ui-ring);
}

/* ——— Avatar ——— */
.ui-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  background: var(--ui-muted);
  color: var(--ui-fg);
  font-family: var(--ui-font-display);
  font-size: 0.75rem;
  font-weight: 700;
  border: 2px solid var(--ui-bg);
  overflow: hidden;
}
.ui-avatar-group {
  display: flex;
  align-items: center;
}
.ui-avatar-group .ui-avatar { margin-left: -0.55rem; }
.ui-avatar-group .ui-avatar:first-child { margin-left: 0; }

/* ——— Skeleton ——— */
.ui-skeleton {
  border-radius: calc(var(--ui-radius) - 4px);
  background: linear-gradient(90deg, var(--ui-muted), color-mix(in srgb, var(--ui-muted) 60%, #fff), var(--ui-muted));
  background-size: 200% 100%;
  animation: ui-shimmer 1.4s ease-in-out infinite;
}
@keyframes ui-shimmer {
  0% { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}

@media (prefers-reduced-motion: reduce) {
  .ui-skeleton { animation: none; }
}