/**
 * STG shared UI — boutons avec icônes (STG-UI-002 / 004).
 * Charger après tokens-stg.css.
 */

/* ══ Empty state ════════════════════════════════════════════════
   Usage : <div class="stg-empty [hidden]">
             <div class="stg-empty__icon" aria-hidden="true">SVG</div>
             <h2 class="stg-empty__title">Title</h2>
             <p  class="stg-empty__sub">Subtitle</p>
             <div class="stg-empty__cta">CTA button (optional)</div>
           </div>
   ══════════════════════════════════════════════════════════════ */
.stg-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--sp-8, 64px) var(--sp-5, 24px);
  background: var(--stg-paper, #ffffff);
  border: 1px solid var(--stg-border, rgba(22,26,20,0.08));
  border-radius: var(--stg-r-lg, 24px);
  box-shadow: var(--stg-lift, 0 1px 2px rgba(22,26,20,0.04), 0 6px 24px -8px rgba(22,26,20,0.08));
}

.stg-empty.hidden { display: none !important; }

.stg-empty__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--sp-4, 16px);
  border-radius: var(--stg-r-pill, 9999px);
  background: var(--stg-paper-deep, #f3f2ee);
  color: var(--stg-ink-4, #a6a59b);
  display: grid;
  place-items: center;
}

.stg-empty__title {
  margin: 0 0 var(--sp-2, 8px);
  font-family: var(--font-display, "Fraunces", Georgia, serif);
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1.15;
  color: var(--stg-ink, #161a14);
}

.stg-empty__sub {
  max-width: 360px;
  margin: 0 auto;
  font-size: 0.9375rem;
  line-height: var(--lh-body, 1.55);
  color: var(--stg-ink-3, #6b6b5f);
}

.stg-empty__cta {
  margin-top: var(--sp-4, 16px);
}

/* ══ Skeleton / loading placeholders ════════════════════════════
   Usage : <div class="stg-skeleton stg-skeleton--card" aria-hidden="true"></div>
   Retiré automatiquement quand clearChildren() remplace le contenu.
   ══════════════════════════════════════════════════════════════ */
.stg-skeleton {
  background: var(--stg-paper-deep, #f3f2ee);
  border-radius: var(--stg-r-sm, 8px);
  animation: stg-pulse 1.4s ease-in-out infinite;
}

@keyframes stg-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

.stg-skeleton--card {
  height: 200px;
  border-radius: var(--stg-r-lg, 24px);
}

.stg-skeleton--row {
  height: 64px;
  border-radius: var(--stg-r-md, 16px);
}

.stg-skeleton--line {
  height: 14px;
  border-radius: var(--stg-r-pill, 9999px);
}

/* respect prefers-reduced-motion (tokens-stg.css couvre la transition globale,
   on désactive ici l'animation skeleton spécifiquement) */
@media (prefers-reduced-motion: reduce) {
  .stg-skeleton { animation: none; opacity: 0.7; }
}

.stg-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2, 8px);
  font-family: var(--font-ui, "Inter Tight", system-ui, sans-serif);
  font-size: var(--fs-small, 0.875rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0;
  text-transform: none;
  text-decoration: none;
  white-space: nowrap;
  height: 36px;
  padding: 0 16px;
  border-radius: var(--stg-r-sm, 8px);
  border: 1px solid var(--stg-ink, #161a14);
  background: transparent;
  color: var(--stg-ink, #161a14);
  cursor: pointer;
  transition:
    background var(--dur-2, 0.2s) var(--ease, ease),
    color var(--dur-2, 0.2s) var(--ease),
    border-color var(--dur-2, 0.2s) var(--ease);
}

.stg-btn:hover {
  background: var(--stg-ink, #161a14);
  color: var(--stg-paper, #ffffff);
}

.stg-btn:focus-visible {
  outline: 2px solid var(--stg-focus, #161a14);
  outline-offset: 2px;
}

.stg-btn--sm {
  height: 30px;
  padding: 0 12px;
  font-size: 13px;
}

.stg-btn--ghost {
  border-color: transparent;
  background: transparent;
  color: var(--stg-ink, #161a14);
}

.stg-btn--ghost:hover {
  background: var(--stg-paper-deep, #f3f2ee);
  color: var(--stg-ink, #161a14);
  border-color: transparent;
}

.stg-btn--secondary {
  border-color: var(--stg-border-strong, rgba(22, 26, 20, 0.14));
  background: var(--stg-paper, #ffffff);
  color: var(--stg-ink, #161a14);
}

.stg-btn--secondary:hover {
  background: var(--stg-paper-deep, #f3f2ee);
  color: var(--stg-ink, #161a14);
  border-color: var(--stg-border-strong, rgba(22, 26, 20, 0.14));
}

.stg-btn--primary {
  background: var(--stg-ink, #161a14);
  color: var(--stg-paper, #ffffff);
  border-color: var(--stg-ink, #161a14);
}

.stg-btn--primary:hover {
  background: transparent;
  color: var(--stg-ink, #161a14);
}

.stg-btn--accent {
  background: var(--stg-accent, #d9f274);
  color: var(--stg-ink, #161a14);
  border-color: var(--stg-accent, #d9f274);
}

.stg-btn--accent:hover {
  background: var(--stg-ink, #161a14);
  color: var(--stg-paper, #ffffff);
  border-color: var(--stg-ink, #161a14);
}

.stg-btn--danger {
  border-color: color-mix(in oklab, var(--stg-danger, #b44a3a) 35%, var(--stg-border-strong, rgba(22, 26, 20, 0.14)));
  color: var(--stg-danger, #b44a3a);
  background: var(--stg-paper, #ffffff);
}

.stg-btn--danger:hover {
  background: color-mix(in oklab, var(--stg-danger, #b44a3a) 12%, var(--stg-paper, #ffffff));
  color: var(--stg-danger, #b44a3a);
  border-color: var(--stg-danger, #b44a3a);
}

.stg-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

.stg-btn__icon {
  display: inline-grid;
  place-items: center;
  flex-shrink: 0;
  line-height: 0;
}

.stg-btn__label {
  line-height: 1.2;
}

.stg-icon {
  display: block;
  width: 1em;
  height: 1em;
  flex-shrink: 0;
  color: inherit;
}

/* Hôte avant hydration — évite le flash de contenu vide */
[data-stg-icon]:not([data-stg-icon-hydrated]) {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1em;
  min-height: 1em;
}

.stg-icon[data-size="14"] {
  width: 14px;
  height: 14px;
}

.stg-icon[data-size="16"] {
  width: 16px;
  height: 16px;
}

.stg-icon[data-size="18"] {
  width: 18px;
  height: 18px;
}

.stg-icon[data-size="20"] {
  width: 20px;
  height: 20px;
}

.stg-icon[data-size="22"] {
  width: 22px;
  height: 22px;
}

.stg-icon--rotate-90 {
  transform: rotate(90deg);
}

.stg-icon--rotate-180 {
  transform: rotate(180deg);
}

.stg-icon--rotate-neg-90 {
  transform: rotate(-90deg);
}