/* ============================================================
   WHAT YOU CAN BUILD — Section capacités Connect Web
   Inspiré de Supabase Vector "What you can build"
   BEM prefix : wcb / capability-card
   ============================================================ */

/* --- Section ---------------------------------------------- */
.wcb {
  background: var(--color-bg);
  padding:    var(--space-20) 0;
  overflow:   hidden;
  transition: background var(--transition-slow);
}

/* --- Container -------------------------------------------- */
.wcb__container {
  width:          100%;
  max-width:      var(--container-xl);
  margin-inline:  auto;
  padding-inline: var(--space-6);
}

@media (min-width: 768px)  { .wcb__container { padding-inline: var(--space-10); } }
@media (min-width: 1280px) { .wcb__container { padding-inline: var(--space-16); } }

/* --- En-tête centré --------------------------------------- */
.wcb__header {
  text-align:    center;
  max-width:     640px;
  margin-inline: auto;
  margin-bottom: var(--space-12);
}

.wcb__label-wrap {
  margin-bottom: var(--space-4);
}

.wcb__label {
  display:        inline-block;
  font-size:      var(--text-xs);
  font-weight:    var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color:          var(--color-accent);
  background:     var(--color-accent-subtle);
  border:         1px solid var(--color-accent);
  border-radius:  var(--radius-full);
  padding:        3px var(--space-3);
}

.wcb__title {
  font-size:      var(--text-4xl);
  font-weight:    var(--font-weight-bold);
  line-height:    1.15;
  letter-spacing: -0.025em;
  color:          var(--color-text);
  margin-bottom:  var(--space-4);
  transition:     color var(--transition-slow);
}

@media (max-width: 767px) {
  .wcb__title { font-size: var(--text-3xl); }
}

.wcb__subtitle {
  font-size:   var(--text-lg);
  line-height: var(--line-height-base);
  color:       var(--color-text-muted);
  margin:      0;
}

/* --- Grille 3 colonnes ------------------------------------ */
.wcb__grid {
  display:               grid;
  grid-template-columns: 1fr;
  gap:                   var(--space-5);
}

@media (min-width: 768px) {
  .wcb__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .wcb__grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
}

/* ============================================================
   CAPABILITY CARD
   ============================================================ */
.capability-card {
  display:        flex;
  flex-direction: column;
  gap:            var(--space-4);
  padding:        var(--space-6);
  background:     var(--color-card);
  border:         1px solid var(--color-border);
  border-radius:  var(--radius-lg);
  box-shadow:     0 1px 4px rgba(0, 0, 0, 0.10);
  transition:
    transform    var(--transition-base),
    box-shadow   var(--transition-base),
    border-color var(--transition-base);
}

.capability-card:hover {
  transform:    translateY(-4px);
  box-shadow:   var(--shadow-md), 0 0 0 1px var(--color-accent-subtle);
  border-color: var(--color-accent-subtle);
}

/* --- Icône ------------------------------------------------ */
.capability-card__icon {
  display:         flex;
  align-items:     center;
  justify-content: center;
  width:           48px;
  height:          48px;
  border-radius:   var(--radius-md);
  background:      var(--color-accent-subtle);
  color:           var(--color-accent);
  flex-shrink:     0;
}

/* --- Titre ------------------------------------------------ */
.capability-card__title {
  font-size:   var(--text-xl);
  font-weight: var(--font-weight-semibold);
  line-height: 1.2;
  color:       var(--color-text);
  margin:      0;
  transition:  color var(--transition-fast);
}

.capability-card:hover .capability-card__title {
  color: var(--color-accent);
}

/* --- Description ------------------------------------------ */
.capability-card__description {
  font-size:   var(--text-sm);
  line-height: var(--line-height-relaxed);
  color:       var(--color-text-muted);
  margin:      0;
  flex:        1;
}

/* --- Action ----------------------------------------------- */
.capability-card__action {
  margin-top: var(--space-2);
}

.capability-card__action .btn {
  font-size:   var(--text-sm);
  padding:     6px var(--space-4);
  gap:         var(--space-2);
}

.capability-card__action .btn svg {
  flex-shrink: 0;
  transition:  transform var(--transition-fast);
}

.capability-card__action .btn:hover svg {
  transform: translateX(3px);
}

/* ============================================================
   VARIANTE AI — fond alterné
   ============================================================ */
.wcb--ai {
  background: var(--color-card);
}

.wcb--ai .capability-card {
  background: var(--color-bg);
}

/* ============================================================
   ANIMATIONS D'ENTRÉE (IntersectionObserver)
   ============================================================ */
.wcb__header,
.capability-card {
  opacity:    0;
  transform:  translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.capability-card:nth-child(1) { transition-delay: 0.00s; }
.capability-card:nth-child(2) { transition-delay: 0.07s; }
.capability-card:nth-child(3) { transition-delay: 0.14s; }
.capability-card:nth-child(4) { transition-delay: 0.21s; }
.capability-card:nth-child(5) { transition-delay: 0.28s; }
.capability-card:nth-child(6) { transition-delay: 0.35s; }

.wcb__header { transition-delay: 0.00s; transition-duration: 0.6s; }

.wcb--visible .wcb__header,
.wcb--visible .capability-card {
  opacity:   1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .wcb__header,
  .capability-card {
    opacity:    1 !important;
    transform:  none !important;
    transition: none !important;
  }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 767px) {
  .wcb { padding: var(--space-16) 0; }

  .wcb__header   { margin-bottom: var(--space-8); }
  .capability-card { padding: var(--space-5); }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .wcb__title { font-size: var(--text-4xl); }
}