/**
 * Reusable icon grid section: title, optional subtitle, grid of icon + title + description boxes.
 */
.icon-grid {
  padding: var(--space-3xl) var(--container-padding);
  background: var(--color-bg);
}

.icon-grid__inner {
  max-width: var(--container-max);
  margin: 0 auto;
}

.icon-grid__title {
  margin: 0 0 var(--space-md);
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  text-align: center;
}

.icon-grid__subtitle {
  margin: 0 0 var(--space-2xl);
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-muted);
  text-align: center;
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
}

.icon-grid__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

/* 4-column variant for uitdagingen subpages */
.icon-grid--cols-4 .icon-grid__grid {
  grid-template-columns: repeat(4, 1fr);
}

.icon-grid__box {
  padding: var(--space-xl);
  background: var(--color-bg-header);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.icon-grid__box:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12), 0 4px 8px rgba(242, 147, 24, 0.15);
}

.icon-grid__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  margin-bottom: var(--space-md);
  border-radius: var(--radius-lg);
  color: #fff;
  font-size: var(--font-size-2xl);
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 45%, var(--color-primary) 100%);
  background-size: 200% 200%;
  background-position: 0% 0;
  transition: background-position var(--transition-normal), transform var(--transition-normal);
}

.icon-grid__box:hover .icon-grid__icon {
  background-position: 100% 100%;
  transform: scale(1.1);
}

.icon-grid__icon i {
  color: inherit;
}

/* Load-in: gradient sweep on icons, first to last, staggered; ends at default so hover works */
@keyframes icon-grid-sweep {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 0; }
}

.icon-grid.is-visible .icon-grid__box:nth-child(1) .icon-grid__icon { animation: icon-grid-sweep 0.5s ease forwards; }
.icon-grid.is-visible .icon-grid__box:nth-child(2) .icon-grid__icon { animation: icon-grid-sweep 0.5s ease 0.08s forwards; }
.icon-grid.is-visible .icon-grid__box:nth-child(3) .icon-grid__icon { animation: icon-grid-sweep 0.5s ease 0.16s forwards; }
.icon-grid.is-visible .icon-grid__box:nth-child(4) .icon-grid__icon { animation: icon-grid-sweep 0.5s ease 0.24s forwards; }
.icon-grid.is-visible .icon-grid__box:nth-child(5) .icon-grid__icon { animation: icon-grid-sweep 0.5s ease 0.32s forwards; }
.icon-grid.is-visible .icon-grid__box:nth-child(6) .icon-grid__icon { animation: icon-grid-sweep 0.5s ease 0.4s forwards; }
.icon-grid.is-visible .icon-grid__box:nth-child(7) .icon-grid__icon { animation: icon-grid-sweep 0.5s ease 0.48s forwards; }
.icon-grid.is-visible .icon-grid__box:nth-child(8) .icon-grid__icon { animation: icon-grid-sweep 0.5s ease 0.56s forwards; }
.icon-grid.is-visible .icon-grid__box:nth-child(9) .icon-grid__icon { animation: icon-grid-sweep 0.5s ease 0.64s forwards; }

@media (prefers-reduced-motion: reduce) {
  .icon-grid.is-visible .icon-grid__box .icon-grid__icon {
    animation: none;
  }
}

.icon-grid__box-title {
  margin: 0 0 var(--space-sm);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: #020817;
}

.icon-grid__box-desc {
  margin: 0;
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-muted);
}

@media (max-width: 64rem) {
  .icon-grid__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .icon-grid--cols-4 .icon-grid__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 48rem) {
  .icon-grid {
    padding: var(--space-2xl) var(--container-padding);
  }

  .icon-grid__title {
    font-size: var(--font-size-2xl);
  }

  .icon-grid__subtitle {
    font-size: var(--font-size-base);
  }

  .icon-grid__grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}