/* Home — advantages Solar Glass Cards (ТЗ §3) */

.advantages-section .section-header {
  margin-bottom: var(--space-5);
}

.advantages-section .section-subtitle {
  display: inline-block;
  margin-bottom: var(--space-2);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.advantages-section .section-title {
  margin: 0 0 var(--space-2);
}

.advantages-section .section-description {
  margin: 0;
  max-width: 40rem;
}

.advantages-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
  min-width: 0;
  max-width: 100%;
}

.advantage-card {
  --mouse-x: 50%;
  --mouse-y: 50%;
  position: relative;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 2.25rem 1.75rem;
  background: rgb(255 255 255 / 0.88);
  -webkit-backdrop-filter: blur(14px) saturate(1.15);
  backdrop-filter: blur(14px) saturate(1.15);
  border: 1px solid rgb(108 86 133 / 0.08);
  border-radius: 1.5rem;
  box-shadow: 0 4px 20px rgb(0 0 0 / 0.02);
  overflow: hidden;
  cursor: default;
  transition:
    transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
    box-shadow 0.4s ease,
    border-color 0.3s ease,
    opacity 0.55s var(--ease);
}

.card-number {
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  z-index: 2;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  color: rgb(108 86 133 / 0.06);
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
  transition: color 0.3s ease, transform 0.3s ease;
}

.advantage-card:hover .card-number {
  color: rgb(230 134 26 / 0.4);
  transform: translateY(-2px) scale(1.05);
}

.advantage-icon-wrap {
  position: relative;
  z-index: 2;
  width: 3.75rem;
  height: 3.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  border-radius: 1rem;
  background: var(--c-soft);
  color: var(--c-brand);
  transition:
    transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1),
    background 0.3s ease,
    box-shadow 0.3s ease;
}

.advantage-icon {
  width: 1.75rem;
  height: 1.75rem;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.advantage-card:hover .advantage-icon-wrap {
  background: #e6861a;
  color: var(--c-brand);
  transform: scale(1.12) rotate(6deg);
  box-shadow:
    0 8px 24px rgb(230 134 26 / 0.6),
    0 0 12px rgb(245 180 74 / 0.8);
}

.advantage-title {
  position: relative;
  z-index: 2;
  margin: 0 0 0.625rem;
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--c-brand);
}

.advantage-desc {
  position: relative;
  z-index: 2;
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--c-muted);
}

.card-glow-layer {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: radial-gradient(
    600px circle at var(--mouse-x) var(--mouse-y),
    rgb(230 134 26 / 0.15),
    transparent 40%
  );
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.advantage-card:hover {
  border-color: rgb(230 134 26 / 0.8);
  box-shadow:
    0 16px 36px rgb(108 86 133 / 0.08),
    0 0 20px rgb(230 134 26 / 0.25);
}

.advantage-card:hover .card-glow-layer {
  opacity: 1;
}

@media (min-width: 768px) {
  .advantages-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .advantages-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@supports (-webkit-touch-callout: none) {
  .advantages-section {
    overflow-x: clip;
  }

  .advantage-card {
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
  }
}

@media (max-width: 767px) {
  .advantage-card {
    padding: 1.5rem 1.25rem;
    border-radius: 1.25rem;
  }

  .card-number {
    top: 1rem;
    right: 1.1rem;
    font-size: 1.65rem;
  }

  .advantage-icon-wrap {
    width: 3.25rem;
    height: 3.25rem;
    margin-bottom: 1.15rem;
  }

  .advantage-icon {
    width: 1.5rem;
    height: 1.5rem;
  }

  .advantage-title {
    font-size: 1.0625rem;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .advantage-card {
    opacity: 0;
    transform: translateY(1.75rem);
  }

  .advantages-section.is-visible .advantage-card {
    opacity: 1;
    transform: translateY(0);
    transition-delay: calc(var(--stagger, 1) * 0.1s);
  }

  .advantages-section.is-visible .advantage-card.is-settled {
    transition-delay: 0s;
  }

  .advantages-section.is-visible .advantage-card.is-settled:hover {
    transform: translateY(-8px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .advantage-card,
  .advantage-icon-wrap,
  .card-glow-layer,
  .card-number {
    transition: none;
  }

  .advantage-card:hover {
    transform: none;
  }

  .advantage-card:hover .advantage-icon-wrap {
    transform: none;
  }

  .advantage-card:hover .card-glow-layer {
    opacity: 0;
  }
}

@media (hover: none) {
  .card-glow-layer {
    display: none;
  }
}