/* ============================================================
   MOMENTI INTERIOR — usp.css
   ============================================================ */

.usp-section {
  background: var(--color-surface);
  padding-block: var(--space-24) var(--space-32);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

/* linea decorativa orizzontale dorata */
.usp-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: var(--container-pad);
  right: var(--container-pad);
  height: 1px;
  background: linear-gradient(
    to right,
    transparent,
    var(--color-gold) 30%,
    var(--color-gold) 70%,
    transparent
  );
  opacity: 0.25;
}

/* ── CONTAINER ── */
.usp-container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* ── HEADER ── */
.usp-header {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-16);
  max-width: 600px;
}

/* ── GRID ── */
.usp-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--color-border);
}

/* ── ITEM ── */
.usp-item {
  padding: var(--space-12) var(--space-10);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-5);
  position: relative;
  transition: background var(--transition-base);
}

.usp-item:last-child {
  border-right: none;
}

.usp-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-gold);
  transition: width var(--transition-slow);
}

.usp-item:hover {
  background: rgba(255, 255, 255, 0.02);
}

.usp-item:hover::after {
  width: 100%;
}

/* ── ICONA ── */
.usp-icon {
  color: var(--color-gold);
  opacity: 0.75;
  transition: opacity var(--transition-base), transform var(--transition-base);
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.usp-item:hover .usp-icon {
  opacity: 1;
  transform: translateY(-3px);
}

.usp-icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
}

/* ── TITOLO ── */
.usp-title {
  font-family: var(--font-display);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-regular);
  color: var(--color-text-primary);
  line-height: var(--line-height-snug);
  letter-spacing: var(--letter-spacing-tight);
}

/* ── TESTO ── */
.usp-text {
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-light);
  color: var(--color-text-muted);
  line-height: var(--line-height-loose);
}

/* ── RESPONSIVE ── */
@media (max-width: 1100px) {
  .usp-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .usp-item:nth-child(2) {
    border-right: none;
  }

  .usp-item:nth-child(1),
  .usp-item:nth-child(2) {
    border-bottom: 1px solid var(--color-border);
  }
}

@media (max-width: 600px) {
  .usp-grid {
    grid-template-columns: 1fr;
  }

  .usp-item {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-10) var(--space-8);
  }

  .usp-item:last-child {
    border-bottom: none;
  }
}