/* ==========================================================================
   u.cash - Features Section
   Section with heading, 6-card grid, stagger reveal animations.
   ========================================================================== */

/* ---- Features Section ---- */

.features-section {
  position: relative;
  padding-block: var(--space-5xl);
  background: var(--color-bg-primary);
  overflow: hidden;
}

/* Subtle background decoration */
.features-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    var(--color-gold-subtle) 0%,
    transparent 70%
  );
  pointer-events: none;
}

/* ---- Features Header ---- */

.features-header {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-3xl);
  position: relative;
}

.features-header .section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-gold-primary);
  margin-bottom: var(--space-md);
}

.features-header .section-label::before,
.features-header .section-label::after {
  content: '';
  width: 20px;
  height: 1px;
  background: var(--color-gold-primary);
}

.features-header h2 {
  margin-bottom: var(--space-md);
}

.features-header p {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

/* ---- Features Grid ---- */

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* ---- Feature Card ---- */

.feature-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-xl);
  background: var(--color-glass-bg);
  backdrop-filter: blur(var(--blur-md));
  -webkit-backdrop-filter: blur(var(--blur-md));
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  transition:
    transform var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background-color var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-gold-glow);
  box-shadow: var(--shadow-glass-hover), var(--shadow-gold);
  background: var(--color-glass-bg-hover);
}

/* Subtle gradient overlay on hover */
.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    var(--color-gold-subtle) 0%,
    transparent 50%
  );
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.feature-card:hover::before {
  opacity: 1;
}

/* ---- Feature Card Content ---- */

.feature-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: linear-gradient(
    135deg,
    var(--color-gold-muted),
    var(--color-gold-subtle)
  );
  margin-bottom: var(--space-lg);
  position: relative;
  z-index: 1;
}

.feature-card-icon svg,
.feature-card-icon img {
  width: 24px;
  height: 24px;
}

.feature-card-icon svg {
  fill: var(--color-gold-primary);
}

.feature-card-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
  position: relative;
  z-index: 1;
}

.feature-card-description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  position: relative;
  z-index: 1;
}

.feature-card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-gold-primary);
  text-decoration: none;
  margin-top: var(--space-lg);
  position: relative;
  z-index: 1;
  transition: gap var(--transition-fast), color var(--transition-fast);
}

.feature-card-link:hover {
  gap: var(--space-sm);
  color: var(--color-gold-light);
}

.feature-card-link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.feature-card-link:hover svg {
  transform: translateX(2px);
}

/* ---- Stagger Animation Delays ---- */

.features-grid .feature-card:nth-child(1) { transition-delay: 0.05s; }
.features-grid .feature-card:nth-child(2) { transition-delay: 0.1s; }
.features-grid .feature-card:nth-child(3) { transition-delay: 0.15s; }
.features-grid .feature-card:nth-child(4) { transition-delay: 0.2s; }
.features-grid .feature-card:nth-child(5) { transition-delay: 0.25s; }
.features-grid .feature-card:nth-child(6) { transition-delay: 0.3s; }

/* ---- Responsive Grid ---- */

@media (min-width: 576px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
  }
}

@media (min-width: 992px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .feature-card {
    padding: var(--space-2xl);
  }
}

@media (max-width: 575.98px) {
  .features-header h2 {
    font-size: var(--text-3xl);
  }

  .features-header p {
    font-size: var(--text-base);
  }
}