/**
 * Features/Advantages Section - TecnoMax v2.0
 */

.features-section {
  background-color: var(--color-bg-primary);
  padding: var(--sp-3xl) var(--sp-lg);
  position: relative;
}

.features-header {
  text-align: center;
  margin-bottom: var(--sp-2xl);
}

.features-header h2 {
  color: var(--color-text-primary);
  margin-bottom: var(--sp-md);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

@media (max-width: 1023px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   FEATURE CARD
   ============================================ */
.feature-card {
  padding: 2rem;
  text-align: center;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  background-color: transparent;
}

/* Alternating background */
.feature-card:nth-child(even) {
  background-color: rgba(124, 58, 237, 0.05);
  border-radius: var(--radius-lg);
}

/* ============================================
   FEATURE ICON
   ============================================ */
.feature-icon {
  font-size: 3rem;
  line-height: 1;
  margin-bottom: 1rem;
  display: inline-block;
  transition: all var(--transition-base);
}

.feature-card:hover .feature-icon {
  transform: scale(1.15);
  filter: drop-shadow(0 0 20px rgba(0, 217, 255, 0.3));
}

/* ============================================
   FEATURE TITLE
   ============================================ */
.feature-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 1rem;
  transition: color var(--transition-base);
}

.feature-card:hover .feature-title {
  color: var(--color-accent-cyan);
}

/* ============================================
   FEATURE DESCRIPTION
   ============================================ */
.feature-description {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* ============================================
   FEATURE NUMBER (Background)
   ============================================ */
.feature-number {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-family: 'Oxanium', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent-cyan);
  opacity: 0.15;
  z-index: 0;
  pointer-events: none;
}

/* ============================================
   GRADIENT ANIMATION ON HOVER
   ============================================ */
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(0, 217, 255, 0.1) 0%,
    rgba(124, 58, 237, 0.05) 100%
  );
  transition: left var(--transition-base);
  z-index: 0;
}

.feature-card:hover::before {
  left: 0;
}

/* Ensure content stays on top */
.feature-card > * {
  position: relative;
  z-index: 1;
}

/* ============================================
   STAGGER ANIMATION
   ============================================ */
.feature-card {
  animation: feature-appear 0.6s ease-out backwards;
}

.feature-card:nth-child(1) { animation-delay: 0s; }
.feature-card:nth-child(2) { animation-delay: 0.1s; }
.feature-card:nth-child(3) { animation-delay: 0.2s; }
.feature-card:nth-child(4) { animation-delay: 0.3s; }

@keyframes feature-appear {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}