/* ============================================
   Features Section Component
   ============================================ */

.features {
  width: 100%;
  max-width: var(--container-max);
  margin: var(--space-14) auto 0;
  padding: 0 var(--space-1);
}

.features__header {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  text-align: center;
  margin-bottom: var(--space-6);
}

.features__intro {
  max-width: 48rem;
  margin: 0 auto;
}

/* Grid layout */
.features__grid {
  display: grid;
  gap: var(--space-4);
}

.features__column {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* Feature card - Enhanced with audio theme */
.feature-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition-slow);
  overflow: hidden;
}

/* Animated gradient border pseudo-element */
.feature-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: var(--gradient-audio);
  background-size: 300% 100%;
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-slow);
  animation: gradient-border-shift 4s linear infinite paused;
}

/* Hover effects */
.feature-card:hover {
  transform: translateY(-4px);
  border-color: transparent;
  box-shadow: var(--shadow-card-hover);
}

.feature-card:hover::before {
  opacity: 0.6;
  animation-play-state: running;
}

@keyframes gradient-border-shift {
  0% { background-position: 0% 50%; }
  100% { background-position: 300% 50%; }
}

/* Card header with icon and title */
.feature-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.feature-card__icon {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.feature-card__title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

.feature-card__badge {
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, rgba(107, 63, 255, 0.2), rgba(255, 77, 138, 0.2));
  border: 1px solid rgba(138, 43, 226, 0.3);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-accent);
}

.feature-card__description {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
}

/* Demo containers */
.feature-card__demo {
  margin-top: var(--space-2);
}

/* Lottie animation container */
.lottie-container {
  display: flex;
  justify-content: center;
  padding-top: var(--space-2);
}

/* Speed perks list */
.speed-perks {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  list-style: none;
}

.speed-perks__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.speed-perks__icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--color-accent);
}

/* Responsive */
@media (min-width: 768px) {
  .features__header {
    text-align: left;
  }

  .features__intro {
    margin: 0;
  }

  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Specific heights for cards */
  .feature-card--transcription {
    min-height: 280px;
  }

  .feature-card--fine-tuning {
    min-height: 170px;
  }

  .feature-card--vocabulary {
    min-height: 170px;
  }

  .feature-card--privacy {
    height: 144px;
  }
}