/* Estilos específicos educacionales */
html {
  scroll-behavior: smooth;
}

.step-card {
  background: var(--bg-elevated);
  border-radius: 20px;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.step-card:hover {
  border-color: rgba(59, 130, 246, 0.5);
  transform: translateY(-3px);
}

.video-placeholder {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.5), rgba(15, 23, 42, 0.5));
  border: 2px dashed rgba(71, 85, 105, 0.5);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  aspect-ratio: 16/9;
  cursor: pointer;
  transition: all 0.3s ease;
}

.video-placeholder:hover {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(16, 185, 129, 0.05));
  border-color: rgba(59, 130, 246, 0.5);
}

.video-play-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 24px;
  box-shadow: 0 10px 25px rgba(59, 130, 246, 0.5);
  transition: transform 0.2s;
}

.video-placeholder:hover .video-play-btn {
  transform: scale(1.1);
}

.number-badge {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 900;
  color: white;
  background: linear-gradient(135deg, #3b82f6, #6366f1);
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
  flex-shrink: 0;
}

.academia-grid-bg {
  background-image: radial-gradient(#3b82f6 1px, transparent 1px);
  background-size: 32px 32px;
}

.academia-step-alt-bg {
  background: linear-gradient(180deg, #0d1117, #05070a);
}

.academia-step-highlight-bg {
  background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.1), transparent 400px), var(--bg-elevated);
}

.academia-badge-step-2 {
  background: linear-gradient(135deg, #10b981, #059669);
}

.academia-badge-step-3 {
  background: linear-gradient(135deg, #f59e0b, #d97706);
}

.academia-badge-step-4 {
  background: linear-gradient(135deg, #a855f7, #7e22ce);
}

.academia-video-step-3 {
  border-color: rgba(245, 158, 11, 0.4);
}

.academia-video-step-3-btn {
  background: rgba(245, 158, 11, 0.9);
  box-shadow: 0 10px 25px rgba(245, 158, 11, 0.4);
}