.accounting-content {
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px;
}

.accounting-header {
  text-align: center;
  margin-bottom: 40px;
}

.accounting-header h1 {
  margin-bottom: 5px;
  font-size: 28px;
}

.chapter-section {
  margin-bottom: 50px;
}

.chapter-title {
  font-size: 22px;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #333;
}

.chapter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
}

.video-card {
  background: #d6e8ee;
  border: 1px solid #d6e8ee;
  border-radius: 6px;
  padding: 15px;
  transition: all 0.3s ease;
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-card:hover {
  background: #003366;
  border-color: #003366;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.video-card a {
  color: #003366;
  text-decoration: none;
  font-weight: 500;
  text-align: center;
  transition: color 0.3s ease;
}

.video-card:hover a {
  color: white;
}

@media (max-width: 768px) {
  .chapter-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
  }

  .accounting-header h1 {
    font-size: 22px;
  }

  .chapter-title {
    font-size: 18px;
  }

  .video-card {
    padding: 12px;
    min-height: 70px;
    font-size: 14px;
  }
}