/* 히어로 섹션 */
.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 100px 20px;
  text-align: center;
  color: white;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: 39px;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 2.0;
}

.hero-subtitle {
  font-size: 18px;
  margin-bottom: 35px;
  opacity: 0.95;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-hero-primary,
.btn-hero-secondary {
  padding: 14px 32px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-block;
}

.btn-hero-primary {
  background: white;
  color: #667eea;
}

.btn-hero-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.btn-hero-secondary {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border: 2px solid white;
}

.btn-hero-secondary:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

/* 소개 섹션 */
.intro-section {
  padding: 80px 20px;
  background: #f5f7fb;
}

.intro-container {
  max-width: 1100px;
  margin: 0 auto;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
  color: #1f2937;
}

.section-description {
  text-align: center;
  font-size: 16px;
  color: #6b7280;
  margin-bottom: 50px;
  line-height: 1.8;
}

/* 기능 카드 그리드 */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.feature-card {
  background: white;
  padding: 32px 24px;
  border-radius: 16px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: #1f2937;
}

.feature-card p {
  font-size: 14px;
  color: #6b7280;
  line-height: 1.6;
}

/* 학교 소개 섹션 */
.school-section {
  padding: 80px 20px;
  background: white;
}

.school-container {
  max-width: 1100px;
  margin: 0 auto;
}

.school-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 50px;
  align-items: center;
  margin-top: 40px;
}

.school-info h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 20px;
  color: #1f2937;
}

.school-info p {
  font-size: 16px;
  color: #4b5563;
  line-height: 1.8;
  margin-bottom: 30px;
}

.school-values {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.school-values li {
  font-size: 16px;
  color: #374151;
  padding: 12px 16px;
  background: #f9fafb;
  border-radius: 10px;
  border-left: 4px solid #667eea;
}

.school-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.school-image img {
  max-width: 100%;
  height: auto;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* CTA 섹션 */
.cta-section {
  padding: 80px 20px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  text-align: center;
  color: white;
}

.cta-container {
  max-width: 700px;
  margin: 0 auto;
}

.cta-container h2 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-container p {
  font-size: 18px;
  margin-bottom: 30px;
  opacity: 0.95;
}

.btn-cta {
  display: inline-block;
  padding: 16px 40px;
  background: white;
  color: #667eea;
  border-radius: 999px;
  font-size: 18px;
  font-weight: 700;
  transition: all 0.3s ease;
}

.btn-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

/* 반응형 디자인 */
@media (max-width: 768px) {
  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .section-title {
    font-size: 28px;
  }

  .school-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .school-image {
    order: -1;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .cta-container h2 {
    font-size: 28px;
  }

  .cta-container p {
    font-size: 16px;
  }
}