/* 페이지 헤더 스타일 */
.page-header {
  background: linear-gradient(135deg, var(--penguin-navy) 0%, var(--penguin-skyblue) 100%);
  color: white;
  padding: 40px 0;
  margin-top: 44px; /* 헤더 높이만큼 여백 */
}

.page-header .container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.back-link {
  display: flex;
  align-items: center;
  gap: 8px;
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
  padding: 8px 16px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.back-link:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}

.back-arrow {
  font-size: 18px;
  font-weight: bold;
}

/* notice.css의 ::before 화살표 중복 방지 */
.page-header .back-link::before {
  content: none;
}

.page-title {
  flex: 1;
  text-align: center;
}

.page-title h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin: 0 0 8px 0;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* .page-subtitle 스타일은 subject.css에서 관리 */

/* 반응형 디자인 */
@media (max-width: 768px) {
  .page-header {
    padding: 24px 0;
    margin-top: 44px;
  }
  
  .page-header .container {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
  
  .page-title h1 {
    font-size: 2rem;
  }
  
  
  .back-link {
    align-self: flex-start;
  }
}

@media (max-width: 480px) {
  .page-header {
    padding: 20px 0;
  }
  
  .page-title h1 {
    font-size: 1.75rem;
  }
  
}