/* 페이지 공통 스타일 */

/* ============================================
   페이지 헤더
   ============================================ */

.page-header {
  background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 100%);
  padding: 6rem 0 4rem;
  margin-top: 5rem;
  text-align: center;
  color: var(--white);
}

.page-title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

@media (min-width: 768px) {
  .page-title {
    font-size: 3.5rem;
  }
}

.page-divider {
  width: 4rem;
  height: 0.25rem;
  background: linear-gradient(to right, transparent, #f97316, transparent);
  margin: 1.5rem auto;
  opacity: 0.8;
}

.page-subtitle {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
  max-width: 40rem;
  margin: 0 auto;
}

/* ============================================
   콘텐츠 섹션
   ============================================ */

.content-section {
  padding: 4rem 0;
  background-color: var(--white);
}

@media (min-width: 768px) {
  .content-section {
    padding: 6rem 0;
  }
}

.content-placeholder {
  text-align: center;
  padding: 4rem 2rem;
  background-color: #f9fafb;
  border-radius: 0.5rem;
  border: 2px dashed var(--gray-300);
}

.content-placeholder p {
  font-size: 1rem;
  color: var(--gray-700);
  margin-bottom: 1rem;
}

.content-placeholder a {
  color: var(--blue-900);
  text-decoration: underline;
  transition: color var(--transition-base);
}

.content-placeholder a:hover {
  color: var(--orange-500);
}

/* ============================================
   페이지별 섹션 스타일
   ============================================ */

/* About 페이지 */
.about-intro {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 4rem;
}

@media (min-width: 1024px) {
  .about-intro {
    grid-template-columns: 1fr 1fr;
  }
}

.about-intro-image {
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-intro-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.about-intro-text h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: bold;
  color: var(--blue-900);
  margin-bottom: 1.5rem;
}

.about-intro-text p {
  font-size: 1rem;
  color: var(--gray-700);
  line-height: 1.8;
  margin-bottom: 1rem;
}

/* Values 그리드 */
.values-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .values-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.value-card {
  padding: 2rem;
  background-color: #f9fafb;
  border-radius: 0.5rem;
  text-align: center;
  transition: all var(--transition-base);
}

.value-card:hover {
  background-color: #eff6fc;
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.value-icon {
  width: 3rem;
  height: 3rem;
  background-color: var(--blue-900);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.5rem;
}

.value-card h3 {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: bold;
  color: var(--blue-900);
  margin-bottom: 0.75rem;
}

.value-card p {
  font-size: 0.95rem;
  color: var(--gray-700);
  line-height: 1.6;
}

/* ============================================
   서비스 페이지
   ============================================ */

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  padding: 2rem;
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 0.5rem;
  transition: all var(--transition-base);
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--orange-500);
  transform: translateY(-4px);
}

.service-card h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: bold;
  color: var(--blue-900);
  margin-bottom: 1rem;
}

.service-card p {
  font-size: 0.95rem;
  color: var(--gray-700);
  line-height: 1.6;
}

/* ============================================
   도서 페이지
   ============================================ */

.books-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 640px) {
  .books-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .books-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.book-card {
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 0.5rem;
  overflow: hidden;
  transition: all var(--transition-base);
}

.book-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.book-cover {
  width: 100%;
  height: 15rem;
  background-color: var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--gray-400);
}

.book-info {
  padding: 1.5rem;
}

.book-title {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: bold;
  color: var(--blue-900);
  margin-bottom: 0.5rem;
}

.book-author {
  font-size: 0.875rem;
  color: var(--orange-500);
  margin-bottom: 0.75rem;
}

.book-description {
  font-size: 0.875rem;
  color: var(--gray-700);
  line-height: 1.6;
}

/* ============================================
   FAQ 페이지
   ============================================ */

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

.accordion-item {
  margin-bottom: 1rem;
  border: 1px solid var(--gray-200);
  border-radius: 0.5rem;
  overflow: hidden;
}

.accordion-header {
  padding: 1.5rem;
  background-color: #f9fafb;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--transition-base);
  user-select: none;
}

.accordion-header:hover {
  background-color: #eff6fc;
}

.accordion-item.open .accordion-header {
  background-color: var(--blue-900);
  color: var(--white);
}

.accordion-title {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: bold;
  margin: 0;
}

.accordion-icon {
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base);
}

.accordion-item.open .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
  background-color: var(--white);
}

.accordion-content.open {
  max-height: 500px;
}

.accordion-body {
  padding: 1.5rem;
  color: var(--gray-700);
  line-height: 1.8;
}

/* ============================================
   폼 스타일
   ============================================ */

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 500;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--gray-300);
  border-radius: 0.25rem;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--blue-900);
  box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 8rem;
}

.form-submit {
  padding: 1rem 2rem;
  background-color: var(--orange-500);
  color: var(--white);
  border-radius: 0.25rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition-base);
}

.form-submit:hover {
  background-color: var(--orange-600);
}

/* ============================================
   반응형 디자인
   ============================================ */

@media (max-width: 640px) {
  .page-title {
    font-size: 1.875rem;
  }

  .page-header {
    padding: 4rem 0 2rem;
  }
}