/* ==========================================================================
   게시판 스타일
   ========================================================================== */

/* 탭 컨테이너 스타일 */
.posts-tabs-section {
  margin-bottom: var(--spacing-lg);
}

.tabs-navigation {
  display: flex;
  border-bottom: 2px solid var(--gray-200);
  margin-bottom: var(--spacing-lg);
}

.tab-btn {
  background: none;
  border: none;
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  color: var(--gray-600);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.tab-btn:hover {
  color: var(--primary-color);
  background-color: var(--gray-50);
}

.tab-btn.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  background-color: var(--primary-color-alpha);
}

.tab-count {
  background-color: var(--gray-200);
  color: var(--gray-600);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
}

.tab-btn.active .tab-count {
  background-color: var(--primary-color);
  color: var(--white);
}

.tabs-content {
  position: relative;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* 게시판 컨테이너 */
.posts-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* 검색 및 필터 섹션 */
.search-section {
  background: var(--primary-color);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: 0 8px 25px rgba(44, 62, 80, 0.15);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--primary-light);
}

.search-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
  pointer-events: none;
}

.search-header {
  text-align: center;
  margin-bottom: 2rem;
  position: relative;
  z-index: 1;
}

.search-title {
  color: var(--white);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.search-description {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1rem;
  margin: 0;
}

.search-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  position: relative;
  z-index: 1;
}

@media (min-width: 768px) {
  .search-form {
    grid-template-columns: 2fr 1fr auto;
    align-items: end;
  }
}

.search-input-group,
.search-select-group {
  position: relative;
}

.search-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.search-icon {
  width: 16px;
  height: 16px;
  color: rgba(255, 255, 255, 0.8);
}

.search-input,
.search-select {
  width: 100%;
  padding: 1rem 1.25rem;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  font-size: 1rem;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  color: var(--gray-800);
}

.search-input::placeholder {
  color: var(--gray-500);
}

.search-input:focus,
.search-select:focus {
  outline: none;
  border-color: var(--secondary-color);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
  transform: translateY(-1px);
}

.search-input:hover,
.search-select:hover {
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-1px);
}

.search-button {
  background: var(--secondary-color);
  color: var(--white);
  padding: 1rem 2rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
  position: relative;
  overflow: hidden;
}

.search-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.search-button:hover::before {
  left: 100%;
}

.search-button:hover {
  background: var(--secondary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}

.search-button:active {
  transform: translateY(0);
}

.search-button-icon {
  width: 18px;
  height: 18px;
}

/* 검색 결과 없음 상태 */
.search-no-results {
  text-align: center;
  padding: 3rem 1rem;
  color: #6b7280;
}

.search-no-results svg {
  width: 64px;
  height: 64px;
  margin: 0 auto 1rem;
  color: #d1d5db;
}

/* 로딩 상태 */
.search-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.875rem;
}

.search-loading .spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top: 2px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 반응형 디자인 */
@media (max-width: 640px) {
  .search-section {
    padding: 1.5rem;
    border-radius: 16px;
  }
  
  .search-title {
    font-size: 1.5rem;
  }
  
  .search-form {
    gap: 1rem;
  }
  
  .search-input,
  .search-select,
  .search-button {
    padding: 0.875rem 1rem;
  }
}

/* 게시글 작성 버튼 */
.posts-write-button {
  background-color: var(--success-color);
  color: var(--white);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--border-radius);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  display: inline-block;
  transition: background-color var(--transition-fast);
}

.posts-write-button:hover {
  background-color: var(--success-dark);
}

/* 게시글 목록 */
.posts-list {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  overflow: hidden;
}

.post-item {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--gray-100);
  transition: background-color var(--transition-fast);
}

.post-item:hover {
  background-color: var(--gray-50);
}

.post-item:last-child {
  border-bottom: none;
}

.post-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--spacing-sm);
}

.post-category {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-sm);
}

.post-category.notice {
  background-color: var(--error-light);
  color: var(--error-dark);
}

.post-category.news {
  background-color: var(--info-light);
  color: var(--info-dark);
}

.post-category.faq {
  background-color: var(--success-light);
  color: var(--success-dark);
}

.post-status {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  background-color: var(--warning-light);
  color: var(--warning-dark);
  margin-left: var(--spacing-sm);
}

.post-title {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--gray-900);
  margin-bottom: var(--spacing-sm);
  line-height: 1.4;
}

.post-title a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.post-title a:hover {
  color: var(--primary-color);
}

.post-content {
  color: var(--gray-600);
  font-size: var(--text-sm);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-size: var(--text-xs);
  color: var(--gray-500);
}

.post-meta-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.post-meta-icon {
  width: 14px;
  height: 14px;
  color: var(--gray-400);
}

.post-attachment-icon {
  width: 20px;
  height: 20px;
  color: var(--gray-400);
  flex-shrink: 0;
}

/* 페이징 */
.posts-pagination {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pagination-info {
  font-size: var(--text-sm);
  color: var(--gray-600);
}

.pagination-controls {
  display: flex;
  gap: var(--spacing-xs);
}

.pagination-button {
  padding: var(--spacing-xs) var(--spacing-sm);
  border: 1px solid var(--gray-300);
  border-radius: var(--border-radius);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--gray-700);
  background-color: var(--white);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.pagination-button:hover {
  background-color: var(--gray-50);
  border-color: var(--gray-400);
}

.pagination-button.active {
  background-color: var(--primary-color);
  color: var(--white);
  border-color: var(--primary-color);
}

.pagination-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 빈 상태 */
.posts-empty {
  padding: var(--spacing-xl);
  text-align: center;
}

.posts-empty-icon {
  width: 48px;
  height: 48px;
  color: var(--gray-400);
  margin: 0 auto var(--spacing-md);
}

.posts-empty-title {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-medium);
  color: var(--gray-900);
  margin-bottom: var(--spacing-xs);
}

.posts-empty-description {
  font-size: var(--text-sm);
  color: var(--gray-500);
}

/* 게시글 상세 페이지 */
.post-detail-header {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.post-detail-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--gray-900);
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
}

.post-detail-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  font-size: var(--text-sm);
  color: var(--gray-500);
  margin-bottom: var(--spacing-md);
}

.post-detail-meta-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.post-detail-meta-icon {
  width: 16px;
  height: 16px;
  color: var(--gray-400);
}

.post-detail-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.post-detail-button {
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.post-detail-button.edit {
  background-color: var(--primary-color);
  color: var(--white);
}

.post-detail-button.edit:hover {
  background-color: var(--primary-dark);
}

.post-detail-button.delete {
  background-color: var(--error-color);
  color: var(--white);
}

.post-detail-button.delete:hover {
  background-color: var(--error-dark);
}

.post-detail-content {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.post-detail-content .prose {
  max-width: none;
  color: var(--gray-900);
  line-height: 1.7;
}

.post-detail-content .prose h1,
.post-detail-content .prose h2,
.post-detail-content .prose h3,
.post-detail-content .prose h4,
.post-detail-content .prose h5,
.post-detail-content .prose h6 {
  color: var(--gray-900);
  font-weight: var(--font-weight-semibold);
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
}

.post-detail-content .prose p {
  margin-bottom: var(--spacing-md);
}

.post-detail-content .prose ul,
.post-detail-content .prose ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

.post-detail-content .prose li {
  margin-bottom: var(--spacing-xs);
}

.post-detail-content .prose a {
  color: var(--primary-color);
  text-decoration: underline;
}

.post-detail-content .prose a:hover {
  color: var(--primary-dark);
}

.post-detail-content .prose blockquote {
  border-left: 4px solid var(--primary-color);
  padding-left: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  font-style: italic;
  color: var(--gray-600);
}

.post-detail-content .prose code {
  background-color: var(--gray-100);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

.post-detail-content .prose pre {
  background-color: var(--gray-900);
  color: var(--gray-100);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  overflow-x: auto;
  margin: var(--spacing-lg) 0;
}

.post-detail-content .prose pre code {
  background-color: transparent;
  padding: 0;
  color: inherit;
}

/* 첨부파일 */
.post-attachments {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.post-attachments-title {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--gray-900);
  margin-bottom: var(--spacing-md);
}

.post-attachment-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  background-color: var(--gray-50);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-sm);
}

.post-attachment-item:last-child {
  margin-bottom: 0;
}

.post-attachment-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.post-attachment-icon {
  width: 32px;
  height: 32px;
  color: var(--primary-color);
  flex-shrink: 0;
}

.post-attachment-details h4 {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--gray-900);
  margin-bottom: var(--spacing-xs);
}

.post-attachment-details p {
  font-size: var(--text-xs);
  color: var(--gray-500);
}

.post-attachment-download {
  background-color: var(--primary-color);
  color: var(--white);
  padding: var(--spacing-xs) var(--spacing-md);
  border: none;
  border-radius: var(--border-radius);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.post-attachment-download:hover {
  background-color: var(--primary-dark);
}

/* 관련 게시글 */
.post-related {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.post-related-title {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--gray-900);
  margin-bottom: var(--spacing-md);
}

.post-related-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  transition: background-color var(--transition-fast);
}

.post-related-item:hover {
  background-color: var(--gray-50);
}

.post-related-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.post-related-category {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
}

.post-related-category.notice {
  background-color: var(--error-light);
  color: var(--error-dark);
}

.post-related-category.news {
  background-color: var(--info-light);
  color: var(--info-dark);
}

.post-related-category.faq {
  background-color: var(--success-light);
  color: var(--success-dark);
}

.post-related-title {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--gray-900);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.post-related-title:hover {
  color: var(--primary-color);
}

.post-related-date {
  font-size: var(--text-xs);
  color: var(--gray-500);
}

/* 액션 버튼 */
.post-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--spacing-lg);
}

.post-action-button {
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.post-action-button.secondary {
  background-color: var(--gray-600);
  color: var(--white);
}

.post-action-button.secondary:hover {
  background-color: var(--gray-700);
}

.post-action-button.primary {
  background-color: var(--primary-color);
  color: var(--white);
}

.post-action-button.primary:hover {
  background-color: var(--primary-dark);
}

.post-navigation {
  display: flex;
  gap: var(--spacing-sm);
}

/* 반응형 디자인 */
@media (max-width: 768px) {
  .post-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }
  
  .post-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }
  
  .post-detail-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }
  
  .post-detail-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .post-attachment-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }
  
  .post-related-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }
  
  .post-actions {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .post-navigation {
    width: 100%;
    justify-content: space-between;
  }
}

/* 다크 모드 지원 */
@media (prefers-color-scheme: dark) {
  .posts-search-section,
  .posts-list,
  .post-detail-header,
  .post-detail-content,
  .post-attachments,
  .post-related {
    background-color: var(--gray-800);
    border-color: var(--gray-700);
  }
  
  .post-item:hover {
    background-color: var(--gray-700);
  }
  
  .post-title,
  .post-detail-title {
    color: var(--gray-100);
  }
  
  .post-content,
  .post-detail-content .prose {
    color: var(--gray-300);
  }
  
  .post-meta,
  .post-detail-meta {
    color: var(--gray-400);
  }
  
  .post-attachment-item {
    background-color: var(--gray-700);
  }
  
  .post-related-item:hover {
    background-color: var(--gray-700);
  }
}