:root {
    --primary-color: #1890ff;
    --danger-color: #ff4d4f;
    --success-color: #52c41a;
    --text-color: #333;
    --text-secondary: #666;
    --border-color: #e8e8e8;
    --bg-color: #f5f5f5;
    --card-bg: #fff;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: 60px;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 24px;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
}

.search-box {
    flex: 1;
    max-width: 400px;
}

.search-box input {
    width: 100%;
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    outline: none;
    font-size: 14px;
}

.search-box input:focus {
    border-color: var(--primary-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 8px;
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
}

.avatar-placeholder {
    background: var(--primary-color);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.main-container {
    max-width: 1200px;
    margin: 80px auto 20px;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 200px 1fr 280px;
    gap: 20px;
}

.sidebar {
    position: sticky;
    top: 80px;
    height: fit-content;
}

.nav-list {
    list-style: none;
    background: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.nav-item {
    padding: 12px 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: background-color 0.2s;
}

.nav-item:hover {
    background-color: var(--bg-color);
}

.nav-item.active {
    background-color: #e6f7ff;
    color: var(--primary-color);
}

.nav-item .icon {
    font-size: 18px;
}

.nav-divider {
    height: 1px;
    background: var(--border-color);
    margin: 8px 0;
}

.content {
    min-height: 500px;
}

.quick-post {
    background: var(--card-bg);
    padding: 16px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    cursor: pointer;
}

.quick-post-input {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 14px;
}

.post-card {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
}

.post-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.post-meta {
    flex: 1;
}

.author-info {
    display: flex;
    align-items: center;
    gap: 8px;
}

.author-name {
    font-weight: 600;
}

.department {
    font-size: 12px;
    color: var(--text-secondary);
}

.post-time {
    font-size: 12px;
    color: var(--text-secondary);
}

.category-badge {
    font-size: 12px;
    padding: 2px 8px;
    background: #f0f0f0;
    border-radius: 4px;
}

.post-content {
    margin-bottom: 12px;
    white-space: pre-wrap;
    word-break: break-word;
}

.post-images {
    margin-bottom: 12px;
    display: grid;
    gap: 4px;
}

.post-images.single {
    grid-template-columns: 1fr;
}

.post-images.double {
    grid-template-columns: repeat(2, 1fr);
}

.post-images.grid-2x2 {
    grid-template-columns: repeat(2, 1fr);
}

.post-images.grid-3x3 {
    grid-template-columns: repeat(3, 1fr);
}

.post-image {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
}

.post-location {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.post-actions {
    display: flex;
    gap: 24px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.action-btn {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.action-btn:hover {
    color: var(--primary-color);
}

.action-btn.liked {
    color: var(--danger-color);
}

.likers {
    display: flex;
    gap: 4px;
    margin-top: 8px;
}

.liker-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
}

.comment-section {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.comments-list {
    margin-bottom: 12px;
}

.comment {
    display: flex;
    gap: 8px;
    padding: 8px 0;
}

.comment-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
}

.comment-body {
    flex: 1;
}

.comment-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.comment-author {
    font-weight: 500;
}

.comment-dept {
    color: var(--text-secondary);
    font-size: 12px;
}

.comment-time {
    color: var(--text-secondary);
    font-size: 12px;
}

.comment-content {
    margin-top: 4px;
    font-size: 14px;
}

.comment-input {
    display: flex;
    gap: 8px;
}

.comment-field {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
}

.comment-submit {
    padding: 8px 16px;
    background: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.right-sidebar {
    position: sticky;
    top: 80px;
    height: fit-content;
}

.sidebar-card {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
}

.trending-list {
    list-style: none;
}

.trending-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
}

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

.trending-item .rank {
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
}

.trending-item .topic-name {
    flex: 1;
    font-size: 14px;
}

.trending-item .discussion-count {
    font-size: 12px;
    color: var(--text-secondary);
}

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 20px;
    color: var(--text-secondary);
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

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

.mobile-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 8px 0;
    z-index: 100;
}

.mobile-nav .nav-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 12px;
}

.mobile-nav .nav-btn.active {
    color: var(--primary-color);
}

.fab {
    position: fixed;
    bottom: 80px;
    right: 20px;
    width: 56px;
    height: 56px;
    background: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.9);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: #fff;
    font-size: 32px;
    cursor: pointer;
}

.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.2);
    border: none;
    color: #fff;
    font-size: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
}

.lightbox-prev { left: -60px; }
.lightbox-next { right: -60px; }

@media (max-width: 1024px) {
    .main-container {
        grid-template-columns: 1fr;
    }
    
    .sidebar,
    .right-sidebar {
        display: none;
    }
}

@media (max-width: 768px) {
    .main-container {
        margin-top: 60px;
        padding: 0 12px;
    }
    
    .header-content {
        padding: 0 12px;
    }
    
    .search-box {
        display: none;
    }
    
    .mobile-nav {
        display: flex;
    }
    
    .content {
        padding-bottom: 80px;
    }
}

/* Page styles */
.page {
    min-height: calc(100vh - 80px);
}

.text-muted {
    color: var(--text-secondary);
    text-align: center;
    padding: 20px;
}

/* Search box large */
.search-box-large {
    margin-bottom: 20px;
}

.search-box-large input {
    width: 100%;
    padding: 12px 20px;
    border: 1px solid var(--border-color);
    border-radius: 24px;
    outline: none;
    font-size: 16px;
}

.search-box-large input:focus {
    border-color: var(--primary-color);
}

/* Profile styles */
.profile-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
}

.avatar-large {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
}

.profile-info h2 {
    margin: 0;
}

.profile-stats {
    display: flex;
    gap: 30px;
    padding: 15px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.stat {
    text-align: center;
}

.stat strong {
    display: block;
    font-size: 20px;
    color: var(--text-color);
}

.stat span {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Profile avatar */
.profile-avatar-wrapper {
    position: relative;
}

.change-avatar-btn {
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: #fff;
    border: none;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    cursor: pointer;
    white-space: nowrap;
}

.change-avatar-btn:hover {
    opacity: 0.9;
}

/* Avatar modal */
.avatar-modal-content {
    max-width: 500px;
}

.avatar-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin: 20px 0;
    max-height: 300px;
    overflow-y: auto;
}

.avatar-item {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 3px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    background: #f0f0f0;
    padding: 4px;
}

.avatar-item:hover {
    border-color: var(--primary-color);
    transform: scale(1.1);
}

.avatar-item.selected {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.3);
}

/* Post highlight */
.post-highlight {
    animation: highlight-pulse 2s ease-out;
}

@keyframes highlight-pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(24, 144, 255, 0.4);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(24, 144, 255, 0.1);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(24, 144, 255, 0);
    }
}

/* Post Detail Modal */
.post-detail-modal-content {
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(0,0,0,0.1);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    z-index: 1;
}

.modal-close:hover {
    background: rgba(0,0,0,0.2);
}

.post-detail-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.post-detail-meta {
    flex: 1;
}

.post-detail-meta .author-name {
    font-weight: 600;
    font-size: 16px;
}

.post-detail-meta .post-time {
    color: var(--text-secondary);
    font-size: 13px;
}

.post-detail-content {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 16px;
    white-space: pre-wrap;
}

.post-detail-actions {
    display: flex;
    gap: 20px;
    padding: 12px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.post-detail-comments-section h4 {
    margin-bottom: 12px;
}

.comment-item {
    display: flex;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.avatar-small {
    width: 32px;
    height: 32px;
    border-radius: 50%;
}

.comment-content {
    flex: 1;
}

.comment-author {
    font-weight: 500;
    font-size: 14px;
    margin-bottom: 4px;
}

.comment-text {
    font-size: 14px;
    line-height: 1.5;
}

.comment-time {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Suggestions */
.suggestion-item {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
}

.suggestion-item:hover {
    background: var(--bg-color);
    margin: 0 -16px;
    padding: 10px 16px;
}

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

.suggestion-content {
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 6px;
}

.suggestion-meta {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    gap: 12px;
}

@media (max-width: 768px) {
    .avatar-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .avatar-item {
        width: 50px;
        height: 50px;
    }
}

/* Login styles */
.login-container {
    min-height: calc(100vh - 60px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow);
    text-align: center;
}

.login-title {
    color: var(--primary-color);
    margin-bottom: 8px;
}

.login-subtitle {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.login-users {
    text-align: left;
}

.login-users p {
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.user-select-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.user-select-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.user-select-item:hover {
    border-color: var(--primary-color);
    background: #f0f7ff;
}

.user-info-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
}

/* Publish styles */
.publish-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.publish-header h2 {
    margin: 0;
}

.back-btn {
    color: var(--primary-color);
    text-decoration: none;
}

.publish-form {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow);
}

.publish-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    resize: vertical;
    min-height: 120px;
}

.publish-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.publish-options {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-top: 16px;
}

.publish-options select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.publish-actions {
    margin-top: 20px;
    text-align: right;
}

.btn-primary {
    background: var(--primary-color);
    color: #fff;
    border: none;
    padding: 10px 24px;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Admin styles */
.admin-section {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.admin-section h3 {
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.admin-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.form-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.form-row label {
    width: 120px;
    color: var(--text-secondary);
}

.form-row input {
    width: 120px;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.admin-post-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 8px;
}

.admin-post-content {
    flex: 1;
    overflow: hidden;
}

.btn-danger {
    background: var(--danger-color);
    color: #fff;
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
}

.btn-danger:hover {
    opacity: 0.9;
}

/* Publish Page - PC Layout */
.publish-page-container {
    display: flex;
    max-width: 1000px;
    margin: 80px auto 20px;
    padding: 0 20px;
    gap: 24px;
    min-height: calc(100vh - 100px);
}

.publish-page-main {
    flex: 1;
    max-width: 640px;
}

.publish-page-sidebar {
    width: 280px;
    flex-shrink: 0;
}

.publish-page-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.publish-page-header h2 {
    margin: 0;
    font-size: 20px;
}

.publish-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--shadow);
}

.publish-user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.publish-user-info .avatar {
    width: 48px;
    height: 48px;
}

.publish-user-name {
    font-weight: 600;
    font-size: 16px;
}

.publish-user-dept {
    color: var(--text-secondary);
    font-size: 13px;
}

.publish-card textarea {
    width: 100%;
    padding: 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    line-height: 1.6;
    resize: vertical;
    min-height: 150px;
    font-family: inherit;
}

.publish-card textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.1);
}

.publish-card textarea::placeholder {
    color: #bbb;
}

.publish-tools {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 20px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.publish-tool-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.publish-label {
    color: var(--text-secondary);
    font-size: 14px;
}

.publish-tools select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    background: var(--card-bg);
    cursor: pointer;
}

.publish-tools select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.publish-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.publish-char-count {
    color: var(--text-secondary);
    font-size: 14px;
}

.btn-lg {
    padding: 12px 32px;
    font-size: 16px;
    font-weight: 500;
}

.publish-tips-card,
.publish-rules-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
}

.publish-tips-card h4,
.publish-rules-card h4 {
    margin: 0 0 12px;
    font-size: 15px;
}

.publish-tips-card ul,
.publish-rules-card ul {
    margin: 0;
    padding-left: 20px;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.8;
}

@media (max-width: 768px) {
    .publish-page-container {
        flex-direction: column;
        margin-top: 60px;
    }
    
    .publish-page-sidebar {
        display: none;
    }
    
    .publish-page-main {
        max-width: 100%;
    }
    
    .publish-tools {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}

/* Admin Layout */
.admin-layout {
    display: flex;
    min-height: calc(100vh - 60px);
    margin-top: 60px;
}

.admin-sidebar {
    width: 220px;
    background: var(--card-bg);
    border-right: 1px solid var(--border-color);
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.admin-sidebar h2 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.admin-nav {
    flex: 1;
}

.admin-nav-item {
    display: block;
    padding: 12px 16px;
    color: var(--text-color);
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 4px;
}

.admin-nav-item:hover {
    background: var(--bg-color);
}

.admin-nav-item.active {
    background: var(--primary-color);
    color: #fff;
}

.admin-back {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    margin-top: 20px;
}

.admin-content {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
}

.admin-tab {
    display: none;
}

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

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.admin-header h3 {
    margin: 0;
}

.admin-header input {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    width: 200px;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.admin-table th,
.admin-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th {
    background: var(--bg-color);
    font-weight: 600;
    color: var(--text-secondary);
}

.admin-table tr:hover td {
    background: #fafafa;
}

.post-content-cell {
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.btn-sm {
    padding: 4px 10px;
    font-size: 13px;
    margin-right: 4px;
}

.btn-secondary {
    background: var(--bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
}

.btn-secondary:hover {
    background: #e8e8e8;
}

.admin-form-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 24px;
    max-width: 500px;
    box-shadow: var(--shadow);
}

.form-hint {
    color: var(--text-secondary);
    font-size: 12px;
    margin-left: 12px;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 24px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.modal-content h3 {
    margin-bottom: 20px;
}

.modal-content .form-row {
    margin-bottom: 16px;
}

.modal-content textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    resize: vertical;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 20px;
}

@media (max-width: 768px) {
    .admin-layout {
        flex-direction: column;
    }
    
    .admin-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .admin-nav {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .admin-nav-item {
        flex: 1;
        text-align: center;
        padding: 10px;
    }
    
    .admin-table {
        font-size: 13px;
    }
    
    .admin-table th,
    .admin-table td {
        padding: 8px;
    }
}