/* =====================================================
   DEALMATE FORUM STYLES
   ===================================================== */

/* CSS Variables for consistent theming */
:root {
    --forum-primary: #4A90E2;
    --forum-primary-dark: #3182ce;
    --forum-secondary: #667eea;
    --forum-success: #10B981;
    --forum-warning: #F59E0B;
    --forum-danger: #EF4444;
    --forum-info: #3B82F6;
    
    --forum-gray-50: #f8f9fa;
    --forum-gray-100: #e9ecef;
    --forum-gray-200: #dee2e6;
    --forum-gray-300: #ced4da;
    --forum-gray-400: #adb5bd;
    --forum-gray-500: #6c757d;
    --forum-gray-600: #495057;
    --forum-gray-700: #343a40;
    --forum-gray-800: #212529;
    --forum-gray-900: #1a1a1a;
    
    --forum-border-radius: 8px;
    --forum-border-radius-lg: 12px;
    --forum-shadow: 0 2px 4px rgba(0,0,0,0.1);
    --forum-shadow-lg: 0 4px 12px rgba(0,0,0,0.15);
    --forum-transition: all 0.2s ease;
    
    --forum-header-height: 70px;
    --forum-sidebar-width: 280px;
}

/* =====================================================
   GLOBAL FORUM STYLES
   ===================================================== */

.forum-header,
.forum-main,
.forum-sidebar,
.forum-content {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* =====================================================
   HEADER
   ===================================================== */

.forum-header {
    background: white;
    border-bottom: 1px solid var(--forum-gray-200);
    height: var(--forum-header-height);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--forum-shadow);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--forum-gray-900);
    font-weight: 700;
}

.logo-img {
    width: 32px;
    height: 32px;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.forum-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--forum-gray-600);
    padding-left: 20px;
    border-left: 2px solid var(--forum-gray-200);
}

.header-center {
    flex: 1;
    max-width: 500px;
    margin: 0 40px;
}

.search-container {
    position: relative;
    width: 100%;
}

.search-input {
    width: 100%;
    padding: 12px 50px 12px 16px;
    border: 1px solid var(--forum-gray-300);
    border-radius: var(--forum-border-radius);
    font-size: 14px;
    background: var(--forum-gray-50);
    transition: var(--forum-transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--forum-primary);
    background: white;
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.search-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--forum-gray-500);
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: var(--forum-transition);
}

.search-btn:hover {
    color: var(--forum-primary);
    background: var(--forum-gray-100);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.new-topic-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: linear-gradient(135deg, var(--forum-primary) 0%, var(--forum-primary-dark) 100%);
    color: white;
    border: none;
    border-radius: var(--forum-border-radius);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: var(--forum-transition);
    box-shadow: var(--forum-shadow);
}

.new-topic-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--forum-shadow-lg);
}

.user-menu {
    position: relative;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--forum-primary);
    color: white;
    border: none;
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: var(--forum-transition);
}

.user-avatar:hover {
    transform: scale(1.05);
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: white;
    border: 1px solid var(--forum-gray-200);
    border-radius: var(--forum-border-radius);
    box-shadow: var(--forum-shadow-lg);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--forum-transition);
}

.user-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-info {
    padding: 16px;
    border-bottom: 1px solid var(--forum-gray-200);
}

.user-name {
    font-weight: 600;
    color: var(--forum-gray-900);
    margin-bottom: 4px;
}

.user-role {
    font-size: 12px;
    color: var(--forum-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.user-dropdown a {
    display: block;
    padding: 12px 16px;
    color: var(--forum-gray-700);
    text-decoration: none;
    font-size: 14px;
    transition: var(--forum-transition);
}

.user-dropdown a:hover {
    background: var(--forum-gray-50);
    color: var(--forum-primary);
}

.user-dropdown hr {
    margin: 0;
    border: none;
    border-top: 1px solid var(--forum-gray-200);
}

/* =====================================================
   MAIN LAYOUT
   ===================================================== */

.forum-main {
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
    min-height: calc(100vh - var(--forum-header-height));
}

.forum-sidebar {
    width: var(--forum-sidebar-width);
    background: var(--forum-gray-50);
    border-right: 1px solid var(--forum-gray-200);
    padding: 20px;
    overflow-y: auto;
    height: calc(100vh - var(--forum-header-height));
    position: sticky;
    top: var(--forum-header-height);
}

.forum-content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

/* =====================================================
   SIDEBAR
   ===================================================== */

.sidebar-section {
    margin-bottom: 32px;
}

.sidebar-section h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--forum-gray-900);
    margin: 0 0 16px 0;
}

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

.category-item {
    display: flex;
    align-items: center;
    padding: 12px;
    border-radius: var(--forum-border-radius);
    cursor: pointer;
    transition: var(--forum-transition);
    text-decoration: none;
    color: var(--forum-gray-700);
}

.category-item:hover {
    background: white;
    color: var(--forum-gray-900);
    box-shadow: var(--forum-shadow);
}

.category-item.active {
    background: var(--forum-primary);
    color: white;
}

.category-icon {
    font-size: 18px;
    margin-right: 12px;
    width: 20px;
    text-align: center;
}

.category-info {
    flex: 1;
}

.category-name {
    font-weight: 500;
    margin-bottom: 2px;
}

.category-stats {
    font-size: 12px;
    opacity: 0.8;
}

.filter-group {
    margin-bottom: 16px;
}

.filter-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--forum-gray-700);
    margin-bottom: 6px;
}

.filter-group select,
.filter-group input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--forum-gray-300);
    border-radius: var(--forum-border-radius);
    font-size: 14px;
    background: white;
    transition: var(--forum-transition);
}

.filter-group select:focus,
.filter-group input:focus {
    outline: none;
    border-color: var(--forum-primary);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.clear-filters-btn {
    width: 100%;
    padding: 8px 12px;
    background: none;
    border: 1px solid var(--forum-gray-300);
    border-radius: var(--forum-border-radius);
    color: var(--forum-gray-600);
    font-size: 14px;
    cursor: pointer;
    transition: var(--forum-transition);
}

.clear-filters-btn:hover {
    background: var(--forum-gray-100);
    border-color: var(--forum-gray-400);
}

.forum-stats {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stat-number {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--forum-primary);
}

.stat-label {
    font-size: 14px;
    color: var(--forum-gray-600);
}

/* =====================================================
   TOPICS VIEW
   ===================================================== */

.topics-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--forum-gray-200);
}

.topics-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--forum-gray-900);
    margin: 0;
}

.view-controls {
    display: flex;
    gap: 4px;
    background: var(--forum-gray-100);
    padding: 4px;
    border-radius: var(--forum-border-radius);
}

.view-btn {
    padding: 8px;
    background: none;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    color: var(--forum-gray-500);
    transition: var(--forum-transition);
}

.view-btn:hover {
    color: var(--forum-gray-700);
}

.view-btn.active {
    background: white;
    color: var(--forum-primary);
    box-shadow: var(--forum-shadow);
}

.topics-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.topic-item {
    background: white;
    border: 1px solid var(--forum-gray-200);
    border-radius: var(--forum-border-radius-lg);
    padding: 20px;
    cursor: pointer;
    transition: var(--forum-transition);
    position: relative;
}

.topic-item:hover {
    border-color: var(--forum-primary);
    box-shadow: var(--forum-shadow-lg);
    transform: translateY(-1px);
}

.topic-item.pinned {
    border-color: var(--forum-warning);
    background: linear-gradient(135deg, #fef3c7 0%, #fef9e7 100%);
}

.topic-item.locked {
    opacity: 0.7;
}

.topic-header-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 12px;
}

.topic-category-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    color: white;
    margin-bottom: 8px;
}

.topic-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--forum-gray-900);
    margin: 0 0 8px 0;
    line-height: 1.4;
}

.topic-description {
    color: var(--forum-gray-600);
    font-size: 14px;
    margin-bottom: 12px;
    line-height: 1.5;
}

.topic-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: var(--forum-gray-500);
}

.topic-author {
    display: flex;
    align-items: center;
    gap: 6px;
}

.author-badge {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--forum-success);
}

.topic-stats {
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat {
    display: flex;
    align-items: center;
    gap: 4px;
}

.topic-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 12px;
}

.tag {
    padding: 2px 8px;
    background: var(--forum-gray-100);
    color: var(--forum-gray-600);
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.topic-indicators {
    position: absolute;
    top: 16px;
    right: 16px;
    display: flex;
    gap: 8px;
}

.indicator {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

.indicator.pinned {
    background: var(--forum-warning);
    color: white;
}

.indicator.locked {
    background: var(--forum-gray-400);
    color: white;
}

/* =====================================================
   TOPIC DETAIL VIEW
   ===================================================== */

.topic-detail-view {
    max-width: 800px;
    margin: 0 auto;
}

.topic-header {
    margin-bottom: 32px;
}

.back-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: none;
    border: 1px solid var(--forum-gray-300);
    border-radius: var(--forum-border-radius);
    color: var(--forum-gray-600);
    cursor: pointer;
    transition: var(--forum-transition);
    margin-bottom: 20px;
    font-size: 14px;
}

.back-btn:hover {
    background: var(--forum-gray-50);
    border-color: var(--forum-gray-400);
}

.topic-info {
    margin-bottom: 20px;
}

.topic-category {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 13px;
    font-weight: 500;
    color: white;
    margin-bottom: 12px;
}

.topic-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--forum-gray-900);
    margin: 0 0 12px 0;
    line-height: 1.3;
}

.topic-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 14px;
    color: var(--forum-gray-600);
}

.topic-actions {
    display: flex;
    gap: 12px;
}

.subscribe-btn,
.share-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border: 1px solid var(--forum-gray-300);
    border-radius: var(--forum-border-radius);
    background: white;
    color: var(--forum-gray-700);
    cursor: pointer;
    transition: var(--forum-transition);
    font-size: 14px;
    font-weight: 500;
}

.subscribe-btn:hover,
.share-btn:hover {
    border-color: var(--forum-primary);
    color: var(--forum-primary);
}

.subscribe-btn.subscribed {
    background: var(--forum-primary);
    color: white;
    border-color: var(--forum-primary);
}

/* =====================================================
   POSTS
   ===================================================== */

.posts-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.post-item {
    background: white;
    border: 1px solid var(--forum-gray-200);
    border-radius: var(--forum-border-radius-lg);
    padding: 24px;
    position: relative;
}

.post-item.original-post {
    border-color: var(--forum-primary);
    border-width: 2px;
}

.post-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.post-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--forum-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 16px;
}

.author-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.author-name {
    font-weight: 600;
    color: var(--forum-gray-900);
    display: flex;
    align-items: center;
    gap: 6px;
}

.verified-badge {
    width: 16px;
    height: 16px;
    background: var(--forum-success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 10px;
}

.post-time {
    font-size: 13px;
    color: var(--forum-gray-500);
}

.post-actions {
    display: flex;
    gap: 8px;
}

.post-action-btn {
    padding: 6px;
    background: none;
    border: none;
    color: var(--forum-gray-400);
    cursor: pointer;
    border-radius: 4px;
    transition: var(--forum-transition);
}

.post-action-btn:hover {
    background: var(--forum-gray-100);
    color: var(--forum-gray-600);
}

.post-content {
    line-height: 1.6;
    color: var(--forum-gray-800);
    margin-bottom: 16px;
}

.post-content p {
    margin: 0 0 12px 0;
}

.post-content p:last-child {
    margin-bottom: 0;
}

.post-attachments {
    margin-bottom: 16px;
}

.attachment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
}

.attachment-item {
    border: 1px solid var(--forum-gray-200);
    border-radius: var(--forum-border-radius);
    overflow: hidden;
    cursor: pointer;
    transition: var(--forum-transition);
}

.attachment-item:hover {
    border-color: var(--forum-primary);
}

.attachment-preview {
    width: 100%;
    height: 120px;
    object-fit: cover;
    background: var(--forum-gray-100);
}

.attachment-info {
    padding: 8px;
    font-size: 12px;
    color: var(--forum-gray-600);
}

.post-reactions {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--forum-gray-200);
}

.reaction-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border: 1px solid var(--forum-gray-200);
    border-radius: 20px;
    background: white;
    color: var(--forum-gray-600);
    cursor: pointer;
    transition: var(--forum-transition);
    font-size: 13px;
}

.reaction-btn:hover {
    border-color: var(--forum-primary);
    color: var(--forum-primary);
}

.reaction-btn.active {
    background: var(--forum-primary);
    color: white;
    border-color: var(--forum-primary);
}

.reaction-emoji {
    font-size: 16px;
}

/* =====================================================
   REPLY FORM
   ===================================================== */

.reply-form-container {
    margin-top: 32px;
    border-top: 2px solid var(--forum-gray-200);
    padding-top: 24px;
}

.reply-form {
    background: white;
    border: 1px solid var(--forum-gray-200);
    border-radius: var(--forum-border-radius-lg);
    overflow: hidden;
}

.form-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: var(--forum-gray-50);
    border-bottom: 1px solid var(--forum-gray-200);
}

.form-header h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--forum-gray-900);
}

.toggle-reply-form {
    background: none;
    border: none;
    color: var(--forum-gray-500);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: var(--forum-transition);
}

.toggle-reply-form:hover {
    background: var(--forum-gray-200);
    color: var(--forum-gray-700);
}

.form-content {
    padding: 20px;
}

.form-content textarea {
    width: 100%;
    min-height: 120px;
    padding: 12px;
    border: 1px solid var(--forum-gray-300);
    border-radius: var(--forum-border-radius);
    font-family: inherit;
    font-size: 14px;
    line-height: 1.5;
    resize: vertical;
    transition: var(--forum-transition);
}

.form-content textarea:focus {
    outline: none;
    border-color: var(--forum-primary);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.form-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
}

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

.attach-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: none;
    border: 1px solid var(--forum-gray-300);
    border-radius: var(--forum-border-radius);
    color: var(--forum-gray-600);
    cursor: pointer;
    transition: var(--forum-transition);
    font-size: 14px;
}

.attach-btn:hover {
    background: var(--forum-gray-50);
    border-color: var(--forum-gray-400);
}

.attachment-preview {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.attachment-preview-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    background: var(--forum-gray-100);
    border-radius: var(--forum-border-radius);
    font-size: 12px;
    color: var(--forum-gray-700);
}

.remove-attachment {
    background: none;
    border: none;
    color: var(--forum-danger);
    cursor: pointer;
    font-size: 14px;
    padding: 0;
    margin-left: 4px;
}

.form-right {
    display: flex;
    gap: 12px;
}

.cancel-btn,
.submit-btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--forum-border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--forum-transition);
    font-size: 14px;
}

.cancel-btn {
    background: none;
    color: var(--forum-gray-600);
    border: 1px solid var(--forum-gray-300);
}

.cancel-btn:hover {
    background: var(--forum-gray-50);
}

.submit-btn {
    background: linear-gradient(135deg, var(--forum-primary) 0%, var(--forum-primary-dark) 100%);
    color: white;
    box-shadow: var(--forum-shadow);
}

.submit-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--forum-shadow-lg);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* =====================================================
   MODALS
   ===================================================== */

.modal-overlay {
    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;
    opacity: 0;
    visibility: hidden;
    transition: var(--forum-transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: var(--forum-border-radius-lg);
    box-shadow: var(--forum-shadow-lg);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: var(--forum-transition);
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--forum-gray-200);
}

.modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--forum-gray-900);
}

.close-btn {
    background: none;
    border: none;
    color: var(--forum-gray-400);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: var(--forum-transition);
}

.close-btn:hover {
    background: var(--forum-gray-100);
    color: var(--forum-gray-600);
}

.modal-form {
    padding: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--forum-gray-900);
    margin-bottom: 6px;
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--forum-gray-300);
    border-radius: var(--forum-border-radius);
    font-size: 14px;
    transition: var(--forum-transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--forum-primary);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--forum-border-radius);
    transition: var(--forum-transition);
}

.radio-option:hover {
    background: var(--forum-gray-50);
}

.radio-option input[type="radio"] {
    width: auto;
    margin: 0;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--forum-gray-200);
}

/* =====================================================
   PAGINATION
   ===================================================== */

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin: 32px 0;
}

.pagination-btn {
    padding: 8px 12px;
    border: 1px solid var(--forum-gray-300);
    background: white;
    color: var(--forum-gray-700);
    border-radius: var(--forum-border-radius);
    cursor: pointer;
    transition: var(--forum-transition);
    font-size: 14px;
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--forum-primary);
    color: var(--forum-primary);
}

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

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

.pagination-info {
    font-size: 14px;
    color: var(--forum-gray-600);
    margin: 0 16px;
}

/* =====================================================
   LOADING STATES
   ===================================================== */

.loading-spinner {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--forum-gray-500);
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--forum-gray-200);
    border-top: 3px solid var(--forum-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-text {
    margin-top: 16px;
    color: var(--forum-gray-600);
    font-weight: 500;
}

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

/* =====================================================
   TOAST NOTIFICATIONS
   ===================================================== */

.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1500;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    padding: 12px 16px;
    border-radius: var(--forum-border-radius);
    color: white;
    font-weight: 500;
    box-shadow: var(--forum-shadow-lg);
    transform: translateX(100%);
    opacity: 0;
    transition: var(--forum-transition);
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast.success {
    background: var(--forum-success);
}

.toast.error {
    background: var(--forum-danger);
}

.toast.info {
    background: var(--forum-info);
}

.toast.warning {
    background: var(--forum-warning);
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */

@media (max-width: 1024px) {
    .forum-sidebar {
        width: 240px;
    }
    
    .header-center {
        margin: 0 20px;
    }
}

@media (max-width: 768px) {
    .forum-main {
        flex-direction: column;
    }
    
    .forum-sidebar {
        width: 100%;
        height: auto;
        position: static;
        border-right: none;
        border-bottom: 1px solid var(--forum-gray-200);
        padding: 16px;
    }
    
    .forum-sidebar.mobile-sidebar {
        position: fixed;
        top: var(--forum-header-height);
        left: 0;
        width: 280px;
        height: calc(100vh - var(--forum-header-height));
        background: white;
        z-index: 999;
        box-shadow: var(--forum-shadow-lg);
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        overflow-y: auto;
        border-bottom: none;
        border-right: 1px solid var(--forum-gray-200);
    }
    
    .forum-sidebar.mobile-sidebar:not(.mobile-hidden) {
        transform: translateX(0);
    }
    
    .mobile-menu-btn {
        display: block !important;
        background: none;
        border: none;
        color: var(--forum-gray-600);
        cursor: pointer;
        padding: 8px;
        border-radius: 4px;
        transition: var(--forum-transition);
        margin-right: 12px;
    }
    
    .mobile-menu-btn:hover {
        background: var(--forum-gray-100);
        color: var(--forum-gray-800);
    }
    
    .mobile-menu-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 998;
    }
    
    .forum-sidebar.mobile-sidebar.mobile-hidden {
        transform: translateX(-100%);
    }
    
    .header-container {
        padding: 0 16px;
    }
    
    .header-center {
        display: none;
    }
    
    .forum-title {
        display: none;
    }
    
    .topics-header {
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
    }
    
    .view-controls {
        justify-content: center;
    }
    
    .topic-item {
        padding: 16px;
    }
    
    .topic-header-row {
        flex-direction: column;
        gap: 12px;
    }
    
    .topic-meta {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .topic-stats {
        gap: 12px;
    }
    
    .topic-detail-view {
        max-width: none;
    }
    
    .topic-title {
        font-size: 1.5rem;
    }
    
    .post-item {
        padding: 16px;
    }
    
    .post-header {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    
    .post-actions {
        justify-content: flex-end;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        margin: 20px;
    }
    
    .modal-form {
        padding: 20px;
    }
    
    .form-actions {
        flex-direction: column;
        gap: 12px;
    }
    
    .form-actions .cancel-btn,
    .form-actions .submit-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: 0 12px;
    }
    
    .new-topic-btn span {
        display: none;
    }
    
    .user-dropdown {
        right: -50px;
    }
    
    .forum-content {
        padding: 12px;
    }
    
    .topic-item {
        padding: 12px;
    }
    
    .post-item {
        padding: 12px;
    }
    
    .author-avatar {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }
    
    .attachment-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
    
    .pagination {
        flex-wrap: wrap;
        gap: 4px;
    }
    
    .pagination-btn {
        padding: 6px 10px;
        font-size: 12px;
    }
}

/* =====================================================
   ACCESSIBILITY
   ===================================================== */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
.forum-header a:focus,
.forum-header button:focus,
.category-item:focus,
.topic-item:focus,
.post-action-btn:focus,
.reaction-btn:focus {
    outline: 2px solid var(--forum-primary);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --forum-gray-200: #000;
        --forum-gray-300: #333;
        --forum-gray-400: #666;
    }
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
    /* Dark mode styles can be added here if needed */
}