/* =============================================
   BookConnect - Forum Styles
   ============================================= */

:root {
    --forum-primary: #667eea;
    --forum-secondary: #764ba2;
    --forum-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --forum-bg: #f5f5f5;
    --forum-card-bg: #ffffff;
    --forum-text: #333333;
    --forum-text-muted: #666666;
    --forum-border: #e0e0e0;
    --forum-radius: 10px;
}

body {
    background-color: var(--forum-bg);
}

/* ---- Container ---- */
.forums-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* ---- Header gradient ---- */
.forum-header {
    background: var(--forum-gradient);
    color: white;
    padding: 2rem;
    border-radius: var(--forum-radius);
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.forum-header h1 {
    margin: 0;
    font-size: 2rem;
    font-weight: bold;
}

.forum-header p {
    margin: 0.5rem 0 0 0;
    opacity: 0.9;
}

/* ---- Search bar ---- */
.forum-search {
    position: relative;
    margin-bottom: 1.5rem;
}

.forum-search input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    border: 2px solid var(--forum-border);
    border-radius: 50px;
    font-size: 1rem;
    transition: border-color 0.2s;
    outline: none;
}

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

.forum-search .search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--forum-text-muted);
}

.search-results-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border-radius: var(--forum-radius);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 100;
    max-height: 400px;
    overflow-y: auto;
    display: none;
}

.search-results-dropdown.active {
    display: block;
}

.search-result-item {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--forum-border);
    cursor: pointer;
    transition: background 0.15s;
}

.search-result-item:hover {
    background: #f8f9fa;
}

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

/* ---- Categories grid ---- */
.forum-categories {
    display: grid;
    gap: 1.5rem;
}

.forum-category {
    background: var(--forum-card-bg);
    border-radius: var(--forum-radius);
    padding: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
}

.forum-category:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
    color: inherit;
    text-decoration: none;
}

.category-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.category-icon {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-right: 1rem;
    color: white;
    flex-shrink: 0;
}

.category-info h3 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--forum-text);
}

.category-info p {
    margin: 0.25rem 0 0 0;
    color: var(--forum-text-muted);
    font-size: 0.9rem;
}

.category-stats {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--forum-border);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--forum-text-muted);
    font-size: 0.9rem;
}

.stat-item i {
    color: var(--forum-primary);
}

/* Category color classes */
.cat-general { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }
.cat-writing { background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); }
.cat-publishing { background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%); }
.cat-marketing { background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%); }
.cat-help { background: linear-gradient(135deg, #fa709a 0%, #fee140 100%); }

/* ---- Breadcrumb ---- */
.forum-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    flex-wrap: wrap;
}

.forum-breadcrumb a {
    color: var(--forum-primary);
    text-decoration: none;
}

.forum-breadcrumb a:hover {
    text-decoration: underline;
}

.forum-breadcrumb .separator {
    color: var(--forum-text-muted);
}

.forum-breadcrumb .current {
    color: var(--forum-text-muted);
}

/* ---- Topic list (category page) ---- */
.topic-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.topic-item {
    background: var(--forum-card-bg);
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--forum-border);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: background 0.15s;
}

.topic-item:first-child {
    border-radius: var(--forum-radius) var(--forum-radius) 0 0;
}

.topic-item:last-child {
    border-radius: 0 0 var(--forum-radius) var(--forum-radius);
    border-bottom: none;
}

.topic-item:only-child {
    border-radius: var(--forum-radius);
}

.topic-item:hover {
    background: #fafafe;
}

.topic-item.topic-pinned {
    border-left: 4px solid var(--forum-primary);
    background: #f8f9ff;
}

.topic-item.topic-locked {
    opacity: 0.75;
}

.topic-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.topic-avatar-placeholder {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--forum-gradient);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1rem;
    flex-shrink: 0;
}

.topic-main {
    flex: 1;
    min-width: 0;
}

.topic-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--forum-text);
    text-decoration: none;
    display: block;
    margin-bottom: 0.25rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.topic-title:hover {
    color: var(--forum-primary);
}

.topic-badges {
    display: inline-flex;
    gap: 0.35rem;
    margin-left: 0.5rem;
}

.topic-badge {
    font-size: 0.7rem;
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    font-weight: 600;
}

.badge-pinned {
    background: #e8eaff;
    color: var(--forum-primary);
}

.badge-locked {
    background: #fff3cd;
    color: #856404;
}

.topic-meta {
    font-size: 0.8rem;
    color: var(--forum-text-muted);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.topic-meta a {
    color: var(--forum-primary);
    text-decoration: none;
    font-weight: 500;
}

.topic-stats-col {
    display: flex;
    gap: 1.5rem;
    flex-shrink: 0;
    text-align: center;
}

.topic-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 50px;
}

.topic-stat .stat-number {
    font-weight: 700;
    font-size: 1rem;
    color: var(--forum-text);
}

.topic-stat .stat-label {
    font-size: 0.7rem;
    color: var(--forum-text-muted);
    text-transform: uppercase;
}

.topic-last-post {
    flex-shrink: 0;
    min-width: 140px;
    text-align: right;
    font-size: 0.8rem;
    color: var(--forum-text-muted);
}

.topic-last-post .last-post-user {
    font-weight: 500;
    color: var(--forum-text);
}

/* ---- Category header banner ---- */
.category-banner {
    background: var(--forum-card-bg);
    border-radius: var(--forum-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.category-banner-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.category-banner-text h2 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--forum-text);
}

.category-banner-text p {
    margin: 0.25rem 0 0;
    color: var(--forum-text-muted);
    font-size: 0.9rem;
}

/* ---- Sort tabs ---- */
.forum-sort-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 1rem;
    background: var(--forum-card-bg);
    border-radius: var(--forum-radius);
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.sort-tab {
    padding: 0.6rem 1.25rem;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--forum-text-muted);
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
}

.sort-tab:hover {
    background: #f0f0f0;
}

.sort-tab.active {
    background: var(--forum-primary);
    color: white;
    font-weight: 600;
}

/* ---- Topic detail page ---- */
.topic-detail-header {
    background: var(--forum-card-bg);
    border-radius: var(--forum-radius);
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.topic-detail-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--forum-text);
    margin: 0 0 1rem 0;
}

.topic-detail-content {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--forum-text);
}

.topic-detail-content blockquote {
    border-left: 4px solid var(--forum-primary);
    margin: 1rem 0;
    padding: 0.5rem 1rem;
    background: #f8f9ff;
    border-radius: 0 var(--forum-radius) var(--forum-radius) 0;
}

.topic-detail-content a {
    color: var(--forum-primary);
}

.topic-detail-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--forum-border);
    flex-wrap: wrap;
    gap: 0.5rem;
}

.topic-author-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.topic-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* ---- Post / Reply card ---- */
.posts-section {
    margin-top: 1.5rem;
}

.posts-section-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--forum-text);
    margin-bottom: 1rem;
}

.post-item {
    background: var(--forum-card-bg);
    border-radius: var(--forum-radius);
    padding: 1.25rem 1.5rem;
    margin-bottom: 0.75rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.post-item.post-child {
    margin-left: 2.5rem;
    border-left: 3px solid var(--forum-primary);
}

.post-reply-indicator {
    font-size: 0.8rem;
    color: var(--forum-primary);
    margin-bottom: 0.5rem;
    padding: 0.25rem 0.5rem;
    background: rgba(102, 126, 234, 0.08);
    border-radius: 4px;
    display: inline-block;
}

.post-reply-indicator i {
    margin-right: 0.25rem;
}

.post-item.post-deleted {
    opacity: 0.5;
    font-style: italic;
}

.post-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.post-author {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

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

.post-author-avatar-placeholder {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--forum-gradient);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.85rem;
}

.post-author-name {
    font-weight: 600;
    color: var(--forum-text);
    font-size: 0.9rem;
}

.post-date {
    font-size: 0.8rem;
    color: var(--forum-text-muted);
}

.post-edited-badge {
    font-size: 0.7rem;
    color: var(--forum-text-muted);
    font-style: italic;
    margin-left: 0.5rem;
}

.post-content {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--forum-text);
    margin-bottom: 0.75rem;
}

.post-content blockquote {
    border-left: 4px solid var(--forum-primary);
    margin: 0.75rem 0;
    padding: 0.4rem 0.75rem;
    background: #f8f9ff;
    border-radius: 0 6px 6px 0;
}

.post-footer {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* ---- Action buttons ---- */
.btn-forum {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
    border: 1px solid var(--forum-border);
    background: transparent;
    color: var(--forum-text-muted);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
}

.btn-forum:hover {
    background: #f0f0f0;
    color: var(--forum-text);
}

.btn-forum.btn-like.liked {
    background: #f0e6ff;
    color: var(--forum-primary);
    border-color: var(--forum-primary);
}

.btn-forum.btn-danger:hover {
    background: #fff0f0;
    color: #dc3545;
    border-color: #dc3545;
}

.btn-forum-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    border-radius: 8px;
    border: none;
    background: var(--forum-gradient);
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    text-decoration: none;
}

.btn-forum-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    color: white;
    text-decoration: none;
}

.btn-forum-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    border-radius: 8px;
    border: 2px solid var(--forum-primary);
    background: transparent;
    color: var(--forum-primary);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-forum-outline:hover {
    background: var(--forum-primary);
    color: white;
    text-decoration: none;
}

/* ---- FAB new topic button ---- */
.btn-new-topic {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--forum-gradient);
    color: white;
    border: none;
    border-radius: 50px;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    z-index: 50;
    text-decoration: none;
}

.btn-new-topic:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.5);
    color: white;
    text-decoration: none;
}

/* ---- Reply form ---- */
.reply-form-section {
    background: var(--forum-card-bg);
    border-radius: var(--forum-radius);
    padding: 1.5rem;
    margin-top: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.reply-form-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--forum-text);
}

.reply-parent-info {
    background: #f8f9ff;
    border-left: 3px solid var(--forum-primary);
    padding: 0.5rem 0.75rem;
    margin-bottom: 1rem;
    border-radius: 0 6px 6px 0;
    font-size: 0.85rem;
    color: var(--forum-text-muted);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ---- Rich text editor ---- */
.forum-editor-wrapper {
    border: 2px solid var(--forum-border);
    border-radius: 8px;
    overflow: hidden;
    transition: border-color 0.2s;
    margin-bottom: 1rem;
}

.forum-editor-wrapper:focus-within {
    border-color: var(--forum-primary);
}

.forum-editor-toolbar {
    display: flex;
    gap: 0.25rem;
    padding: 0.5rem;
    background: #f8f9fa;
    border-bottom: 1px solid var(--forum-border);
    flex-wrap: wrap;
}

.editor-btn {
    width: 34px;
    height: 34px;
    border: none;
    background: transparent;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--forum-text-muted);
    font-size: 0.9rem;
    transition: background 0.15s, color 0.15s;
}

.editor-btn:hover {
    background: #e0e0e0;
    color: var(--forum-text);
}

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

.editor-separator {
    width: 1px;
    height: 24px;
    background: var(--forum-border);
    margin: 5px 4px;
}

.forum-editor-content {
    min-height: 150px;
    padding: 1rem;
    font-size: 0.95rem;
    line-height: 1.6;
    outline: none;
    color: var(--forum-text);
}

.forum-editor-content:empty::before {
    content: attr(data-placeholder);
    color: #aaa;
}

/* ---- New topic form ---- */
.new-topic-form {
    background: var(--forum-card-bg);
    border-radius: var(--forum-radius);
    padding: 2rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--forum-text);
    font-size: 0.9rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.6rem 1rem;
    border: 2px solid var(--forum-border);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
    outline: none;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--forum-primary);
}

/* ---- Pagination ---- */
.forum-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.25rem;
    margin-top: 2rem;
}

.forum-pagination a,
.forum-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 8px;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.15s;
}

.forum-pagination a {
    color: var(--forum-text);
    border: 1px solid var(--forum-border);
}

.forum-pagination a:hover {
    background: #f0f0f0;
}

.forum-pagination .active {
    background: var(--forum-primary);
    color: white;
    border: 1px solid var(--forum-primary);
}

.forum-pagination .disabled {
    color: #ccc;
    pointer-events: none;
}

/* ---- Empty state ---- */
.forum-empty {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--forum-text-muted);
}

.forum-empty i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

.forum-empty p {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

/* ---- Report modal ---- */
.report-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
}

.report-modal-overlay.active {
    display: flex;
}

.report-modal {
    background: white;
    border-radius: var(--forum-radius);
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

.report-modal h3 {
    margin: 0 0 1rem 0;
    font-size: 1.2rem;
}

.report-option {
    display: block;
    padding: 0.5rem 0;
}

.report-option input[type="radio"] {
    margin-right: 0.5rem;
}

.report-details {
    width: 100%;
    min-height: 80px;
    padding: 0.5rem;
    border: 2px solid var(--forum-border);
    border-radius: 6px;
    margin-top: 0.75rem;
    font-size: 0.9rem;
    resize: vertical;
}

.report-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    margin-top: 1rem;
}

/* ---- Admin badge ---- */
.admin-actions {
    display: flex;
    gap: 0.5rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--forum-border);
    margin-bottom: 1rem;
}

.admin-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: #dc3545;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-right: 0.5rem;
    align-self: center;
}

/* ---- Topic locked banner ---- */
.topic-locked-banner {
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: var(--forum-radius);
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    color: #856404;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .forums-container {
        padding: 0 0.5rem;
    }

    .forum-header {
        padding: 1.5rem;
    }

    .forum-header h1 {
        font-size: 1.5rem;
    }

    .topic-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .topic-stats-col {
        width: 100%;
        justify-content: flex-start;
    }

    .topic-last-post {
        text-align: left;
        min-width: auto;
    }

    .category-banner {
        flex-direction: column;
        align-items: flex-start;
    }

    .post-item.post-child {
        margin-left: 1rem;
    }

    .btn-new-topic {
        bottom: 1rem;
        right: 1rem;
        padding: 0.8rem 1.25rem;
        font-size: 0.9rem;
    }

    .topic-detail-header {
        padding: 1.25rem;
    }

    .topic-detail-title {
        font-size: 1.35rem;
    }

    .new-topic-form {
        padding: 1.25rem;
    }
}