/* Community Hub Frontend Styles */
:root {
    --forum-primary: #6366f1;
    --forum-primary-hover: #4f46e5;
    --forum-bg: #f9fafb;
    --forum-card-bg: #ffffff;
    --forum-text: #111827;
    --forum-muted: #6b7280;
    --forum-border: #e5e7eb;
}

/* ========================
   Layout
   ======================== */
.forum-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 24px 16px;
}
.forum-header {
    text-align: center;
    margin-bottom: 32px;
}
.forum-header h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--forum-text);
    margin: 0 0 8px;
}
.forum-subtitle {
    color: var(--forum-muted);
    font-size: 15px;
    margin: 0;
}

/* ========================
   Breadcrumb
   ======================== */
.forum-breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
    font-size: 14px;
    color: var(--forum-muted);
}
.forum-breadcrumb li {
    display: flex;
    align-items: center;
    gap: 4px;
}
.forum-breadcrumb li + li::before {
    content: '/';
    color: var(--forum-border);
    margin-right: 2px;
}
.forum-breadcrumb a {
    color: var(--forum-primary);
    text-decoration: none;
}
.forum-breadcrumb a:hover {
    text-decoration: underline;
}

/* ========================
   Category Grid
   ======================== */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}
.category-card {
    background: var(--forum-card-bg);
    border-radius: 10px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    padding: 20px;
    display: flex;
    flex-direction: row;
    gap: 14px;
    align-items: flex-start;
    text-decoration: none;
    color: inherit;
    transition: box-shadow 0.15s, transform 0.15s;
}
.category-card:hover {
    box-shadow: 0 4px 14px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}
.category-icon {
    font-size: 32px;
    line-height: 1;
    flex-shrink: 0;
}
.category-info {
    flex: 1;
    min-width: 0;
}
.category-name {
    font-weight: 600;
    font-size: 16px;
    color: var(--forum-text);
    margin: 0 0 4px;
}
.category-desc {
    color: var(--forum-muted);
    font-size: 13px;
    line-height: 1.4;
    margin: 0 0 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.category-stats {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--forum-muted);
}
.category-last-activity {
    font-size: 12px;
    color: var(--forum-muted);
    margin-top: 4px;
}

/* Subcategories */
.category-parent {
    flex-direction: column;
    cursor: default;
}
.category-parent:hover {
    transform: none;
}
.category-parent-header {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}
.subcategory-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-top: 12px;
    border-top: 1px solid var(--forum-border);
}
.subcategory-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 4px;
    text-decoration: none;
    color: inherit;
    border-bottom: 1px solid var(--forum-border);
    transition: background 0.15s;
}
.subcategory-item:last-child {
    border-bottom: none;
}
.subcategory-item:hover {
    background: var(--forum-bg);
}
.subcategory-icon {
    font-size: 18px;
    flex-shrink: 0;
    width: 28px;
    text-align: center;
}
.subcategory-info {
    flex: 1;
    min-width: 0;
}
.subcategory-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--forum-text);
    display: block;
}
.subcategory-desc {
    font-size: 12px;
    color: var(--forum-muted);
    display: block;
    margin-top: 2px;
}
.subcategory-stats {
    font-size: 12px;
    color: var(--forum-muted);
    flex-shrink: 0;
}

/* ========================
   Topic List
   ======================== */
.topic-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.topic-row {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--forum-card-bg);
    border-radius: 8px;
    padding: 14px 18px;
    margin-bottom: 8px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.06);
    transition: box-shadow 0.15s;
}
.topic-row:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.topic-pinned {
    border-left: 3px solid #f59e0b;
}
.topic-locked {
    opacity: 0.65;
}
.topic-title {
    font-weight: 600;
    font-size: 15px;
    margin: 0 0 2px;
}
.topic-title a {
    color: inherit;
    text-decoration: none;
}
.topic-title a:hover {
    color: var(--forum-primary);
}
.topic-meta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    font-size: 12px;
    color: var(--forum-muted);
}

/* ========================
   Post Cards
   ======================== */
.post-card {
    background: var(--forum-card-bg);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    display: flex;
    flex-direction: row;
    gap: 14px;
}
.post-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--forum-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
    text-transform: uppercase;
    overflow: hidden;
}
.post-avatar .avatar-image,
.profile-avatar .avatar-image {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}
.post-content {
    flex: 1;
    min-width: 0;
}
.post-author {
    font-weight: 600;
    font-size: 14px;
}
.post-author a {
    color: var(--forum-text);
    text-decoration: none;
}
.post-author a:hover {
    color: var(--forum-primary);
}
.post-date {
    font-size: 12px;
    color: var(--forum-muted);
    margin-left: 8px;
}
.post-body {
    margin-top: 10px;
    line-height: 1.6;
    color: var(--forum-text);
    word-wrap: break-word;
    overflow-wrap: break-word;
}
.post-body code {
    background: #f3f4f6;
    padding: 2px 4px;
    border-radius: 4px;
    font-size: 90%;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}
.post-body pre {
    margin: 12px 0;
}
.post-body pre code {
    display: block;
    padding: 12px;
    overflow-x: auto;
    border-radius: 6px;
    font-size: 13px;
    line-height: 1.5;
}
.post-body blockquote {
    border-left: 3px solid var(--forum-border);
    padding-left: 14px;
    margin: 12px 0;
    color: var(--forum-muted);
    font-style: italic;
}
.post-body p {
    margin: 0 0 10px;
}
.post-body p:last-child {
    margin-bottom: 0;
}
.post-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 12px;
    font-size: 13px;
    color: var(--forum-muted);
}

/* ========================
   Buttons
   ======================== */
.forum-btn {
    display: inline-block;
    padding: 8px 18px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.15s;
    font-family: inherit;
    line-height: 1.4;
}
.forum-btn-primary {
    background: var(--forum-primary);
    color: #fff;
}
.forum-btn-primary:hover {
    background: var(--forum-primary-hover);
}
.forum-btn-outline {
    background: transparent;
    border: 1px solid var(--forum-border);
    color: var(--forum-text);
}
.forum-btn-outline:hover {
    background: #f3f4f6;
}
.forum-btn-sm {
    padding: 4px 12px;
    font-size: 12px;
}
.forum-btn-danger {
    background: #ef4444;
    color: #fff;
}
.forum-btn-danger:hover {
    background: #dc2626;
}

/* ========================
   Textarea & Toolbar
   ======================== */
.forum-textarea {
    width: 100%;
    min-height: 120px;
    resize: vertical;
    border: 1px solid var(--forum-border);
    border-radius: 6px;
    padding: 10px 12px;
    font-size: 14px;
    font-family: inherit;
    color: var(--forum-text);
    box-sizing: border-box;
    line-height: 1.5;
}
.forum-textarea:focus {
    outline: none;
    border-color: var(--forum-primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}
.markdown-toolbar {
    display: flex;
    gap: 4px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}
.markdown-toolbar button {
    padding: 4px 10px;
    font-size: 12px;
    background: #f3f4f6;
    border: 1px solid var(--forum-border);
    border-radius: 4px;
    cursor: pointer;
    color: var(--forum-text);
    font-family: inherit;
    transition: background 0.1s;
}
.markdown-toolbar button:hover {
    background: #e5e7eb;
}

/* ========================
   Form Groups
   ======================== */
.forum-form-group {
    margin-bottom: 16px;
}
.forum-form-group label {
    display: block;
    font-weight: 500;
    font-size: 14px;
    color: var(--forum-text);
    margin-bottom: 4px;
}
.forum-form-group input,
.forum-form-group select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--forum-border);
    border-radius: 6px;
    font-size: 14px;
    color: var(--forum-text);
    box-sizing: border-box;
    font-family: inherit;
}
.forum-form-group input:focus,
.forum-form-group select:focus {
    outline: none;
    border-color: var(--forum-primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}

/* ========================
   Pagination
   ======================== */
.forum-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4px;
    margin-top: 24px;
}
.forum-pagination a,
.forum-pagination span {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 14px;
    text-decoration: none;
    color: var(--forum-text);
    border: 1px solid var(--forum-border);
    transition: all 0.15s;
}
.forum-pagination a:hover {
    background: #f3f4f6;
}
.forum-pagination .active {
    background: var(--forum-primary);
    color: #fff;
    border-color: var(--forum-primary);
}
.forum-pagination .disabled {
    opacity: 0.4;
    pointer-events: none;
}

/* ========================
   Empty State
   ======================== */
.forum-empty {
    text-align: center;
    padding: 48px 16px;
    color: var(--forum-muted);
    font-size: 15px;
}

/* ========================
   Badges
   ======================== */
.forum-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 9999px;
    font-size: 11px;
    font-weight: 600;
    vertical-align: middle;
}
.forum-badge-pinned {
    background: #fef3c7;
    color: #92400e;
}
.forum-badge-locked {
    background: #fee2e2;
    color: #991b1b;
}
.forum-badge-closed {
    background: #f3f4f6;
    color: #6b7280;
}
.forum-badge-admin-only {
    background: #ede9fe;
    color: #5b21b6;
}

/* Topic-level badges (single topic view) */
.topic-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 9999px;
    font-size: 11px;
    font-weight: 600;
    vertical-align: middle;
    margin-left: 6px;
}
.badge-pinned {
    background: #fef3c7;
    color: #92400e;
}
.badge-locked {
    background: #fee2e2;
    color: #991b1b;
}
.badge-closed {
    background: #f3f4f6;
    color: #6b7280;
}
.badge-admin-only {
    background: #ede9fe;
    color: #5b21b6;
}

/* ========================
   Report Modal
   ======================== */
.report-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}
.report-modal.active {
    display: flex;
}
.report-modal-content {
    background: var(--forum-card-bg);
    border-radius: 12px;
    padding: 24px;
    max-width: 480px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}
.report-modal-content h3 {
    margin: 0 0 16px;
    font-size: 18px;
    color: var(--forum-text);
}

/* ========================
   Responsive
   ======================== */
@media (max-width: 768px) {
    .forum-container {
        padding: 16px 12px;
    }
    .forum-header h1 {
        font-size: 22px;
    }
    .category-grid {
        grid-template-columns: 1fr;
    }
    .category-card {
        padding: 16px;
    }
    .topic-row {
        flex-direction: column;
        align-items: flex-start;
        padding: 12px 14px;
    }
    .post-card {
        flex-direction: column;
        padding: 16px;
    }
    .post-avatar {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }
    .post-body {
        font-size: 14px;
    }
    .forum-btn {
        font-size: 13px;
        padding: 6px 14px;
    }
    .forum-breadcrumb {
        font-size: 13px;
    }
    .topic-title {
        font-size: 14px;
    }
    .topic-meta {
        font-size: 11px;
    }
    .forum-pagination a,
    .forum-pagination span {
        padding: 5px 10px;
        font-size: 13px;
    }
}