:root {
    --primary-bg: #0a0a0a;
    --secondary-bg: #1a1a1a;
    --card-bg: #2a2a2a;
    --accent-blue: #3b82f6;
    --accent-blue-hover: #2563eb;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --border-color: #404040;
    --success-color: #10b981;
    --danger-color: #ef4444;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
}

.navbar {
    background-color: var(--secondary-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-blue);
}

.arabic {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-left: 0.5rem;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.search-container {
    position: relative;
}

.search-container input {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem 2.5rem 0.5rem 1rem;
    color: var(--text-primary);
    width: 300px;
    font-size: 0.9rem;
}

.search-container input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

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

.auth-btn, .create-btn {
    background-color: var(--accent-blue);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.2s;
}

.auth-btn:hover, .create-btn:hover {
    background-color: var(--accent-blue-hover);
}

.main-content {
    min-height: calc(100vh - 80px);
    padding: 2rem 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.welcome-section {
    text-align: center;
    margin-bottom: 3rem;
}

.welcome-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--accent-blue), #60a5fa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.welcome-section p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.wiki-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.feature-item i {
    font-size: 1.5rem;
    color: var(--accent-blue);
}

.stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-blue);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.article-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.2s;
}

.article-card:hover {
    border-color: var(--accent-blue);
    transform: translateY(-2px);
}

.article-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.article-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

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

.article-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.back-btn, .edit-btn {
    background-color: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s;
}

.back-btn:hover, .edit-btn:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.article-content {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
}

.article-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.article-content h2 {
    font-size: 1.8rem;
    margin: 2rem 0 1rem 0;
    color: var(--text-primary);
}

.article-content h3 {
    font-size: 1.4rem;
    margin: 1.5rem 0 0.5rem 0;
    color: var(--text-primary);
}

.article-content p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.editor-view {
    max-width: 1400px;
    margin: 0 auto;
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.editor-actions {
    display: flex;
    gap: 1rem;
}

.cancel-btn {
    background-color: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    cursor: pointer;
}

.preview-btn {
    background-color: var(--accent-blue);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-weight: 500;
}

.save-btn {
    background-color: var(--success-color);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-weight: 500;
}

.editor-container {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
}

.editor-sidebar {
    background-color: var(--secondary-bg);
    border-radius: 8px;
    padding: 1.5rem;
}

.editor-sidebar h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.format-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.format-btn {
    background-color: var(--card-bg);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.4rem 0.8rem;
    cursor: pointer;
    font-size: 0.85rem;
    text-align: left;
    font-family: 'Courier New', monospace;
    transition: all 0.2s;
}

.format-btn:hover {
    background-color: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
}

.editor-help {
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

.editor-help h5 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.editor-help ul {
    list-style: none;
    padding: 0;
}

.editor-help li {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.3rem;
}

.editor-help code {
    background-color: var(--card-bg);
    padding: 0.1rem 0.3rem;
    border-radius: 3px;
    font-size: 0.75rem;
}

.editor-main {
    display: flex;
    flex-direction: column;
}

.title-input {
    width: 100%;
    background-color: transparent;
    border: none;
    border-bottom: 2px solid var(--border-color);
    color: var(--text-primary);
    font-size: 2rem;
    font-weight: 600;
    padding: 1rem 0;
    margin-bottom: 1rem;
}

.title-input:focus {
    outline: none;
    border-bottom-color: var(--accent-blue);
}

.editor-tabs {
    display: flex;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    background-color: transparent;
    color: var(--text-secondary);
    border: none;
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.tab-btn.active {
    color: var(--accent-blue);
    border-bottom-color: var(--accent-blue);
}

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

.edit-mode, .preview-mode {
    flex: 1;
}

.content-input {
    width: 100%;
    min-height: 500px;
    background-color: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    resize: vertical;
    font-family: 'Courier New', monospace;
    padding: 1rem;
}

.content-input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.preview-mode {
    background-color: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    min-height: 500px;
    overflow-y: auto;
}

/* Wikipedia-style content formatting */
.wiki-infobox {
    float: right;
    width: 300px;
    margin: 0 0 1rem 1rem;
    background-color: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    font-size: 0.9rem;
}

.wiki-infobox h3 {
    text-align: center;
    background-color: var(--accent-blue);
    color: white;
    margin: -1rem -1rem 1rem -1rem;
    padding: 0.5rem;
    border-radius: 8px 8px 0 0;
    font-size: 1.1rem;
}

.wiki-infobox-row {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    padding: 0.3rem 0;
}

.wiki-infobox-row:last-child {
    border-bottom: none;
}

.wiki-infobox-label {
    font-weight: 600;
    width: 40%;
    color: var(--text-primary);
}

.wiki-infobox-value {
    width: 60%;
    color: var(--text-secondary);
}

.wiki-category {
    display: inline-block;
    background-color: var(--accent-blue);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    margin: 0.2rem 0.2rem 0 0;
    text-decoration: none;
}

.wiki-categories {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.wiki-categories h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.wiki-internal-link {
    color: var(--accent-blue);
    text-decoration: none;
    border-bottom: 1px dotted var(--accent-blue);
}

.wiki-internal-link:hover {
    text-decoration: underline;
}

.wiki-external-link {
    color: var(--accent-blue);
    text-decoration: none;
}

.wiki-external-link:after {
    content: " ↗";
    font-size: 0.8em;
}

.wiki-quote {
    border-left: 4px solid var(--accent-blue);
    padding-left: 1rem;
    margin: 1rem 0;
    font-style: italic;
    color: var(--text-secondary);
}

.wiki-code {
    background-color: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.2rem 0.4rem;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

.wiki-toc {
    background-color: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
    width: fit-content;
}

.wiki-toc h4 {
    margin: 0 0 0.5rem 0;
    color: var(--text-primary);
}

.wiki-toc ul {
    list-style: none;
    padding-left: 0;
}

.wiki-toc li {
    margin: 0.2rem 0;
}

.wiki-toc a {
    color: var(--accent-blue);
    text-decoration: none;
    font-size: 0.9rem;
}

.wiki-toc a:hover {
    text-decoration: underline;
}

@media (max-width: 1024px) {
    .editor-container {
        grid-template-columns: 1fr;
    }
    
    .editor-sidebar {
        order: 2;
    }
    
    .wiki-infobox {
        float: none;
        width: 100%;
        margin: 1rem 0;
    }
}

.modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    max-width: 400px;
    width: 90%;
    text-align: center;
    position: relative;
}

.close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
}

.close:hover {
    color: var(--text-primary);
}

.modal-content h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.modal-content p {
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

.google-signin-btn {
    background-color: #4285f4;
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
}

.google-signin-btn:hover {
    background-color: #3367d6;
}

.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

@media (max-width: 768px) {
    .nav-container {
        padding: 0 1rem;
        flex-direction: column;
        gap: 1rem;
    }
    
    .search-container input {
        width: 250px;
    }
    
    .welcome-section h2 {
        font-size: 2rem;
    }
    
    .stats {
        gap: 2rem;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 0 1rem;
    }
}