/* Variables */
:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-card: #242424;
    --bg-hover: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --border: #333333;
    --border-light: #444444;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --transition: all 0.2s ease;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Navbar */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-brand .subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: block;
}

.nav-links {
    display: flex;
    gap: 0.5rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    font-weight: 500;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.nav-link.active {
    color: var(--accent);
    background: rgba(99, 102, 241, 0.1);
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Pages */
.page {
    display: none;
}

.page.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-header h2 {
    font-size: 1.75rem;
    font-weight: 600;
}

.page-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    width: 100%;
}

.header-actions {
    display: flex;
    gap: 0.75rem;
}

/* Selects */
select {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

select:hover {
    border-color: var(--border-light);
}

select:focus {
    outline: none;
    border-color: var(--accent);
}

/* Buttons */
.btn {
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-hover);
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

.btn-icon {
    padding: 0.5rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.btn-icon:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

/* Articles Grid */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

/* Article Card */
.article-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.article-card:hover {
    border-color: var(--border-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.article-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.article-meta {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.article-source {
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 500;
}

.article-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.article-score {
    background: var(--bg-hover);
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.article-score.high {
    background: rgba(34, 197, 94, 0.2);
    color: var(--success);
}

.article-score.medium {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.article-score.low {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.article-title {
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.4;
}

.article-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.article-title a:hover {
    color: var(--accent);
}

.article-summary {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background: var(--bg-hover);
    color: var(--text-secondary);
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-size: 0.75rem;
}

.article-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.rating-buttons {
    display: flex;
    gap: 0.5rem;
}

.rating-btn {
    padding: 0.4rem 0.8rem;
    background: var(--bg-hover);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

.rating-btn:hover {
    background: var(--bg-card);
}

.rating-btn.active.up {
    background: rgba(34, 197, 94, 0.2);
    border-color: var(--success);
}

.rating-btn.active.down {
    background: rgba(239, 68, 68, 0.2);
    border-color: var(--danger);
}

.rating-btn.active.favorite {
    background: rgba(245, 158, 11, 0.2);
    border-color: var(--warning);
}

/* Themes Grid */
.themes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.theme-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: var(--transition);
    cursor: pointer;
}

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

.theme-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.theme-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.theme-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.theme-stats {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 1.5rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Suggestions */
.suggestions-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.suggestion-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
}

.suggestion-info {
    flex: 1;
}

.suggestion-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.suggestion-url {
    color: var(--accent);
    font-size: 0.85rem;
    word-break: break-all;
}

.suggestion-reason {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.suggestion-meta {
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

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

/* Settings */
.settings-content {
    max-width: 600px;
}

.settings-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.settings-section h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}

.settings-section p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

#stats-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.stat-item {
    background: var(--bg-hover);
    padding: 1rem;
    border-radius: var(--radius-sm);
    text-align: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 200;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    padding: 2rem;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--bg-hover);
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--bg-card);
}

/* Key Points */
.key-points {
    margin: 1rem 0;
}

.key-points h4 {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.key-points ul {
    list-style: none;
}

.key-points li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
}

.key-points li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent);
}

/* Toast */
#toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-sm);
    animation: slideIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.toast.success {
    border-color: var(--success);
}

.toast.error {
    border-color: var(--danger);
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border);
    margin-top: 3rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.empty-state h3 {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

/* Loading */
.loading {
    display: flex;
    justify-content: center;
    padding: 3rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Admin Page */
.admin-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.admin-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
}

.admin-card h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.admin-card h4 {
    font-size: 0.95rem;
    margin: 1rem 0 0.75rem;
    color: var(--text-secondary);
}

.admin-card-wide {
    grid-column: span 2;
}

.admin-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.action-status {
    margin-top: 0.5rem;
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    display: none;
}

.action-status.show {
    display: block;
}

.action-status.loading {
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent);
}

.action-status.success {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success);
}

.action-status.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.stat-box {
    background: var(--bg-hover);
    padding: 1rem;
    border-radius: var(--radius-sm);
    text-align: center;
}

.stat-box .value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-box .label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.inline-form {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.inline-form input,
.inline-form select {
    flex: 1;
    min-width: 150px;
    padding: 0.6rem 1rem;
    background: var(--bg-hover);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.inline-form input:focus,
.inline-form select:focus {
    outline: none;
    border-color: var(--accent);
}

.inline-form input::placeholder {
    color: var(--text-muted);
}

.source-search-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.admin-list {
    margin-top: 1rem;
    max-height: 400px;
    overflow-y: auto;
}

.admin-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    border-bottom: 1px solid var(--border);
    gap: 1rem;
}

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

.admin-list-item .info {
    flex: 1;
    min-width: 0;
}

.admin-list-item .name {
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.admin-list-item .meta {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.admin-list-item .actions {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.btn-icon-sm {
    padding: 0.4rem 0.6rem;
    font-size: 0.85rem;
    background: var(--bg-hover);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.btn-icon-sm:hover {
    color: var(--text-primary);
    border-color: var(--border-light);
}

.btn-icon-sm.danger:hover {
    color: var(--danger);
    border-color: var(--danger);
}

.btn-icon-sm.success:hover {
    color: var(--success);
    border-color: var(--success);
}

.status-badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 500;
}

.status-badge.active {
    background: rgba(34, 197, 94, 0.2);
    color: var(--success);
}

.status-badge.inactive {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .container {
        padding: 1rem;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .articles-grid {
        grid-template-columns: 1fr;
    }

    .suggestion-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .suggestion-actions {
        width: 100%;
        justify-content: flex-end;
    }

    .admin-grid {
        grid-template-columns: 1fr;
    }

    .admin-card-wide {
        grid-column: span 1;
    }

    .inline-form {
        flex-direction: column;
    }

    .inline-form input,
    .inline-form select {
        width: 100%;
    }
}