:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --accent-primary: #3b82f6;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    --border-color: #334155;
    --radius: 12px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

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

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;
}

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

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: #2563eb;
}

.dashboard {
    padding: 2rem;
    max-width: 1600px;
    margin: 0 auto;
}

.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.overview-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    padding: 1.5rem;
    text-align: center;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    line-height: 1.2;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.5rem;
}

.chart-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.chart-card {
    padding: 1.5rem;
}

.chart-card h3 {
    margin-bottom: 1rem;
    font-size: 1.125rem;
    color: var(--text-primary);
}

.chart-card canvas {
    max-height: 300px;
}

.tables-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.table-card {
    padding: 1.5rem;
}

.table-card h3 {
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.data-table td {
    font-size: 0.875rem;
}

.data-table tr:last-child td {
    border-bottom: none;
}

.quality-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.75rem;
}

.quality-badge.high {
    background: var(--accent-success);
    color: white;
}

.tier-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: capitalize;
}

.tier-badge.authoritative {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent-primary);
}

.tier-badge.mainstream {
    background: rgba(16, 185, 129, 0.2);
    color: var(--accent-success);
}

.tier-badge.underground {
    background: rgba(245, 158, 11, 0.2);
    color: var(--accent-warning);
}

.momentum-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.momentum-badge.positive {
    background: rgba(16, 185, 129, 0.2);
    color: var(--accent-success);
}

.momentum-badge.negative {
    background: rgba(239, 68, 68, 0.2);
    color: var(--accent-danger);
}

.no-data {
    color: var(--text-secondary);
    font-style: italic;
    text-align: center;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.metric {
    text-align: center;
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: 8px;
}

.metric-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.metric-value.overrated {
    color: var(--accent-warning);
}

.metric-value.underrated {
    color: var(--accent-success);
}

.metric-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.trend-stats {
    margin-bottom: 2rem;
}

.trend-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
}

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

.trend-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.trend-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

@media (max-width: 768px) {
    .dashboard {
        padding: 1rem;
    }
    
    .chart-grid,
    .tables-grid {
        grid-template-columns: 1fr;
    }
    
    .overview-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-value {
        font-size: 1.75rem;
    }
    
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.hub-main {
    padding-top: 1rem;
}

.hub-header {
    text-align: center;
    margin-bottom: 2.5rem;
    padding: 2rem 0;
}

.hub-header h1 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-success));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hub-subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

.hub-grid {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.hub-section {
    margin-bottom: 1rem;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-title::before {
    content: '';
    width: 4px;
    height: 1.25rem;
    background: var(--accent-primary);
    border-radius: 2px;
}

.digest-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.digest-card {
    padding: 1.5rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.digest-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.digest-card.tech_security {
    border-left: 4px solid #ef4444;
}

.digest-card.business {
    border-left: 4px solid #3b82f6;
}

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

.digest-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.digest-status {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
}

.digest-status.ready {
    background: rgba(16, 185, 129, 0.2);
    color: var(--accent-success);
}

.digest-status.running {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent-primary);
}

.digest-status.error {
    background: rgba(239, 68, 68, 0.2);
    color: var(--accent-danger);
}

.digest-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.digest-meta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.25rem;
    padding: 0.75rem;
    background: var(--bg-primary);
    border-radius: 8px;
}

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

.meta-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.meta-value {
    font-size: 0.875rem;
    font-weight: 500;
}

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

.digest-actions .btn {
    flex: 1;
    text-align: center;
    text-decoration: none;
}

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

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

.dashboard-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.dashboard-link-card {
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
}

.dashboard-link-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    border-color: var(--accent-primary);
}

.dashboard-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.dashboard-link-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.dashboard-link-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

.config-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.config-card {
    padding: 1.5rem;
}

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

.config-header h3 {
    font-size: 1.125rem;
}

.config-file {
    font-size: 0.75rem;
    color: var(--text-secondary);
    background: var(--bg-primary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: monospace;
}

.config-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.quick-stats {
    margin-top: 1rem;
}

.status-indicator {
    color: var(--accent-success);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-indicator::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent-success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    width: 90%;
    max-width: 900px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.25rem;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

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

.modal-body {
    flex: 1;
    padding: 1.5rem;
    overflow: auto;
}

.config-editor-info {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.config-textarea {
    width: 100%;
    height: 400px;
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    font-family: 'Fira Code', 'Monaco', 'Consolas', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    resize: vertical;
}

.config-textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.config-error {
    color: var(--accent-danger);
    font-size: 0.875rem;
    margin-top: 0.75rem;
    min-height: 1.25rem;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--border-color);
}

.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 0.875rem;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s;
    z-index: 2000;
}

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

.toast.success {
    border-color: var(--accent-success);
    background: rgba(16, 185, 129, 0.1);
}

.toast.error {
    border-color: var(--accent-danger);
    background: rgba(239, 68, 68, 0.1);
}

.toast.info {
    border-color: var(--accent-primary);
    background: rgba(59, 130, 246, 0.1);
}

@media (max-width: 768px) {
    .hub-header h1 {
        font-size: 1.75rem;
    }
    
    .digest-cards,
    .dashboard-cards,
    .config-cards {
        grid-template-columns: 1fr;
    }
    
    .digest-meta {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .modal-content {
        width: 95%;
        max-height: 90vh;
    }
    
    .config-textarea {
        height: 300px;
    }
}