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

:root {
    --bg-dark: #0d1117;
    --bg-card: #161b22;
    --bg-card-hover: #1c2128;
    --border: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    
    --critical: #f85149;
    --critical-bg: rgba(248, 81, 73, 0.15);
    --warning: #d29922;
    --warning-bg: rgba(210, 153, 34, 0.15);
    --good: #3fb950;
    --good-bg: rgba(63, 185, 80, 0.15);
    --over: #8b5cf6;
    --over-bg: rgba(139, 92, 246, 0.15);
    --info: #58a6ff;
    --info-bg: rgba(88, 166, 255, 0.15);
    
    --accent: #58a6ff;
    --radius: 8px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

.app {
    min-height: 100vh;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 24px;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--critical), var(--warning));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.repo-selector {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: var(--radius);
    font-size: 14px;
    cursor: pointer;
}

.last-scan {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Main */
.main {
    padding: 24px;
    max-width: 1600px;
    margin: 0 auto;
}

/* Alert Banner */
.alert-banner {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 24px;
}

.alert-banner.critical {
    background: var(--critical-bg);
    border: 1px solid var(--critical);
}

.alert-icon {
    font-size: 20px;
}

.alert-text {
    flex: 1;
    font-size: 14px;
}

.alert-action {
    background: var(--critical);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s;
}

.alert-action:hover {
    opacity: 0.9;
}

/* Stats Row */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.stat-value {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-value.critical { color: var(--critical); }
.stat-value.warning { color: var(--warning); }
.stat-value.good { color: var(--good); }
.stat-value.waste { color: var(--over); }

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.stat-trend {
    font-size: 12px;
    padding: 4px 8px;
    border-radius: 4px;
    display: inline-block;
}

.stat-trend.up { color: var(--critical); background: var(--critical-bg); }
.stat-trend.down { color: var(--good); background: var(--good-bg); }
.stat-trend.neutral { color: var(--text-secondary); background: rgba(139, 148, 158, 0.1); }

/* Sections */
.section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 16px;
    font-weight: 600;
}

.section-subtitle {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Main Grid */
.main-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

/* Heatmap */
.view-toggle {
    display: flex;
    gap: 4px;
}

.toggle-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 6px 12px;
    font-size: 13px;
    cursor: pointer;
    border-radius: var(--radius);
    transition: all 0.2s;
}

.toggle-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.heatmap-container {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 4px;
    margin-bottom: 16px;
}

.heatmap-cell {
    aspect-ratio: 1;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
    overflow: hidden;
}

.heatmap-cell:hover {
    transform: scale(1.1);
    z-index: 10;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.heatmap-cell.critical { background: var(--critical); }
.heatmap-cell.warning { background: var(--warning); }
.heatmap-cell.good { background: var(--good); }
.heatmap-cell.over { background: var(--over); }

.heatmap-cell .cell-label {
    color: white;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    text-align: center;
    padding: 4px;
    word-break: break-all;
}

.heatmap-legend {
    display: flex;
    gap: 20px;
    justify-content: center;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-secondary);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 2px;
}

.legend-color.critical { background: var(--critical); }
.legend-color.warning { background: var(--warning); }
.legend-color.good { background: var(--good); }
.legend-color.over { background: var(--over); }

/* Blind Spots List */
.blindspot-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 400px;
    overflow-y: auto;
}

.blindspot-item {
    background: var(--bg-dark);
    border-radius: var(--radius);
    padding: 12px;
    cursor: pointer;
    transition: background 0.2s;
    border-left: 3px solid var(--critical);
}

.blindspot-item:hover {
    background: var(--bg-card-hover);
}

.blindspot-path {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 13px;
    color: var(--text-primary);
    margin-bottom: 8px;
    word-break: break-all;
}

.blindspot-stats {
    display: flex;
    gap: 16px;
    font-size: 12px;
}

.blindspot-stat {
    display: flex;
    align-items: center;
    gap: 4px;
}

.blindspot-stat.risk { color: var(--critical); }
.blindspot-stat.attention { color: var(--text-secondary); }
.blindspot-stat.changes { color: var(--warning); }

/* Comparison Section */
.comparison-section {
    margin-bottom: 24px;
}

.time-range {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 6px 10px;
    border-radius: var(--radius);
    font-size: 13px;
    cursor: pointer;
}

.comparison-chart {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.chart-row {
    display: grid;
    grid-template-columns: 200px 1fr 80px;
    gap: 16px;
    align-items: center;
    padding: 8px 0;
}

.chart-row.header {
    font-size: 12px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
    margin-bottom: 8px;
}

.chart-row.header .chart-bars {
    display: flex;
    justify-content: space-between;
}

.chart-label {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 13px;
    color: var(--text-primary);
}

.chart-bars {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.chart-bar {
    height: 12px;
    border-radius: 2px;
    transition: width 0.5s ease;
}

.chart-bar.risk {
    background: linear-gradient(90deg, var(--critical), var(--warning));
}

.chart-bar.attention {
    background: linear-gradient(90deg, var(--info), var(--good));
}

.chart-gap {
    font-size: 13px;
    font-weight: 600;
    text-align: right;
}

.chart-gap.critical { color: var(--critical); }
.chart-gap.warning { color: var(--warning); }
.chart-gap.good { color: var(--good); }

/* Bottom Grid */
.bottom-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

/* Integrations */
.integrations-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.integration {
    display: grid;
    grid-template-columns: 30px 1fr auto auto;
    gap: 12px;
    align-items: center;
    padding: 12px;
    background: var(--bg-dark);
    border-radius: var(--radius);
}

.int-icon {
    font-size: 20px;
}

.int-name {
    font-weight: 500;
}

.int-status {
    font-size: 12px;
    padding: 4px 8px;
    border-radius: 4px;
}

.integration.connected .int-status {
    color: var(--good);
    background: var(--good-bg);
}

.integration.disconnected .int-status {
    color: var(--text-secondary);
    background: rgba(139, 148, 158, 0.1);
}

.int-data {
    font-size: 12px;
    color: var(--text-secondary);
}

.connect-btn {
    background: var(--accent);
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: var(--radius);
    font-size: 12px;
    cursor: pointer;
}

/* Drift Chart */
.drift-chart {
    height: 120px;
    display: flex;
    align-items: flex-end;
    gap: 4px;
    padding: 12px 0;
    margin-bottom: 16px;
}

.drift-bar {
    flex: 1;
    border-radius: 2px 2px 0 0;
    transition: height 0.3s;
    cursor: pointer;
}

.drift-bar:hover {
    opacity: 0.8;
}

.drift-insights {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.insight {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 10px;
    border-radius: var(--radius);
    font-size: 13px;
}

.insight.warning {
    background: var(--warning-bg);
    color: var(--warning);
}

.insight.info {
    background: var(--info-bg);
    color: var(--info);
}

.insight-icon {
    flex-shrink: 0;
}

/* Modal */
.file-detail-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 200;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.file-detail-modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    line-height: 1;
}

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

.modal-header {
    padding: 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
}

.modal-header h3 {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 14px;
    word-break: break-all;
}

.modal-risk {
    font-size: 11px;
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: 600;
    white-space: nowrap;
}

.modal-risk.critical {
    background: var(--critical-bg);
    color: var(--critical);
}

.modal-body {
    padding: 20px;
}

.modal-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.modal-stat {
    text-align: center;
    padding: 16px;
    background: var(--bg-dark);
    border-radius: var(--radius);
}

.modal-stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.modal-stat-value {
    font-size: 24px;
    font-weight: 700;
}

.modal-stat-value.high { color: var(--critical); }
.modal-stat-value.low { color: var(--text-secondary); }
.modal-stat-value.critical { color: var(--critical); }

.modal-details h4 {
    font-size: 14px;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.risk-factors, .attention-history {
    list-style: none;
    margin-bottom: 20px;
}

.risk-factors li, .attention-history li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
    display: flex;
    gap: 8px;
}

.factor-weight {
    color: var(--critical);
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-weight: 600;
}

.history-date {
    color: var(--text-secondary);
    font-size: 12px;
    min-width: 60px;
}

.modal-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.btn-primary {
    flex: 1;
    background: var(--critical);
    color: white;
    border: none;
    padding: 12px;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
}

.btn-secondary {
    flex: 1;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: 12px;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
}

/* Responsive */
@media (max-width: 1200px) {
    .main-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .bottom-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 12px;
    }
    
    .stats-row {
        grid-template-columns: 1fr;
    }
    
    .heatmap-container {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .chart-row {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .heatmap-legend {
        flex-wrap: wrap;
    }
}