:root {
    --bg-color: #0b0f19;
    --card-bg: #161b26;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --border-color: #1e293b;
    --alert-color: #ef4444;    
    --success-color: #10b981;
}

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

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

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.main-header {
    border-bottom: 1px solid var(--border-color);
    padding: 30px 0;
    background-color: rgba(11, 15, 25, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.main-header h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(90deg, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.main-header .subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.metric-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.metric-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.metric-card.alert-card {
    border-left: 4px solid var(--alert-color);
}

.metric-title {
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.metric-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.metric-value-list {
    list-style: none;
    font-size: 13px;
    margin-top: 5px;
}

.metric-value-list li {
    margin-bottom: 4px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding-bottom: 2px;
    display: flex;
    justify-content: space-between;
}
.metric-value-list li:last-child {
    border-bottom: none;
}

.top-risk-card {
    grid-column: span 2;
}

@media (max-width: 768px) {
    .top-risk-card {
        grid-column: span 1;
    }
}

/* Controls */
.controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.filters {
    display: flex;
    gap: 15px;
    flex: 1;
}

.search-box input, .category-filter select {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 15px;
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
}

.search-box input {
    width: 250px;
}

.search-box input:focus, .category-filter select:focus {
    border-color: var(--accent);
}

.styled-select {
    cursor: pointer;
    min-width: 200px;
}

.view-switch {
    display: flex;
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 4px;
    border: 1px solid var(--border-color);
}

.switch-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 6px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

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

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

/* Chart Area */
.visualization-container {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    height: 700px;
    margin-bottom: 40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

#chart-div {
    width: 100%;
    height: 100%;
}

footer {
    border-top: 1px solid var(--border-color);
    padding: 30px 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 12px;
    margin-top: 40px;
}