:root {
    --bg-color: #0f1115;
    --card-bg: #1e222d;
    --text-primary: #e0e3eb;
    --text-secondary: #787b86;
    --accent: #2962ff;
    --gap: 20px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
}

h1 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 10px;
    background: linear-gradient(45deg, #2962ff, #2979ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--gap);
    max-width: 1600px;
    margin: 0 auto;
}

.chart-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    height: 500px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: transform 0.2s ease;
}

.chart-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* TradingView Widget Container specific styles */
.tradingview-widget-container {
    height: 100%;
    width: 100%;
}

@media (max-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .chart-card {
        height: 400px;
    }
}