:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent-total: #3b82f6;
    --accent-tkr: #ef4444;
    --accent-tsm: #f59e0b;
    --accent-tkj: #10b981;
    --card-border: rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: radial-gradient(circle at top right, #1e293b, transparent 40%),
                      radial-gradient(circle at bottom left, #1e293b, transparent 40%);
}

.dashboard-container {
    width: 100%;
    max-width: 1200px;
    padding: 2rem;
}

.dashboard-header {
    text-align: center;
    margin-bottom: 3rem;
}

.dashboard-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.dashboard-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: 1rem;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-card.total:hover { box-shadow: 0 10px 20px rgba(59, 130, 246, 0.2); }
.stat-card.tkr:hover { box-shadow: 0 10px 20px rgba(239, 68, 68, 0.2); }
.stat-card.tsm:hover { box-shadow: 0 10px 20px rgba(245, 158, 11, 0.2); }
.stat-card.tkj:hover { box-shadow: 0 10px 20px rgba(16, 185, 129, 0.2); }

.stat-icon {
    font-size: 2.5rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem;
    border-radius: 1rem;
}

.stat-info h3 {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
}

.chart-container {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.chart-wrapper {
    position: relative;
    height: 400px;
    width: 100%;
}

@media (max-width: 768px) {
    .dashboard-header h1 {
        font-size: 2rem;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
}