/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

h1 {
    color: #2c3e50;
    font-size: 28px;
    margin-bottom: 10px;
    text-align: center;
}

.subtitle {
    text-align: center;
    color: #7f8c8d;
    font-size: 16px;
    margin-bottom: 30px;
}

h2 {
    color: #34495e;
    font-size: 20px;
    margin-top: 30px;
    margin-bottom: 15px;
    border-bottom: 3px solid #3498db;
    padding-bottom: 8px;
}

/* Chart container */
.chart-container {
    position: relative;
    background: #f8f9fa;
    border-radius: 12px;
    padding: 30px;
    margin: 30px 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Metrics panel */
.metrics-panel {
    margin: 30px 0;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.metric-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.metric-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.metric-card.highlight {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.metric-card.success {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    color: white;
}

.metric-value {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 8px;
}

.metric-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.9;
}

/* Analysis section */
.analysis {
    background: #f8f9fa;
    border-left: 4px solid #3498db;
    border-radius: 8px;
    padding: 20px;
    margin-top: 30px;
}

.analysis p {
    margin-bottom: 15px;
    line-height: 1.6;
    color: #555;
}

.analysis p:last-child {
    margin-bottom: 0;
}

.analysis strong {
    color: #2c3e50;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 20px;
    }

    h1 {
        font-size: 22px;
    }

    .subtitle {
        font-size: 14px;
    }

    .chart-container {
        padding: 15px;
    }

    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .metric-value {
        font-size: 24px;
    }

    .metric-label {
        font-size: 10px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .container {
        padding: 15px;
    }

    .metrics-grid {
        grid-template-columns: 1fr;
    }
}

/* Print styles */
@media print {
    body {
        background: white;
        padding: 0;
    }

    .container {
        box-shadow: none;
        padding: 20px;
    }

    .metric-card {
        break-inside: avoid;
    }
}