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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    background: #e1f7ef;
    background-image:
        radial-gradient(circle at 25% 25%, rgba(69, 176, 137, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(45, 125, 90, 0.1) 0%, transparent 50%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    margin: -20px -20px 20px -20px;
    border-radius: 0 0 20px 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: #45b089;
}

.nav-brand i {
    font-size: 1.8rem;
}

.social-icons {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    text-decoration: none;
    color: #666;
    border-radius: 50%;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.social-link:hover {
    background: #f0f0f0;
    color: #333;
    transform: translateY(-2px);
}

.nav-links {
    display: flex;
    gap: 1rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    color: #666;
    border-radius: 25px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-link:hover {
    background: #f0f0f0;
    color: #333;
}

.nav-link.active {
    background: #45b089;
    color: white;
}

.header {
    text-align: center;
    color: #45b089;
    margin-bottom: 30px;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.metric-card {
    background: white;
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s;
}

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

.metric-value {
    font-size: 2rem;
    font-weight: bold;
    color: #45b089;
    margin-bottom: 10px;
}

.metric-label {
    color: #666;
    font-size: 0.9rem;
}

.controls {
    background: white;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.controls h3 {
    margin-bottom: 15px;
    color: #333;
}

.filter-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.filter-group select, .filter-group button {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.filter-group button {
    background: #45b089;
    color: white;
    border: none;
    cursor: pointer;
    transition: background 0.2s;
}

.filter-group button:hover {
    background: #3a9a7a;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.chart-card {
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.chart-card h3 {
    margin-bottom: 15px;
    color: #333;
    border-bottom: 2px solid #eee;
    padding-bottom: 10px;
}

.chart-container {
    position: relative;
    height: 400px;
}

.chart-info {
    margin-bottom: 15px;
}

.info-box {
    background: #f8f9fa;
    border-left: 4px solid #45b089;
    padding: 10px 15px;
    border-radius: 5px;
    font-size: 0.9rem;
    color: #666;
}

.data-table {
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    overflow-x: auto;
}

.data-table table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.data-table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #555;
}

.footer {
    text-align: center;
    color: black;
    margin-top: 40px;
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .header h1 {
        font-size: 2rem;
    }

    .header p {
        font-size: 1rem;
    }

    .metrics-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .filter-group {
        grid-template-columns: 1fr;
        gap: 10px;
    }

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

    .navbar {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
        margin: -10px -10px 20px -10px;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 5px;
    }

    .header h1 {
        font-size: 1.8rem;
    }

    .metric-value {
        font-size: 1.5rem;
    }

    .navbar {
        margin: -5px -5px 20px -5px;
    }
}