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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    margin-top: 20px;
    margin-bottom: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

header {
    text-align: center;
    padding: 40px 0;
    border-bottom: 2px solid #eee;
    margin-bottom: 40px;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 20px;
}

.navigation {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 30px 0;
    flex-wrap: wrap;
}

.nav-btn {
    padding: 12px 24px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.nav-btn.active {
    background: linear-gradient(45deg, #764ba2, #667eea);
}

.section {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.target-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

.target-card {
    background: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
}

.target-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.target-title {
    font-size: 1.3rem;
    font-weight: bold;
    color: #333;
    margin-bottom: 15px;
    padding: 10px 15px;
    background: linear-gradient(45deg, #f8f9ff, #e8f1ff);
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.target-text {
    font-style: italic;
    color: #555;
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 3px solid #28a745;
}

.graph-container {
    text-align: center;
    margin: 20px 0;
}

.graph-container img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.graph-container img:hover {
    transform: scale(1.05);
}

.loading {
    text-align: center;
    padding: 40px;
    color: #666;
}

.error-message {
    background: #f8d7da;
    color: #721c24;
    padding: 15px;
    border-radius: 8px;
    margin: 10px 0;
    text-align: center;
}

.stats-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.stat-card {
    background: white;
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    color: #667eea;
}

.stat-label {
    color: #666;
    margin-top: 5px;
}

/* Table styles */
.table-container {
    margin: 30px 0;
    overflow-x: auto;
}

.styled-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.styled-table thead {
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: #fff;
    text-align: left;
}

.styled-table th, .styled-table td {
    padding: 12px 15px;
    border-bottom: 1px solid #e0e0e0;
    vertical-align: top;
}

.styled-table tr:hover {
    background: #f8f9fa;
}

@media (max-width: 768px) {
    .container {
        margin: 10px;
        padding: 15px;
    }

    h1 {
        font-size: 2rem;
    }

    .navigation {
        flex-direction: column;
        align-items: center;
    }

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

    .stats-overview {
        grid-template-columns: 1fr 1fr;
    }
}