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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px 20px;
    text-align: center;
}

h1 {
    font-size: 28px;
    margin-bottom: 10px;
}

.last-updated {
    font-size: 14px;
    opacity: 0.9;
}

nav {
    background: #f8f9fa;
    padding: 15px 20px;
    border-bottom: 1px solid #e9ecef;
}

.nav-links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.nav-links a {
    color: #495057;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 20px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-links a:hover {
    background: #e9ecef;
    transform: translateY(-2px);
}

.nav-links a.active {
    background: #667eea;
    color: white;
}

.content {
    padding: 30px;
}

h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f8f9fa;
}

h3 {
    color: #34495e;
    margin: 25px 0 15px 0;
    font-size: 1.2em;
}

p {
    margin-bottom: 15px;
}

ul, ol {
    margin-bottom: 20px;
    padding-left: 20px;
}

li {
    margin-bottom: 8px;
}

.highlight {
    background: #fff3cd;
    padding: 15px;
    border-left: 4px solid #ffc107;
    margin: 20px 0;
    border-radius: 4px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background: #f8f9fa;
    font-weight: 600;
    width: 30%;
    color: #2c3e50;
}

tr:hover {
    background: #f8f9fa;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 600px) {
    .container {
        border-radius: 0;
        margin: -20px;
    }
    
    .content {
        padding: 20px;
    }
    
    .nav-links {
        flex-direction: column;
        gap: 10px;
    }
    
    th, td {
        padding: 8px 10px;
        font-size: 14px;
    }
    
    th {
        width: 40%;
    }
}