* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f5f7fa;
    color: #202124;
    line-height: 1.6;
}

header {
    background: #1f2937;
    color: white;
    padding: 40px 20px;
    text-align: center;
}

header h1 {
    margin: 0 0 8px;
}

header p {
    margin: 0;
    opacity: 0.9;
}

main {
    max-width: 900px;
    margin: 40px auto;
    padding: 30px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

h2 {
    margin-top: 32px;
}

a {
    color: #2563eb;
}

.links {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 30px 0;
}

.links a {
    display: block;
    padding: 14px 18px;
    background: #f1f5f9;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
}

.links a:hover {
    background: #e2e8f0;
}

.updated {
    margin-top: 35px;
    color: #6b7280;
    font-size: 14px;
}

li {
    margin-bottom: 8px;
}

@media (max-width: 600px) {
    main {
        margin: 15px;
        padding: 20px;
    }

    header {
        padding: 30px 15px;
    }
}