body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
    color: #333;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
 
header {
    background-color: #5f6368;
    color: white;
    padding: 15px 20px;
    text-align: center;
}

main {
    flex: 1;
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
}

section {
    background: white;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1), -4px 0 8px rgba(0,0,0,0.05), 4px 0 8px rgba(0,0,0,0.05);
}

h2 {
    color: #5f6368;
    border-bottom: 2px solid #5f6368;
    padding-bottom: 8px;
    margin-top: 0;
    margin-bottom: 15px;
}

ul {
    line-height: 1.6;
}

.note {
    background: #f5f5f5;
    padding: 15px;
    border-left: 4px solid #5f6368;
    margin: 15px 0;
    border-radius: 4px;
}

a {
    color: #5f6368;
    text-decoration: none;
    font-weight: bold;
}

a:hover {
    text-decoration: underline;
}

footer {
    background-color: #5f6368;
    color: white;
    padding: 15px;
    text-align: center;
    margin-top: auto;
}