body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #3498db, #9b59b6);
    color: #fff;
}

header {
    background: #333;
    color: #fff;
    padding: 20px 0;
    text-align: center;
}

.logo-container {
    max-width: 1000px;
    margin: 0 auto;
}

main {
    text-align: center;
    padding: 40px 20px;
}

.content {
    background-color: rgba(255, 255, 255, 0.9);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
}

h1 {
    color: #333;
}

p {
    color: #555;
    margin-bottom: 20px;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background: #2ecc71;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    transition: background 0.3s ease;
}

.btn:hover {
    background: #27ae60;
}