* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.container {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    text-align: center;
    max-width: 500px;
}
h1 {
    color: #1e3c72;
    margin-bottom: 15px;
}
p {
    color: #555;
    margin: 10px 0;
    line-height: 1.6;
}
.btn {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 30px;
    background: #2a5298;
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    transition: 0.3s;
}
.btn:hover {
    background: #1e3c72;
    transform: scale(1.05);
}