body {
    background: #e4f7ac;
    font-family: 'Segoe UI', Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
.container {
    max-width: 400px;
    margin: 80px auto;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.07);
    padding: 40px 32px;
    text-align: center;
}
h1 {
    margin-bottom: 18px;
    color: #0a2540;
    font-size: 2rem;
    letter-spacing: 1px;
}
p {
    color: #555;
    margin-bottom: 30px;
    font-size: 1.1rem;
}
.btn-group {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
button {
    padding: 14px 0;
    font-size: 1.1rem;
    border: none;
    border-radius: 8px;
    background: #0066ff;
    color: #fff;
    cursor: pointer;
    transition: background 0.2s;
}
button:hover {
    background: #004bb5;
}