body {
        font-family: 'Poppins', sans-serif;
        background: linear-gradient(135deg, #ff7eb3, #ff758c, #ff7eb3);
        color: white;
        text-align: center;
        margin: 0;
        padding: 20px;
    }
    .container {
        max-width: 500px;
        margin: auto;
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(10px);
        padding: 20px;
        border-radius: 15px;
        box-shadow: 0 0 15px rgba(0, 0, 0, 0.2);
    }
    header {
        margin-bottom: 20px;
    }
    .btn {
        display: block;
        padding: 15px;
        margin: 10px 0;
        background: white;
        color: #ff758c;
        font-size: 18px;
        font-weight: bold;
        border-radius: 30px;
        text-decoration: none;
        transition: 0.3s;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    }
    .btn:hover {
        background: #ff4f7b;
        color: white;
        transform: scale(1.05);
        box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
    }
    footer {
        margin-top: 20px;
        font-size: 14px;
    }