* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

body {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    text-align: center;
    color: white;
    padding: 20px;
}

h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

.card {
    background: white;
    color: #333;
    padding: 30px;
    margin-top: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    animation: fadeIn 1s ease-in-out;
}

.card h1 {
    margin-bottom: 10px;
}

.btn {
    display: inline-block;
    margin-top: 20px;
    padding: 15px 25px;
    background: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-size: 18px;
    transition: 0.3s;
}

.btn:hover {
    background: #764ba2;
    transform: scale(1.05);
}

footer {
    margin-top: 30px;
    font-size: 14px;
    opacity: 0.8;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}