body {
    margin: 0;
    font-family: 'Arial', sans-serif;
    background: linear-gradient(#FF0000, #1e8e3f, #2b9e6b);
    color: white;
    text-align: center;
    padding: 0;
}

header {
    padding: 50px 0;
    font-size: 40px;
    font-weight: bold;
    background: rgba(0, 0, 0, 0.7);
    text-transform: uppercase;
    letter-spacing: 3px;
    color: white;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

nav {
    margin: 30px 0;
}

nav button {
    padding: 15px 30px;
    margin: 15px;
    border: none;
    cursor: pointer;
    border-radius: 12px;
    background: #ffffff;
    color: #1e8e3f;
    font-weight: bold;
    font-size: 18px;
    transition: 0.4s ease;
    box-shadow: 0px 6px 20px rgba(0, 0, 0, 0.2);
}

nav button:hover {
    background: #000000;
    color: white;
    transform: scale(1.05);
}

.card {
    background: rgba(255, 255, 255, 0.2);
    margin: 30px auto;
    padding: 40px;
    width: 80%;
    max-width: 950px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    text-align: left;
}

.card h2 {
    font-size: 32px;
    color: #fff;
}

.card p {
    font-size: 20px;
    line-height: 1.6;
    margin: 15px 0;
}

footer {
    margin-top: 40px;
    padding: 20px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    font-size: 16px;
}

footer a {
    color: #81c784;
    text-decoration: none;
    font-weight: bold;
}

footer a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .card {
        width: 95%;
        padding: 25px;
    }

    header {
        font-size: 28px;
    }

    nav button {
        font-size: 16px;
        padding: 12px 20px;
    }
}