body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center; 
    height: 100vh; 
    margin: 0;
    background: linear-gradient(to right, #6a11cb, #2575fc); 
    color: #fff; 
    animation: changeBackground 10s ease infinite;
}


@keyframes changeBackground {
    0%, 100% {
        background: linear-gradient(to right, #6a11cb, #2575fc); /* Morado y azul */
    }
    25% {
        background: linear-gradient(to right, #ff7e5f, #feb47b); /* Rojo a naranja */
    }
    50% {
        background: linear-gradient(to right, #56ccf2, #2f80ed); /* Azul a celeste */
    }
    75% {
        background: linear-gradient(to right, #ff9a8b, #ff6a88); /* Rosa a morado */
    }
}


.button-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center; 
    gap: 20px;
}

a.button {
    display: inline-block;
    padding: 15px 30px;
    background-color: #33b5c9; 
    color: white;
    text-align: center;
    text-decoration: none;
    border-radius: 8px;
    font-size: 20px;
    width: 350px; 
    min-width: 250px;
    max-width: 400px; 
    font-weight: bold;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2); 
    transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
    letter-spacing: 1px;
}


a.button:hover {
    background-color: #39e7f7;
    transform: translateY(-5px); 
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
    text-decoration: underline; 
}


a.button:focus {
    outline: none;
    border: 2px solid #fff;
}