* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    min-height: 100vh;

    font-family: Arial, sans-serif;

    background:
        radial-gradient(circle at top, #ffb6d9, transparent 40%),
        linear-gradient(135deg, #6a11cb, #2575fc);

    display: flex;
    justify-content: center;
    align-items: center;

    padding: 20px;
}

.contenedor {
    width: 100%;
    max-width: 500px;
}

.tarjeta {
    background: rgba(255, 255, 255, 0.95);

    padding: 40px 25px;

    border-radius: 25px;

    text-align: center;

    box-shadow:
        0 20px 50px rgba(0, 0, 0, 0.25);

    animation: aparecer 1s ease;
}

.emoji {
    font-size: 70px;

    animation: flotar 2s infinite ease-in-out;
}

h1 {
    margin-top: 15px;

    font-size: 36px;

    color: #d63384;
}

.mensaje {
    margin-top: 15px;

    font-size: 18px;

    color: #555;
}

button {
    margin-top: 30px;

    padding: 14px 25px;

    border: none;
    border-radius: 30px;

    background: #d63384;

    color: white;

    font-size: 16px;

    cursor: pointer;

    transition: 0.3s;
}

button:hover {
    transform: scale(1.08);

    background: #b82c70;
}

.oculto {
    display: none;

    margin-top: 25px;

    font-size: 20px;

    color: #d63384;
}

.mostrar {
    display: block;

    animation: aparecer 0.7s ease;
}

@keyframes aparecer {

    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }

}

@keyframes flotar {

    0%, 100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }

}

/* 📱 Celulares */

@media (max-width: 500px) {

    .tarjeta {
        padding: 35px 20px;
    }

    h1 {
        font-size: 30px;
    }

    .emoji {
        font-size: 60px;
    }

}