@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600&display=swap');

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

body {
    margin: 0;
    font-family: "Poppins", sans-serif;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #2f2f2f;
    overflow: hidden;
    animation: fadeIn 1.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.card {
    width: 90%;
    max-width: 600px;
    padding: 22px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 22px;
    backdrop-filter: blur(12px);
    text-align: center;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.25);
    animation: slideUp 1s ease;
    margin: 0 auto;
}

@keyframes slideUp {
    from {
        transform: translateY(40px);
        opacity: 0;
    }

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

.mensaje-romantico {
    font-size: 14px;
    color: #2c4635;
    opacity: 0;
    animation: suave 2.4s ease forwards;
}

@keyframes suave {
    to {
        opacity: 1;
    }
}

h2 {
    font-size: 26px;
    color: #24402d;
    margin: 10px 0;
}

p {
    color: #2e4633;
    margin-bottom: 18px;
    font-size: 14px;
}

input,
button {
    width: 100%;
    max-width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border-radius: 12px;
    border: 1px solid #bdd8c2;
    outline: none;
    font-size: 15px;
    transition: 0.25s ease;
    cursor: pointer;
}

input:focus {
    transform: scale(1.03);
    border-color: #7ccf9c;
    box-shadow: 0 0 10px rgba(124, 207, 156, 0.5);
}

input:active {
    transform: scale(1.05);
}

button {
    padding: 14px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, #7ad38c, #4caf50);
    color: white;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: 0.25s ease;
}

button:hover {
    transform: scale(1.03);
    box-shadow: 0 8px 16px rgba(76, 175, 80, 0.4);
}

button:active {
    transform: scale(1.07);
}

button.loading {
    cursor: default;
}

button.loading .btn-text {
    color: transparent;
}

button .progress {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 0%;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    transition: width 0.3s ease;
}

#mensaje-final {
    margin-top: 18px;
    font-weight: bold;
    color: #1b4d2b;
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

#mensaje-final.mostrar {
    opacity: 1;
    transform: scale(1);
}

#sorpresa {
    margin-top: 10px;
    color: #2d372c;
    font-size: 13px;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

#sorpresa.mostrar {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 480px) {
    .card {
        width: 98%;
        max-width: none;
        padding: 16px;
        border-radius: 14px;
        margin: 1%;
    }

    input,
    button {
        font-size: 14px;
        padding: 12px;
    }
}