/* ===== FORMULARIO ===== */

main {
    text-align: center;
    margin-top: 10px;
}

form {
    background-color: #d6edff;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.10);
    margin-bottom: 20px;
    width: 30%;
    min-width: 280px;           /* evita que se haga demasiado pequeño */
    max-width: 600px;           /* para pantallas muy grandes */
    display: inline-block;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* Animación al pasar el mouse */
form:hover {
    transform: scale(1.03);
    box-shadow:0 0 10px rgba(0, 0, 0, 0.5);
}

/* Inputs generales */
form input,
form select,
form textarea {
    width: 100%;                /* RESPONSIVO */
    max-width: 100%;            /* IMPORTANTE para evitar que crezca más del contenedor */
    padding: 6px;
    padding-left: 12px;   /* Solo a la izquierda */
    padding-right: 12px;
    border: 1px solid #888;
    border-radius: 15px;
    font-family: Georgia, 'Times New Roman', Times, serif;
    box-sizing: border-box;      /* evita que aumente el tamaño total */
    transition: 0.1s ease;
}

/* Hover */
form input:hover,
form select:hover,
form textarea:hover {
    border-color: #0044aa;
    box-shadow: 0 0 7px #88b6ff;
}

/* Focus */
form input:focus,
form select:focus,
form textarea:focus {
    outline: none;
    border-color: #003388;
    box-shadow: 0 0 10px #6aa8ff;
}

form label {
    display: block;
    width: 100%;
    text-align: left;
    font-weight: bold;
    margin-bottom: 5px;
}

/* Botones */
form button {
    background-color: rgb(0, 0, 101);
    color: white;
    padding: 8px 10px;
    border-radius: 10px;
    font-weight: bold;
    margin: 12px;
    display: inline-block;
    transition: 0.2s ease;
    max-width: 80%;
}

form button:hover {
    cursor: pointer;
    transform: scale(1.1);
}

/* =======================
    RESPONSIVE
======================= */

/* Tablets (≤ 992px) */
@media (max-width: 992px) {
    form {
        width: 50%;
    }
}

/* Tablets pequeñas / celulares grandes (≤ 768px) */
@media (max-width: 768px) {
    form {
        width: 70%;
    }
}

/* Celulares (≤ 480px) */
@media (max-width: 480px) {
    form {
        width: 85%;
        padding: 15px;
    }

    form button {
        width: 100%;             /* botón ancho completo */
    }
}

/* Celulares muy pequeños (≤ 350px) */
@media (max-width: 350px) {
    form {
        width: 90%;
        padding: 12px;
    }

    form input,
    form select,
    form textarea {
        font-size: 0.9em;
    }
}