/* Fondo general */
body {
    background-color: rgb(255, 220, 229); /* rosa pastel */
    font-family: 'Arial', sans-serif;
    color: #5a4750; /* texto café oscuro */
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 50px 20px;
    min-height: 100vh;
}

/* Inputs y select */
input[type="number"],
input[type="text"],
select {
    width: 100%;
    max-width: 300px;
    padding: 10px 15px;
    margin: 10px 0;
    border: 1px solid #d9bda7; /* borde café suave */
    border-radius: 10px;
    background-color: #fdf2ec; /* café muy clarito */
    font-size: 16px;
    color: #5a4750;
    box-sizing: border-box;
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

/* Placeholder */
::placeholder {
    color: #a87f6f; /* café medio */
}

/* Botón de cálculo */
input[type="submit"] {
    background-color: #c9a27e; /* café cálido */
    color: white;
    border: none;
    padding: 12px 25px;
    margin-top: 10px;
    font-weight: bold;
    border-radius: 10px;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.2s ease;
}

input[type="submit"]:hover {
    background-color: #b58a63; /* café un poco más oscuro */
    transform: scale(1.03);
}