* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background: #f4f4f4;
    color: #222;
    line-height: 1.6;
}

header {
    background: #111;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

header img {
    height: 60px;
}

nav {
    background: #222;
    display: flex;
    justify-content: center;
    padding: 15px 10px;
}

nav a {
    color: white;
    text-decoration: none;
    font-size: 17px;
    font-weight: bold;
    padding-bottom: 4px;
}

nav a:hover {
    color: gold;
    border-bottom: 2px solid gold;
}

.main {
    max-width: 1100px;
    margin: 40px auto;
    padding: 20px;
}

.titulo-seccion {
    text-align: center;
    font-size: 36px;
    font-weight: 900;
    margin-bottom: 10px;
}

.subtexto {
    text-align: center;
    font-size: 17px;
    margin-bottom: 25px;
}

.boton-grande {
    display: inline-block;
    padding: 15px 28px;
    font-size: 18px;
    background: orange;
    color: #111;
    text-decoration: none;
    font-weight: bold;
    border-radius: 6px;
}

.error{
    color: red;
    font-size: 24px;
}


.boton-grande:hover {
    background: gold;
    color: black;
}

.card {
    background: white;
    padding: 25px;
    border-radius: 8px;
    border: 1px solid #ddd;
    margin-bottom: 25px;
    box-shadow: 2px 8px;
}

form {
    background: white;
    padding: 30px;
    max-width: 550px;
    margin: auto;
    border-radius: 8px;
    border: 1px solid #ddd;
}

form label {
    font-weight: bold;
    margin-bottom: 6px;
    display: block;
}

form input,
form select,
form textarea {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
}

button {
    padding: 12px 20px;
    background: #111;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 6px;
    font-size: 16px;
    font-weight: bold;
}

button:hover {
    background: gold;
    color: black;
}

footer {
    background: #111;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
}

@media (max-width: 480px) {
    header {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }

    nav {
        flex-direction: column;
        gap: 10px;
    }

    nav a {
        width: 100%;
        text-align: center;
    }

    main, .contenedor {
        padding: 0 10px;
    }

    form, .card {
        width: 100%;
        padding: 20px;
    }
}

@media (max-width: 640px) {
    .titulo-seccion {
        font-size: 39px;
        text-align: center;
    }

    .boton-grande {
        width: 100%;
    }
}

@media (max-width: 1024px) {
    header {
        padding: 15px;
    }

    nav a {
        padding: 10px;
    }

    .card {
        margin-bottom: 20px;
    }

    form {
        width: 90%;
        margin: auto;
    }
}


@media (max-width: 1280px) {
    main {
        padding: 0 30px;
    }
}