/* Fondo general */
* {
    box-sizing: border-box;
}

body {
    background-color: #99D5FF;
    background-image: radial-gradient(rgba(0, 0, 0, 0.2) 1px, transparent 1px);
    background-size: 6px 6px;

    font-family: 'Inter', Arial, sans-serif;
    color: #0a0a0a;
    margin: 0;
    padding: 20px;
    line-height: 1.5;
}

/* Contenedor del formulario */
.form-container {
    width: 100%;
    max-width: 500px;
    margin: 40px auto;
    padding: 28px;

    background: linear-gradient(145deg, #f4f8ff, #e3edff);
    border: 1px solid rgba(70, 91, 145, 0.35);
    border-radius: 16px;

    box-shadow: 0 5px 14px rgba(0, 0, 0, 0.14);
}

/* Título */
.form-container h2 {
    margin: 0 0 24px;
    padding: 18px 14px;

    text-align: center;
    font-size: 1.5rem;
    line-height: 1.35;
    color: #0a0a0a;

    background: linear-gradient(145deg, #eaf1ff, #d2e2ff);
    border: 1px solid rgba(70, 91, 145, 0.30);
    border-radius: 12px;

    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.10);
}

/* Etiquetas */
label {
    display: block;
    margin-top: 16px;
    margin-bottom: 5px;

    font-weight: 700;
    color: #111;
}

/* Campos de texto, selectores y mensaje */
input[type="text"],
input[type="email"],
input[type="tel"],
select,
textarea {
    display: block;
    width: 100%;
    padding: 11px 12px;
    margin-top: 5px;

    font-family: 'Inter', Arial, sans-serif;
    font-size: 1rem;
    color: #111;

    background: #fff;
    border: 1px solid rgba(70, 91, 145, 0.35);
    border-radius: 8px;

    box-shadow: 0 3px 7px rgba(0, 0, 0, 0.10);

    transition:
        border-color 0.18s ease,
        box-shadow 0.18s ease;
}

/* Texto de ayuda de los campos */
input::placeholder,
textarea::placeholder {
    color: #777;
    opacity: 1;
}

/* Foco en los campos */
input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: rgba(70, 91, 145, 0.75);
    box-shadow: 0 0 0 3px rgba(70, 91, 145, 0.12);
}

/* Área del mensaje */
textarea {
    resize: vertical;
    min-height: 120px;
}

/* Botón de envío */
button[type="submit"] {
    display: block;
    width: 100%;
    margin-top: 22px;
    padding: 13px 20px;

    font-family: 'Inter', Arial, sans-serif;
    font-size: 1rem;
    font-weight: 700;
    color: #0a0a0a;

    background: linear-gradient(145deg, #eaf1ff, #d2e2ff);
    border: 1px solid rgba(70, 91, 145, 0.35);
    border-radius: 9px;

    cursor: pointer;

    box-shadow: 0 4px 9px rgba(0, 0, 0, 0.14);

    transition:
        transform 0.18s ease,
        box-shadow 0.18s ease,
        background 0.18s ease;
}

/* Efecto al pasar el rat