/* =========================
   ESTILO GENERAL
========================= */

body {
    margin: 0;
    padding: 30px;
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    color: #333;
}

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

form {
    max-width: 1000px;
    margin: auto;
    background: #ffffff;
    padding: 40px;
    border-radius: 18px;
    box-shadow: 0px 10px 30px rgba(0,0,0,0.12);
}

/* =========================
   TÍTULO PRINCIPAL
========================= */

h1 {
    text-align: center;
    color: #8B0000;
    font-size: 32px;
    margin-bottom: 35px;
    letter-spacing: 1px;
    border-bottom: 3px solid #8B0000;
    padding-bottom: 15px;
}

/* =========================
   SECCIONES
========================= */

.section {
    background: #fcfcfc;
    border: 1px solid #ececec;
    border-left: 6px solid #B22222;
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: 0px 4px 12px rgba(0,0,0,0.05);
}

/* =========================
   SUBTÍTULOS
========================= */

h2 {
    background: #B22222;
    color: white;
    padding: 12px 18px;
    border-radius: 8px;
    font-size: 20px;
    margin-top: 0;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

/* =========================
   LABELS
========================= */

label {
    display: block;
    margin-top: 12px;
    margin-bottom: 6px;
    font-weight: bold;
    color: #6b0000;
    font-size: 14px;
}

/* =========================
   INPUTS / SELECT / TEXTAREA
========================= */

input,
select,
textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #dcdcdc;
    border-radius: 8px;
    font-size: 14px;
    background: #fff;
    transition: 0.3s;
    box-sizing: border-box;
}

/* FOCUS */

input:focus,
select:focus,
textarea:focus {
    border-color: #B22222;
    outline: none;
    box-shadow: 0px 0px 8px rgba(178,34,34,0.15);
}

/* TEXTAREA */

textarea {
    min-height: 100px;
    resize: vertical;
}

/* =========================
   CHECKBOX Y RADIO
========================= */

input[type="checkbox"],
input[type="radio"] {
    width: auto;
    margin-right: 8px;
    transform: scale(1.1);
}

/* =========================
   INPUT FILE
========================= */

input[type="file"] {
    background: #fafafa;
    border: 2px dashed #B22222;
    padding: 12px;
    border-radius: 10px;
}

/* =========================
   REQUIRED ROJO
========================= */

input:invalid {
    border-color: #cc0000;
}

/* =========================
   BOTONES
========================= */

.btn-pdf,
button {
    background: #B22222;
    color: rgb(151, 148, 148);
    border: none;
    padding: 14px 28px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 15px;
    font-weight: bold;
    transition: 0.3s;
    box-shadow: 0px 6px 15px rgba(0,0,0,0.12);
}

/* HOVER */

.btn-pdf:hover,
button:hover {
    background: #8B0000;
    transform: translateY(-2px);
}

/* BOTÓN FINAL */

button[type="submit"] {
    width: 100%;
    font-size: 18px;
    margin-top: 20px;
    padding: 16px;
}

/* =========================
   INPUT READONLY (FOLIO)
========================= */

input[readonly] {
    background: #f0f0f0;
    font-weight: bold;
    color: #8B0000;
}

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

@media (max-width: 768px) {
    body {
        padding: 15px;
    }

    form {
        padding: 20px;
    }

    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 18px;
    }
}