* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 13px;
    background-color: #f5f5f5;
    color: #333333;
    line-height: 1.4;
    padding: 20px;
}

.main-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.form-container {
    background-color: #ffffff;
    padding: 30px;
    border: 1px solid #cccccc;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.form-title {
    font-size: 20px;
    font-weight: bold;
    color: #DB3E3E;
    margin-bottom: 25px;
    text-align: left;
    padding-bottom: 10px;
    border-bottom: 2px solid #DB3E3E;
}

.section {
    margin-bottom: 25px;
}

.section-title {
    font-size: 16px;
    font-weight: bold;
    color: #333333;
    margin-bottom: 15px;
    text-align: left;
}

.proveedor-box {
    background-color: #f9f9f9;
    border: 1px solid #dddddd;
    padding: 15px;
    margin-bottom: 15px;
}

.proveedor-box p {
    margin: 5px 0;
    font-size: 13px;
    color: #333333;
    line-height: 1.6;
}

.proveedor-box p:first-child {
    font-weight: bold;
    font-size: 14px;
    margin-bottom: 8px;
}

.form-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 15px;
}

.form-table tr {
    border-bottom: 1px solid #eeeeee;
}

.form-table tr:last-child {
    border-bottom: none;
}

.label-cell {
    width: 150px;
    padding: 8px 10px;
    vertical-align: top;
    background-color: #f9f9f9;
    font-weight: normal;
    text-align: left;
}

.label-cell label {
    font-size: 13px;
    color: #333333;
    font-weight: normal;
    display: block;
}

.input-cell {
    padding: 8px 10px;
    vertical-align: top;
}

.input-field {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid #999999;
    font-size: 13px;
    font-family: Arial, Helvetica, sans-serif;
    background-color: #ffffff;
    color: #333333;
}

.input-field.campo-error {
    border-color: #dc3545 !important;
    border-width: 1px !important;
    /*background-color: #fdeaea;
    box-shadow: 0 0 0 2px rgba(220, 53, 69, 0.35);*/
}

/* Forzar mayúsculas en textos (no afecta al email) */
input[type="text"].input-field,
input[type="tel"].input-field,
textarea.input-field {
    text-transform: uppercase;
}

.input-field:focus {
    outline: 1px solid #999999;
    border-color: #999999;
}

.input-field select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath fill='%238B0000' d='M5 7L1 3h8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    padding-right: 25px;
}

.textarea-field {
    resize: vertical;
    min-height: 80px;
    font-family: Arial, Helvetica, sans-serif;
}

.tipo-explicacion {
    margin-top: 10px;
    padding: 10px;
    background-color: #fff5f5;
    border-left: 3px solid #DB3E3E;
    font-size: 12px;
    line-height: 1.6;
}

.tipo-explicacion p {
    margin: 5px 0;
    color: #333333;
}

.tipo-explicacion strong {
    color: #DB3E3E;
    font-weight: bold;
}

.form-buttons {
    text-align: right;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #dddddd;
}

.btn {
    padding: 8px 20px;
    font-size: 13px;
    font-family: Arial, Helvetica, sans-serif;
    border: 1px solid #999999;
    cursor: pointer;
    margin-left: 10px;
    background-color: #ffffff;
    color: #333333;
}

.btn-enviar {
    background-color: #DB3E3E;
    color: #ffffff;
    border-color: #DB3E3E;
}

.btn-enviar:hover {
    background-color: #6B0000;
    border-color: #6B0000;
}

.btn-limpiar {
    background-color: #f5f5f5;
    color: #333333;
}

.btn-limpiar:hover {
    background-color: #e0e0e0;
}

.btn-guardar {
    background-color: #28a745;
    color: #ffffff;
    border-color: #28a745;
}

.btn-guardar:hover {
    background-color: #218838;
    border-color: #1e7e34;
}

.btn-info {
    background-color: #007bff;
    color: #ffffff;
    border-color: #007bff;
}

.btn-info:hover {
    background-color: #0069d9;
    border-color: #0062cc;
}
.btn-alerta {
    background-color: #ffc107;
    color: #333333;
    border-color: #ffc107;
}

.btn-alerta:hover {
    background-color: #e0a800;
    border-color: #d39e00;
}
.mensaje {
    margin-top: 20px;
    padding: 12px 15px;
    border-radius: 4px;
    display: none;
    font-size: 13px;
}

.mensaje.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.mensaje.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

.mensaje.info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
    display: block;
}

/* Responsive - Tablets */
@media (max-width: 1024px) and (min-width: 769px) {
    body {
        padding: 15px;
    }

    .form-container {
        padding: 25px;
    }

    .label-cell {
        width: 120px;
        font-size: 12px;
    }

    .form-title {
        font-size: 18px;
        color: #DB3E3E;
    }

    .section-title {
        font-size: 15px;
    }
}

/* Responsive - Móviles */
@media (max-width: 768px) {
    body {
        padding: 10px;
        font-size: 14px;
    }

    .form-container {
        padding: 15px;
    }

    .form-title {
        font-size: 18px;
        margin-bottom: 20px;
        color: #DB3E3E;
    }

    .section-title {
        font-size: 15px;
    }

    .form-table {
        display: block;
    }

    .form-table tr {
        display: block;
        margin-bottom: 15px;
        border-bottom: 1px solid #dddddd;
        padding-bottom: 15px;
    }

    .label-cell,
    .input-cell {
        display: block;
        width: 100%;
        padding: 5px 0;
    }

    .label-cell {
        background-color: transparent;
        font-weight: bold;
        margin-bottom: 5px;
        width: 100%;
    }

    .input-field {
        font-size: 16px; /* Evita zoom en iOS */
        padding: 8px;
    }

    .form-buttons {
        text-align: center;
    }

    .btn {
        width: 100%;
        margin: 5px 0;
        padding: 10px 20px;
        font-size: 14px;
    }

    .proveedor-box {
        padding: 12px;
    }

    .proveedor-box p {
        font-size: 12px;
    }

    .tipo-explicacion {
        font-size: 11px;
    }
}

/* Responsive - Móviles pequeños */
@media (max-width: 480px) {
    body {
        padding: 5px;
    }

    .form-container {
        padding: 12px;
    }

    .form-title {
        font-size: 16px;
        color: #DB3E3E;
    }

    .section-title {
        font-size: 14px;
    }

    .btn {
        padding: 12px 20px;
        font-size: 15px;
    }
}