.principal {
    display: grid;
    border-top: solid 10px #0059b8;
    grid-template-columns: 65% 35%;
}

.formColumn {
    background: white;
    padding-left: 17%;
    padding-right: 17%;
    padding-bottom: 10%;
    padding-top: 8%;
    animation: fadeInLeft 0.8s ease-out;
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.formColumn h1 {
    font-size: 2.5rem;
    color: #001D3D;
    margin-bottom: 10px;
    font-family: anton;
    text-transform: uppercase;
}

.formColumn p {
    font-size: 18px;
    font-family: poppins;
    color: #001D3D;
    margin-bottom: 40px;
}

.progress-bar {
    display: grid;
    grid-template-columns: auto auto auto;
    justify-content: center;
    margin-top: 20px;
    gap: 50px;
    margin-bottom: 40px;
    position: relative;
}
.progress-bar::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 420px;
    height: 3px;
    background: #0059b8;
    z-index: 1;
}

.progress-step {
    text-align: center;
    position: relative;
    z-index: 2;
}

.progress-step::after {
    display: none;
}

.progress-step.completed::after {
    background: #0059b8;
}

.step-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border-color: #0059b8;
    border-style: solid;
    background: #fff;
    margin: 0 auto 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.1rem;
    color: #0059b8;
    transition: all 0.3s ease;
    position: relative;
    z-index: 3;
    background-color: #fff;
}

.progress-step.active .step-circle {
    background: #0059b8;
    color: white;
}
.progress-step.completed .step-circle {
    background: #0059b8;
    color: white;
}

.step-label {
    font-size: 0.9rem;
    font-family: poppins;
    color: #0059b8;
    font-weight: 600;
}

.progress-step.active .step-label {
    color: #0059b8;
}

/* Pasos del formulario */
.form-step {
    display: none;
    grid-column: 1 / -1;
    width: 100%;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
}

.form-step.active {
    display: grid;
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Textarea */
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border-radius: 15px;
    border: 1px solid #001d3d;
    font-size: 1rem;
    font-family: Arial, Helvetica, sans-serif;
    min-height: 120px;
    resize: vertical;
    transition: all 0.3s ease;
}

.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Navegación del formulario */
.form-navigation {
    grid-column: 1 / -1;
    display: flex;
    gap: 15px;
    justify-content: flex-end;
    margin-top: 10px;
}

/* Formulario con grid */
.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
}

/* Campo que ocupa 100% */
.form-group.full-width {
    grid-column: 1 / -1;
}

/* Campo que ocupa 50% */
.form-group.half-width {
    grid-column: span 1;
}

/* Etiquetas arriba del input - ALTERNATIVA */
.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
    font-family: poppins;
    color: #001d3d;
    font-size: 0.95rem;
    min-height: 30px; /* Altura mínima fija para 2 líneas */
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #001d3d;
    border-radius: 30px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #001d3d;
    box-shadow: 0 0 0 3px rgba(0, 89, 184, 0.1);
}

/* Selector/Select personalizado */
.form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #001d3d;
    border-radius: 30px;
    font-size: 1rem;
    font-family: Arial, Helvetica, sans-serif;
    background-color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    appearance: none; /* Elimina el estilo por defecto del navegador */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23333' d='M10.293 3.293L6 7.586 1.707 3.293A1 1 0 00.293 4.707l5 5a1 1 0 001.414 0l5-5a1 1 0 10-1.414-1.414z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
    padding-right: 40px; /* Espacio para la flecha */
}

.form-group select:focus {
    outline: none;
    border-color: #0059b8;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group select:hover {
    border-color: #0059b8;
}

/* Opciones del select */
.form-group select option {
    padding: 10px;
    font-size: 1rem;
}

.form-group select option:first-child {
    color: #001d3d;
}

/* Checkbox personalizados */
.checkbox-group {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
    gap: 10px;
    max-height: 400px;
    overflow-y: auto;
    padding-right: 5px;
    
}

/* Scrollbar */
.checkbox-group::-webkit-scrollbar {
    width: 2px;
}

.checkbox-group::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 1px;
}

.checkbox-group::-webkit-scrollbar-thumb {
    background: #0059b8;
    border-radius: 1px;
}

.checkbox-group::-webkit-scrollbar-thumb:hover {
    background: #001d3d;
}

/* Opciones de checkbox */
.checkbox-option {
    display: flex;
    align-items: flex-start;
    padding: 3%;
    border: 1px solid #001d3d;
    border-radius: 10px;
    transition: all 0.3s ease;
    position: relative;
    background: white;

}

.checkbox-option:hover {
    border-color: #0059b8;
    background: #f0f7ff;
    transform: translateY(-2px);
}

/* Ocultar checkbox real */
.checkbox-option input[type="checkbox"] {
    position: absolute;
    opacity: 0;
}

/* Checkbox personalizado */
.checkbox-custom {
    width: 18px;
    height: 18px;
    min-width: 18px;
    min-height: 18px;
    border: 2px solid #001d3d;
    border-radius: 4px;
    margin-right: 10px;
    flex-shrink: 0;
    transition: all 0.3s ease;
    margin-top: 2px;
    position: relative;
    display: inline-block;
    
}

/* Estado checked */
.checkbox-option input[type="checkbox"]:checked ~ .checkbox-custom {
    border-color: #0059b8;
    background: #0059b8;
}

/* Check del checkbox */
.checkbox-option input[type="checkbox"]:checked ~ .checkbox-custom::after {
    content: '✓';
    position: absolute;
    color: white;
    font-size: 14px;
    font-weight: bold;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

/* Texto */
.checkbox-text {
    flex: 1;
    line-height: 1.5;
    color: #001d3d;
    font-size: 14px;
    font-family: poppins;
}

.checkbox-option input[type="checkbox"]:checked ~ .checkbox-text {
    color: #0059b8;
    font-weight: 600;
}

/* Radio group */
.radio-group {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

/* Opciones de radio */
.radio-option {
    display: flex;
    align-items: center;
    padding: 12px;
    border: 1px solid #001d3d;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    background: white;
}

.radio-option:hover {
    border-color: #0059b8;
    background: #f0f7ff;
    transform: translateY(-2px);
}

/* Ocultar radio real */
.radio-option input[type="radio"] {
    position: absolute;
    opacity: 0;
}

/* Radio personalizado */
.radio-custom {
    width: 18px;
    height: 18px;
    min-width: 18px;
    min-height: 18px;
    border: 2px solid #001d3d;
    border-radius: 50%;
    margin-right: 10px;
    flex-shrink: 0;
    transition: all 0.3s ease;
    position: relative;
    display: inline-block;
}

/* Estado checked del radio */
.radio-option input[type="radio"]:checked ~ .radio-custom {
    border-color: #0059b8;
    background: #0059b8;
}

/* Punto interior del radio */
.radio-option input[type="radio"]:checked ~ .radio-custom::after {
    content: '';
    position: absolute;
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Texto del radio */
.radio-text {
    flex: 1;
    line-height: 1.5;
    color: #001d3d;
    font-size: 0.95rem;
    font-family: poppins;
}

.radio-option input[type="radio"]:checked ~ .radio-text {
    color: #0059b8;
    font-weight: 600;
}


button {
    padding-left: 5%;
    padding-right: 5%;
    padding-top: 2%;
    padding-bottom: 2%;
    background: #0059b8;
    color: white;
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: 10px;
    transition: all 0.3s ease;
}

button:hover {
    border: 1px solid #001d3d;
    background: #fff;
    color: #001D3D;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 89, 184, 0.2);
}

/* Columna de la imagen */
.imageColumn {
    height: 100%;
    animation: fadeInRight 0.8s ease-out;
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.imageColumn img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ==================== VALIDACIÓN DE FORMULARIOS ==================== */

/* Campo con error */
.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    border: 2px solid #dc3545 !important;
    background-color: #fff5f5 !important;
}

/* Mensaje de error */
.error-message {
    color: #dc3545;
    font-size: 13px;
    font-family: poppins, sans-serif;
    margin-top: 5px;
    display: none;
    animation: slideDown 0.3s ease;
}

.form-group.error .error-message {
    display: block;
}

/* Icono de error en label */
.form-group.error label::before {
    content: "⚠️ ";
}

/* Campo válido (verde) */
.form-group.valid input,
.form-group.valid select,
.form-group.valid textarea {
    border: 2px solid #28a745 !important;
    background-color: #f0fff4 !important;
}

/* Animación de deslizamiento */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Animación shake para campos con error */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    animation: shake 0.5s;
}

/* Alerta general de errores */
.form-alert {
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-left: 4px solid #ffc107;
    color: #856404;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
    display: none;
    font-family: poppins, sans-serif;
    font-size: 14px;
}

.form-alert.show {
    display: block;
    animation: slideDown 0.3s ease;
}

.form-alert strong {
    display: block;
    margin-bottom: 5px;
    font-size: 15px;
}

.form-alert ul {
    margin: 5px 0 0 20px;
    padding: 0;
}

.form-alert li {
    margin-bottom: 3px;
}

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

/* Tablets (máx 1024px) */
@media (max-width: 1024px) {
    .principal {
        grid-template-columns: 60% 40%;
    }
    
    .formColumn {
        padding-left: 10%;
        padding-right: 10%;
    }
    
    .progress-bar {
        gap: 30px;
    }
    
    .progress-bar::before {
        width: 320px;
    }
    
    .checkbox-group {
        grid-template-columns: 1fr 1fr 1fr;
    }
}

/* Tablets pequeñas y móviles grandes (máx 768px) */
@media (max-width: 768px) {
    .principal {
        grid-template-columns: 1fr;
    }
    
    .formColumn {
        padding: 8% 8% 10% 8%;
    }
    
    .formColumn h1 {
        font-size: 2rem;
    }
    
    .formColumn p {
        font-size: 16px;
    }
    
    .progress-bar {
        gap: 20px;
        grid-template-columns: 1fr 1fr 1fr;
    }
    
    .progress-bar::before {
        width: 250px;
    }
    
    .step-circle {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    .step-label {
        font-size: 0.75rem;
    }
    
    .contact-form {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .form-step {
        grid-template-columns: 1fr;
    }
    
    .form-group.half-width {
        grid-column: 1;
    }
    
    .checkbox-group {
        grid-template-columns: 1fr 1fr;
        max-height: 300px;
    }
    
    .form-navigation {
        flex-direction: column;
        gap: 10px;
    }
    
    .form-navigation button {
        width: 100%;
    }
    
    .imageColumn {
        height: 300px;
        order: -1; /* Mueve la imagen arriba en móviles */
    }
}

/* Móviles (máx 480px) */
@media (max-width: 480px) {
    .formColumn {
        padding: 6% 5% 8% 5%;
    }
    
    .formColumn h1 {
        font-size: 1.75rem;
        margin-bottom: 8px;
    }
    
    .formColumn p {
        font-size: 14px;
        margin-bottom: 30px;
    }
    
    .progress-bar {
        gap: 15px;
        margin-bottom: 30px;
    }
    
    .progress-bar::before {
        width: 180px;
    }
    
    .step-circle {
        width: 30px;
        height: 30px;
        font-size: 0.9rem;
    }
    
    .step-label {
        font-size: 0.65rem;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 10px 12px;
        font-size: 0.95rem;
    }
    
    .form-group label {
        font-size: 0.85rem;
        min-height: auto;
    }
    
    .checkbox-group {
        grid-template-columns: 1fr;
    }
    
    .checkbox-option,
    .radio-option {
        padding: 10px;
    }
    
    .checkbox-text,
    .radio-text {
        font-size: 13px;
    }
    
    button {
        font-size: 0.95rem;
        padding: 3% 6%;
    }
    
    .imageColumn {
        height: 250px;
    }
    
    .error-message {
        font-size: 12px;
    }
    
    .form-alert {
        font-size: 13px;
        padding: 12px;
    }
}

/* Móviles muy pequeños (máx 375px) */
@media (max-width: 375px) {
    .formColumn h1 {
        font-size: 1.5rem;
    }
    
    .progress-bar {
        gap: 10px;
    }
    
    .progress-bar::before {
        width: 150px;
    }
    
    .step-circle {
        width: 28px;
        height: 28px;
        font-size: 0.85rem;
    }
    
    .step-label {
        font-size: 0.6rem;
    }
}