/* Estilos para el formulario de tratamiento de datos - Diseño Gamer */

/* Variables CSS */
:root {
    --primary-purple: #9333ea;
    --primary-blue: #4f46e5;
    --primary-indigo: #3b82f6;
    --neon-purple: rgba(147, 51, 234, 0.8);
    --glass-bg: rgba(0, 0, 0, 0.3);
    --text-purple: #c084fc;
}

/* Reset y configuración base */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Rajdhani', sans-serif;
    overflow-x: hidden;
}

/* Contenedores de pantalla */
.screen-container {
    min-height: 100vh;
    background: linear-gradient(135deg, 
        rgba(147, 51, 234, 0.8) 0%, 
        rgba(79, 70, 229, 0.8) 25%, 
        rgba(59, 130, 246, 0.8) 50%, 
        rgba(147, 51, 234, 0.8) 75%, 
        rgba(168, 85, 247, 0.8) 100%);
    position: relative;
}

/* Efectos de partículas de fondo */
.particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--neon-purple);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.particle:nth-child(1) { top: 20%; left: 20%; animation-delay: 0s; }
.particle:nth-child(2) { top: 80%; left: 80%; animation-delay: 1s; }
.particle:nth-child(3) { top: 40%; left: 60%; animation-delay: 2s; }
.particle:nth-child(4) { top: 60%; left: 40%; animation-delay: 3s; }
.particle:nth-child(5) { top: 10%; left: 90%; animation-delay: 4s; }

/* Animaciones */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px var(--neon-purple), 0 0 10px var(--neon-purple), 0 0 15px var(--neon-purple);
    }
    50% {
        box-shadow: 0 0 10px var(--neon-purple), 0 0 20px var(--neon-purple), 0 0 30px var(--neon-purple);
    }
}

@keyframes pulse-border {
    0%, 100% { border-color: rgba(147, 51, 234, 0.3); }
    50% { border-color: rgba(147, 51, 234, 0.8); }
}

@keyframes slideInFromTop {
    0% {
        opacity: 0;
        transform: translateY(-50px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInFromBottom {
    0% {
        opacity: 0;
        transform: translateY(50px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Clases de animación */
.animate-glow {
    animation: glow 2s ease-in-out infinite;
}

.animate-pulse-border {
    animation: pulse-border 2s ease-in-out infinite;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

.animate-slide-in-top {
    animation: slideInFromTop 0.6s ease-out;
}

.animate-slide-in-bottom {
    animation: slideInFromBottom 0.6s ease-out;
}

/* Tipografía gamer */
.gamer-title {
    font-family: 'Orbitron', monospace;
    font-weight: 900;
    color: white;
}

/* Texto para modal de éxito */
.success-modal-text {
    color: #c084fc; /* tono púrpura neón */
}

.gamer-text {
    font-family: 'Rajdhani', sans-serif;
    font-weight: 500;
}

.neon-text {
    text-shadow: 
        0 0 5px var(--neon-purple),
        0 0 10px var(--neon-purple),
        0 0 15px var(--neon-purple);
}

.text-purple {
    color: var(--text-purple);
}

/* Efectos de cristal */
.glass-effect {
    backdrop-filter: blur(10px);
    background: var(--glass-bg);
    border: 1px solid rgba(147, 51, 234, 0.2);
}

/* Bordes neón */
.neon-border {
    border: 2px solid rgba(147, 51, 234, 0.6) !important;
    box-shadow: 
        0 0 5px rgba(147, 51, 234, 0.4),
        inset 0 0 5px rgba(147, 51, 234, 0.2);
}

/* Cards gamer */
.gamer-card {
    background: rgba(0, 0, 0, 0.8) !important;
    border: 2px solid rgba(147, 51, 234, 0.3) !important;
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 10;
}

.gamer-card .card-header {
    background: rgba(147, 51, 234, 0.2) !important;
    border-bottom: 1px solid rgba(147, 51, 234, 0.3) !important;
}

/* Inputs gamer */
.gamer-input {
    background: rgba(0, 0, 0, 0.5) !important;
    border: 1px solid rgba(147, 51, 234, 0.3) !important;
    color: white !important;
    transition: all 0.3s ease;
}

.gamer-input:focus {
    background: rgba(0, 0, 0, 0.7) !important;
    border-color: rgba(147, 51, 234, 0.8) !important;
    box-shadow: 0 0 0 3px rgba(147, 51, 234, 0.3) !important;
    color: white !important;
}

.gamer-input::placeholder {
    color: rgba(255, 255, 255, 0.5) !important;
}

.gamer-input option {
    background: rgba(0, 0, 0, 0.9) !important;
    color: white !important;
}

/* Botones gamer */
.gamer-button {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    font-family: 'Rajdhani', sans-serif;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

optgroup {
    font-weight: bold;
    color: #9333ea; /* color púrpura para resaltar */
    background-color: rgba(147, 51, 234, 0.1);
    padding-left: 8px;
    border-radius: 4px;
}

.gamer-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.gamer-button:hover::before {
    left: 100%;
}

.gamer-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* Modales gamer */
.gamer-modal .modal-content {
    background: rgba(0, 0, 0, 0.9) !important;
    border: 2px solid rgba(147, 51, 234, 0.5) !important;
    backdrop-filter: blur(10px);
}

.gamer-modal .modal-header {
    border-bottom: 1px solid rgba(147, 51, 234, 0.3) !important;
}

.gamer-modal .modal-footer {
    border-top: 1px solid rgba(147, 51, 234, 0.3) !important;
}

/* Caja de consentimiento */
.consent-box {
    border-radius: 15px;
    margin: 20px 0;
}

/* Imágenes de encabezado */
.header-image img,
.form-header-image img {
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.form-header-image {
    height: 300px;
    overflow: hidden;
}

.form-header-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Tarjetas de resumen */
.summary-card {
    background: rgba(147, 51, 234, 0.1) !important;
    border: 1px solid rgba(147, 51, 234, 0.3) !important;
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
    backdrop-filter: blur(5px);
}

.summary-card h5 {
    color: var(--text-purple);
    font-family: 'Rajdhani', sans-serif;
    font-weight: 600;
    margin-bottom: 15px;
}

.summary-card p {
    color: white;
    margin-bottom: 8px;
    font-family: 'Rajdhani', sans-serif;
}

.summary-card .text-purple {
    color: var(--text-purple);
    font-weight: 600;
}

/* Efectos hover para elementos interactivos */
.gamer-input:hover {
    border-color: rgba(147, 51, 234, 0.6) !important;
}

.form-label {
    font-weight: 600;
    margin-bottom: 8px;
}

/* Scrollbar personalizado */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.3);
}

::-webkit-scrollbar-thumb {
    background: rgba(147, 51, 234, 0.6);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(147, 51, 234, 0.8);
}

/* Responsive */
@media (max-width: 1024px) {
    .form-header-image {
        height: 40vh;
    }
    .registration-form {
        padding: 1.5rem;
        margin: 1rem 0;
    }
    .form-buttons {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    .btn-submit, .btn-cancel {
        width: 100%;
        font-size: 1.1rem;
        padding: 1rem 0;
        border-radius: 12px;
    }
}

@media (max-width: 768px) {
    .gamer-title {
        font-size: 1.6rem !important;
    }
    
    .animate-float {
        animation: none;
    }
    
    .particle {
        display: none;
    }
    
    .form-header-image {
        height: 30vh;
    }
    
    .gamer-button {
        font-size: 0.9rem;
        padding: 10px 20px;
    }
}

@media (max-width: 576px) {
    .gamer-title {
        font-size: 1.4rem !important;
    }
    
    .consent-box {
        padding: 10px !important;
    }
    
    .consent-buttons {
        gap: 1rem;
    }
    
    .btn-accept, .btn-reject {
        font-size: 1.1rem;
        padding: 1rem 0;
        min-width: 120px;
    }
    
    .form-label {
        font-size: 0.9rem;
    }
    
    .form-control, .form-select {
        font-size: 0.9rem;
        padding: 0.5rem;
    }
}

/* Estados de validación */
.is-invalid.gamer-input {
    border-color: #dc3545 !important;
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.3) !important;
}

.is-valid.gamer-input {
    border-color: #198754 !important;
    box-shadow: 0 0 0 3px rgba(25, 135, 84, 0.3) !important;
}

/* Efectos adicionales */
.gamer-card:hover {
    transform: translateY(-5px);
    transition: transform 0.3s ease;
}

.summary-card:hover {
    background: rgba(147, 51, 234, 0.2) !important;
    transition: background 0.3s ease;
}

/* Overlay para modales */
.modal-backdrop {
    background-color: rgba(0, 0, 0, 0.8) !important;
}

/* Efectos de carga */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

/* Animación de entrada para elementos */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

/* Estilos específicos para mantener compatibilidad con el HTML existente */

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(147, 51, 234, 0.9) 0%, 
        rgba(79, 70, 229, 0.9) 25%, 
        rgba(59, 130, 246, 0.9) 50%, 
        rgba(147, 51, 234, 0.9) 75%, 
        rgba(168, 85, 247, 0.9) 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    animation: fadeIn 0.5s ease-out;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

/* Modal de Consentimiento */
.consent-container {
    background: rgba(0, 0, 0, 0.9);
    border: 2px solid rgba(147, 51, 234, 0.6);
    border-radius: 20px;
    padding: 2rem;
    max-width: 800px;
    width: 90%;
    text-align: center;
    box-shadow: 0 0 30px rgba(147, 51, 234, 0.4);
    animation: slideInFromTop 0.6s ease-out;
    backdrop-filter: blur(10px);
    display: block;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    max-height: 90vh;
    overflow-y: auto;
}

.consent-header .header-image {
    width: 100%;
    height: auto;
    max-height: none;
    object-fit: contain;
    border-radius: 15px;
    margin-bottom: 2rem;
    border: 2px solid rgba(147, 51, 234, 0.6);
}

@media (max-width: 576px) {
    .consent-header .header-image {
        max-height: 300px;
    }
}

.consent-title {
    font-family: 'Orbitron', monospace;
    font-size: 2.5rem;
    font-weight: 900;
    color: white;
    text-shadow: 0 0 20px var(--neon-purple);
    margin-bottom: 1.5rem;
    animation: glow 2s infinite;
}

.consent-text p {
    font-size: 1.2rem;
    line-height: 1.6;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

.law-text {
    font-weight: 700;
    color: var(--text-purple) !important;
    text-shadow: 0 0 10px var(--neon-purple);
}

.accept-text {
    font-weight: 700;
    color: white !important;
    font-size: 1.4rem !important;
    text-shadow: 0 0 10px var(--neon-purple);
}

.consent-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
    width: 100%;
}

.btn-accept, .btn-reject {
    padding: 1rem 2rem;
    font-size: 1.2rem;
    font-weight: 700;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Orbitron', monospace;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    flex: 1 1 45%;
    min-width: 140px;
    text-align: center;
}

.btn-accept {
    background: linear-gradient(45deg, var(--primary-purple), var(--primary-blue));
    color: white;
    box-shadow: 0 4px 15px rgba(147, 51, 234, 0.4);
    white-space: nowrap;
}

.btn-accept:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(147, 51, 234, 0.6);
    animation: glow 0.6s infinite;
}

.btn-reject {
    background: linear-gradient(45deg, #dc3545, #c82333);
    color: white;
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.4);
    white-space: nowrap;
}

.btn-reject:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(220, 53, 69, 0.6);
}

/* Formulario Principal */
.main-form-container {
    min-height: 100vh;
    background: linear-gradient(135deg, 
        rgba(147, 51, 234, 0.8) 0%, 
        rgba(79, 70, 229, 0.8) 25%, 
        rgba(59, 130, 246, 0.8) 50%, 
        rgba(147, 51, 234, 0.8) 75%, 
        rgba(168, 85, 247, 0.8) 100%);
    animation: fadeIn 0.8s ease-out;
}

.form-header {
    width: 100%;
    height: 60vh;
    overflow: hidden;
    position: relative;
}

.form-header-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-bottom: 3px solid rgba(147, 51, 234, 0.8);
    box-shadow: 0 5px 20px rgba(147, 51, 234, 0.3);
}

.container {
    padding: 2rem 0;
}

.registration-form {
    background: rgba(0, 0, 0, 0.9);
    border: 2px solid rgba(147, 51, 234, 0.3);
    border-radius: 20px;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    animation: slideInFromBottom 0.8s ease-out;
    backdrop-filter: blur(10px);
}

/* Estilos de formulario */
.form-label {
    color: var(--text-purple);
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 5px rgba(147, 51, 234, 0.3);
}

.form-control, .form-select {
    background: rgba(0, 0, 0, 0.5) !important;
    border: 1px solid rgba(147, 51, 234, 0.3) !important;
    border-radius: 10px;
    color: white !important;
    padding: 0.75rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    background: rgba(0, 0, 0, 0.7) !important;
    border-color: rgba(147, 51, 234, 0.8) !important;
    box-shadow: 0 0 15px rgba(147, 51, 234, 0.4) !important;
    color: white !important;
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.5) !important;
    opacity: 0.7;
}

.form-select option {
    background: rgba(0, 0, 0, 0.9) !important;
    color: white !important;
}

/* Botones del formulario */
.form-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
    margin-top: 2rem;
}

.btn-submit, .btn-cancel {
    padding: 1rem 2.5rem;
    font-size: 1.2rem;
    font-weight: 700;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Orbitron', monospace;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
}

.btn-submit {
    background: linear-gradient(45deg, var(--primary-purple), var(--primary-blue));
    color: white;
    box-shadow: 0 4px 15px rgba(147, 51, 234, 0.4);
}

.btn-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(147, 51, 234, 0.6);
    animation: glow 0.6s infinite;
}

.btn-cancel {
    background: linear-gradient(45deg, #f59e0b, #d97706);
    color: white;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
}

.btn-cancel:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.6);
}

/* Modal de Resumen */
.summary-container {
    background: rgba(0, 0, 0, 0.9);
    border: 2px solid rgba(147, 51, 234, 0.6);
    border-radius: 20px;
    padding: 2rem;
    max-width: 900px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 0 30px rgba(147, 51, 234, 0.4);
    animation: slideInFromTop 0.6s ease-out;
    backdrop-filter: blur(10px);
}

.summary-header h2 {
    font-family: 'Orbitron', monospace;
    font-size: 2rem;
    color: white;
    text-align: center;
    margin-bottom: 1.5rem;
    text-shadow: 0 0 20px var(--neon-purple);
}

.summary-content {
    background: rgba(147, 51, 234, 0.1);
    border-radius: 15px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    border: 1px solid rgba(147, 51, 234, 0.3);
    backdrop-filter: blur(5px);
}

.summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(147, 51, 234, 0.3);
}

.summary-item:last-child {
    border-bottom: none;
}

.summary-label {
    font-weight: 600;
    color: var(--text-purple);
    flex: 1;
}

.summary-value {
    color: white;
    flex: 2;
    text-align: right;
}

.summary-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

@media (max-width: 576px) {
    .summary-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    .btn-confirm, .btn-correct {
        width: 100%;
        font-size: 1.1rem;
        padding: 1rem 0;
        border-radius: 12px;
    }
}

.btn-confirm, .btn-correct {
    padding: 1rem 2rem;
    font-size: 1.2rem;
    font-weight: 700;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Orbitron', monospace;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-confirm {
    background: linear-gradient(45deg, #10b981, #059669);
    color: white;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}

.btn-confirm:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.6);
}

.btn-correct {
    background: linear-gradient(45deg, var(--primary-purple), #ec4899);
    color: white;
    box-shadow: 0 4px 15px rgba(147, 51, 234, 0.4);
}

.btn-correct:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(147, 51, 234, 0.6);
}

/* Modal de Cancelación */
.cancel-container {
    background: rgba(0, 0, 0, 0.9);
    border: 2px solid #f59e0b;
    border-radius: 20px;
    padding: 2rem;
    max-width: 600px;
    width: 90%;
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.3);
    animation: slideInFromTop 0.6s ease-out;
    backdrop-filter: blur(10px);
}

.cancel-header h2 {
    font-family: 'Orbitron', monospace;
    font-size: 1.8rem;
    color: #f59e0b;
    text-align: center;
    margin-bottom: 1.5rem;
    text-shadow: 0 0 10px #f59e0b;
}

.cancel-content textarea {
    background: rgba(0, 0, 0, 0.5) !important;
    border: 1px solid rgba(147, 51, 234, 0.3) !important;
    border-radius: 10px;
    color: white !important;
    width: 100%;
    resize: vertical;
    min-height: 120px;
}

.cancel-content textarea:focus {
    border-color: #f59e0b !important;
    box-shadow: 0 0 15px rgba(245, 158, 11, 0.4) !important;
}

.cancel-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.btn-submit-cancel, .btn-close-cancel {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Rajdhani', sans-serif;
    text-transform: uppercase;
}

.btn-submit-cancel {
    background: linear-gradient(45deg, #f59e0b, #d97706);
    color: white;
}

.btn-close-cancel {
    background: linear-gradient(45deg, #6b7280, #4b5563);
    color: white;
}

/* Modal de Error */
.error-container {
    background: rgba(0, 0, 0, 0.9);
    border: 2px solid #dc3545;
    border-radius: 20px;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    text-align: center;
    box-shadow: 0 0 20px rgba(220, 53, 69, 0.3);
    animation: slideInFromTop 0.6s ease-out;
    backdrop-filter: blur(10px);
}

.error-header h2 {
    font-family: 'Orbitron', monospace;
    font-size: 1.5rem;
    color: #dc3545;
    margin-bottom: 1rem;
    text-shadow: 0 0 10px #dc3545;
}

.error-content p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.btn-close-error {
    padding: 0.75rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Orbitron', monospace;
    text-transform: uppercase;
    background: linear-gradient(45deg, #dc3545, #c82333);
    color: white;
}

.btn-close-error:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(220, 53, 69, 0.4);
}

/* Efectos adicionales para botones */
.btn-accept::before, .btn-submit::before, .btn-confirm::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-accept:hover::before, .btn-submit:hover::before, .btn-confirm:hover::before {
    left: 100%;
}
.video-container {
      width: 100%;
      max-width: 100vw; /* evita overflow horizontal */
      height: auto;
      overflow: hidden;
      background: black; /* por si el video tiene espacios */
    }

    /* Video ocupa 100% ancho y altura automática */
    .video-container video {
      width: 100%;
      height: auto;
      display: block;
      object-fit: contain; /* mantiene la proporción sin recortar */
      background: black;
    }