/* METALÚRGICA SAN GINÉS - CSS OPTIMIZADO V362 */
/* Historial de versiones: ver CHANGELOG.md
   V362: --gear-speed CSS custom property, will-change solo en menu-open,
         prefers-reduced-motion fuerza engranajes 60s, touchstart mobile, SEO alt galería,
         V358: gear-rotator con animación base siempre activa,
         V355: gear-idle/spinning para engranajes siempre visibles,
         video-layer background-color oscuro, content-card 90% en móvil,
         autofill neon, form-privacy flex-wrap, prefers-reduced-motion.
*/

:root {
    /* Colores */
    --neon-primary: #00eaff;
    --neon-secondary: #fffdaf;
    --bg-dark: #02040a;
    --red-neon: #ff3232;
    --wa-green: #25D366;
    --fb-blue: #1877F2;
    --ig-pink: #E1306C;
    --mail-yellow: #B38F00;

    /* Transparencias unificadas para ver video de fondo */
    --bg-overlay-menu: rgba(2, 6, 15, 0.82);
    --bg-overlay-card: rgba(2, 6, 12, 0.88);
    --bg-overlay-scroll: rgba(2, 6, 12, 0.88);
    --bg-overlay-modal: rgba(0, 0, 0, 0.65);

    /* Espaciado */
    --espaciado-xs: 0.25rem;
    --espaciado-sm: 0.5rem;
    --espaciado-base: 1rem;
    --espaciado-md: 1.5rem;
    --espaciado-lg: 2rem;
    --espaciado-xl: 3rem;

    /* Z-index */
    --z-hero: 10;
    --z-footer: 50;
    --z-header: 100;
    --z-menu: 1500;
    --z-preloader: 20000;
    --z-trigger: 25000;
    --z-modal: 30000;
    --z-lightbox: 40000;
    --z-lock: 99999;

    /* Zoom */
    --zoom-level: 1;
    --card-font-size: 1.15rem;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

/* Scrollbar personalizada */
body, .card-scroll-area, .menu-scroll-container {
    scrollbar-width: thin;
    scrollbar-color: var(--neon-primary) transparent;
}

body::-webkit-scrollbar,
.card-scroll-area::-webkit-scrollbar,
.menu-scroll-container::-webkit-scrollbar {
    width: 6px;
}

body::-webkit-scrollbar-thumb,
.card-scroll-area::-webkit-scrollbar-thumb,
.menu-scroll-container::-webkit-scrollbar-thumb {
    background: var(--neon-primary);
    border-radius: 10px;
}

/* V337: color de selección de texto acorde a la marca — fondo neon cyan, texto negro */
::selection {
    background: var(--neon-primary);
    color: #000;
}
::-moz-selection {
    background: var(--neon-primary);
    color: #000;
}

/* V341: AUTO-DETECT text en el preloader — color neon para mejor contraste
   sobre el fondo oscuro del preloader. Antes heredaba color:white del
   .inline-timer que es suficiente pero menos distinguible como label. */
#auto-detect-text {
    color: var(--neon-primary);
    font-weight: bold;
    letter-spacing: 0.05em;
}

/* V341: Focus indicator visible para usuarios de teclado.
   :focus-visible no activa en clicks de mouse — solo con Tab/teclado.
   Cumple WCAG 2.1 criterio 2.4.7 (Focus Visible). */
.tech-btn:focus-visible,
.tool-btn:focus-visible,
.lang-btn:focus-visible,
.menu-lang-btn:focus-visible,
.modal-lang-btn:focus-visible {
    outline: 2px solid var(--neon-primary);
    outline-offset: 3px;
    box-shadow: 0 0 8px var(--neon-primary);
}

/* REGLA DE ORO — NO MODIFICAR:
   overflow: hidden es INTENCIONAL en esta SPA.
   La página NO hace scroll de body/html. Todo el scroll ocurre dentro de
   .card-scroll-area y .menu-scroll-container.
   Cambiar a overflow-x:hidden rompería el posicionamiento del modal (fixed-body trick)
   y generaría doble scrollbar en Safari/iOS.
   El bloqueo de scroll durante modales se maneja con body.fixed-body + JS. */
html, body {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background: transparent;
    font-family: 'Teko', system-ui, sans-serif;
    color: #ffffff;
    font-size: 16px;
}

body.section-active,
body.no-scroll {
    overflow: hidden;
}

body.fixed-body {
    position: fixed;
    width: 100%;
}

/* Utilidades */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

/* CLASE REUTILIZABLE FLEX-CENTER */
.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

#landscape-lock,
#lightbox {
    display: none;
}

/* PRELOADER */
body[aria-busy="true"] .menu-trigger {
    display: none;
}

/* Ocultar botón hamburguesa durante preloader — refuerzo extra */
body[aria-busy="true"] #btn-menu {
    display: none !important;
    pointer-events: none;
}

#preloader {
    position: fixed;
    inset: 0;
    background: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-preloader);
    transition: opacity 0.8s ease;
    text-align: center;
    color: white;
    will-change: opacity;
}

#preloader.loaded {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 500px;
    padding: var(--espaciado-lg);
}

.preloader-logo {
    width: 320px;
    max-width: 85%;
    margin-bottom: var(--espaciado-xl);
}

.inline-timer {
    display: flex;
    gap: var(--espaciado-sm);
    font-size: 1.4rem;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin-bottom: var(--espaciado-md);
    color: white;
}

.progress-bar-container {
    width: 140px;
    height: 3px;
    background: #222;
    border-radius: 4px;
    overflow: hidden;
    margin: 0 auto;
}

.progress-bar-fill {
    height: 100%;
    background: var(--neon-primary);
    width: 0;
    will-change: width;
    transition: width 1s linear;
}

.preloader-legal-notice {
    margin-top: var(--espaciado-xl);
    line-height: 1.6;
    font-size: 1rem;
    color: white;
    text-align: center;
    width: 100%;
}

/* ============================================================
   PRIVACY TRIGGER — BASE COMPARTIDA (consolidación de 3 en 1)
   Diferencias por contexto se sobreescriben abajo
   ============================================================ */
.privacy-trigger-preloader,
.privacy-trigger,
.form-privacy .privacy-trigger {
    background: none;
    border: none;
    color: var(--neon-primary);
    text-decoration: underline;
    cursor: pointer;
    font-family: 'Teko', system-ui, sans-serif;
    font-weight: bold;
    text-shadow: 0 0 8px var(--neon-primary);
    transition: color 0.3s ease, text-shadow 0.3s ease;
    padding: 0;
    margin: 0;
    display: inline;
}

.privacy-trigger-preloader:hover,
.privacy-trigger:hover,
.form-privacy .privacy-trigger:hover {
    color: var(--neon-secondary);
    text-shadow: 0 0 14px var(--neon-secondary);
}

/* Tamaño específico preloader */
.privacy-trigger-preloader {
    font-size: 1rem;
}

/* Tamaño específico footer */
.privacy-trigger {
    font-size: 0.85rem;
}

/* Tamaño específico formulario */
.form-privacy .privacy-trigger {
    font-size: 0.95rem;
}

/* LANG — ESCALA -15% */
.lang-container,
.menu-lang-selector,
.modal-lang-container {
    display: flex;
    flex-direction: row;
    gap: var(--espaciado-sm);
    justify-content: center;
    align-items: center;
    flex-wrap: nowrap;
    margin: var(--espaciado-sm) 0;
    transform: scale(0.85);
}

.lang-btn,
.menu-lang-btn,
.modal-lang-btn {
    background: rgba(255,255,255,0.05);
    border: 1px solid #333;
    border-radius: 4px;
    padding: var(--espaciado-xs);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
    font-family: 'Teko', system-ui, sans-serif;
    width: 55px;
    height: 44px;
    font-size: 0.85rem;
}

.lang-btn:hover,
.menu-lang-btn:hover,
.modal-lang-btn:hover {
    box-shadow: 0 0 15px var(--neon-primary);
    border-color: var(--neon-primary);
}

.lang-btn img,
.menu-lang-btn img,
.modal-lang-btn img {
    width: 26px;
    height: 16px;
    object-fit: cover;
}

/* VIDEO LAYER */
.video-layer {
    position: fixed;
    inset: 0;
    z-index: -5;
    width: 100%;
    height: 100%;
    overflow: hidden;
    /* V355: fondo oscuro para que la transición negro→video sea suave.
       Sin esto el browser usa su color por defecto (blanco/gris) al inicio. */
    background-color: #050505;
}

.bg-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 1.2s ease;
    position: absolute;
    top: 0;
    left: 0;
    will-change: opacity;
}

.bg-video.active {
    opacity: 1;
}

/* Overlay de video — transparencia unificada para ver videos */
.video-overlay {
    position: absolute;
    inset: 0;
    background: var(--bg-overlay-modal);
    width: 100%;
    height: 100%;
}

.main-header {
    position: fixed;
    top: 85px;
    width: 100%;
    display: flex;
    justify-content: center;
    z-index: var(--z-header);
    pointer-events: none;
}

.main-logo {
    width: 320px;
    max-width: 85%;
    height: auto;
    filter: drop-shadow(0 0 15px black);
}

.hero-overlay {
    position: fixed;
    inset: 0;
    z-index: var(--z-hero);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: opacity 0.4s ease;
}

.hero-title {
    color: #ffffff;
    font-size: clamp(2.3rem, 8vw, 5.5rem);
    line-height: 1;
    text-transform: uppercase;
    text-shadow: 0 0 20px black;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.8rem;
    color: var(--neon-primary);
    margin: var(--espaciado-lg) 0 var(--espaciado-xl);
    font-family: 'Roboto', sans-serif;
    text-shadow: 0 0 10px rgba(0, 234, 255, 0.5);
}

/* BOTON HERO */
.hero-cta {
    background: rgba(0, 234, 255, 0.05);
    border: 1px solid var(--neon-primary);
    color: white;
    padding: 0.94rem 2.5rem;
    font-size: 1.6rem;
    font-family: 'Teko', system-ui, sans-serif;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
    text-transform: uppercase;
    width: 20rem;
    max-width: 90vw;
}

.hero-cta:hover {
    background: var(--neon-primary);
    color: black;
    box-shadow: 0 0 25px var(--neon-primary);
}

/* MENU TRIGGER */
.menu-trigger {
    position: fixed;
    top: var(--espaciado-lg);
    left: var(--espaciado-lg);
    width: 52px;
    height: 52px;
    background: rgba(0,0,0,0.7);
    border: 1px solid var(--neon-primary);
    border-radius: 6px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 7px;
    cursor: pointer;
    z-index: var(--z-trigger);
    transition: box-shadow 0.3s ease;
    will-change: transform;
}

.menu-trigger:hover {
    box-shadow: 0 0 18px var(--neon-primary);
}

.bar {
    display: block;
    width: 30px;
    height: 3px;
    background: var(--neon-primary);
    transition: transform 0.4s ease, opacity 0.4s ease;
    border-radius: 2px;
    /* V334: will-change removido del estado idle — solo consume GPU cuando el
       menú está abierto (animación activa). Ver body.menu-open .bar abajo. */
}

body.menu-open .menu-trigger {
    border-color: var(--red-neon);
    box-shadow: 0 0 20px var(--red-neon);
}

body.menu-open .bar {
    background: var(--red-neon);
    box-shadow: 0 0 10px var(--red-neon);
    /* V334: will-change aquí — solo consume memoria GPU durante la animación
       del menú hamburguesa, no permanentemente */
    will-change: transform, opacity;
}

body.menu-open .bar-1 {
    transform: rotate(45deg) translate(7px, 7px);
}

body.menu-open .bar-2 {
    opacity: 0;
}

body.menu-open .bar-3 {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* SIDENAV — TRANSPARENCIA UNIFICADA PARA VER VIDEOS */
.menu-system {
    position: fixed;
    left: 0;
    top: 0;
    width: 320px;
    height: 100vh;
    background: var(--bg-overlay-menu);
    border-right: 1px solid var(--neon-primary);
    transform: translateX(-105%);
    transition: transform 0.4s ease;
    z-index: var(--z-menu);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    will-change: transform;
}

/* V328: fallback Firefox — cuando backdrop-filter no está soportado,
   el fondo se vuelve un poco más opaco para mantener la legibilidad.
   Firefox soporta @supports para detectar esto correctamente. */
@supports not (backdrop-filter: blur(1px)) {
    .menu-system {
        background: rgba(2, 6, 15, 0.94);
    }
}

body.menu-open .menu-system {
    transform: translateX(0);
}

.sidebar-labels {
    position: absolute;
    left: 0;
    top: 0;
    width: 60px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.info-content-wrapper {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--espaciado-lg);
    color: var(--neon-primary);
    font-size: 1.8rem;
    letter-spacing: 4px;
    text-shadow: 0 0 10px var(--neon-primary);
}

.menu-scroll-container {
    height: 100%;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.menu-items-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--espaciado-lg);
    align-items: center;
    padding-top: 100px;
    width: 100%;
}

.menu-item-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    border: none;
    background: none;
    width: 100%;
    outline: none;
}

.gear-btn-container {
    width: 72px;
    height: 72px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gear-rotator {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    /* V362: --gear-speed CSS custom property — JS cambia velocidad con setProperty()
       sin forzar layout reflow. Animación base siempre activa para funcionar
       aunque el menú esté oculto (translateX -105%).
       will-change movido a body.menu-open — solo activa GPU cuando está abierto. */
    --gear-speed: 30s;
    animation: girar var(--gear-speed) linear infinite;
}

/* will-change solo cuando el menú está abierto — ahorra GPU en reposo */
body.menu-open .gear-rotator {
    will-change: transform;
}

.svg-gear-img {
    width: 100%;
    height: 100%;
}

/* Giro idle suave — sobreescribe --gear-speed al cerrar el menú */
.gear-rotator.gear-idle {
    --gear-speed: 30s;
}

/* Al abrir el menú los engranajes aceleran */
.gear-rotator.spinning {
    --gear-speed: 8s;
}

/* Hover desktop: máxima velocidad — mobile usa touchstart en JS */
.menu-item-group:hover .gear-rotator {
    --gear-speed: 4s;
}

@keyframes girar {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.gear-icon-svg {
    width: 26px;
    height: 26px;
    color: white;
    fill: white;
    position: absolute;
    z-index: 2;
    pointer-events: none;
}

.gear-label {
    font-size: 1.2rem;
    color: #fff;
    text-transform: uppercase;
    margin-top: var(--espaciado-sm);
    letter-spacing: 2px;
}

.menu-footer-container {
    padding: var(--espaciado-xl) 0 110px;
    margin-top: auto;
}

/* MODAL — TRANSPARENCIA UNIFICADA PARA VER VIDEOS */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: var(--bg-overlay-modal);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    padding: var(--espaciado-lg);
    opacity: 0;
    transition: opacity 0.4s ease;
    will-change: opacity;
}

.modal-backdrop.active {
    display: flex;
    opacity: 1;
}

/* CONTENT CARD — TRANSPARENCIA UNIFICADA */
.content-card {
    background: var(--bg-overlay-card);
    border: 1px solid var(--neon-primary);
    width: 95%;
    max-width: 900px;
    height: 85vh;
    height: 85dvh;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: relative;
    will-change: transform;
}

/* V328: fallback Firefox para content-card — fondo más sólido cuando no hay blur */
@supports not (backdrop-filter: blur(1px)) {
    .content-card {
        background: rgba(2, 6, 12, 0.96);
    }
}

/* HEADER TOOLS */
.card-header-tools {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding: var(--espaciado-sm) var(--espaciado-md);
    flex-wrap: nowrap;
    overflow: hidden;
    background: var(--bg-overlay-card);
    /* V336: height:60px → min-height:60px + height:auto para que el header
       se expanda correctamente al 130% de zoom sin truncar botones ni texto */
    min-height: 60px;
    height: auto;
    flex-shrink: 0;
}

.text-size-controls {
    display: flex;
    flex-direction: row;
    gap: var(--espaciado-sm);
    transform: scale(0.85);
    flex-shrink: 0;
}

.tool-btn,
.card-close {
    height: 44px;
    min-width: 44px;
    background: rgba(255,255,255,0.05);
    border: 1px solid #444;
    border-radius: 4px;
    color: white;
    cursor: pointer;
    font-family: 'Teko', system-ui, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: box-shadow 0.3s ease, border-color 0.3s ease, color 0.3s ease;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.tool-btn:hover {
    box-shadow: 0 0 15px var(--neon-primary);
    border-color: var(--neon-primary);
    color: var(--neon-primary);
}

.card-close {
    color: var(--red-neon);
    border-color: var(--red-neon);
    flex-shrink: 0;
    transform: scale(0.85);
    margin-left: var(--espaciado-sm);
}

.card-close .x-text {
    font-size: 1.8rem;
    transform: scale(1.15);
    font-weight: bold;
}

.card-close:hover {
    background: var(--red-neon);
    color: black;
    box-shadow: 0 0 20px var(--red-neon);
}

/* Modal lang container */
.modal-lang-container {
    transform: scale(0.85);
    flex-shrink: 0;
    margin-right: auto;
}

/* CARD SCROLL AREA — TRANSPARENCIA UNIFICADA */
.card-scroll-area {
    flex-grow: 1;
    overflow-y: auto;
    padding: var(--espaciado-lg);
    font-size: var(--card-font-size);
    color: #ffffff;
    background: var(--bg-overlay-scroll);
}

.card-title {
    color: var(--neon-primary);
    font-family: 'Teko', system-ui, sans-serif;
    font-size: 2.8rem;
    text-transform: uppercase;
    margin-top: var(--espaciado-md);
    text-shadow: 0 0 10px rgba(0, 234, 255, 0.3);
}

/* BREADCRUMB NEON — ya tiene flex-wrap: wrap */
.breadcrumb {
    font-family: 'Roboto', sans-serif;
    font-size: 0.85rem;
    display: flex;
    gap: var(--espaciado-sm);
    margin-bottom: var(--espaciado-sm);
    color: rgba(255,255,255,0.5);
    align-items: center;
    flex-wrap: wrap;
}

.bc-btn {
    background: none;
    border: none;
    color: var(--neon-primary);
    cursor: pointer;
    text-decoration: underline;
    font-family: 'Roboto', sans-serif;
    font-size: inherit;
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

.bc-btn:hover {
    color: var(--neon-secondary);
    text-shadow: 0 0 5px var(--neon-primary);
}

.bc-cur {
    color: white;
    font-weight: 500;
}

.bc-sep {
    color: var(--neon-primary);
    text-shadow: 0 0 5px var(--neon-primary);
    font-weight: bold;
}

/* TEXTOS MODAL */
.about-text {
    color: #ffffff;
    font-family: 'Roboto', sans-serif;
    line-height: 1.7;
    text-align: justify;
    font-size: 1rem;
}

.about-text h3 {
    color: var(--mail-yellow);
    font-family: 'Teko', system-ui, sans-serif;
    font-size: 2.2rem;
    border-left: 4px solid var(--neon-primary);
    padding-left: var(--espaciado-md);
    margin-top: var(--espaciado-lg);
    margin-bottom: var(--espaciado-md);
    text-transform: uppercase;
    text-shadow: 0 0 5px rgba(179, 143, 0, 0.3);
}

.about-text p {
    margin-bottom: var(--espaciado-md);
    color: #ffffff;
}

.about-text small {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    display: block;
    margin-bottom: var(--espaciado-lg);
}

/* GRID GALERÍA */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--espaciado-lg);
    margin-top: var(--espaciado-xl);
    width: 100%;
}

.gallery-item {
    position: relative;
    aspect-ratio: 16/10;
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid #222;
    cursor: zoom-in;
    background: #111;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.6s ease;
    display: block;
    user-select: none;
    pointer-events: none;
}

.gallery-item img.loaded {
    opacity: 1;
}

.img-loader-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.8);
    z-index: 2;
    /* V327: evitar que el ícono de error SVG desborde en móviles pequeños */
    overflow: hidden;
    flex-shrink: 0;
}

/* V327: ícono de error en galería — tamaño controlado para no desbordarse */
.img-loader-overlay svg {
    max-width: 100%;
    max-height: 100%;
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.neon-ring {
    width: 40px;
    height: 40px;
    border: 3px solid transparent;
    border-top-color: var(--neon-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    will-change: transform;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.img-guard {
    position: absolute;
    inset: 0;
    z-index: 5;
    background: transparent;
}

/* SOCIAL Y BOTONES */
.tech-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--espaciado-md);
    justify-content: center;
    margin-top: var(--espaciado-xl);
}

.tech-btn {
    font-family: 'Teko', system-ui, sans-serif;
    cursor: pointer;
    border-radius: 4px;
    transition: box-shadow 0.3s ease, background 0.3s ease, color 0.3s ease;
    border: 1px solid var(--neon-primary);
    color: white;
    background: rgba(255,255,255,0.03);
    padding: 0.75rem 1.5rem;
    font-size: 1.4rem;
    min-width: 140px;
    text-transform: uppercase;
    /* Evitar desbordamiento en zoom */
    max-width: 100%;
    box-sizing: border-box;
    word-break: break-word;
}

.tech-btn:hover {
    box-shadow: 0 0 20px var(--neon-primary);
    background: var(--neon-primary);
    color: black;
}

.btn-wa:hover {
    border-color: var(--wa-green);
    background: var(--wa-green);
    color: black;
    box-shadow: 0 0 25px var(--wa-green);
}

.btn-fb:hover {
    border-color: var(--fb-blue);
    background: var(--fb-blue);
    color: white;
    box-shadow: 0 0 25px var(--fb-blue);
}

.btn-ig:hover {
    border-color: var(--ig-pink);
    background: var(--ig-pink);
    color: white;
    box-shadow: 0 0 25px var(--ig-pink);
}

.btn-mail:hover {
    border-color: var(--mail-yellow);
    background: var(--mail-yellow);
    color: black;
    box-shadow: 0 0 25px var(--mail-yellow);
}

.btn-call:hover {
    border-color: var(--red-neon);
    background: var(--red-neon);
    color: black;
    box-shadow: 0 0 25px var(--red-neon);
}

.industrial-box {
    background: rgba(255,255,255,0.05);
    padding: var(--espaciado-lg);
    border-radius: 8px;
    border: 1px solid var(--neon-primary);
    margin: var(--espaciado-lg) 0;
    text-align: left;
}

.industrial-box p {
    margin-bottom: var(--espaciado-sm);
    color: #ffffff;
}

/* FORM NEON */
.neon-form {
    display: flex;
    flex-direction: column;
    gap: var(--espaciado-lg);
    max-width: 500px;
    margin: var(--espaciado-xl) auto 0;
    text-align: left;
}

.form-group {
    position: relative;
    margin-bottom: var(--espaciado-xs);
}

.form-group input,
.form-group textarea {
    background: rgba(255,255,255,0.05);
    border: 1px solid #333;
    border-radius: 4px;
    padding: var(--espaciado-md);
    color: white;
    width: 100%;
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    font-family: 'Roboto', sans-serif;
    font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--neon-primary);
    box-shadow: 0 0 10px rgba(0, 234, 255, 0.3);
}

.form-group input.invalid,
.form-group textarea.invalid {
    border-color: var(--red-neon);
    box-shadow: 0 0 10px var(--red-neon);
}

.form-group label {
    position: absolute;
    left: var(--espaciado-md);
    top: var(--espaciado-md);
    color: rgba(255,255,255,0.4);
    pointer-events: none;
    transition: transform 0.3s ease, color 0.3s ease;
    font-family: 'Roboto', sans-serif;
    font-size: 0.95rem;
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
    transform: translateY(-38px) scale(0.85);
    color: var(--neon-primary);
    left: 0;
}

.form-group input:invalid:not(:placeholder-shown) {
    border-color: var(--red-neon);
    box-shadow: 0 0 10px var(--red-neon);
}

/* Mensajes de error */
.error-msg {
    color: var(--red-neon);
    font-size: 0.8rem;
    margin-top: var(--espaciado-xs);
    display: block;
    font-family: 'Roboto', sans-serif;
}

/* HONEYPOT — clase CSS unificada (reemplaza inline styles) */
.honeypot {
    position: absolute;
    left: -9999px;
    top: -9999px;
    opacity: 0;
    height: 0;
    width: 0;
    overflow: hidden;
    pointer-events: none;
    /* V329: tabindex: -1 eliminado — era propiedad CSS inválida.
       El tabindex="-1" correcto ya está en el atributo HTML del input. */
}

/* V344: CAPTCHA CANVAS — diseño neon coherente con la marca */
.captcha-container {
    display: flex;
    flex-direction: column;
    gap: var(--espaciado-sm);
    margin-top: var(--espaciado-md);
    background: rgba(255,255,255,0.03);
    padding: var(--espaciado-md);
    border-radius: 4px;
    border: 1px solid #333;
}

.captcha-display {
    display: flex;
    align-items: center;
    gap: var(--espaciado-sm);
}

#captcha-canvas {
    border-radius: 4px;
    background: #050505;
    border: 1px solid var(--neon-primary);
    flex-shrink: 0;
    display: block;
    /* V356: max-width para que el canvas no desborde en pantallas pequeñas */
    max-width: 155px;
    width: 155px;
}

.captcha-refresh {
    min-width: 40px;
    height: 40px;
    font-size: 1.1rem;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.captcha-container input[type="text"] {
    width: 100%;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-size: 1.1rem;
}

/* V356: captcha en móvil — canvas + botón refresh en fila, input debajo */
@media (max-width: 480px) {
    .captcha-display {
        flex-wrap: wrap;
        gap: var(--espaciado-xs);
    }
    #captcha-canvas {
        /* En pantallas muy pequeñas reducir un poco el canvas */
        width: 130px;
        max-width: 130px;
    }
    .captcha-container input[type="text"] {
        letter-spacing: 0.08em;
        font-size: 1rem;
    }
}


.form-privacy {
    display: flex;
    align-items: flex-start;
    gap: var(--espaciado-sm);
    margin: var(--espaciado-lg) 0;
}

.form-privacy input {
    margin-top: 3px;
    width: auto;
}

.form-privacy label {
    color: white;
    font-family: 'Roboto', sans-serif;
    font-size: 0.9rem;
    line-height: 1.4;
}

/* LIGHTBOX */
#lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.96);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: var(--z-lightbox);
    padding: var(--espaciado-xl);
    will-change: opacity;
}

.lb-wrapper {
    position: relative;
    border: 1px solid var(--neon-primary);
    background: #000;
    box-shadow: 0 0 40px var(--neon-primary);
    max-width: 90vw;
    max-height: 85vh;
}

#lb-img {
    display: block;
    opacity: 0;
    transition: opacity 0.5s ease;
    max-width: 90vw;
    max-height: 85vh;
    user-select: none;
    pointer-events: none;
    will-change: opacity;
}

#lb-img.loaded {
    opacity: 1;
}

.lb-close {
    position: absolute;
    top: 5px;
    right: 5px;
    color: var(--red-neon);
    background: rgba(0,0,0,0.6);
    border: 1px solid var(--red-neon);
    border-radius: 4px;
    cursor: pointer;
    z-index: 10;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease, color 0.3s ease;
    transform: scale(0.85);
}

.lb-close:hover {
    background: var(--red-neon);
    color: black;
}

/* SUCCESS OVERLAY */
.success-overlay {
    position: absolute;
    inset: 0;
    background: rgba(2, 4, 10, 0.98);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    text-align: center;
    will-change: opacity;
}

.success-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--espaciado-lg);
    width: 100%;
    max-width: 400px;
    padding: var(--espaciado-xl);
}

.success-icon {
    width: 80px;
    height: 80px;
    color: var(--neon-primary);
    filter: drop-shadow(0 0 15px var(--neon-primary));
}

.success-card h3 {
    color: #ffffff;
    font-family: 'Roboto', sans-serif;
    font-size: 1.2rem;
    line-height: 1.5;
}

/* TOASTS */
.toast-container {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100000;
    display: flex;
    flex-direction: column;
    gap: var(--espaciado-sm);
    pointer-events: none;
}

.toast {
    background: rgba(0,0,0,0.9);
    border: 1px solid var(--neon-primary);
    padding: var(--espaciado-sm) var(--espaciado-xl);
    border-radius: 4px;
    color: #fff;
    font-family: 'Roboto', sans-serif;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: auto;
    text-align: center;
    max-width: 90vw;
    will-change: transform, opacity;
}

.toast.active {
    opacity: 1;
    transform: translateY(0);
}

.toast-error {
    border-color: var(--red-neon);
    color: var(--red-neon);
}

/* FOOTER */
.main-footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    padding: var(--espaciado-md);
    color: rgba(255,255,255,0.6);
    font-size: 0.85rem;
    z-index: var(--z-footer);
    background: linear-gradient(to top, rgba(0,0,0,0.95), transparent);
    font-family: 'Roboto', sans-serif;
}

.footer-badges {
    display: flex;
    justify-content: center;
    gap: var(--espaciado-md);
    margin-bottom: var(--espaciado-sm);
    align-items: center;
}

.footer-badges img {
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-badges img:hover {
    opacity: 1;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .menu-system { width: 100%; }
    .main-logo { width: 220px; }
    .card-title { font-size: 2.2rem; }
    .hero-title { font-size: clamp(1.8rem, 7vw, 3rem); }
    .hero-subtitle { font-size: 1.4rem; }
    #preloader.loaded { pointer-events: none; }
    /* V362: engranajes en móvil más lentos via --gear-speed.
       gear-idle eliminado (redundante con base). Hover simplificado. */
    .gear-rotator { --gear-speed: 40s; }
    .gear-rotator.spinning { --gear-speed: 12s; }
    .menu-item-group:hover .gear-rotator { --gear-speed: 6s; }
    /* V356: ventanas al 99% — aprovecha el ancho completo en móvil */
    .content-card { width: 99%; }
    .card-header-tools {
        padding: var(--espaciado-xs) var(--espaciado-sm);
        min-height: 55px;
        /* V341: height:auto en lugar de height:55px — evita que el height fijo
           sobreescriba height:auto de la regla base (V336) cuando hay zoom o
           los botones necesitan más espacio vertical en pantallas pequeñas. */
        height: auto;
    }
    .modal-lang-container {
        transform: scale(0.75);
    }
    .tool-btn, .card-close {
        height: 40px;
        min-width: 40px;
    }
    /* Botones en ventanas no deben salir de la tarjeta en celulares */
    .tech-btn {
        min-width: 100px;
        font-size: 1.2rem;
        padding: 0.6rem 1rem;
    }
    .tech-grid {
        gap: var(--espaciado-sm);
    }
}

@media (max-width: 480px) {
    .content-card {
        width: 99%;
        height: 90vh;
        height: 90dvh;
    }
    .tech-btn {
        min-width: 100px;
        padding: var(--espaciado-sm) var(--espaciado-md);
        font-size: 1.1rem;
        flex: 1 1 auto;
        max-width: calc(50% - var(--espaciado-sm));
    }
    .about-text h3 {
        font-size: 1.8rem;
    }
    .card-header-tools {
        padding: var(--espaciado-xs);
        min-height: 50px;
        /* V341: height:auto — misma razón que el media query anterior */
        height: auto;
    }
    .modal-lang-container {
        transform: scale(0.7);
    }
    .text-size-controls {
        transform: scale(0.75);
    }
    .card-close {
        transform: scale(0.75);
    }
    .hero-cta {
        width: 90vw;
        padding: 0.75rem 1.5rem;
    }
    .neon-form {
        max-width: 100%;
    }
}

/* LANDSCAPE LOCK */
#landscape-lock {
    position: fixed;
    inset: 0;
    background: var(--bg-dark);
    z-index: var(--z-lock);
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--neon-primary);
    font-size: 1.5rem;
    text-align: center;
    padding: var(--espaciado-xl);
}

/* V333: max-width subido a 1024px — el Samsung Galaxy Tab A8 en landscape (800x600)
   caía en el rango anterior (max-width:900px) y era bloqueado innecesariamente.
   Con max-width:1024px solo se bloquean teléfonos y tablets pequeñas en landscape
   que tengan AMBAS condiciones: height ≤600px Y width ≤1024px */
@media (orientation: landscape) and (max-height: 600px) and (max-width: 1024px) {
    #landscape-lock {
        display: flex;
    }
    .video-layer,
    .main-header,
    .hero-overlay,
    .menu-trigger,
    .menu-system,
    .modal-backdrop,
    #lightbox,
    .main-footer {
        display: none !important;
    }
}

/* Optimización de rendimiento */
img {
    user-select: none;
    -webkit-user-drag: none;
}

video {
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

/* ============================================================
   V355: MEJORAS DE ACCESIBILIDAD Y UX
   ============================================================ */

/* Autofill — coherencia visual del autocompletado del browser */
.form-group input:-webkit-autofill,
.form-group input:-webkit-autofill:hover,
.form-group input:-webkit-autofill:focus,
.form-group input:-webkit-autofill:active {
    -webkit-text-fill-color: white !important;
    -webkit-box-shadow: 0 0 0px 1000px rgba(2, 6, 12, 0.95) inset !important;
    transition: background-color 5000s ease-in-out 0s;
    caret-color: white;
}

/* form-privacy — botón fuera del label (fat finger fix en móvil) */
.form-privacy {
    flex-wrap: wrap;
}

/* Gear-loader SVG para loaders de galería */
.gear-loader {
    width: 44px;
    height: 44px;
    animation: girar 2s linear infinite;
    filter: invert(1) sepia(1) saturate(4) hue-rotate(165deg) brightness(1.3);
    display: block;
    user-select: none;
    pointer-events: none;
}

/* prefers-reduced-motion — accesibilidad WCAG 2.3 */
@media (prefers-reduced-motion: reduce) {
    /* V362: gear-rotator excluido intencionalmente — los engranajes son decorativos.
       Se fuerza giro ultra-lento (60s) en lugar de detenerlos, para que funcionen
       en cualquier dispositivo/configuración: iOS, Windows con "Reducir animaciones",
       Chrome con prefers-reduced-motion:reduce. El resto sí respeta la preferencia. */
    .gear-loader {
        animation: none;
    }
    .neon-ring,
    .progress-bar-fill {
        animation: none;
        transition: none;
    }
    #preloader { transition: opacity 0.1s ease; }
    .menu-system { transition: transform 0.1s ease; }
    .modal-backdrop { transition: opacity 0.1s ease; }
    .bg-video { transition: opacity 0.1s ease; }
    .toast { transition: opacity 0.1s ease, transform 0.1s ease; }
    .bar { transition: transform 0.1s ease, opacity 0.1s ease; }
}

/* V362: forzar engranajes incluso con prefers-reduced-motion.
   60s = ultra-lento, imperceptible para sensibles al movimiento pero visible.
   !important necesario para ganar sobre la regla animation:none del bloque anterior. */
@media (prefers-reduced-motion: reduce) {
    .gear-rotator {
        --gear-speed: 60s;
        animation: girar var(--gear-speed) linear infinite !important;
    }
    .gear-rotator.spinning {
        --gear-speed: 20s;
    }
}