/**
 * ==========================================================================
 * ISIOTECH - ESTILOS GLOBALES Y DESIGN SYSTEM (global.css)
 * ==========================================================================
 */

/* ==========================================================================
 * 1. DESIGN SYSTEM: MODO OSCURO (Por defecto - "Deep Space")
 * ========================================================================== */
:root {
    --bg-cuerpo: #000957;
    --bg-header-solido: #000957;
    --bg-header-cristal: rgba(0, 9, 87, 0.90);
    --bg-footer: #00063d;
    --bg-dropdown: #000957;

    --color-texto-principal: #ffffff;
    --color-texto-secundario: #cccccc;
    --color-texto-muted: #888888;

    --color-verde-acento: #28CC43;
    --resplandor-verde: 0 4px 15px rgba(40, 204, 67, 0.4);

    --borde-sutil: rgba(255, 255, 255, 0.1);
    --borde-dropdown: rgba(255, 255, 255, 0.2);

    --filtro-iconos: none;
    --fuente-principal: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* ==========================================================================
 * 2. DESIGN SYSTEM: MODO CLARO ("Light Silver")
 * ========================================================================== */
[data-theme="light"] {
    --bg-cuerpo: #E6E9ED;
    --bg-header-solido: rgba(230, 233, 237, 0.65);
    --bg-header-cristal: rgba(230, 233, 237, 0.85);
    --bg-footer: rgba(230, 233, 237, 0.65);
    --bg-dropdown: rgba(240, 242, 245, 0.95);

    --color-texto-principal: #000957;
    --color-texto-secundario: #000957;
    --color-texto-muted: #000957;

    --resplandor-verde: 0 4px 10px rgba(40, 204, 67, 0.2);

    --borde-sutil: rgba(255, 255, 255, 0.8);
    --borde-dropdown: rgba(255, 255, 255, 0.9);

    --filtro-iconos: invert(100%) contrast(90%);
}

/* ==========================================================================
 * 3. CONFIGURACIÓN BASE Y HERRAMIENTAS DE ACCESIBILIDAD NATIVAS
 * ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* UTILIDADES ACCESIBILIDAD: Subrayar Enlaces */
body.a11y-underline a:not(.main-nav a, .btn-submit, .btn-return) {
    text-decoration: underline !important;
    text-underline-offset: 4px;
}

/* UTILIDADES ACCESIBILIDAD: Alto Contraste (Capa de Lente Segura No Destructiva) */
body.a11y-contrast::after {
    content: "";
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    pointer-events: none; /* Permite hacer clic en los botones a través del filtro */
    z-index: 9999999;     /* Se asegura de estar por encima de todo */
    backdrop-filter: contrast(1.25) saturate(1.2);
    -webkit-backdrop-filter: contrast(1.25) saturate(1.2);
}

.text-green { color: var(--color-verde-acento) !important; }
.text-blue { color: #000957 !important; }

body {
    background-color: var(--bg-cuerpo);
    color: var(--color-texto-principal);
    font-family: var(--fuente-principal);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.5s ease, color 0.5s ease;
}

a {
    text-decoration: none;
    color: var(--color-texto-principal);
    transition: all 0.3s ease;
}

li { list-style: none; }

.icon-small, .social-icon, .icon-lang {
    width: 24px;
    height: 24px;
    transition: transform 0.3s ease;
}

/* ==========================================================================
 * 4. ENCABEZADO PRINCIPAL (HEADER)
 * ========================================================================== */
.main-header {
    background-color: var(--bg-header-solido);
    height: 110px;
    padding: 0 40px;
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding-top: 32px !important;
    padding-bottom: 0px !important;
    transition: background-color 0.5s ease, backdrop-filter 0.4s ease, box-shadow 0.4s ease, border-bottom 0.4s ease;
    border-bottom: 1px solid transparent;
}

.main-header.scrolled {
    background-color: var(--bg-header-cristal);
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    max-height: 153px;
    width: auto;
    position: relative;
    top: 6px;
    transition: max-height 0.4s ease, top 0.4s ease, transform 0.3s ease;
}

.main-header.scrolled .logo {
    max-height: 75px;
    top: 0;
}

.main-nav ul {
    display: flex;
    gap: 15px;
}

.main-nav a {
    font-size: 16px;
    font-weight: 700;
    padding: 8px 22px;
    border-radius: 50px;
    background-color: transparent;
}

.main-nav a.active {
    background-color: var(--color-verde-acento);
    color: #ffffff !important;
    box-shadow: var(--resplandor-verde);
}

.main-nav ul:hover a.active,
.main-nav ul:focus-within a.active {
    background-color: transparent;
    color: var(--color-texto-principal) !important;
    box-shadow: none;
}

.main-nav a:hover,
.main-nav a:focus-visible {
    background-color: var(--color-verde-acento) !important;
    color: #ffffff !important;
    box-shadow: var(--resplandor-verde) !important;
    outline: none !important;
}

.main-nav a.active:hover,
.main-nav a.active:focus-visible {
    background-color: var(--color-verde-acento) !important;
    color: #ffffff !important;
    box-shadow: var(--resplandor-verde) !important;
}

.header-contact-social {
    display: flex;
    align-items: center;
    gap: 35px;
}

.phone-contact {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.phone-contact .icon-small {
    filter: var(--filtro-iconos);
    transition: filter 0.5s ease, transform 0.3s ease;
}

.phone-number {
    font-size: 14px;
    font-weight: bold;
}

.phone-contact:hover,
.phone-contact:focus-visible {
    transform: scale(1.15);
    outline: none !important;
}

.social-icons {
    display: flex;
    gap: 15px;
    align-items: center;
}

.social-icon:hover {
    transform: scale(1.45);
    cursor: pointer;
}

.social-icons a:focus-visible {
    outline: none !important;
}

.social-icons a:focus-visible .social-icon {
    transform: scale(1.45);
    background-color: rgba(40, 204, 67, 0.4);
    border-radius: 50%;
}

/* ==========================================================================
 * 5. BARRA SECUNDARIA VERDE (SUBHEADER)
 * ========================================================================== */
.subheader {
    background-color: var(--color-verde-acento) !important;
    padding: 6px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 132px;
}

.subheader p {
    font-weight: 800;
    font-size: 18px;
    letter-spacing: 1px;
    margin: 0;
    color: #ffffff !important;
}

/* ==========================================================================
 * 6. PIE DE PÁGINA (FOOTER)
 * ========================================================================== */
.main-footer {
    background-color: var(--bg-footer);
    padding: 60px 40px 20px 40px;
    border-top: 3px solid var(--color-verde-acento);
    transition: background-color 0.5s ease;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-col { flex: 1; min-width: 250px; }

.footer-col h3 {
    color: var(--color-verde-acento);
    margin-bottom: 20px;
    font-size: 20px;
    font-weight: 800;
}

.footer-col ul li a {
    color: var(--color-texto-principal);
    font-weight: bold;
}

.footer-col a:hover {
    color: var(--color-verde-acento);
    transform: translateX(5px);
}

.footer-contact-list, .footer-social-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-link, .footer-social-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-texto-principal);
    font-size: 14px;
    font-weight: bold;
}

.footer-link .icon-small,
.footer-social-item .icon-small {
    filter: var(--filtro-iconos);
    transition: filter 0.5s ease;
}

.footer-link:hover, .footer-social-item:hover {
    color: var(--color-verde-acento);
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--borde-sutil);
    font-size: 13px;
    color: var(--color-texto-muted);
    font-weight: 400;
}

.powered-by {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 5px;
}

.powered-logo { height: 35px; width: auto; }

/* ==========================================================================
 * 7. CONTROLES CENTRALES SUPERIORES (IDIOMA, TEMA Y ACCESIBILIDAD)
 * ========================================================================== */
.top-controls-absolute {
    position: absolute;
    top: 4px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
    display: flex;
    gap: 20px;
    align-items: center;
}

.language-selector, .theme-selector, .a11y-selector {
    position: relative;
    display: inline-block;
    margin: 0;
}

.lang-btn, .theme-btn, .a11y-btn {
    position: relative;
    background: none;
    border: none;
    cursor: pointer;
    padding: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.3s ease, transform 0.3s ease;
    color: var(--color-texto-principal);
}

.lang-btn:hover, .theme-btn:hover, .a11y-btn:hover,
.lang-btn:focus-visible, .theme-btn:focus-visible, .a11y-btn:focus-visible {
    background-color: var(--borde-sutil);
    outline: none !important;
}

.lang-btn .icon-small, .theme-btn .icon-small, .a11y-btn .icon-small {
    width: 32px !important;
    height: 32px !important;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.lang-btn:hover .icon-small, .theme-btn:hover .icon-small, .a11y-btn:hover .icon-small,
.lang-btn:focus-visible .icon-small, .theme-btn:focus-visible .icon-small, .a11y-btn:focus-visible .icon-small {
    transform: scale(1.15);
}

.lang-tooltip, .theme-tooltip, .a11y-tooltip {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-texto-principal);
    color: var(--bg-cuerpo);
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.75rem;
    font-weight: bold;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
    pointer-events: none;
    margin-top: 5px;
    z-index: 1002;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.lang-btn:hover .lang-tooltip, .theme-btn:hover .theme-tooltip, .a11y-btn:hover .a11y-tooltip,
.lang-btn:focus-visible .lang-tooltip, .theme-btn:focus-visible .theme-tooltip, .a11y-btn:focus-visible .a11y-tooltip {
    opacity: 1;
    visibility: visible;
}

.lang-dropdown, .theme-dropdown, .a11y-dropdown {
    position: absolute;
    top: 120%;
    left: 50%;
    transform: translate(-50%, -10px);
    background-color: var(--bg-dropdown);
    border: 1px solid var(--borde-dropdown);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    min-width: 140px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    overflow: hidden;
}

.lang-dropdown.show, .theme-dropdown.show, .a11y-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
}

.lang-option, .theme-option, .a11y-option {
    display: flex;
    align-items: center;
    padding: 10px 15px;
    color: var(--color-texto-principal);
    text-decoration: none;
    transition: background-color 0.3s ease;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
}

.lang-option:hover:not(.disabled), .theme-option:hover:not(.disabled), .a11y-option:hover:not(.no-hover),
.lang-option:focus-visible:not(.disabled), .theme-option:focus-visible:not(.disabled), .a11y-option:focus-visible:not(.no-hover) {
    background-color: rgba(40, 204, 67, 0.15);
    outline: none !important;
}

/* Modificadores específicos del Menú de Accesibilidad */
.a11y-option.active {
    background-color: rgba(40, 204, 67, 0.25);
    border-left: 4px solid var(--color-verde-acento);
}

.a11y-option.no-hover { cursor: default; justify-content: space-between; gap: 15px; }
.a11y-controls { display: flex; gap: 5px; }

.a11y-control-btn {
    background-color: var(--borde-sutil);
    color: var(--color-texto-principal);
    border: none;
    border-radius: 4px;
    width: 28px;
    height: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.a11y-control-btn:hover, .a11y-control-btn:focus-visible {
    background-color: var(--color-verde-acento);
    color: #fff;
    outline: none;
}

.icon-lang, .icon-theme-option { width: 20px; height: 20px; margin-right: 10px; object-fit: contain; }
.lang-option.disabled, .theme-option.disabled { opacity: 0.4; cursor: default; background-color: var(--borde-sutil); }

/* ==========================================================================
 * 8. TRANSICIONES GLOBALES
 * ========================================================================== */
body {
    transition: opacity 0.4s ease-in-out, background-color 0.5s ease, color 0.5s ease;
    opacity: 1;
}

body.fade-out { opacity: 0; }

/* ==========================================================================
 * 9. EFECTO CRISTAL (GLASSMORPHISM) EN MODO CLARO
 * ========================================================================== */
[data-theme="light"] .main-header,
[data-theme="light"] .main-footer {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

[data-theme="light"] .lang-dropdown,
[data-theme="light"] .theme-dropdown,
[data-theme="light"] .a11y-dropdown {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--borde-dropdown);
}

[data-theme="light"] .main-header.scrolled {
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--borde-sutil);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

/* ==========================================================================
 * 10. BOTÓN HAMBURGUESA (Oculto en Desktop)
 * ========================================================================== */
.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 22px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 2005;
}

.hamburger-btn:focus-visible {
    outline: 2px solid var(--color-verde-acento);
    outline-offset: 4px;
    border-radius: 4px;
}

.hamburger-line {
    width: 100%;
    height: 3px;
    background-color: var(--color-texto-principal);
    border-radius: 10px;
    transition: all 0.3s ease;
}

/* ==========================================================================
 * 11. PREVENCIÓN BÁSICA DE DESCARGAS E INTERACCIONES
 * ========================================================================== */

/* Evita que el usuario seleccione el texto o las imágenes como si fuera texto */
body {
    -webkit-user-select: none; /* Safari */
    -moz-user-select: none;    /* Firefox */
    -ms-user-select: none;     /* IE10+/Edge */
    user-select: none;         /* Estándar */
}

/* Excepción: Permitir seleccionar texto dentro de los formularios si los tienes */
input, textarea {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

img, video {
    /* Evita que las imágenes se puedan arrastrar al escritorio */
    -webkit-user-drag: none;

    /* Desactiva el menú emergente al mantener presionado en dispositivos táctiles (iOS/Android) */
    -webkit-touch-callout: none;
}

/* ==========================================================================
 * RESPONSIVE MÓVIL (768px)
 * ========================================================================== */
@media (max-width: 768px) {
    .main-header {
        height: 95px !important; /* REVERTIDO A 95px */
        padding: 0 15px !important;
        padding-top: 0 !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        width: 100% !important;
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 99999 !important;
        transform: translateZ(0) !important;
        -webkit-transform: translateZ(0) !important;
        will-change: transform !important;
    }

    .main-header.scrolled {
        background-color: var(--bg-header-solido) !important;
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        box-shadow: 0 5px 20px rgba(0,0,0,0.5) !important;
    }

    [data-theme="light"] .main-header.scrolled {
        background-color: #E6E9ED !important;
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        box-shadow: 0 5px 20px rgba(0,0,0,0.15) !important;
    }

    .header-container {
        justify-content: center;
        position: static;
        width: 100%;
    }

    .logo {
        max-height: 82px; /* MEJORA: Más grande que los 70px originales, pero cabe estable en 95px */
        top: 0;
        transition: max-height 0.3s ease;
    }

    .subheader { margin-top: 95px; } /* REVERTIDO A 95px PARA QUE ENCAJE PERFECTO */

    /* --- INICIO: MEJORA DE POSICIONAMIENTO DE ICONOS EN MÓVIL --- */
    .top-controls-absolute {
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        transform: none; /* Quitamos el centrado global de escritorio */
        gap: 0; 
        pointer-events: none; /* Permite que el usuario pueda hacer clic en el logo a través del contenedor vacío */
    }

    .theme-selector, .language-selector, .a11y-selector {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        pointer-events: auto; /* Reactiva los clics solo para los botones */
    }

    /* Posicionamiento exacto a la izquierda */
    .theme-selector { left: 15px; }
    .language-selector { left: 63px; }

    /* Posicionamiento de Accesibilidad a la derecha, separado de la hamburguesa */
    .a11y-selector { right: 75px; }

    /* Corrección de TODOS los dropdowns y Tooltips para evitar desbordes */
    
    /* TOOLTIPS: Evitamos que el texto de aviso se salga de la pantalla */
    .theme-selector .theme-tooltip {
        left: 0;
        transform: none; /* Elimina el centrado negativo que lo sacaba de la pantalla */
    }
    .language-selector .lang-tooltip {
        left: -20px;
        transform: none;
    }
    .a11y-selector .a11y-tooltip {
        left: auto;
        right: 0;
        transform: none;
    }
    
    /* MENÚS DESPLEGABLES */
    .a11y-dropdown {
        left: auto;
        right: -15px;
        transform: translateY(-10px) !important;
    }
    .a11y-dropdown.show {
        transform: translateY(0) !important;
    }
    
    .theme-dropdown, .lang-dropdown {
        left: -10px; 
        transform: translateY(-10px) !important;
    }
    .theme-dropdown.show, .lang-dropdown.show {
        transform: translateY(0) !important;
    }
    /* --- FIN: MEJORA DE POSICIONAMIENTO DE ICONOS EN MÓVIL --- */

    .lang-btn:hover .lang-tooltip,
    .theme-btn:hover .theme-tooltip,
    .a11y-btn:hover .a11y-tooltip,
    .lang-btn:focus .lang-tooltip,
    .theme-btn:focus .theme-tooltip,
    .a11y-btn:focus .a11y-tooltip {
        animation: hideTooltipMobile 1.2s forwards !important;
    }

    @keyframes hideTooltipMobile {
        0% { opacity: 0; visibility: hidden; }
        15% { opacity: 1; visibility: visible; }
        70% { opacity: 1; visibility: visible; }
        100% { opacity: 0; visibility: hidden; }
    }

    .hamburger-btn {
        display: flex;
        position: absolute;
        right: 15px;
        top: 50%;
        transform: translateY(-50%);
    }

    body.mobile-menu-open .hamburger-line:nth-child(1) { transform: translateY(9px) rotate(45deg); }
    body.mobile-menu-open .hamburger-line:nth-child(2) { opacity: 0; }
    body.mobile-menu-open .hamburger-line:nth-child(3) { transform: translateY(-10px) rotate(-45deg); }

    .main-nav {
        display: flex !important;
        position: fixed;
        top: 0; left: 0; width: 100vw;
        height: 100dvh;
        background-color: var(--bg-header-cristal);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 130px;
        z-index: 1999;
        opacity: 0;
        visibility: hidden;
        transition: all 0.4s ease;
    }

    [data-theme="light"] .main-nav {
        background-color: #E6E9ED;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }

    .main-nav ul { flex-direction: column; gap: 25px; text-align: center; }
    .main-nav a { font-size: 24px; }

    .header-contact-social {
        display: flex !important;
        position: fixed;
        top: 480px;
        left: 0; width: 100%;
        transform: none;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 25px;
        z-index: 2000;
        opacity: 0; visibility: hidden;
        transition: all 0.4s ease;
        padding: 0; margin: 0;
    }

    @media (max-height: 700px) {
        .main-nav { padding-top: 100px; }
        .main-nav ul { gap: 20px; }
        .header-contact-social { top: 410px; gap: 20px; }
    }

    .phone-contact { display: flex; justify-content: center; align-items: center; width: 100%; }
    .phone-number { font-size: 22px; font-weight: 800; margin-left: 10px; }
    .phone-contact .icon-small { width: 30px; height: 30px; }
    .social-icons { display: flex; justify-content: center; align-items: center; width: 100%; gap: 25px; }
    .social-icon { width: 38px; height: 38px; }

    body.mobile-menu-open .main-nav,
    body.mobile-menu-open .header-contact-social { opacity: 1; visibility: visible; }
    body.mobile-menu-open { overflow: hidden; overscroll-behavior: none; }

    .main-footer { background-color: var(--bg-footer) !important; }
    .footer-container { flex-direction: column; align-items: center; text-align: center; gap: 45px; }
    .footer-col { display: flex; flex-direction: column; align-items: center; width: 100%; }
    .footer-contact-list { align-items: center; }
    .footer-col ul { display: flex; flex-direction: column; align-items: center; padding: 0; }
    .footer-social-list { display: grid; grid-template-columns: max-content max-content; justify-content: center; gap: 15px 30px; }
    .footer-social-item { justify-content: flex-start; }
}