/* Estándar ISO El Nexo - Sistemas Operativos */

/* Nota: Las variables base vienen de estilos-generales.css */
:root {
    /* Mapeo local de identidad (Plata/Gris) */
    --color-tema: #4A4A4A; 
    
    /* Variables Locales Específicas */
    --iso-plomo: #666666;
    --iso-slide-text: #ffffff;
    
    /* Herencia del General */
    --fondo-body: var(--fondo-body);
    --texto-negro: var(--texto-negro);
    --color-texto-gris: var(--texto-gris);
    --gris-fondo-btn: var(--gris-fondo-boton);
    --gris-borde-h1: #e0e0e0; 
}

html,
body {
    margin: 0 !important;
    padding: 0 !important;
    width: 100% !important;
    overflow-x: hidden;
}

body {
    background-color: var(--fondo-body);
    color: var(--texto-negro);
    font-family: 'Montserrat', Arial, sans-serif;
    text-align: center;
    transition: background-color 0.3s ease, color 0.3s ease;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main { 
    flex: 1; 
}

/* Header */
header {
    text-align: center;
    width: 100%;
    margin-top: 5rem;
    border: none !important;
    box-shadow: none !important;
}

h1 {
    font-family: 'Montserrat', sans-serif !important;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -1px;
    margin: 2rem auto; 
    font-size: clamp(2.5rem, 6vw, 4.375rem);
    color: var(--color-tema);
    border-bottom: 2px solid var(--gris-borde-h1);
    width: 60vw;
    display: inline-block;
    padding-bottom: 2vh;
    max-width: 90%;
    text-align: center;
}

.header-desc {
    font-size: 1.1rem;
    color: var(--color-texto-gris);
    margin-bottom: 2rem;
}

/* Grid Principal (Original Restaurado) */
.iso-container {
    display: flex;
    flex-wrap: wrap; 
    justify-content: center;
    gap: 4.5rem 2.5rem; /* Aumentado para evitar solapamiento del slide-link */
    width: 100%;
    max-width: 1100px;
    margin: 0 auto 5rem auto; 
    padding: 0 20px;
}

/* Tarjetas Deslizantes (Estructura Original) */
.card-container {
    position: relative;
    width: 220px;
    height: 180px;
    margin-bottom: 40px; /* Aumentado para mayor holgura entre filas */
    /* No tiene background, es el contenedor invisible */
}

/* La Tarjeta Visible */
.main-card {
    position: relative;
    z-index: 10;       
    background-color: var(--fondo-card, #ffffff); 
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border: 2px solid var(--borde-card, #c1c1c1);
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-sizing: border-box;
    color: var(--texto-negro);
    box-shadow: var(--sombra-industrial);
}

.iso-img {
    width: 64px;
    height: 64px;
    object-fit: contain;
    margin-bottom: 10px;
    /* En modo claro se ve original */
}

.iso-title {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    color: var(--texto-negro);
    font-size: 1.1rem;
    text-align: center;
}

/* El Enlace que se desliza por debajo */
.slide-link {
    position: absolute; 
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50px; 
    background-color: var(--iso-plomo); 
    color: var(--iso-slide-text);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 12px; 
    z-index: 5;   
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    transform: translateY(0); 
    box-shadow: inset 0 0 10px rgba(0,0,0,0.2);
}

/* Interacción Hover (La magia original) */
.card-container:hover .slide-link {
    transform: translateY(55px); /* Baja */
    z-index: 2;
    box-shadow: 0 5px 10px rgba(0,0,0,0.2);
}

.card-container:hover .main-card {
    transform: translateY(-5px); /* Sube */
    border-color: var(--color-tema); 
    background-color: var(--fondo-card-hover, #fcfcfc);
    box-shadow: 6px 6px 0px var(--color-tema); /* Sombra Sólida */
}

.slide-link:hover {
    background-color: #000; /* Se oscurece al tocarlo */
    color: #fff;
}

/* Menú Lateral Derecho */
.right-nav-container {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 200px;
    padding: 25px 20px;
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 10000;
    background: var(--fondo-navegacion, #ffffff);
    border: 2px solid var(--borde-navegacion, #e0e0e0);
}

.right-nav-container h2 {
    font-size: 1.1rem;
    margin: 0 0 15px 0;
    text-align: center;
    font-weight: 800;
    color: var(--texto-negro);
}

.right-nav-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Botones del Menú Lateral */
.boton-nexo-universal {
    display: block;
    padding: 12px;
    text-decoration: none;
    text-align: center;
    border-radius: 10px;
    font-weight: 700;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    color: var(--texto-boton-nav, #333);
    border: 2px solid var(--borde-boton-nav, #ddd);
    background: var(--fondo-boton-nav, #fff);
}

.boton-nexo-universal:hover {
    background: var(--color-tema); 
    color: #fff; 
    border-color: #000;
    transform: translateX(-5px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

/* Aviso Legal */
.aviso-legal-contexto {
    background: var(--fondo-card); 
    border-left: 6px solid #ffcc00; 
    padding: 15px; 
    width: 100%;
    max-width: 80vw;
    margin: 20px auto; 
    font-size: 0.9em;
    text-align: left;
    border-radius: 0 8px 8px 0;
    color: var(--texto-negro);
    box-shadow: var(--sombra-industrial);
}

/* AdSense Fix */
.adsbygoogle .google-auto-placed {
    display: none !important;
}

/* Modo Oscuro: Sistemas (Silver Industrial) */
body.dark-mode {
    --color-tema: #e0e0e0; /* Plata Brillante */
    
    /* Ajustes Específicos */
    --iso-plomo: #333333;       /* Enlace deslizante oscuro */
    --iso-slide-text: #e0e0e0;  /* Texto del enlace */
    
    --fondo-card-hover: #1a1a1a;
}

/* 1. Header */
body.dark-mode h1 {
    color: var(--color-tema);
    border-bottom-color: #444;
}

body.dark-mode .header-desc {
    color: #aaa;
}

/* 2. Tarjetas (Main Card) */
body.dark-mode .main-card {
    background-color: #27272a; 
    border-color: #444;
    box-shadow: 0 4px 6px rgba(0,0,0,0.5);
    color: #e0e0e0;
}

body.dark-mode .iso-title {
    color: #fff;
}

/* Hover Dark Mode */
body.dark-mode .card-container:hover .main-card {
    border-color: var(--color-tema); /* Borde Plata */
    background-color: #1a1a1a;
    box-shadow: 6px 6px 0px var(--color-tema); /* Sombra Sólida Plata */
}

/* 3. Imágenes Invertidas (Blanco Puro) */
body.dark-mode .iso-img {
    opacity: 0.9;
}

body.dark-mode .card-container:hover .iso-img {
    opacity: 1;
    transform: scale(1.1);
}

/* 4. Enlace Deslizante (Slide Link) */
body.dark-mode .slide-link {
    background-color: #000; /* Fondo negro profundo */
    border: 1px solid #444;
}

body.dark-mode .slide-link:hover {
    background-color: var(--color-tema); /* Plata al hover */
    color: #000; /* Texto negro */
}

/* 5. Menú Lateral Dark */
body.dark-mode .right-nav-container {
    background: #27272a;
    border-color: #444;
}

body.dark-mode .right-nav-container h2 {
    color: #fff;
}

body.dark-mode .boton-nexo-universal {
    background: #18181b;
    color: #e0e0e0;
    border-color: #555;
}

body.dark-mode .boton-nexo-universal:hover {
    background: var(--color-tema); 
    color: #000; 
    border-color: var(--color-tema);
    box-shadow: 0 0 10px rgba(224, 224, 224, 0.4);
}

/* Responsive (Adaptado del Original) */
@media (max-width: 1650px) {
    .right-nav-container {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        width: 100%;
        max-width: 1000px;
        margin: 4rem auto 2rem auto;
        background: transparent !important;
        border: none !important;
        box-shadow: none;
        padding: 0 20px;
    }
    .right-nav-links {
        display: flex;
        justify-content: center;
        gap: 1.25rem;
        flex-wrap: wrap;
    }
    .boton-nexo-universal {
        min-width: 160px;
        width: auto;
        margin: 5px;
    }
}

/* Media Query intermedio para portátiles (1024px - 1400px) */
@media (max-width: 1400px) and (min-width: 769px) {
    .right-nav-container {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        width: 100%;
        max-width: 900px;
        margin: 3rem auto 2rem auto;
        background: transparent !important;
        border: none !important;
        box-shadow: none;
        padding: 0 20px;
    }
    .right-nav-container h2 {
        margin-bottom: 20px;
    }
    .right-nav-links {
        display: flex;
        flex-direction: row;
        justify-content: center;
        gap: 1rem;
        flex-wrap: wrap;
    }
    .boton-nexo-universal {
        width: 140px;
        margin: 5px;
        padding: 10px;
        font-size: 0.85rem;
    }
    
    .iso-container {
        gap: 1.5rem;
        max-width: 900px;
    }
    .card-container {
        width: 200px;
        height: 170px;
    }
}

@media (max-width: 768px) {
    body { 
        padding-top: 1rem; 
    }

    h1 { 
        font-size: 2.5rem; 
        width: 95vw; 
        padding-bottom: 3vh; 
    }

    /* Fix de centrado móvil - Usamos Grid para simetría perfecta */
    .iso-container { 
        display: grid;
        grid-template-columns: repeat(2, 1fr); 
        row-gap: 75px; /* Espacio extra crítico para el slide-link de 55px */
        column-gap: 25px; /* Más distancia horizontal */
        padding: 0 15px;
        box-sizing: border-box;
    }

    /* La tarjeta ocupa toda la celda del grid */
    .card-container {
        width: 100%; 
        height: 180px; 
        margin: 0; /* Sin márgenes extraños */
    }
    
    .iso-img { 
        width: 48px; 
        height: 48px; 
    }
    
    /* Menú inferior */
    .right-nav-links { 
        flex-direction: column; 
        align-items: center; 
    }

    .boton-nexo-universal { 
        width: 100%; 
        max-width: 300px; 
    }
}

/* ENCABEZADOS DE SECCIÓN (Windows y Comunidad) */

.fondo-name-system {
    background: linear-gradient(135deg, #0078d4 0%, #00bcf2 100%);
    border: 2px solid #000;
    box-shadow: 0 10px 25px rgba(0, 120, 212, 0.3);
    padding: 20px;
    margin: 60px auto 30px auto;
    max-width: 600px;
    text-align: center;
    border-radius: 50px;
}

.fondo-name-system-p {
    background: #ececeb;
    border: 2px solid #000;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    padding: 15px;
    margin: 40px auto 20px auto;
    max-width: 450px;
    text-align: center;
    border-radius: 30px;
}

.fondo-name-system h3 {
    color: #fff;
    font-size: 2rem;
    font-weight: 900;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.fondo-name-system-p h3 {
    color: #000;
    font-size: 1.2rem;
    font-weight: 800;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Modo Oscuro Windows */
body.dark-mode .fondo-name-system {
    background: linear-gradient(135deg, #005a9e 0%, #0078d4 100%);
    box-shadow: 0 10px 25px rgba(0, 120, 212, 0.2);
    border-color: #e0e0e0;
}

body.dark-mode .fondo-name-system-p {
    background: #27272a;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    border-color: #e0e0e0;
}

body.dark-mode .fondo-name-system-p h3 {
    color: #e0e0e0;
}

/* SECCIÓN LINUX - Grid Plano Estilo Windows */

.fondo-name-system-linux {
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
    border: 2px solid #000;
    box-shadow: 0 10px 25px rgba(243, 156, 18, 0.4); /* Sombra suave suave */
    padding: 20px;
    margin: 80px auto 30px auto;
    max-width: 600px;
    text-align: center;
    border-radius: 50px; /* Bordes muy redondos */
}

.fondo-name-system-linux-sub {
    background: #ececeb;
    border: 2px solid #000;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1); /* Sombra suave */
    padding: 15px;
    margin: 40px auto 20px auto;
    max-width: 400px;
    text-align: center;
    border-radius: 30px; /* Bordes redondos */
}

.fondo-name-system-linux h3 {
    color: #fff;
    font-size: 2rem;
    font-weight: 900;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.fondo-name-system-linux-sub h3 {
    color: #000;
    font-size: 1.2rem;
    font-weight: 800;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.linux-main-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    color: var(--texto-negro);
    margin: 40px auto 15px auto;
    font-weight: 800;
    text-align: center;
    max-width: 90%;
}

.linux-subtitle {
    font-size: 1.1rem;
    color: var(--color-texto-gris);
    text-align: center;
    margin-bottom: 40px;
    font-style: italic;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Ajustes Modo Oscuro Linux */

body.dark-mode .fondo-name-system-linux {
    background: linear-gradient(135deg, #d35400 0%, #c0392b 100%);
    box-shadow: 0 10px 25px rgba(211, 84, 0, 0.3);
    border-color: #e0e0e0;
}

body.dark-mode .fondo-name-system-linux-sub {
    background: #27272a;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    border-color: #e0e0e0;
}

body.dark-mode .fondo-name-system-linux-sub h3 {
    color: #e0e0e0;
}

body.dark-mode .linux-main-title {
    color: #e0e0e0;
}

body.dark-mode .linux-subtitle {
    color: #aaa;
}

@media (max-width: 768px) {
    .fondo-name-system-linux {
        margin: 40px 15px 25px 15px;
        padding: 15px;
        box-shadow: 5px 5px 0px #000;
    }

    .fondo-name-system-linux-sub {
        max-width: 90%;
        margin: 30px auto 15px auto;
    }

    .fondo-name-system-linux h3 {
        font-size: 1.5rem;
    }

    .fondo-name-system, 
    .fondo-name-system-p {
        max-width: 90%;
        margin-left: 15px;
        margin-right: 15px;
    }

    .fondo-name-system {
        padding: 15px;
        border-radius: 40px;
    }
}