:root {
    --color-tema: var(--nexo-pc);
    --color-hover: var(--nexo-pc-hover);

    --precio-bg: #000000;
    --precio-text: #ffffff;

    --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: var(--gris-borde-divisor);
}

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 {
    text-align: center; width: 100%; margin-top: 5rem;
    padding: 0 20px;
}

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);
    display: inline-block;
    padding-bottom: 2vh;
    max-width: 90%;

    color: var(--color-tema);
    border-bottom: 2px solid var(--gris-borde-h1);
}

.subtitulo-seccion {
    font-family: 'Montserrat', sans-serif; 
    font-weight: 900;
    font-size: clamp(1.2rem, 4vw, 1.875rem); 
    margin: 2rem 0 1rem 0; 
    text-align: center;
    scroll-margin-top: 100px;

    color: var(--texto-negro);
}

.descripcion-seccion {
    font-size: 1.1rem; 
    margin-bottom: 4vh; 
    text-align: center;
    max-width: 800px;
    margin-left: auto; 
    margin-right: auto; 
    padding: 0 20px;

    color: var(--color-texto-gris); 
}

/* img */
.working-img {
    display: block; margin: 0 auto 4rem auto;
    width: 90%; max-width: 900px; height: auto;

    border-radius: 20px; border: 2px solid #000;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/*menú derecha de categorías*/
.pc-nav-container {
    position: fixed;
    left: 20px; 
    top: 50%; 
    transform: translateY(-50%);
    display: flex; 
    flex-direction: column;
    gap: 15px;
    padding: 25px 20px; 
    border-radius: 20px;
    z-index: 10000; 
    max-height: 85vh; 
    overflow-y: auto; 
    width: 200px;
    scrollbar-width: thin; 

    scrollbar-color: var(--color-tema) #f0f0f0;
    background: var(--fondo-navegacion);
    border: 2px solid var(--borde-navegacion);
}

.pc-nav-container h3 {
    font-size: 1.2rem; 
    font-weight: 800; 
    text-align: center; 
    margin-bottom: 10px;

    color: var(--texto-negro);
}

.nav-anchor {
    padding: 12px; 
    text-decoration: none; 
    font-weight: 700;
    border-radius: 10px; 
    font-size: 0.9rem; 
    text-align: center;
    transition: all 0.2s ease;
    
    color: var(--texto-boton-nav);
    border: 2px solid var(--borde-boton-nav);
    background: var(--fondo-boton-nav);
}

.nav-anchor:hover {
    color: #fff; 
    transform: scale(1.02); 

    border-color: var(--color-tema);
    background: var(--color-tema); 
}

/* Botón Top Tier (Dorado) */
a[href="#top-tier"] {
    color: var(--texto-boton-nav);
    border: 2px solid var(--borde-boton-nav);
    background: var(--fondo-boton-nav);
}
a[href="#top-tier"]:hover {
    color: #504e16;
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.6);
    transform: scale(1.05);
    background: linear-gradient(45deg, #FFD700, #FFA500);
    border-color: #000; 
}

.right-nav-container {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 200px;
    background: #ffffff;
    border: 2px solid #000000;
    box-shadow: 4px 4px 0px #000000;
    padding: 25px 20px;
    border-radius: 12px;
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.right-nav-container .google-auto-placed,
.right-nav-container .adsbygoogle {
    display: none !important;
}

.right-nav-container h3 {
    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: 15px;
    align-items: center; 
    justify-content: center; 
    width: 100%;
}

.right-nav-links .boton-nexo-universal {
    width: 100%;
    max-width: 160px;
}

.nav-anchor-right {
    padding: 10px 15px; 
    text-decoration: none; 
    font-weight: 800; 
    font-size: 0.9rem;
    border-radius: 10px; 
    transition: all 0.2s ease; 
    text-align: center; 
    display: block;

    color: var(--texto-boton-nav);
    border: 2px solid var(--borde-boton-nav);
    background: var(--fondo-boton-nav);
}

.nav-anchor-right:hover {
    transform: translateX(-5px);

    background: var(--color-tema); 
    color: #fff; 
    border-color: #000;
}

/* grid PRINCIPAL */
.contenedor-pc {
    display: flex; 
    flex-wrap: wrap; 
    justify-content: center;
    gap: 2rem; 
    width: 100%; 
    max-width: 1000px; 
    margin: 0 auto 5rem auto; 
    padding: 0 20px;
    position: relative;
}

/* contenedor pc */
.tarjeta-pc {
    width: 100%; 
    max-width: 350px; 
    padding: 2rem;
    position: relative; 
    display: flex; 
    flex-direction: column; 
    justify-content: space-between;
    border-radius: 15px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    
    background-color: var(--fondo-card);
    border: 2px solid var(--borde-card);
    box-shadow: var(--sombra-industrial);
}

.tarjeta-pc:hover {
    transform: translateY(-8px);
    border-color: var(--color-tema);
    box-shadow: 8px 8px 0px var(--color-tema);
}

.tarjeta-cabecera {
    border-bottom: 2px solid var(--gris-borde-h1);
    padding-bottom: 1rem; 
    margin-bottom: 1rem; 
    text-align: center;
}

.tarjeta-cabecera h2 {
    font-family: 'Montserrat', sans-serif; 
    font-weight: 900; 
    font-size: 1.5rem;
    margin-bottom: 0.5rem;

    color: var(--texto-negro);
}

.etiqueta-precio {
    display: inline-block; 
    padding: 0.4rem 1rem; 
    border-radius: 8px;
    font-weight: 700; 
    font-size: 0.9rem;

    background: var(--precio-bg); 
    color: var(--precio-text);
}

.uso-recomendado {
    font-size: 0.9rem; 
    margin-bottom: 1rem; 
    text-align: center; 
    font-style: italic;

    color: var(--color-texto-gris);
}

.lista-specs { 
    margin-bottom: 1.5rem; 
    text-align: left; 
}

.lista-specs ul { 
    list-style: none; 
    padding: 0; 
}

.lista-specs li {
    margin-bottom: 0.8rem; 
    font-size: 0.95rem;
    border-bottom: 1px dotted var(--gris-borde-h1);
    padding-bottom: 0.4rem; 
    display: flex; 
    justify-content: space-between;
    color: var(--texto-negro);
}

.boton-compra {
    display: block; 
    width: 90%; 
    max-width: 300px; 
    padding: 1rem; 
    text-align: center;
    margin: 0 auto; 
    border-radius: 10px; 
    text-decoration: none;
    font-weight: 900; 
    font-size: 1rem; 
    text-transform: uppercase;
    transition: all 0.3s ease;
    
    background-color: var(--fondo-boton-nav);
    color: var(--texto-boton-nav);
    border: 2px solid var(--borde-boton-nav);
}

.boton-compra:hover {
    background-color: var(--color-tema);
    color: #fff; border-color: #000;
    transform: translateY(-3px);
    box-shadow: 0 5px 0px rgba(0,0,0,1);
}

.gama-media { 
    border-color: var(--color-tema); 
}
.gama-media .etiqueta-precio { 
    background: var(--color-tema); 
    color: #fff; 
}

/* gama premium */
.tarjeta-pc.gama-premium {
    background: linear-gradient(180deg, #1a1a1a 0%, #000000 100%) !important;
    border-color: #D4AF37 !important;
    color: #FFFFFF !important;
}
.tarjeta-pc.gama-premium h2 {
    background: linear-gradient(to bottom, #FFFFFF, #D4AF37);
    background-clip: text; -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    color: #D4AF37;
}
.tarjeta-pc.gama-premium .etiqueta-precio { 
    background: #D4AF37 !important; 
    color: #000000 !important; 
}

.tarjeta-pc.gama-premium .uso-recomendado { 
    color: #A0A0A0 !important; 
}

.tarjeta-pc.gama-premium .lista-specs li { 
    border-bottom: 1px dotted rgba(212, 175, 55, 0.3); 
    color: #E0E0E0 !important; 
}

.tarjeta-pc.gama-premium .boton-compra { 
    background-color: transparent; 
    border: 2px solid #D4AF37; 
    color: #D4AF37; 
}

.tarjeta-pc.gama-premium .boton-compra:hover { 
    background-color: #D4AF37; 
    color: #000000; 
}

.tarjeta-pc.gama-premium:hover { 
    box-shadow: 0 4px 15px rgba(255, 174, 0, 0.4); 
    transform: translateY(-8px); 
}

.parte-elite, .parte-recomendado {
    position: absolute; 
    top: -0.9rem; 
    left: 50%; 
    transform: translateX(-50%);
    padding: 0.4rem 1.2rem; 
    border-radius: 20px; 
    font-weight: 900; 
    font-size: 0.75rem; z-index: 2; 
    text-transform: uppercase;

    border: 2px solid #000;
}
.parte-elite { background: #D4AF37; color: #000; }
.parte-recomendado { background: #ffcc00; color: #000; }

/* ADSENSE FIX */
.contenedor-pc .google-auto-placed { display: none !important; }

/* SECCIÓN INFERIOR (Móvil) */
.nexo-seccion-interes { width: 100%; margin: 2rem 0 3rem 0; display: none; padding: 0 20px; }
.nexo-interes-contenedor { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; width: 100%; max-width: 500px; margin: 0 auto; }

/* Botón Universal (CORREGIDO Y CENTRADO) */
.boton-nexo-universal {
    display: block; 
    width: 90%;          
    max-width: 300px;    
    margin: 0 auto;      /* Centrado horizontal automático */
    padding: 10px 16px;  /* Padding reducido */
    text-align: center; text-decoration: none;
    border-radius: 10px; font-weight: 700; font-size: 0.9rem; transition: all 0.2s;
    background-color: #fff; border: 2px solid #000; color: #000;
}
.boton-nexo-universal:hover {
    background-color: var(--nexo-pc); color: #fff; border-color: #000; transform: translateY(-4px);
    box-shadow: 0 5px 0px #000;
}

body.dark-mode {
    --color-tema: #66b3ff; /* Azul Neón */
    --precio-bg: #66b3ff;
    --precio-text: #000;
    --fondo-card-hover: #1a1a1a;
}

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

body.dark-mode .tarjeta-pc {
    background-color: #27272a; border-color: #444;
    box-shadow: 0 4px 6px rgba(0,0,0,0.5);
    color: #e0e0e0;
}
body.dark-mode .tarjeta-pc:not(.gama-premium):hover {
    transform: translateY(-8px);
    border-color: var(--color-tema);
    background-color: #1a1a1a;
    box-shadow: 8px 8px 0px var(--color-tema);
}

body.dark-mode .tarjeta-cabecera { border-bottom-color: #444; }
body.dark-mode .lista-specs li { border-bottom-color: #333; color: #ccc; }

body.dark-mode .boton-compra {
    background-color: #18181b; color: #e0e0e0; border-color: #555;
}
body.dark-mode .boton-compra:hover {
    background-color: var(--color-tema); color: #000; border-color: var(--color-tema);
    box-shadow: 0 0 15px rgba(102, 179, 255, 0.4);
}

body.dark-mode .tarjeta-pc.gama-premium {
    background: #000000 !important;
    border-color: #ffd700 !important;
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.1);
}
body.dark-mode .tarjeta-pc.gama-premium:hover {
    box-shadow: 0 0 30px rgba(255, 215, 0, 0.3);
}

body.dark-mode .pc-nav-container,
body.dark-mode .right-nav-container {
    background: rgba(39, 39, 42, 0.98) !important; 
    border-color: #444;
}
body.dark-mode .pc-nav-container h3, 
body.dark-mode .right-nav-container h3 { color: #fff; }

body.dark-mode .nav-anchor,
body.dark-mode .nav-anchor-right {
    background: #18181b; color: #e0e0e0; border-color: #555;
}

body.dark-mode a[href="#top-tier"]:hover {
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.6);
    transform: scale(1.05);
    background: linear-gradient(45deg, #FFD700, #FFA500);
    border-color: #1a1a1a;
}

body.dark-mode .nav-anchor:hover,
body.dark-mode .nav-anchor-right:hover {
    background: var(--color-tema); color: #000;
    border-color: var(--color-tema);
    box-shadow: 0 0 10px rgba(102, 179, 255, 0.4);
}

body.dark-mode .working-img {
    filter: grayscale(100%) invert(1);
    border-color: #fff;
}

body.dark-mode .boton-nexo-universal {
    background: #27272a; color: #fff; 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 15px rgba(102, 179, 255, 0.4);
}

@media (max-width: 1350px) {
    .right-nav-container { 
        display: none; 
    }

    .nexo-seccion-interes { 
        display: flex; 
    }

}

@media (max-width: 1250px) {
    body { padding-top: 100px; }
    .contenedor-pc, h1 { padding-left: 20px; padding-right: 20px; }

    .pc-nav-container {
        position: fixed; 
        top: 0; 
        left: 0; 
        right: 0; 
        transform: none;
        width: 100%; 
        max-width: 100%; 
        max-height: 80px; 
        border-radius: 0; 
        border: none; 
        display: flex; 
        flex-direction: row; 
        flex-wrap: wrap; 
        justify-content: center;
        overflow-y: auto; 
        overflow-x: auto;
        padding: 10px;
        gap: 8px;
        
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(5px);
        border-bottom: 2px solid var(--borde-navegacion);
        box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    }

    /* Forzamos fondo oscuro en móvil dark mode */
    @media (prefers-color-scheme: dark) { 
        .pc-nav-container { 
            background: rgba(30, 30, 30, 0.95); 
        } 
    }

    /* Ocultar el título en móvil */
    .pc-nav-container h3 {
        display: none !important;
    }

    .nav-anchor { 
        flex: 0 1 auto;
        min-width: 110px;
        padding: 8px 12px; 
        font-size: 0.8rem; 
        margin: 0;
        border-width: 2px;
        white-space: nowrap;
    }
    
    .right-nav-container { display: none; }
    .nexo-seccion-interes { display: block; margin: 2rem 0 3rem 0; }
    .nexo-interes-contenedor { gap: 8px; max-width: 100%; flex-direction: row; flex-wrap: wrap; }
}

@media (max-width: 768px) {
    body { 
        padding-top: 100px; 
    }

    h1 { 
        font-size: 2.2rem; 
        width: 90%; 
        margin-top: 2rem; 
    }

    .pc-nav-container {
        max-height: 70px;
        padding: 8px;
    }

    .nav-anchor {
        padding: 6px 10px;
        font-size: 0.75rem;
        min-width: 100px;
    }

    .contenedor-pc {
        gap: 10px;
        padding: 0 10px;
        justify-content: center;
    }

    .gama-media { 
        transform: scale(1); 
    }

    .gama-media:hover { 
        transform: translateY(-5px); 
    }

    .tarjeta-pc { 
        max-width: 100%; 
    }

    .nexo-interes-contenedor { 
        width: 100%; 
        padding: 0 10px; 
        gap: 8px; 
    }

    .boton-nexo-universal { 
        max-width: 280px; 
        font-size: 0.85rem; 
        padding: 9px 14px; 
    }
}