/*
     * Copyright 2026 Akutangulo - navarr0
     * Proprietary software of Akutangulo.com
     * https://www.akutangulo.com
     *
     * Diseñado y creado con todo el amor del mundo
     * por navarr0 de Akutangulo.com.
     */

    /* ============================================================
   AKUTANGULO - HOJA DE ESTILOS GLOBAL
   Extraída de _template.html
   Ruta: httpdocs_new/assets/css/styles-akutangulo.css
   ============================================================ */
    @import url('https://fonts.googleapis.com/css2?family=Noto+Sans:ital,wght@0,100..900;1,100..900&display=swap');

    /* === FUENTES === */
    @font-face {
        font-family: 'bauhouse_akutangulo';
        src: url("../fonts/bauhouse_akutangulo.woff2") format("woff2");
        font-display: swap;
    }

    /* === VARIABLES GLOBALES AKUTANGULO === */
    :root {
        color-scheme: dark;

        /* Colores base */
        --aku-morado: #9300d3;
        --aku-morado-claro: #b54ade;
        --aku-morado-oscuro: #6a00a0;
        --aku-cian: #00c2ff;
        --aku-azul: #3d53cc;
        --aku-rosa: #ff5e8f;

        /* Fondos y superficies */
        --aku-fondo: #0d0d10;
        --aku-superficie: #15151b;
        --aku-texto: #f8f8fc;
        --aku-texto-secundario: #b7b7c4;
        --aku-borde: rgba(181, 74, 222, 0.28);
        --aku-glow-fuerte: rgba(147, 0, 211, 0.65);

        /* Header específico */
        --header-bg: #17191f;
        --header-glow: rgba(147, 0, 211, 0.18);
        --header-glow-secondary: rgba(71, 94, 255, 0.08);
        --header-shadow: rgba(0, 0, 0, 0.68);
        --header-texture: rgba(255, 255, 255, 0.028);
        --plane-edge: rgba(255, 255, 255, 0.08);
        --plane-shadow: rgba(0, 0, 0, 0.42);
        --nav-bg: rgba(23, 25, 31, 0.85);
        --nav-dropdown-bg: rgba(20, 22, 28, 0.95);

        /* Toggle atmósfera */
        --knob: #343a45;
        --knob-border: rgba(255, 255, 255, 0.26);
        --toggle-border: rgba(255, 255, 255, 0.2);
        --toggle-accent: #a874ff;
        --toggle-halo: rgba(168, 116, 255, 0.34);

        /* Footer específico */
        --facebook: #3b5999;
        --x-twitter: #00acee;
        --github: #333;
        --linkedin: #0077b5;
        --telegram: #0088cc;
        --whatsapp: #25d366;
        --google: #db4437;

        /* Transiciones */
        --duration: 420ms;
        --ease: cubic-bezier(0.22, 1, 0.36, 1);

        /* Div mágico específico */
        --aku-magic-max-width: 80rem;
        --aku-magic-block-padding: clamp(1rem, 2vw, 1.5rem);
        --aku-magic-gap: clamp(1rem, 2.5vw, 2rem);
        --aku-magic-block-spacing: clamp(1.25rem, 3vw, 2rem);
        --aku-magic-measure: 68ch;
        --aku-magic-line-height: 1.6;
        --aku-magic-media-min-mobile: clamp(14rem, 55vw, 24rem);
        --aku-magic-surface: var(--aku-superficie);
        --aku-magic-border-color: var(--aku-borde);
        --aku-magic-border-width: 1px;
        --aku-magic-radius: 1rem;
        --aku-magic-media-bg: rgba(5, 5, 8, 0.55);
        --aku-magic-modal-bg: rgba(10, 10, 18, 0.95);
        --aku-magic-zoom-bg: rgba(15, 23, 42, 0.9);
        --aku-magic-zoom-bg-hover: rgba(30, 41, 59, 0.98);
        --aku-magic-mermaid-bg: #0d1520;
    }

    @property --aku-color-neon {
        syntax: "<color>";
        inherits: false;
        initial-value: deeppink;
    }

    @keyframes aku-ciclo-neon {

        0%,
        100% {
            --aku-color-neon: deeppink;
        }

        25% {
            --aku-color-neon: lime;
        }

        50% {
            --aku-color-neon: magenta;
        }

        75% {
            --aku-color-neon: mediumslateblue;
        }
    }

    html[data-atmosphere="cobalto"] {
        --aku-fondo: #0b1727;
        --aku-superficie: #12253f;
        --header-bg: #10233f;
        --header-glow: rgba(77, 216, 255, 0.18);
        --header-glow-secondary: rgba(147, 0, 211, 0.14);
        --header-shadow: rgba(2, 12, 28, 0.64);
        --header-texture: rgba(198, 222, 255, 0.035);
        --plane-edge: rgba(198, 232, 255, 0.11);
        --plane-shadow: rgba(0, 9, 24, 0.46);
        --nav-bg: rgba(16, 35, 63, 0.85);
        --nav-dropdown-bg: rgba(12, 27, 48, 0.95);
        --knob: #284b78;
        --knob-border: rgba(198, 222, 255, 0.32);
        --toggle-accent: #4dd8ff;
        --toggle-halo: rgba(77, 216, 255, 0.4);

        /* Div mágico en atmósfera cobalto */
        --aku-magic-media-bg: rgba(8, 22, 42, 0.6);
        --aku-magic-modal-bg: rgba(7, 18, 36, 0.95);
        --aku-magic-zoom-bg: rgba(16, 36, 64, 0.92);
        --aku-magic-zoom-bg-hover: rgba(26, 52, 92, 0.98);
        --aku-magic-mermaid-bg: #0c1c34;
    }

    /* === RESET Y BASE === */
    *,
    *::before,
    *::after {
        box-sizing: border-box;
    }

    html,
    body {
        min-height: 100%;
        margin: 0;
        /* CRÍTICO: clip para permitir position: sticky en el menú */
        overflow-x: clip;
    }

    body {
        background-color: var(--aku-fondo);
        color: var(--aku-texto);
        font-family: "Noto Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
        line-height: 1.5;
        transition: background-color var(--duration) var(--ease);
    }

    /* === UTILIDADES === */
    .skip-link {
        position: absolute;
        top: 0.75rem;
        left: 0.75rem;
        z-index: 9999;
        padding: 0.75rem 1.25rem;
        background: var(--bg-surface, #1e1e24);
        color: var(--text-primary, #ffffff);
        border: 2px solid var(--accent, #9300d3);
        border-radius: var(--radius-sm, 8px);
        font-weight: 700;
        text-decoration: none;
        box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
        transform: translateY(-200%);
        transition: transform 0.2s ease-in-out;
    }

    .skip-link:focus,
    .skip-link:focus-visible {
        transform: translateY(0);
        outline: 3px solid var(--focus-ring, #00ffff);
        outline-offset: 2px;
    }

    .sr-only,
    #toggle-menu-principal,
    .toggle-submenu-principal {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
    }

    .sr-only {
        white-space: nowrap;
        border: 0;
    }

    /* ============================================================
   HEADER AKUTANGULO
   ============================================================ */
    .ak-header {
        position: relative;
        overflow-x: clip;
    }

    .ak-header-hero {
        position: relative;
        overflow: hidden;
        isolation: isolate;
        background:
            radial-gradient(ellipse at 50% 42%, var(--header-glow), transparent 52%),
            radial-gradient(circle at 18% 20%, var(--header-glow-secondary), transparent 32%),
            linear-gradient(180deg, rgba(255, 255, 255, 0.018), transparent 45%),
            var(--header-bg);
        box-shadow: inset 0 -2.5rem 4rem var(--header-shadow);
        transition: background-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
    }

    .ak-header-hero::before,
    .ak-header-hero::after {
        content: "";
        position: absolute;
        pointer-events: none;
    }

    .ak-header-hero::before {
        inset: 0;
        z-index: 0;
        opacity: 0.75;
        background:
            repeating-linear-gradient(12deg, transparent 0 3px, var(--header-texture) 3px 4px),
            repeating-linear-gradient(102deg, transparent 0 7px, rgba(0, 0, 0, 0.035) 7px 8px);
        background-size: 11px 11px, 17px 17px;
        mix-blend-mode: soft-light;
    }

    .ak-header-hero::after {
        top: 48%;
        left: 50%;
        z-index: 2;
        width: min(78vw, 62rem);
        aspect-ratio: 2.5;
        border-radius: 50%;
        background: var(--aku-color-neon);
        filter: blur(5.5rem);
        opacity: 0.3;
        mix-blend-mode: screen;
        transform: translate(-50%, -50%);
        animation: aku-ciclo-neon 10s ease-in-out infinite, aku-ambiente-opacidad 10s ease-in-out infinite;
    }

    /* Sticky wrapper para mantener menú visible 300px en scroll */
    .ak-nav-sticky-wrapper {
        position: relative;
        margin-bottom: -300px;
        pointer-events: none;
        overflow-x: clip;
    }

    .ak-nav-sticky-wrapper::after {
        content: "";
        display: block;
        height: 300px;
    }

    /* Navegación principal */
    #akutangulo-nav {
        position: sticky;
        top: 0;
        z-index: 50;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0.75rem 2rem;
        background: var(--nav-bg);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-top: 1px solid var(--plane-edge);
        border-bottom: 1px solid var(--plane-edge);
        pointer-events: auto;
        transition: background-color var(--duration) var(--ease), border-color var(--duration) var(--ease);
    }

    .logo-menu-akutangulo,
    #footer-marca-heading,
    .marca-tipografica-akutangulo {
        font-family: "bauhouse_akutangulo", sans-serif;
    }

    .logo-menu-akutangulo {
        font-size: 1.65rem;
        color: #fff;
        text-shadow: 0 0 12px var(--toggle-halo);
        letter-spacing: 0.5px;
    }

    /* Checkboxes ocultos */
    #toggle-menu-principal,
    .toggle-submenu-principal {
        opacity: 0;
        pointer-events: none;
    }

    .items-menu-principal,
    .items-submenu-principal,
    .redes-sociales-akutangulo,
    .footer-columna ul {
        margin: 0;
        list-style: none;
    }

    .items-menu-principal {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        padding: 0;
        margin-left: auto;
    }

    .submenu-principal {
        position: relative;
        display: flex;
        align-items: center;
    }

    .submenu-principal a {
        color: rgba(255, 255, 255, 0.85);
        text-decoration: none;
        font-size: 0.95rem;
        font-weight: 500;
        padding: 0.4rem 0.6rem;
        border-radius: 6px;
        transition: color 200ms ease, text-shadow 200ms ease, background-color 200ms ease;
    }

    .submenu-principal a:hover,
    .submenu-principal a[aria-current="page"] {
        color: var(--toggle-accent);
        text-shadow: 0 0 8px var(--toggle-halo);
    }

    .enlace-submenu-principal {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 0.4rem;
        margin-left: -0.25rem;
        color: rgba(255, 255, 255, 0.7);
        cursor: pointer;
        transition: color 200ms ease, transform 200ms ease;
    }

    .enlace-submenu-principal i {
        font-size: 0.8rem;
        transition: transform 300ms var(--ease);
    }

    .enlace-submenu-principal:hover {
        color: var(--toggle-accent);
    }

    /* Submenú desplegable Desktop */
    .items-submenu-principal {
        position: absolute;
        top: calc(100% + 0.5rem);
        left: 0;
        min-width: 210px;
        padding: 0.5rem;
        background: var(--nav-dropdown-bg);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border: 1px solid var(--plane-edge);
        border-radius: 10px;
        box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45);
        opacity: 0;
        visibility: hidden;
        transform: translateY(8px);
        transition: opacity 250ms var(--ease), transform 250ms var(--ease), visibility 250ms var(--ease);
        z-index: 60;
    }

    .items-submenu-principal a {
        display: block;
        padding: 0.6rem 0.85rem;
        font-size: 0.9rem;
    }

    .items-submenu-principal a:hover {
        background: rgba(255, 255, 255, 0.05);
    }

    .submenu-principal:hover>.items-submenu-principal,
    .toggle-submenu-principal:checked~.items-submenu-principal {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .toggle-submenu-principal:checked+.enlace-submenu-principal i {
        transform: rotate(180deg);
    }

    /* Toggle atmósfera */
    .menu-toggle-item {
        margin-left: 0.5rem;
    }

    .atmosphere-toggle {
        position: relative;
        z-index: 10;
        width: 4.5rem;
        height: 2.6rem;
        padding: 0;
        background: none;
        border: 0;
        border-radius: 999px;
        cursor: pointer;
        transition: transform 180ms ease;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .atmosphere-toggle:hover {
        transform: translateY(-2px);
    }

    .atmosphere-toggle:active {
        transform: scale(0.97);
    }

    .atmosphere-toggle:focus-visible {
        outline: 3px solid var(--aku-cian);
        outline-offset: 4px;
    }

    .atmosphere-toggle__svg {
        display: block;
        width: 100%;
        height: 100%;
        overflow: visible;
        filter: drop-shadow(0 0 0.7rem var(--toggle-halo)) drop-shadow(0 0.65rem 0.9rem rgba(0, 0, 0, 0.32));
        transition: filter var(--duration) var(--ease);
    }

    .atmosphere-toggle:hover .atmosphere-toggle__svg {
        filter: drop-shadow(0 0 1rem var(--toggle-halo)) drop-shadow(0 0.8rem 1.1rem rgba(0, 0, 0, 0.35));
    }

    .atmosphere-toggle__track {
        fill: rgba(255, 255, 255, 0.035);
        stroke: var(--toggle-border);
        stroke-width: 1.25;
    }

    .atmosphere-toggle__graphite-zone {
        fill: rgba(255, 255, 255, 0.045);
    }

    .atmosphere-toggle__cobalt-zone {
        fill: rgba(77, 216, 255, 0.08);
    }

    .atmosphere-toggle__graphite-lines {
        fill: none;
        stroke: rgba(232, 237, 246, 0.62);
        stroke-width: 1.5;
        stroke-linecap: round;
        transition: opacity var(--duration) var(--ease);
    }

    .atmosphere-toggle__cobalt-wave {
        fill: none;
        stroke: #78e5ff;
        stroke-width: 1.65;
        stroke-linecap: round;
        stroke-linejoin: round;
        opacity: 0.28;
        filter: drop-shadow(0 0 4px rgba(77, 216, 255, 0.72));
        transform: scale(0.92);
        transform-origin: 58px 24px;
        transition: opacity var(--duration) var(--ease), transform 600ms var(--ease);
    }

    .atmosphere-toggle__knob,
    .atmosphere-toggle__anagram {
        transition: transform 600ms var(--ease), fill var(--duration) var(--ease), filter var(--duration) var(--ease);
    }

    .atmosphere-toggle__knob {
        fill: var(--knob);
        stroke: var(--knob-border);
        stroke-width: 1.3;
        filter: drop-shadow(0 5px 7px rgba(0, 0, 0, 0.38));
    }

    .atmosphere-toggle__anagram {
        fill: var(--toggle-accent);
        transform-origin: 24px 24px;
    }

    html[data-atmosphere="cobalto"] .atmosphere-toggle__knob,
    html[data-atmosphere="cobalto"] .atmosphere-toggle__anagram {
        transform: translateX(34px);
    }

    html[data-atmosphere="cobalto"] .atmosphere-toggle__knob {
        fill: #173f67;
        stroke: rgba(170, 231, 255, 0.68);
        filter: drop-shadow(0 5px 7px rgba(0, 0, 0, 0.34)) drop-shadow(0 0 8px rgba(77, 216, 255, 0.58));
    }

    html[data-atmosphere="cobalto"] .atmosphere-toggle__graphite-lines {
        opacity: 0.34;
    }

    html[data-atmosphere="cobalto"] .atmosphere-toggle__cobalt-wave {
        opacity: 1;
        transform: scale(1.06);
    }

    html[data-atmosphere="cobalto"] .atmosphere-toggle__anagram {
        fill: #c7f5ff;
        filter: drop-shadow(0 0 5px rgba(77, 216, 255, 0.72));
    }

    /* Arte mesh SVG */
    .header-art {
        position: absolute;
        inset: 0;
        z-index: 1;
        pointer-events: none;
    }

    .header-art__plane {
        stroke: var(--plane-edge);
        stroke-width: 1;
        vector-effect: non-scaling-stroke;
        filter: url(#plane-shadow);
    }

    .header-art__plane--light {
        fill: url(#plane-light);
    }

    .header-art__plane--medium {
        fill: url(#plane-medium);
    }

    .header-art__plane--dark {
        fill: url(#plane-dark);
    }

    .mesh-edge-glow {
        fill: none;
        stroke-width: 1.45;
        stroke-linecap: round;
        stroke-linejoin: round;
        vector-effect: non-scaling-stroke;
        opacity: 0.22;
        filter: url(#edge-line-glow);
        animation: aku-malla-borde-color 10s linear infinite;
    }

    .mesh-particle {
        opacity: 0.48;
        filter: url(#edge-particle-glow);
        animation: aku-particula-color 10s linear infinite, aku-particula-opacidad 2.6s ease-in-out infinite;
    }

    .aku-container-logo {
        position: relative;
        z-index: 3;
        min-height: clamp(180px, 35vh, 420px);
        overflow: hidden;
    }

    #aku {
        position: absolute;
        inset: 0;
        margin: 0;
        transform-style: preserve-3d;
        animation: aku-logo-balanceo 5s ease-in-out infinite;
    }

    .logo-akutangulo-portada {
        position: absolute;
        width: 100%;
        padding: 5px;
        color: var(--aku-morado);
        font: clamp(4rem, 8vw, 9rem) / 1.5 "bauhouse_akutangulo", sans-serif;
        text-align: center;
        text-shadow: 0 0 30px var(--aku-color-neon);
        animation: aku-ciclo-neon 10s ease-in-out infinite;
    }

    #aku span:nth-child(2) {
        transform: translateZ(5px);
    }

    #aku span:nth-child(3) {
        transform: translateZ(10px);
    }

    #aku span:nth-child(4) {
        transform: translateZ(15px);
    }

    #aku span:nth-child(5) {
        transform: translateZ(20px);
    }

    #aku span:nth-child(6) {
        transform: translateZ(25px);
    }

    #aku span:nth-child(7) {
        transform: translateZ(30px);
    }

    #aku span:nth-child(8) {
        transform: translateZ(35px);
    }

    /* Hamburguesa móvil */
    .icono-hamburguesa {
        display: none;
        flex-direction: column;
        justify-content: space-between;
        width: 1.8rem;
        height: 1.25rem;
        cursor: pointer;
        z-index: 100;
    }

    .icono-hamburguesa span {
        display: block;
        width: 100%;
        height: 2px;
        background-color: #fff;
        border-radius: 2px;
        transition: transform 300ms var(--ease), opacity 300ms var(--ease);
    }

    /* ============================================================
   ACCESOS RÁPIDOS (barra secundaria bajo el menú principal)
   ============================================================ */
    .ak-accesos-rapidos {
        pointer-events: auto;
        border-top: 1px solid var(--plane-edge);
        border-bottom: 1px solid var(--plane-edge);
        background: var(--nav-dropdown-bg);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
    }

    .ak-accesos-rapidos_lista {
        display: flex;
        align-items: center;
        justify-content: space-evenly;
        flex-wrap: wrap;
        gap: 0.5rem;
        margin: 0;
        padding: 0.45rem 2rem;
        list-style: none;
    }

    .ak-accesos-rapidos .aku-cta {
        min-height: 44px;
        padding: 0.55rem 1rem;
        font-size: 0.9rem;
    }

    .ak-accesos-rapidos .aku-cta:focus-visible {
        outline-color: var(--aku-cian);
    }

    /* ============================================================
   MAIN CONTENT AREA
   ============================================================ */
    main {
        --aku-padding-layout: 2rem;
        position: relative;
        min-height: 50vh;
        padding: var(--aku-padding-layout);
    }

    /* Ajuste móvil: menos espacio lateral, uniforme para todo el contenido */
    @media (max-width: 900px) {
        main {
            --aku-padding-layout: 1rem;
            padding-inline: var(--aku-padding-layout);
        }
    }

    @media (max-width: 600px) {
        main {
            --aku-padding-layout: 0.5rem;
            padding-inline: var(--aku-padding-layout);
        }
    }

    /* ============================================================
   TÍTULOS Y LISTAS DE CONTENIDO
   ============================================================ */
    h1,
    h2,
    h3 {
        font-family: "Noto Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
        font-weight: normal;
        padding: 5px;
        margin: 0.5rem;
        text-align: center;
        line-height: 1.5;
    }

    h1,
    h2 {
        color: var(--aku-morado-claro);
    }

    h1 {
        font-size: 3rem;
        -webkit-text-stroke: 1px rgba(255, 255, 255, 0.7);
        text-shadow: 0 0 5px #000, 0 0 10px #000, 0 0 20px var(--aku-color-neon), 0 0 30px var(--aku-color-neon);
        animation: aku-ciclo-neon 4s ease-in-out infinite;
    }

    h2,
    h3,
    main ul li::before {
        -webkit-text-stroke: 1px var(--aku-color-neon);
        text-shadow: 0 0 10px var(--aku-color-neon);
        animation: aku-ciclo-neon 5s ease-in-out infinite;
    }

    h2 {
        font-size: 2.5rem;
    }

    h3 {
        font-size: 2rem;
        color: transparent;
    }

    main ul {
        max-width: 70ch;
        margin: 0 auto;
        padding: 0;
        list-style: none;
    }

    main ul li {
        position: relative;
        margin-bottom: 1em;
        padding-left: 1.5em;
    }

    main ul li::before {
        content: "◍";
        position: absolute;
        left: 0;
        top: 0;
        font-size: 0.8rem;
    }

    /* ============================================================
   BOTONES CTA REUTILIZABLES
   ============================================================ */
    /* --- Botón CTA base --- */
    .aku-cta {
        position: relative;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        box-sizing: border-box;
        width: fit-content;
        max-width: 100%;
        min-width: 0;
        margin: 0;
        padding: 0.75rem 1.5rem;
        border: 2px solid var(--aku-cta-accent, var(--aku-morado));
        border-radius: 0.5rem;
        color: #9300d3;
        font-family: inherit;
        font-weight: 600;
        font-size: 1rem;
        line-height: 1.2;
        text-align: center;
        cursor: pointer;
        text-decoration: none;
        overflow-wrap: anywhere;
        appearance: none;
        -webkit-appearance: none;
        transition:
            background-color 0.2s ease,
            transform 0.2s ease,
            box-shadow 0.2s ease,
            color 0.2s ease;
    }

    .aku-cta:hover,
    .aku-cta:focus-visible {
        transform: translateY(-2px);
        outline: 3px solid var(--aku-morado);
        outline-offset: 2px;
    }

    .aku-cta .aku-cta-icon {
        width: 1.2em;
        height: 1.2em;
        flex-shrink: 0;
    }

    .aku-cta .aku-cta-brand {
        min-width: 0;
        font-size: 1.3rem;
        font-weight: 700;
        color: inherit;
        text-decoration: none;
        font-family: "bauhouse_akutangulo";
        overflow-wrap: anywhere;
    }

    /* ==========================================================
        PALETA 1 — Neón Ciberpunk
        ========================================================== */
    .aku-cta-palette-neon-dark {
        --aku-cta-accent: #ff00e6;
        background-color: #ff00e6;
        color: #1a0028;
        box-shadow: 0 0 12px rgba(255, 0, 230, 0.35);
    }

    .aku-cta-palette-neon-dark:hover {
        background-color: #ff33ee;
        box-shadow: 0 0 20px rgba(255, 0, 230, 0.55);
        color: #0a0014;
    }

    .aku-cta-palette-neon-light {
        --aku-cta-accent: #9300d3;
        background-color: #0d0d0d;
        color: #d4a0ff;
        box-shadow: 0 0 12px rgba(147, 0, 211, 0.3);
    }

    .aku-cta-palette-neon-light:hover {
        background-color: #1a1a1a;
        box-shadow: 0 0 20px rgba(147, 0, 211, 0.5);
    }

    /* ==========================================================
        PALETA 2 — Azul Eléctrico
        ========================================================== */
    .aku-cta-palette-azul-dark {
        --aku-cta-accent: #00b7ff;
        background-color: #00b7ff;
        color: #001a33;
        box-shadow: 0 0 12px rgba(0, 183, 255, 0.35);
    }

    .aku-cta-palette-azul-dark:hover {
        background-color: #33ccff;
        box-shadow: 0 0 20px rgba(0, 183, 255, 0.55);
        color: #000d1a;
    }

    .aku-cta-palette-azul-light {
        --aku-cta-accent: #9300d3;
        background-color: #001f3f;
        color: #66ccff;
        box-shadow: 0 0 12px rgba(147, 0, 211, 0.3);
    }

    .aku-cta-palette-azul-light:hover {
        background-color: #002b5c;
        box-shadow: 0 0 20px rgba(147, 0, 211, 0.5);
    }

    /* ==========================================================
        PALETA 3 — Amarillo Ácido
        ========================================================== */
    .aku-cta-palette-amarillo-dark {
        --aku-cta-accent: #9300d3;
        background-color: #f5ff00;
        color: #9300d3;
        box-shadow: 0 0 12px rgba(245, 255, 0, 0.4);
    }

    .aku-cta-palette-amarillo-dark:hover {
        background-color: #fcff40;
        box-shadow: 0 0 20px rgba(245, 255, 0, 0.6);
        color: #4a0066;
    }

    .aku-cta-palette-amarillo-light {
        --aku-cta-accent: #f5ff00;
        background-color: #111111;
        color: #f5ff00;
        box-shadow: 0 0 12px rgba(245, 255, 0, 0.2);
    }

    .aku-cta-palette-amarillo-light:hover {
        background-color: #222222;
        box-shadow: 0 0 20px rgba(245, 255, 0, 0.35);
    }

    /* ==========================================================
        PALETA 4 — Verde Matrix
        ========================================================== */
    .aku-cta-palette-verde-dark {
        --aku-cta-accent: #00ff9d;
        background-color: #00ff9d;
        color: #003320;
        box-shadow: 0 0 12px rgba(0, 255, 157, 0.35);
    }

    .aku-cta-palette-verde-dark:hover {
        background-color: #33ffbb;
        box-shadow: 0 0 20px rgba(0, 255, 157, 0.55);
        color: #001a10;
    }

    .aku-cta-palette-verde-light {
        --aku-cta-accent: #9300d3;
        background-color: #0f2a0f;
        color: #66ff99;
        box-shadow: 0 0 12px rgba(147, 0, 211, 0.3);
    }

    .aku-cta-palette-verde-light:hover {
        background-color: #1a4a1a;
        box-shadow: 0 0 20px rgba(147, 0, 211, 0.5);
    }

    /* ==========================================================
        PALETA 5 — Ultra Minimalista
        ========================================================== */
    .aku-cta-palette-minimal-dark {
        --aku-cta-accent: #9300d3;
        background-color: #2a2a2a;
        color: #c99dff;
        box-shadow: 0 0 8px rgba(147, 0, 211, 0.15);
    }

    .aku-cta-palette-minimal-dark:hover {
        background-color: #3a3a3a;
        box-shadow: 0 0 16px rgba(147, 0, 211, 0.3);
    }

    .aku-cta-palette-minimal-light {
        --aku-cta-accent: #9300d3;
        background-color: #eaeaea;
        color: #9300d3;
        box-shadow: 0 0 8px rgba(147, 0, 211, 0.12);
    }

    .aku-cta-palette-minimal-light:hover {
        background-color: #d4d4d4;
        box-shadow: 0 0 16px rgba(147, 0, 211, 0.25);
        color: #4a0066;
    }

    /* ==========================================================
        PALETA 6 — Cian Neón Profundo (usa --aku-cta-accent)
        ========================================================== */
    .aku-cta-palette-cian-dark {
        --aku-cta-accent: #00e5ff;
        background-color: #00c2ff;
        color: #000000;
        box-shadow: 0 0 12px rgba(0, 194, 255, 0.35);
    }

    .aku-cta-palette-cian-dark:hover {
        background-color: #33d6ff;
        box-shadow: 0 0 20px rgba(0, 194, 255, 0.55);
    }

    .aku-cta-palette-cian-light {
        --aku-cta-accent: #00c2ff;
        background-color: #0097a7;
        color: #000000;
        box-shadow: 0 0 12px rgba(0, 151, 167, 0.3);
    }

    .aku-cta-palette-cian-light:hover {
        background-color: #00acc1;
        box-shadow: 0 0 20px rgba(0, 151, 167, 0.5);
    }

    /* ==========================================================
        PALETA 7 — Magenta Reactor (usa --aku-cta-accent)
        ========================================================== */
    .aku-cta-palette-magenta-dark {
        --aku-cta-accent: #ff5bff;
        background-color: #d500f9;
        color: #000000;
        box-shadow: 0 0 12px rgba(213, 0, 249, 0.35);
    }

    .aku-cta-palette-magenta-dark:hover {
        background-color: #e040fb;
        box-shadow: 0 0 20px rgba(213, 0, 249, 0.55);
    }

    .aku-cta-palette-magenta-light {
        --aku-cta-accent: #d500f9;
        background-color: #ab47bc;
        color: #ffffff;
        box-shadow: 0 0 12px rgba(171, 71, 188, 0.3);
    }

    .aku-cta-palette-magenta-light:hover {
        background-color: #a53fc0;
        box-shadow: 0 0 20px rgba(171, 71, 188, 0.5);
    }

    /* ==========================================================
        PALETA 8 — Púrpura Akutangulo Invertido
        ========================================================== */
    .aku-cta-palette-purpura-inv-dark {
        --aku-cta-accent: #9300d3;
        background-color: #1e0b2d;
        color: #c99dff;
        box-shadow: 0 0 12px rgba(147, 0, 211, 0.25);
    }

    .aku-cta-palette-purpura-inv-dark:hover {
        background-color: #31164a;
        box-shadow: 0 0 20px rgba(147, 0, 211, 0.45);
    }

    .aku-cta-palette-purpura-inv-light {
        --aku-cta-accent: #9300d3;
        background-color: #f0e6ff;
        color: #9300d3;
        box-shadow: 0 0 10px rgba(147, 0, 211, 0.12);
    }

    .aku-cta-palette-purpura-inv-light:hover {
        background-color: #e6d8ff;
        box-shadow: 0 0 18px rgba(147, 0, 211, 0.25);
        color: #4a0066;
    }

    /* ==========================================================
        PALETA 9 — Neón Amarillo Ácido Refinado
        ========================================================== */
    .aku-cta-palette-amarillo-ref-dark {
        --aku-cta-accent: #ffea00;
        background-color: #f5ff00;
        color: #9300d3;
        box-shadow: 0 0 12px rgba(245, 255, 0, 0.4);
    }

    .aku-cta-palette-amarillo-ref-dark:hover {
        background-color: #ffff33;
        box-shadow: 0 0 20px rgba(245, 255, 0, 0.6);
        color: #4a0066;
    }

    .aku-cta-palette-amarillo-ref-light {
        --aku-cta-accent: #c6ff00;
        background-color: #d4ff00;
        color: #9300d3;
        box-shadow: 0 0 12px rgba(212, 255, 0, 0.3);
    }

    .aku-cta-palette-amarillo-ref-light:hover {
        background-color: #e4ff33;
        box-shadow: 0 0 20px rgba(212, 255, 0, 0.5);
        color: #4a0066;
    }

    /* ==========================================================
        PALETA 10 — Verde Matrix Refinado
        ========================================================== */
    .aku-cta-palette-verde-ref-dark {
        --aku-cta-accent: #00ffb3;
        background-color: #00ff9d;
        color: #9300d3;
        box-shadow: 0 0 12px rgba(0, 255, 157, 0.35);
    }

    .aku-cta-palette-verde-ref-dark:hover {
        background-color: #33ffb8;
        box-shadow: 0 0 20px rgba(0, 255, 157, 0.55);
        color: #4a0066;
    }

    .aku-cta-palette-verde-ref-light {
        --aku-cta-accent: #00ff9d;
        background-color: #00c77f;
        color: #000000;
        box-shadow: 0 0 12px rgba(0, 199, 127, 0.3);
    }

    .aku-cta-palette-verde-ref-light:hover {
        background-color: #00e08f;
        box-shadow: 0 0 20px rgba(0, 199, 127, 0.5);
    }

    /* ==========================================================
        EFECTO 1 — Neon Halo (pulso de resplandor)
        ========================================================== */
    .aku-cta-fx-halo {
        box-shadow: 0 0 8px rgba(0, 229, 255, 0.4);
        animation: aku-cta-fx-halo-pulse 2s ease-in-out infinite;
    }

    @keyframes aku-cta-fx-halo-pulse {

        0%,
        100% {
            box-shadow: 0 0 6px rgba(0, 229, 255, 0.35);
        }

        50% {
            box-shadow:
                0 0 22px rgba(0, 229, 255, 0.65),
                0 0 44px rgba(0, 229, 255, 0.25);
        }
    }

    /* ==========================================================
        EFECTO 2 — Hologram Shimmer (barrido de luz)
        ========================================================== */
    .aku-cta-fx-shimmer,
    .aku-cta-fx-scanline {
        overflow: hidden;
    }

    .aku-cta-fx-shimmer::after {
        content: "";
        position: absolute;
        inset: 0;
        z-index: 1;
        background: linear-gradient(120deg,
                transparent 0%,
                transparent 35%,
                rgba(255, 255, 255, 0.18) 47%,
                rgba(255, 255, 255, 0.28) 50%,
                rgba(255, 255, 255, 0.18) 53%,
                transparent 65%,
                transparent 100%);
        transform: translateX(-100%);
        animation: aku-cta-fx-shimmer-sweep 2.8s ease-in-out infinite;
        pointer-events: none;
    }

    @keyframes aku-cta-fx-shimmer-sweep {
        100% {
            transform: translateX(100%);
        }
    }

    /* ==========================================================
        EFECTO 3 — Levitar (elevación en hover)
        ========================================================== */
    .aku-cta-fx-levitar {
        transition:
            transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
            box-shadow 0.3s ease;
    }

    .aku-cta-fx-levitar:hover {
        transform: translateY(-6px);
        box-shadow:
            0 12px 28px rgba(0, 0, 0, 0.35),
            0 0 24px rgba(0, 229, 255, 0.5);
    }

    /* ==========================================================
        EFECTO 4 — Glitch (sacudida + sombra cian/magenta)
        ========================================================== */
    .aku-cta-fx-glitch {
        transition: none;
    }

    .aku-cta-fx-glitch:hover {
        animation: aku-cta-fx-glitch-shake 0.35s ease-in-out;
        text-shadow:
            -2px 0 #0ff,
            2px 0 #f0f;
    }

    @keyframes aku-cta-fx-glitch-shake {

        0%,
        100% {
            transform: translate(0);
        }

        10% {
            transform: translate(-3px, 1px);
        }

        20% {
            transform: translate(3px, -1px);
        }

        30% {
            transform: translate(-2px, -1px);
        }

        40% {
            transform: translate(2px, 1px);
        }

        50% {
            transform: translate(0);
        }

        60% {
            transform: translate(1px, 0);
        }

        70% {
            transform: translate(-1px, 1px);
        }

        80% {
            transform: translate(0);
        }
    }

    /* ==========================================================
        EFECTO 5 — Scanline (barrido CRT)
        ========================================================== */
    .aku-cta-fx-scanline::after {
        content: "";
        position: absolute;
        left: 0;
        right: 0;
        height: 2px;
        z-index: 3;
        background: color-mix(in srgb, var(--aku-cta-accent, #0ff) 50%, transparent);
        top: -2px;
        animation: aku-cta-fx-scanline-sweep 2.2s linear infinite;
        pointer-events: none;
    }

    @keyframes aku-cta-fx-scanline-sweep {
        0% {
            top: -2px;
        }

        100% {
            top: calc(100% + 2px);
        }
    }

    /* ==========================================================
        EFECTO 6 — Voltaje Intermitente (flicker en hover)
        ========================================================== */
    .aku-cta-fx-voltaje {
        animation: aku-cta-fx-voltage-flicker 1.5s steps(1) infinite;
        animation-play-state: paused;
    }

    .aku-cta-fx-voltaje:hover {
        animation-play-state: running;
    }

    @keyframes aku-cta-fx-voltage-flicker {

        0%,
        100% {
            border-color: var(--aku-cta-accent, #00e5ff);
            box-shadow: 0 0 8px color-mix(in srgb, var(--aku-cta-accent, #00e5ff) 40%, transparent);
        }

        8% {
            border-color: var(--aku-cta-accent, #0ff);
            box-shadow: 0 0 18px color-mix(in srgb, var(--aku-cta-accent, #0ff) 70%, transparent);
        }

        9% {
            border-color: transparent;
            box-shadow: none;
        }

        10% {
            border-color: var(--aku-cta-accent, #0ff);
            box-shadow: 0 0 18px color-mix(in srgb, var(--aku-cta-accent, #0ff) 70%, transparent);
        }

        25% {
            border-color: var(--aku-cta-accent, #00e5ff);
            box-shadow: 0 0 8px color-mix(in srgb, var(--aku-cta-accent, #00e5ff) 40%, transparent);
        }

        40% {
            border-color: transparent;
            box-shadow: none;
        }

        41% {
            border-color: var(--aku-cta-accent, #00e5ff);
            box-shadow: 0 0 8px color-mix(in srgb, var(--aku-cta-accent, #00e5ff) 40%, transparent);
        }

        55% {
            border-color: var(--aku-cta-accent, #0ff);
            box-shadow: 0 0 24px color-mix(in srgb, var(--aku-cta-accent, #0ff) 80%, transparent);
        }

        56% {
            border-color: transparent;
            box-shadow: none;
        }

        57% {
            border-color: var(--aku-cta-accent, #0ff);
            box-shadow: 0 0 24px color-mix(in srgb, var(--aku-cta-accent, #0ff) 80%, transparent);
        }

        70% {
            border-color: var(--aku-cta-accent, #00e5ff);
            box-shadow: 0 0 8px color-mix(in srgb, var(--aku-cta-accent, #00e5ff) 40%, transparent);
        }
    }

    /* ==========================================================
        EFECTO 7 — Doble Borde Expansivo
        // Hallazgo clave: primero arranca el borde interno,
            y poco después el externo, para simular un pulso continuo.
        Se invierte el comportamiento: los bordes se expanden en
        bucle SIEMPRE y desaparecen (se ocultan) al hacer hover.
        ========================================================== */
    .aku-cta-fx-double-border {
        position: relative;
    }

    .aku-cta-fx-double-border::before,
    .aku-cta-fx-double-border::after {
        content: "";
        position: absolute;
        border-radius: 0.6rem;
        border: 2px solid color-mix(in srgb, var(--aku-cta-accent, #00e5ff) 50%, transparent);
        opacity: 0;
        pointer-events: none;
        z-index: 0;
    }

    .aku-cta-fx-double-border::before {
        inset: -2px;
        animation: aku-cta-fx-expand-inner 2.4s ease-out infinite;
    }

    .aku-cta-fx-double-border::after {
        inset: -6px;
        border-color: color-mix(in srgb, var(--aku-cta-accent, #00e5ff) 25%, transparent);
        animation: aku-cta-fx-expand-outer 2.4s ease-out infinite;
        animation-delay: 1.2s;
    }

    .aku-cta-fx-double-border:hover::before,
    .aku-cta-fx-double-border:hover::after {
        animation: none;
        opacity: 0;
    }

    @keyframes aku-cta-fx-expand-inner {
        0% {
            opacity: 0;
            inset: -2px;
        }

        20% {
            opacity: 0.9;
        }

        100% {
            opacity: 0;
            inset: -16px;
        }
    }

    @keyframes aku-cta-fx-expand-outer {
        0% {
            opacity: 0;
            inset: -6px;
        }

        25% {
            opacity: 0.9;
        }

        100% {
            opacity: 0;
            inset: -24px;
        }
    }

    /* ==========================================================
        EFECTO 8 — Parpadeo de Energía
        ========================================================== */
    .aku-cta-fx-parpadeo {
        animation: aku-cta-fx-energy-flicker 3s ease-in-out infinite;
    }

    @keyframes aku-cta-fx-energy-flicker {

        0%,
        88%,
        100% {
            opacity: 1;
        }

        89% {
            opacity: 0.2;
        }

        90% {
            opacity: 1;
        }

        91% {
            opacity: 0.15;
        }

        92% {
            opacity: 0.9;
        }

        93% {
            opacity: 1;
        }
    }

    /* ==========================================================
        EFECTO 9 — Magnetic Tilt (perspectiva 3D con el cursor)
        ========================================================== */
    .aku-cta-fx-magnetic {
        transform-style: preserve-3d;
        perspective: 400px;
        transition: box-shadow 0.2s ease;
    }

    .aku-cta-fx-magnetic:hover {
        box-shadow:
            0 8px 24px rgba(0, 0, 0, 0.3),
            0 0 20px color-mix(in srgb, var(--aku-cta-accent, #00e5ff) 45%, transparent);
    }

    /* ============================================================
   BOTÓN VOLVER ARRIBA
   ============================================================ */
    #back-to-top-btn {
        position: fixed;
        bottom: max(1rem, env(safe-area-inset-bottom));
        left: 50%;
        z-index: 9990;
        width: 3rem;
        height: 3rem;
        padding: 0;
        border: 1px solid rgba(181, 74, 222, 0.45);
        border-radius: 50%;
        color: var(--aku-texto-secundario);
        background-color: rgba(21, 21, 27, 0.88);
        box-shadow: 0 0.4rem 0.8rem rgba(0, 0, 0, 0.35);
        font-family: inherit;
        font-size: 1rem;
        line-height: 1;
        cursor: pointer;
        transform: translateX(-50%);
        transition: background-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
    }

    #back-to-top-btn:hover,
    #back-to-top-btn:focus-visible {
        border-color: var(--aku-morado-claro);
        color: var(--aku-texto);
        background-color: rgba(49, 22, 74, 0.95);
        box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.4), 0 0 10px rgba(147, 0, 211, 0.25);
        transform: translateX(-50%) scale(1.06);
    }

    #back-to-top-btn:focus-visible {
        outline: 3px solid var(--aku-cian);
        outline-offset: 3px;
    }


    /* ============================================================
   FOOTER AKUTANGULO
   ============================================================ */
    .footer-akutangulo {
        position: relative;
        overflow: hidden;
        color: var(--aku-texto);
        background: radial-gradient(circle at 10% 12%, rgba(147, 0, 211, 0.11), transparent 26rem), var(--aku-fondo);
    }

    .footer-akutangulo p,
    .footer-akutangulo h2,
    .footer-akutangulo ul,
    .footer-akutangulo address {
        margin-top: 0;
    }

    .footer-akutangulo a {
        color: var(--aku-texto);
        text-decoration: none;
    }

    .footer-akutangulo a:focus-visible {
        outline: 2px solid var(--aku-cian);
        outline-offset: 5px;
    }

    .footer-acento {
        height: 4px;
        background: linear-gradient(90deg, var(--aku-morado), var(--aku-azul), var(--aku-cian), var(--aku-morado));
        background-size: 200% 100%;
        box-shadow: 0 0 16px var(--aku-glow-fuerte);
        animation: aku-acento-flujo 6s linear infinite, aku-acento-brillo 4s ease-in-out infinite;
    }

    @keyframes aku-acento-flujo {
        0% {
            background-position: 0% 50%;
        }

        100% {
            background-position: 200% 50%;
        }
    }

    @keyframes aku-acento-brillo {

        0%,
        100% {
            box-shadow: 0 0 10px rgba(147, 0, 211, 0.45);
        }

        50% {
            box-shadow: 0 0 24px rgba(0, 194, 255, 0.65);
        }
    }

    .footer-contenedor {
        display: grid;
        grid-template-columns: minmax(280px, 1.2fr) minmax(180px, 0.75fr) minmax(180px, 0.75fr) minmax(170px, 0.7fr);
        grid-template-areas: "identidad ia web navegacion";
        gap: clamp(2.5rem, 4vw, 5.5rem);
        width: min(1400px, calc(100% - 3rem));
        margin: 0 auto;
        padding: clamp(3rem, 6vw, 5.5rem) 0 clamp(2.75rem, 5vw, 4.5rem);
    }

    .footer-contenedor>*,
    .footer-canales>* {
        min-width: 0;
    }

    .footer-akutangulo h2 {
        margin-bottom: 1rem;
        padding: 0;
        color: var(--aku-morado-claro);
        font-size: 1.35rem;
        font-weight: normal;
        line-height: 1.25;
        text-align: left;
        text-shadow: none;
        -webkit-text-stroke: 0;
        animation: none;
    }

    .footer-akutangulo p {
        margin-bottom: 0;
        color: var(--aku-texto-secundario);
        font-size: 0.95rem;
        line-height: 1.7;
    }

    .footer-identidad {
        grid-area: identidad;
    }

    .footer-marca {
        display: flex;
        align-items: center;
        gap: 1rem;
        margin-bottom: 1.4rem;
    }

    .footer-logo {
        display: block;
        flex: 0 0 68px;
        height: 78px;
    }

    .footer-logo svg {
        display: block;
        width: 100%;
        height: 100%;
        overflow: visible;
    }

    .animacion-logo-svg-akutangulo {
        fill: transparent;
        stroke: var(--aku-morado-claro);
        stroke-width: 5;
        stroke-dasharray: 3000;
        stroke-dashoffset: 3000;
        animation: aku-logo-trazo 3.5s ease-in-out forwards, aku-logo-relleno 1.5s ease-in-out 2.4s forwards, aku-logo-brillo 7s ease-in-out 3.8s infinite;
    }

    .base-logo-svg-akutangulo {
        fill: rgba(147, 0, 211, 0.18);
        stroke: none;
    }

    @keyframes aku-logo-trazo {
        to {
            stroke-dashoffset: 0;
        }
    }

    @keyframes aku-logo-relleno {
        0% {
            fill: transparent;
        }

        55% {
            fill: #fbf8fb;
        }

        100% {
            fill: var(--aku-morado);
        }
    }

    @keyframes aku-logo-brillo {

        0%,
        100% {
            filter: drop-shadow(0 0 2px rgba(147, 0, 211, 0.35));
        }

        50% {
            filter: drop-shadow(0 0 11px rgba(181, 74, 222, 0.9));
        }
    }

    #footer-marca-heading {
        margin-bottom: 0.15rem;
        font-size: 2rem;
        text-shadow: 0 0 14px var(--aku-glow-fuerte);
    }

    .footer-akutangulo .footer-lema {
        color: var(--aku-texto);
        font-size: 0.9rem;
        line-height: 1.4;
    }

    .footer-descripcion {
        max-width: 40ch;
    }

    .footer-descripcion strong {
        color: var(--aku-texto);
    }

    .footer-akutangulo .footer-autor {
        margin-top: 0.9rem;
        color: var(--aku-texto);
    }

    .footer-autor strong {
        color: var(--aku-morado-claro);
    }

    .footer-identidad address {
        margin: 1.25rem 0 0;
        color: var(--aku-texto-secundario);
        font-size: 0.9rem;
        font-style: normal;
        line-height: 1.6;
    }

    .footer-identidad address>i {
        margin-right: 0.35rem;
        color: var(--aku-cian);
    }

    .footer-identidad address small {
        display: block;
        margin-left: 1.25rem;
        color: #898998;
    }

    .footer-ia {
        grid-area: ia;
    }

    .footer-web {
        grid-area: web;
    }

    .footer-navegacion {
        grid-area: navegacion;
    }

    .footer-columna ul {
        padding: 0;
    }

    .footer-columna li+li {
        margin-top: 0.8rem;
    }

    .footer-columna a {
        display: inline-block;
        color: var(--aku-texto-secundario);
        font-size: 0.92rem;
        line-height: 1.45;
        transition: color 0.25s ease, transform 0.25s ease;
    }

    .footer-columna a::before {
        content: "›";
        display: inline-block;
        margin-right: 0.45rem;
        color: var(--aku-morado-claro);
        transition: transform 0.25s ease;
    }

    .footer-columna a:hover {
        color: var(--aku-cian);
        transform: translateX(3px);
    }

    .footer-columna a:hover::before {
        transform: translateX(2px);
    }

    /* Canales oficiales */
    .footer-canales {
        display: grid;
        grid-template-columns: minmax(230px, 0.6fr) minmax(0, 1.4fr);
        align-items: center;
        gap: 2rem;
        padding: 2.35rem max(1.5rem, calc((100% - 1400px) / 2));
        border-top: 1px solid var(--aku-borde);
        border-bottom: 1px solid var(--aku-borde);
        background: rgba(5, 5, 8, 0.72);
    }

    .footer-canales h2 {
        margin-bottom: 0.35rem;
    }

    .redes-sociales-akutangulo {
        display: grid;
        grid-template-columns: repeat(7, 60px);
        justify-content: end;
        gap: 1.5rem;
        padding: 0.75rem 2.5rem 1rem 0;
    }

    .redes-sociales-akutangulo li {
        position: relative;
        width: 60px;
        height: 60px;
        font-size: 1.8rem;
        isolation: isolate;
    }

    .redes-sociales-akutangulo li:hover {
        z-index: 10;
    }

    .redes-sociales-akutangulo li::before,
    .redes-sociales-akutangulo li::after {
        position: absolute;
        z-index: 0;
        content: "";
        background: var(--aku-morado-oscuro);
    }

    .redes-sociales-akutangulo li::before {
        bottom: -10px;
        left: 0;
        width: 100%;
        height: 10px;
        transform: skewX(-45deg);
        transform-origin: top;
    }

    .redes-sociales-akutangulo li::after {
        top: 0;
        left: -10px;
        width: 10px;
        height: 100%;
        transform: skewY(-45deg);
        transform-origin: right;
    }

    .redes-sociales-akutangulo a {
        position: relative;
        z-index: 1;
        display: block;
        width: 100%;
        height: 100%;
    }

    .redes-sociales-akutangulo a span {
        position: absolute;
        inset: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        background: var(--aku-morado);
        transition: opacity 0.4s ease, transform 0.4s ease, background-color 0.4s ease;
    }

    .redes-sociales-akutangulo li:hover a span:nth-child(1) {
        opacity: 0.2;
        transform: translate(0, 0);
    }

    .redes-sociales-akutangulo li:hover a span:nth-child(2) {
        opacity: 0.4;
        transform: translate(8px, -8px);
    }

    .redes-sociales-akutangulo li:hover a span:nth-child(3) {
        opacity: 0.6;
        transform: translate(16px, -16px);
    }

    .redes-sociales-akutangulo li:hover a span:nth-child(4) {
        opacity: 0.8;
        transform: translate(24px, -24px);
    }

    .redes-sociales-akutangulo li:hover a span:nth-child(5) {
        opacity: 1;
        transform: translate(32px, -32px);
    }

    .redes-sociales-akutangulo .facebook {
        --red-social: var(--facebook);
    }

    .redes-sociales-akutangulo .twitter {
        --red-social: var(--x-twitter);
    }

    .redes-sociales-akutangulo .github {
        --red-social: var(--github);
    }

    .redes-sociales-akutangulo .linkedin {
        --red-social: var(--linkedin);
    }

    .redes-sociales-akutangulo .telegram {
        --red-social: var(--telegram);
    }

    .redes-sociales-akutangulo .whatsapp {
        --red-social: var(--whatsapp);
    }

    .redes-sociales-akutangulo .google {
        --red-social: var(--google);
    }

    .redes-sociales-akutangulo li:hover a span {
        background: var(--red-social);
    }

    /* Botones contacto flip3d */
    .footer-contacto {
        width: min(1400px, calc(100% - 3rem));
        margin: 0 auto;
        padding: clamp(3rem, 5vw, 4.5rem) 0;
    }

    .footer-contacto>h2,
    .footer-contacto>p {
        text-align: center;
    }

    .footer-contacto>p {
        margin-top: -0.35rem;
    }

    .contenedor-botones-akutangulo {
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: clamp(1rem, 2vw, 2rem);
        margin: 0 auto;
        padding: 1.5rem 0 0;
    }

    .contenedor-botones-akutangulo>a {
        display: flex;
        align-items: center;
        justify-content: center;
        min-width: 0;
        min-height: 145px;
    }

    .boton-akutangulo {
        position: relative;
        display: block;
        width: min(100%, 280px);
        height: 50px;
        margin: 0 auto;
        cursor: pointer;
        perspective: 1000px;
    }

    .boton-akutangulo:active {
        transform: translateY(1px) scale(0.98);
    }

    .boton-akutangulo.pulso {
        border-radius: 1px;
        animation: aku-pulso 2s infinite;
    }

    .boton-akutangulo.pulso:hover {
        animation: none;
    }

    @keyframes aku-pulso {
        0% {
            box-shadow: 0 0 0 0 rgba(147, 0, 211, 0.5);
        }

        70%,
        100% {
            box-shadow: 0 0 0 15px rgba(147, 0, 211, 0);
        }
    }

    .boton-akutangulo .flipper3d {
        position: relative;
        width: 100%;
        height: 100%;
        transform-style: preserve-3d;
        transform-origin: 100% 22.5px;
        transition: transform 0.5s ease-in-out;
    }

    .boton-aku {
        position: absolute;
        inset: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 5px;
        background: linear-gradient(90deg, var(--aku-morado), var(--aku-azul), var(--aku-cian));
        background-size: 200% 100%;
        backface-visibility: hidden;
        box-shadow: 1px 2px 4px -1px rgba(60, 60, 60, 0.64);
        animation: aku-gradiente 5s ease infinite;
    }

    @keyframes aku-gradiente {

        0%,
        100% {
            background-position: 0 50%;
        }

        50% {
            background-position: 100% 50%;
        }
    }

    .boton-akutangulo .front {
        transform: translateZ(22.5px);
    }

    .boton-akutangulo .back {
        flex-direction: column;
        color: #fff;
        font-size: 0.85rem;
        line-height: 1.4;
        text-align: center;
        text-transform: uppercase;
        overflow-wrap: anywhere;
    }

    .boton-akutangulo-flip3d-up .back {
        transform: rotateX(90deg) translateZ(22.5px);
    }

    .boton-akutangulo-flip3d-up:hover .flipper3d,
    .contenedor-botones-akutangulo>a:focus-visible .boton-akutangulo-flip3d-up .flipper3d {
        transform: rotateX(-90deg);
    }

    .boton-akutangulo-flip3d-down .back {
        transform: rotateX(90deg) rotateZ(180deg) rotateY(180deg) translateZ(22.5px);
    }

    .boton-akutangulo-flip3d-down:hover .flipper3d,
    .contenedor-botones-akutangulo>a:focus-visible .boton-akutangulo-flip3d-down .flipper3d {
        transform: rotateX(90deg);
    }

    .iconos-botones-sociales {
        display: block;
        margin: 0 0 5px;
        color: var(--aku-cian);
        font-size: 7em;
        line-height: 1;
        -webkit-text-stroke: 1px rgba(245, 247, 255, 0.3);
    }

    .iconos-botones-sociales.whatsapp {
        color: var(--whatsapp);
    }

    .iconos-botones-sociales.telegram {
        color: var(--telegram);
    }

    .footer-cierre {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 2rem;
        padding: 1.5rem max(1.5rem, calc((100% - 1400px) / 2)) 2rem;
        border-top: 1px solid var(--aku-borde);
        background: rgba(8, 8, 11, 0.6);
    }

    .footer-legal {
        display: flex;
        flex-wrap: wrap;
        gap: 0.7rem 1.25rem;
    }

    .footer-legal a {
        color: #a7a7b4;
        font-size: 0.82rem;
        text-decoration: underline;
        text-decoration-color: rgba(181, 74, 222, 0.45);
        text-underline-offset: 0.25rem;
    }

    .footer-legal a:hover {
        color: var(--aku-cian);
    }

    .footer-copyright {
        text-align: right;
    }

    .footer-akutangulo .footer-copyright p {
        color: #8f8f9d;
        font-size: 0.78rem;
        line-height: 1.55;
    }

    .footer-copyright span[aria-label="amor"] {
        color: var(--aku-rosa);
    }

    .footer-akutangulo .marca-tipografica-akutangulo {
        color: var(--aku-morado-claro);
        font-size: 1.02rem;
        font-weight: normal;
        text-shadow: 0 0 9px rgba(147, 0, 211, 0.55);
    }

    /* ============================================================
   RESPONSIVE
   ============================================================ */
    @media (max-width: 1100px) {
        .footer-contenedor {
            grid-template-columns: repeat(2, minmax(0, 1fr));
            grid-template-areas:
                "identidad identidad"
                "ia web"
                "navegacion navegacion";
        }

        .redes-sociales-akutangulo {
            grid-template-columns: repeat(4, 60px);
            justify-content: center;
            padding-right: 0;
        }

        .contenedor-botones-akutangulo {
            grid-template-columns: repeat(2, minmax(0, 1fr));
        }
    }

    @media (max-width: 1120px) {
        #akutangulo-nav {
            padding: 0.8rem 1.25rem;
        }

        .icono-hamburguesa {
            display: flex;
        }

        .items-menu-principal {
            position: fixed;
            top: 0;
            right: 0;
            width: 80vw;
            max-width: 320px;
            height: 100vh;
            height: 100dvh;
            z-index: 99;
            flex-direction: column;
            align-items: flex-start;
            justify-content: flex-start;
            padding: 5rem 1.75rem 2rem;
            gap: 1.25rem;
            background: var(--nav-dropdown-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-left: 1px solid var(--plane-edge);
            box-shadow: -10px 0 30px rgba(0, 0, 0, 0.6);
            transform: translateX(100%);
            visibility: hidden;
            transition: transform 350ms var(--ease), visibility 350ms var(--ease);
            overflow-y: auto;
        }

        #toggle-menu-principal:checked~.items-menu-principal {
            transform: translateX(0);
            visibility: visible;
        }

        #toggle-menu-principal:checked+.icono-hamburguesa span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        #toggle-menu-principal:checked+.icono-hamburguesa span:nth-child(2) {
            opacity: 0;
        }

        #toggle-menu-principal:checked+.icono-hamburguesa span:nth-child(3) {
            transform: translateY(-9px) rotate(-45deg);
        }

        .submenu-principal {
            width: 100%;
            flex-wrap: wrap;
        }

        .submenu-principal a {
            font-size: 1.1rem;
            padding: 0.5rem 0;
        }

        .enlace-submenu-principal {
            flex: 0 0 auto;
            margin-left: 0.35rem;
            padding: 0.5rem 0.35rem;
        }

        .items-submenu-principal {
            position: static;
            width: calc(100% - 0.5rem);
            min-width: 0;
            box-shadow: none;
            background: rgba(0, 0, 0, 0.2);
            border: none;
            border-left: 2px solid var(--toggle-accent);
            border-radius: 0 6px 6px 0;
            margin: 0.5rem 0 0 0.5rem;
            padding: 0.35rem 0 0.45rem 0.65rem;
            display: none;
            opacity: 1;
            visibility: visible;
            transform: none;
        }

        .items-submenu-principal .submenu-principal>a {
            padding: 0.6rem 0.75rem;
        }

        .toggle-submenu-principal:checked~.items-submenu-principal {
            display: block;
        }

        .menu-toggle-item {
            order: 2;
            margin-left: auto;
            z-index: 101;
            opacity: 0;
            visibility: hidden;
            transition: opacity 220ms var(--ease), visibility 220ms var(--ease);
        }

        #toggle-menu-principal:checked~.menu-toggle-item {
            opacity: 1;
            visibility: visible;
        }

        .icono-hamburguesa {
            order: 3;
        }

        .atmosphere-toggle {
            width: 3.8rem;
            height: 2.3rem;
        }
    }

    @media (max-width: 820px) {
        .footer-canales {
            grid-template-columns: 1fr;
        }

        .footer-canales-texto,
        .footer-canales h2 {
            text-align: center;
        }
    }

    @media (max-width: 768px) {
        h1 {
            font-size: 2.2rem;
        }

        h2 {
            font-size: 2rem;
        }

        h3 {
            font-size: 1.7rem;
        }

        .aku-container-logo {
            min-height: 120px;
        }

        .logo-akutangulo-portada {
            font-size: clamp(4rem, 10vw, 10rem);
        }
    }

    @media (max-width: 620px) {
        .footer-contenedor {
            grid-template-columns: 1fr;
            grid-template-areas:
                "identidad"
                "ia"
                "web"
                "navegacion";
            gap: 2.5rem;
            width: min(calc(100% - 2rem), 580px);
            padding: 3rem 0;
        }

        .ak-accesos-rapidos_lista {
            gap: 0.4rem;
            padding: 0.5rem 1rem;
        }

        .footer-canales {
            padding: 2.5rem 1rem 3rem;
        }

        .footer-contacto {
            width: min(calc(100% - 2rem), 580px);
            padding: 3rem 0;
        }

        .contenedor-botones-akutangulo {
            grid-template-columns: 1fr;
            gap: 0.4rem;
            padding-top: 1rem;
        }

        .contenedor-botones-akutangulo>a {
            min-height: 140px;
        }

        .footer-cierre {
            flex-direction: column;
            align-items: flex-start;
            padding: 1.5rem 1rem 2rem;
        }

        .footer-copyright {
            text-align: left;
        }
    }

    @media (max-width: 390px) {
        .footer-marca {
            align-items: flex-start;
        }

        #footer-marca-heading {
            font-size: 1.75rem;
        }

        .redes-sociales-akutangulo {
            grid-template-columns: repeat(3, 60px);
            gap: 1.45rem;
        }
    }

    /* ============================================================
   ACCESIBILIDAD: REDUCED MOTION
   ============================================================ */
    @media (prefers-reduced-motion: reduce) {
        html {
            scroll-behavior: auto;
        }

        /* El selector universal apaga todas las animaciones y transiciones */
        *,
        *::before,
        *::after {
            animation-duration: 0.01ms !important;
            animation-iteration-count: 1 !important;
            scroll-behavior: auto !important;
            transition-duration: 0.01ms !important;
        }

        /* Poses estáticas finales para los elementos animados */
        #back-to-top-btn:hover,
        #back-to-top-btn:focus-visible {
            transform: translateX(-50%);
        }

        .aku-cta:hover,
        .aku-cta:focus-visible,
        .aku-cta-fx-levitar:hover,
        .aku-cta-fx-magnetic:hover {
            transform: none;
        }

        #aku {
            transform: rotate3d(1, 1, 0, 18deg);
        }

        .ak-header-hero::after {
            background: magenta;
            opacity: 0.28;
        }

        .logo-akutangulo-portada {
            text-shadow: 0 0 24px magenta;
        }

        .animacion-logo-svg-akutangulo {
            fill: var(--aku-morado);
            stroke-dashoffset: 0;
        }
    }

    /* Keyframes header */
    @keyframes aku-logo-balanceo {

        0%,
        100% {
            transform: rotate3d(1, 1, 0, 40deg);
        }

        25% {
            transform: rotate3d(-1, 1, 0, 40deg);
        }

        50% {
            transform: rotate3d(-1, -1, 0, 40deg);
        }

        75% {
            transform: rotate3d(1, -1, 0, 40deg);
        }
    }

    @keyframes aku-ambiente-opacidad {

        0%,
        100% {
            opacity: 0.28;
        }

        25% {
            opacity: 0.22;
        }

        50% {
            opacity: 0.3;
        }

        75% {
            opacity: 0.28;
        }
    }

    @keyframes aku-malla-borde-color {

        0%,
        100% {
            stroke: rgba(255, 105, 180, 0.38);
        }

        25% {
            stroke: rgba(126, 255, 92, 0.3);
        }

        50% {
            stroke: rgba(255, 88, 238, 0.34);
        }

        75% {
            stroke: rgba(139, 118, 255, 0.32);
        }
    }

    @keyframes aku-particula-color {

        0%,
        100% {
            fill: rgba(255, 105, 180, 0.52);
        }

        25% {
            fill: rgba(126, 255, 92, 0.45);
        }

        50% {
            fill: rgba(255, 88, 238, 0.5);
        }

        75% {
            fill: rgba(139, 118, 255, 0.48);
        }
    }

    @keyframes aku-particula-opacidad {

        0%,
        100% {
            opacity: 0.24;
        }

        50% {
            opacity: 0.5;
        }
    }

    /* ============================================================
   ANIMACIÓN MERMAID
   ============================================================ */

    .mermaid {
        background: var(--aku-magic-mermaid-bg);
        padding: 20px;
        border-radius: 10px;
        overflow: hidden;
    }

    .mermaid svg {
        max-width: 100%;
        height: auto;
    }

    .mermaid .flowchart-link {
        stroke-dasharray: 8 7 !important;
        stroke-dashoffset: 30;
        animation: data-flow 1.2s linear infinite;
    }

    .mermaid svg marker path {
        fill: var(--aku-morado-claro) !important;
        animation: arrow-pulse 0.8s ease-in-out infinite;
    }

    @keyframes data-flow {
        to {
            stroke-dashoffset: 0;
        }
    }

    @keyframes arrow-pulse {
        50% {
            opacity: 0.65;
        }
    }

    /* ============================================================
   DIV MAGICO AKUTANGULO
   Reglas copiadas de p/div-magic-akutangulo.html (fuente de verdad)
   ============================================================ */

    /* === Contenedor general === */
    .aku-magic {
        width: min(100%, var(--aku-magic-max-width));
        margin-inline: auto;
    }

    /* === Cada bloque === */
    .aku-magic-block {
        padding: var(--aku-magic-block-padding);

        background: var(--aku-magic-surface);
        border: var(--aku-magic-border-width) solid var(--aku-magic-border-color);
        border-radius: var(--aku-magic-radius);
        box-shadow: 0 0.75rem 2rem rgba(0, 0, 0, 0.22);
    }

    .aku-magic-block+.aku-magic-block {
        margin-top: var(--aku-magic-block-spacing);
    }

    /* === Título superior o dentro de la columna de texto === */
    .aku-magic-title {
        margin: 0 0 var(--aku-magic-gap);

        text-wrap: balance;
    }

    /* === Distribución principal === */
    .aku-magic-layout {
        display: grid;
        grid-template-columns:
            minmax(0, 1fr) minmax(0, 1fr);

        grid-template-areas: "copy media";

        gap: var(--aku-magic-gap);
        align-items: stretch;
    }

    /* Alternancia de posición texto/media en bloques pares (feature por diseño) */
    .aku-magic-block:nth-of-type(even) .aku-magic-layout {
        grid-template-areas: "media copy";
    }

    /* === Columna de texto === */
    .aku-magic-copy {
        grid-area: copy;

        min-width: 0;
        width: 100%;
        max-inline-size: var(--aku-magic-measure);
        margin-inline: auto;

        color: var(--aku-texto-secundario);
        line-height: var(--aku-magic-line-height);
    }

    .aku-magic-copy>*:first-child {
        margin-top: 0;
    }

    .aku-magic-copy>*:last-child {
        margin-bottom: 0;
    }

    .aku-magic-copy strong {
        color: var(--aku-texto);
    }

    .aku-magic-copy ol {
        padding-left: 1.25rem;
    }

    .aku-magic-copy ol li+li {
        margin-top: 0.5em;
    }

    /* === Botones básicos === */
    .aku-magic-actions {
        display: flex;
        flex-wrap: wrap;

        gap: 0.75rem;
        margin-top: 1rem;
    }

    /* === Columna multimedia === */
    .aku-magic-media {
        grid-area: media;

        position: relative;

        min-width: 0;
        overflow: hidden;

        background: var(--aku-magic-media-bg);
        border: 1px solid var(--aku-magic-border-color);
        border-radius: 0.65rem;
    }

    .aku-magic-media-content {
        position: absolute;
        inset: 0;

        display: grid;
        place-items: center;
    }

    .aku-magic-media-content>* {
        max-width: 100%;
        max-height: 100%;
    }

    /* === Contenido horizontal === */
    .aku-magic-media--horizontal .aku-magic-media-content>img,
    .aku-magic-media--horizontal .aku-magic-media-content>video,
    .aku-magic-media--horizontal .aku-magic-media-content>svg,
    .aku-magic-media--horizontal .aku-magic-media-content>canvas {
        width: 100%;
        height: 100%;

        object-fit: cover;
    }

    /* === Contenido vertical === */
    .aku-magic-media--vertical .aku-magic-media-content>img,
    .aku-magic-media--vertical .aku-magic-media-content>video,
    .aku-magic-media--vertical .aku-magic-media-content>svg,
    .aku-magic-media--vertical .aku-magic-media-content>canvas {
        width: 100%;
        height: 100%;

        object-fit: contain;
    }

    /* === Fotografía histórica con contexto editorial ===
       Uso: figure > img + figcaption dentro de .aku-magic-media-content.
       El pie se superpone sin alterar el encuadre ni la altura del media. */
    .aku-magic-media--foto-historica .aku-magic-media-content>figure {
        position: relative;

        display: grid;
        place-items: center;

        width: 100%;
        height: 100%;
        margin: 0;
        overflow: hidden;
    }

    .aku-magic-media--foto-historica .aku-magic-media-content>figure>img {
        width: 100%;
        height: 100%;

        object-fit: cover;
        object-position: center center;
    }

    .aku-magic-media--foto-historica .aku-magic-media-content>figure>figcaption {
        position: absolute;
        right: 0;
        bottom: 0;
        left: 0;

        padding: 2rem 1rem 0.85rem;

        color: #ffffff;
        font-size: clamp(0.75rem, 1.5vw, 0.9rem);
        line-height: 1.35;
        text-align: left;
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);

        background: linear-gradient(to bottom, transparent, rgba(3, 8, 18, 0.9));
    }

    /* === Iframes === */
    .aku-magic-media iframe {
        width: 100%;
        height: 100%;

        border: 0;
    }

    /* === Casos de estudio: previews web, tours y fichas de proyecto === */
    .aku-caso-inmersivo .aku-magic-layout {
        grid-template-columns: minmax(16rem, 0.72fr) minmax(0, 1.28fr);
    }

    .aku-caso-inmersivo .aku-magic-media {
        min-height: clamp(22rem, 42vw, 34rem);
    }

    .aku-caso-inmersivo .aku-magic-copy {
        align-self: center;
    }

    .aku-caso-pedidos .aku-magic-media--html .aku-magic-media-content {
        padding: clamp(1.25rem, 3vw, 2.25rem);
    }

    .aku-caso-pedidos .aku-magic-media--html .aku-caso-pedidos__ficha {
        display: grid;
        gap: 1rem;
        width: min(100%, 28rem);
        height: auto;
        max-height: 100%;
        padding: clamp(1.25rem, 3vw, 2rem);
        border: 1px solid rgba(0, 194, 255, 0.28);
        border-radius: 0.85rem;
        background:
            linear-gradient(145deg, rgba(0, 194, 255, 0.12), transparent 62%),
            rgba(5, 9, 16, 0.72);
        box-shadow: 0 1rem 2.5rem rgba(0, 0, 0, 0.28);
    }

    .aku-caso-pedidos__kicker {
        margin: 0;
        color: var(--aku-cian);
        font-size: 0.78rem;
        font-weight: 800;
        letter-spacing: 0.14em;
        text-transform: uppercase;
    }

    .aku-caso-pedidos__ficha h3 {
        margin: 0;
        padding: 0;
        color: var(--aku-texto);
        font-family: "Noto Sans", sans-serif;
        font-size: clamp(1.2rem, 2.5vw, 1.65rem);
        font-weight: 800;
        line-height: 1.2;
        text-align: left;
        -webkit-text-stroke: 0;
        text-shadow: none;
        animation: none;
    }

    .aku-caso-pedidos__datos {
        display: grid;
        gap: 0.7rem;
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .aku-caso-pedidos__datos li {
        display: flex;
        align-items: flex-start;
        gap: 0.65rem;
        margin: 0;
        padding: 0;
        color: var(--aku-texto-secundario);
        font-size: 0.95rem;
        line-height: 1.45;
    }

    .aku-caso-pedidos__datos li::before {
        content: none;
    }

    .aku-caso-pedidos__datos i {
        width: 1.1rem;
        margin-top: 0.16rem;
        color: var(--aku-cian);
        text-align: center;
    }

    .aku-caso-pedidos__datos a {
        color: var(--aku-texto);
        text-decoration-color: var(--aku-cian);
        text-underline-offset: 0.2em;
    }

    .aku-caso-pedidos__datos li span,
    .aku-caso-pedidos__datos li a {
        min-width: 0;
        overflow-wrap: anywhere;
    }

    .aku-caso-tecnologia {
        width: min(100%, var(--aku-magic-max-width));
        margin: var(--aku-magic-block-spacing) auto 0;
        padding: clamp(1.25rem, 3vw, 2.25rem);
        border: 1px solid var(--aku-borde);
        border-radius: var(--aku-magic-radius);
        background:
            radial-gradient(circle at 100% 0%, rgba(0, 194, 255, 0.12), transparent 34%),
            var(--aku-superficie);
        box-shadow: 0 0.75rem 2rem rgba(0, 0, 0, 0.22);
    }

    .aku-caso-tecnologia__intro {
        max-width: 72ch;
        margin: 0 auto 1.75rem;
        color: var(--aku-texto-secundario);
        line-height: var(--aku-magic-line-height);
        text-align: center;
    }

    .aku-caso-tecnologia__rejilla {
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 1rem;
    }

    .aku-caso-tecnologia__item {
        padding: 1.1rem;
        border: 1px solid rgba(181, 74, 222, 0.26);
        border-radius: 0.75rem;
        background: rgba(5, 9, 16, 0.35);
    }

    .aku-caso-tecnologia__item i {
        color: var(--aku-cian);
        font-size: 1.25rem;
    }

    .aku-caso-tecnologia__item h3 {
        margin: 0.65rem 0 0.45rem;
        padding: 0;
        color: var(--aku-texto);
        font-family: "Noto Sans", sans-serif;
        font-size: 1rem;
        font-weight: 800;
        line-height: 1.25;
        text-align: left;
        -webkit-text-stroke: 0;
        text-shadow: none;
        animation: none;
    }

    .aku-caso-tecnologia__item p {
        margin: 0;
        color: var(--aku-texto-secundario);
        font-size: 0.92rem;
        line-height: 1.55;
    }

    @media (max-width: 900px) {
        .aku-caso-inmersivo .aku-magic-layout {
            grid-template-columns: 1fr;
        }

        .aku-caso-inmersivo .aku-magic-media {
            min-height: clamp(18rem, 80vw, 28rem);
        }

        .aku-caso-pedidos .aku-magic-media,
        .aku-caso-pedidos .aku-magic-media--html {
            min-block-size: auto;
        }

        .aku-caso-pedidos .aku-magic-media--html .aku-magic-media-content {
            position: relative;
            height: auto;
            padding: clamp(1.25rem, 4vw, 2rem);
            overflow: visible;
        }

        .aku-caso-pedidos .aku-magic-media--html .aku-caso-pedidos__ficha {
            max-height: none;
        }

        .aku-caso-tecnologia__rejilla {
            grid-template-columns: repeat(2, minmax(0, 1fr));
        }
    }

    @media (max-width: 560px) {
        .aku-caso-tecnologia__rejilla {
            grid-template-columns: 1fr;
        }
    }

    /* === Contenido HTML libre (Mermaid, SVG, Gráficos) === */
    .aku-magic-media--html {
        cursor: pointer;
    }

    .aku-magic-media--html .aku-magic-media-content {
        display: flex;
        align-items: center;
        justify-content: center;

        width: 100%;
        height: 100%;
        padding: 1rem;

        overflow: hidden;
    }

    .aku-magic-media--html .aku-magic-media-content>*,
    .aku-magic-media--html figure,
    .aku-magic-media--html .mermaid {
        display: flex;
        align-items: center;
        justify-content: center;

        width: 100%;
        height: 100%;
        margin: 0;
        padding: 0;
    }

    /* OJO: Estiramiento SOLO dentro del área de contenido, NO al botón */
    .aku-magic-media--html .aku-magic-media-content svg,
    .aku-magic-media--html .aku-magic-media-content canvas,
    .aku-magic-modal-body svg,
    .aku-magic-modal-body canvas {
        width: 100% !important;
        height: 100% !important;
        max-width: 100% !important;
        max-height: 100% !important;

        object-fit: contain;
    }

    /* === Fondo transparente para Mermaid === */
    .aku-magic-media--html .mermaid,
    .aku-magic-media--html .mermaid svg,
    .aku-magic-media--html .mermaid svg>rect,
    .aku-magic-media--html .mermaid .background {
        background: transparent !important;
        fill: transparent !important;
    }

    /* === Cajas y nodos de Mermaid con bordes redondeados y resplandor === */
    .aku-magic-media--html .mermaid .node rect,
    .aku-magic-media--html .mermaid .node polygon {
        rx: 8px !important;
        ry: 8px !important;
        filter: drop-shadow(0px 4px 12px rgba(0, 0, 0, 0.5));
    }

    /* === Tipografía nítida en los nodos === */
    .aku-magic-media--html .mermaid .node .label {
        fill: #f8fafc !important;
    }

    /* === Conectores y flechas con resplandor neón === */
    .aku-magic-media--html .mermaid .edgePath .path {
        stroke-width: 2px !important;
        filter: drop-shadow(0px 0px 4px rgba(168, 85, 247, 0.4));
    }

    .aku-magic-media--html .mermaid marker {
        fill: #a855f7 !important;
        stroke: #a855f7 !important;
    }

    /* === Botón "Ampliar" accesible y compacto === */
    .aku-magic-zoom-btn {
        position: absolute;
        top: 0.6rem;
        right: 0.6rem;
        z-index: 10;

        display: inline-flex;
        align-items: center;
        gap: 0.4rem;

        padding: 0.4rem 0.75rem;

        font-family: inherit;
        font-size: 0.8rem;
        font-weight: 600;
        color: #ffffff;

        background: var(--aku-magic-zoom-bg);
        border: 1px solid rgba(255, 255, 255, 0.25);
        border-radius: 0.5rem;
        backdrop-filter: blur(8px);

        cursor: pointer;
        user-select: none;
        transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    }

    .aku-magic-zoom-btn:hover {
        background: var(--aku-magic-zoom-bg-hover);
        border-color: var(--aku-morado-claro);
        transform: translateY(-1px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    }

    /* Foco visible claro para navegación por teclado (WCAG AA) */
    .aku-magic-zoom-btn:focus-visible,
    .aku-magic-modal-close:focus-visible {
        outline: 2px solid var(--aku-morado-claro) !important;
        outline-offset: 2px !important;
    }

    /* Tamaño estricto del icono del botón */
    .aku-magic-zoom-btn svg {
        width: 0.95rem !important;
        height: 0.95rem !important;
        max-width: 0.95rem !important;
        max-height: 0.95rem !important;
        flex-shrink: 0;
        fill: currentColor;
    }

    /* === Modal Nativo (<dialog>) Accesible y 100% Responsive === */
    .aku-magic-modal {
        position: fixed;
        inset: 0;

        width: min(92vw, 75rem);
        height: min(88vh, 50rem);
        max-width: 95vw;
        max-height: 90vh;

        margin: auto;
        padding: 1.25rem;

        background: var(--aku-magic-modal-bg);
        border: 1px solid var(--aku-magic-border-color);
        border-radius: 1rem;
        box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.6);
        backdrop-filter: blur(12px);

        color: #f8fafc;
        overflow: hidden;
    }

    .aku-magic-modal::backdrop {
        background: rgba(0, 0, 0, 0.82);
        backdrop-filter: blur(5px);
    }

    .aku-magic-modal[open] {
        display: flex;
        flex-direction: column;
        animation: aku-magic-modal-fade-in 0.25s ease-out;
    }

    @keyframes aku-magic-modal-fade-in {
        from {
            opacity: 0;
            transform: scale(0.96);
        }

        to {
            opacity: 1;
            transform: scale(1);
        }
    }

    .aku-magic-modal-close {
        position: absolute;
        top: 0.75rem;
        right: 0.75rem;
        z-index: 20;

        width: 2.25rem;
        height: 2.25rem;

        display: grid;
        place-items: center;

        font-size: 1.5rem;
        line-height: 1;
        color: #cbd5e1;

        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 50%;

        cursor: pointer;
        transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    }

    .aku-magic-modal-close:hover {
        background: rgba(239, 68, 68, 0.85);
        color: #ffffff;
        transform: scale(1.08);
    }

    .aku-magic-modal-body {
        flex: 1;
        width: 100%;
        height: 100%;

        display: flex;
        align-items: center;
        justify-content: center;

        overflow: auto;
        padding: 0.5rem;
    }

    /* El contenido absoluto del media vuelve a flujo dentro del modal */
    .aku-magic-modal-body figure,
    .aku-magic-modal-body .mermaid,
    .aku-magic-modal-body .aku-magic-media-content {
        position: static;

        width: 100%;
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0;
    }

    /* === Responsive === */
    @media (max-width: 900px) {

        .aku-magic-layout,
        .aku-magic-block:nth-of-type(even) .aku-magic-layout {
            grid-template-columns: 1fr;

            grid-template-areas:
                "media"
                "copy";
        }

        .aku-magic-media {
            min-block-size: var(--aku-magic-media-min-mobile);
        }

        .aku-magic-copy {
            max-inline-size: 100%;
        }
    }

    @media (max-width: 600px) {
        .aku-magic-block {
            padding-inline: 0.85rem;
        }

        .aku-magic-modal {
            width: 96vw;
            height: 85vh;
            padding: 0.75rem;
            border-radius: 0.75rem;
        }

        .aku-magic-zoom-btn span {
            display: none;
        }

        .aku-magic-zoom-btn {
            padding: 0.45rem;
        }
    }

    /* === Secciones genéricas de páginas hub === */
    .aku-seccion-cierre {
        max-inline-size: var(--aku-magic-measure);
        margin-inline: auto;
        padding-inline: var(--aku-padding-layout, 1.5rem);
        padding-block: clamp(2.5rem, 6vw, 4.5rem);
        text-align: center;
    }

    .aku-seccion-cierre h2 {
        margin-bottom: 1rem;
    }

    .aku-seccion-cierre p {
        color: var(--aku-texto-secundario);
        line-height: var(--aku-magic-line-height, 1.7);
        max-inline-size: 62ch;
        margin-inline: auto;
    }

    .aku-cta-group {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.85rem;
        margin-top: 1.75rem;
    }

    @media (max-width: 600px) {
        .aku-cta-group {
            flex-direction: column;
            align-items: stretch;
        }

        .aku-cta-group .aku-cta {
            width: 100%;
            text-align: center;
        }
    }

    /* ============================================================
   HERO DE PÁGINA (primera sección del main)
   ============================================================ */
    .aku-hero {
        --aku-hero-max: 76rem;
        --aku-hero-grad-a: var(--aku-morado);
        --aku-hero-grad-b: var(--aku-cian);
        position: relative;
        isolation: isolate;
        overflow: hidden;
        margin-inline: calc(-1 * var(--aku-padding-layout, 2rem));
        margin-block-start: calc(-1 * var(--aku-padding-layout, 2rem));
        border-radius: var(--aku-magic-radius);
        padding-block: clamp(3.5rem, 9vw, 7rem);
        padding-inline: clamp(1.25rem, 4vw, 2rem);
    }

    .aku-hero::before {
        content: "";
        position: absolute;
        inset: 0;
        z-index: -2;
        background:
            radial-gradient(60% 120% at 18% 0%, rgba(147, 0, 211, 0.22), transparent 60%),
            radial-gradient(50% 110% at 85% 15%, rgba(0, 194, 255, 0.16), transparent 55%),
            radial-gradient(70% 140% at 50% 110%, rgba(147, 0, 211, 0.12), transparent 60%);
    }

    .aku-hero::after {
        content: "";
        position: absolute;
        inset: 0;
        z-index: -1;
        opacity: 0.5;
        background-image:
            linear-gradient(rgba(181, 74, 222, 0.07) 1px, transparent 1px),
            linear-gradient(90deg, rgba(181, 74, 222, 0.07) 1px, transparent 1px);
        background-size: 46px 46px;
        mask-image: radial-gradient(ellipse at center, #000 30%, transparent 78%);
        -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 78%);
        pointer-events: none;
    }

    .aku-hero__interior {
        max-inline-size: var(--aku-hero-max);
        margin-inline: auto;
        display: grid;
        grid-template-columns: minmax(0, 1.15fr) minmax(20rem, 0.85fr);
        gap: clamp(2rem, 6vw, 6rem);
        align-items: center;
    }

    .aku-hero__copy {
        text-align: left;
    }

    .aku-hero__eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 0.6rem;
        margin: 0 0 1.25rem;
        font-size: 0.78rem;
        font-weight: 700;
        letter-spacing: 0.18em;
        text-transform: uppercase;
        color: var(--aku-texto-secundario);
    }

    .aku-hero__eyebrow::before,
    .aku-hero__eyebrow::after {
        content: "";
        height: 1px;
    }

    .aku-hero__eyebrow::before {
        width: 1.5rem;
        background: linear-gradient(90deg, var(--aku-hero-grad-a), transparent);
    }

    .aku-hero__eyebrow::after {
        width: 2.25rem;
        background: linear-gradient(90deg, var(--aku-hero-grad-b), transparent);
    }

    .aku-hero__titulo {
        margin: 0 0 1.5rem;
        max-inline-size: 20ch;
        font-size: clamp(2.4rem, 6.5vw, 4.6rem);
        line-height: 1.05;
        letter-spacing: -0.02em;
        text-wrap: balance;
    }

    .aku-hero__titulo .aku-hero__grad {
        background: linear-gradient(120deg, var(--aku-hero-grad-a), var(--aku-hero-grad-b));
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }

    .aku-hero__lead {
        margin: 0;
        max-inline-size: 62ch;
        color: var(--aku-texto-secundario);
        font-size: clamp(1.02rem, 1.6vw, 1.18rem);
        line-height: 1.7;
    }

    .aku-hero__lead strong {
        color: var(--aku-texto);
    }

    .aku-hero__acciones {
        display: flex;
        flex-wrap: wrap;
        justify-content: flex-start;
        gap: 0.85rem;
        margin-top: 2.25rem;
    }

    .aku-hero__chips {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.7rem;
        margin: 0;
        padding: clamp(1rem, 2.5vw, 1.5rem);
        list-style: none;
        border: 1px solid var(--aku-borde);
        border-radius: 1.25rem;
        background:
            linear-gradient(145deg, rgba(147, 0, 211, 0.12), transparent 48%),
            rgba(13, 13, 16, 0.56);
        box-shadow: 0 1.5rem 3.5rem rgba(0, 0, 0, 0.22);
    }

    .aku-hero__chip {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        min-height: 3.2rem;
        padding: 0.65rem 0.8rem;
        border: 1px solid var(--aku-borde);
        border-radius: 999px;
        background: rgba(255, 255, 255, 0.02);
        color: var(--aku-texto-secundario);
        font-size: 0.85rem;
        font-weight: 600;
        line-height: 1;
        transition: transform 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
    }

    .aku-hero__chip:hover {
        transform: translateY(-2px);
        border-color: var(--aku-hero-grad-a);
        color: var(--aku-texto);
    }

    .aku-hero__chip i {
        font-size: 0.9rem;
        line-height: 1;
    }

    .aku-hero__chip--tabla i,
    .aku-hero__chip--internet i,
    .aku-hero__chip--marca i {
        color: #60a5fa;
    }

    .aku-hero__chip--horoscopo i,
    .aku-hero__chip--ia i {
        color: #c084fc;
    }

    .aku-hero__chip--diseno i {
        color: #a855f7;
    }

    .aku-hero__chip--luz i,
    .aku-hero__chip--velocidad i,
    .aku-hero__chip--playa i,
    .aku-hero__chip--pintor i,
    .aku-hero__chip--user-doctor i,
    .aku-hero__chip--codigo i {
        color: #22d3ee;
    }

    .aku-hero__chip--cookies i,
    .aku-hero__chip--empresa i,
    .aku-hero__chip--musica i,
    .aku-hero__chip--estacional i,
    .aku-hero__chip--carta i {
        color: #fbbf24;
    }

    .aku-hero__chip--porton i,
    .aku-hero__chip--google i,
    .aku-hero__chip--seo i {
        color: #34d399;
    }

    .aku-hero__chip--voz i,
    .aku-hero__chip--moda i,
    .aku-hero__chip--heart-pulse i {
        color: #ff5e8f;
    }

    /* Chips para tutoriales y guías */
    .aku-hero__chip--prompt i,
    .aku-hero__chip--chat i {
        color: #00c2ff;
    }

    .aku-hero__chip--reglas i,
    .aku-hero__chip--trucos i {
        color: #ffaa00;
    }

    .aku-hero__chip--calidad i {
        color: #00ff88;
    }

    /* ============================================================
   LAYOUT Y COMPONENTES DE GUÍAS Y TUTORIALES
   ============================================================ */
    .aku-guia-layout {
        display: grid;
        grid-template-columns: minmax(260px, 300px) minmax(0, 1fr);
        gap: clamp(1.5rem, 3vw, 3rem);
        align-items: start;
        max-inline-size: var(--aku-hero-max);
        margin-inline: auto;
        padding-top: clamp(1rem, 2vw, 1.5rem);
        padding-bottom: clamp(1.5rem, 3vw, 3rem);
        position: relative;
    }

    /* Barra superior móvil para la guía */
    .aku-guia-topbar {
        display: none;
        position: sticky;
        top: calc(var(--nav-height, 60px) + 2px);
        z-index: 90;
        background: rgba(21, 21, 27, 0.95);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border: 1px solid var(--aku-borde);
        border-radius: 0.75rem;
        padding: 0.75rem 1.25rem;
        margin-bottom: 1.5rem;
        align-items: center;
        justify-content: space-between;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    }

    .aku-guia-topbar__titulo {
        font-family: "Noto Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
        font-size: 1.05rem;
        font-weight: 700;
        color: var(--aku-cian);
    }

    .aku-guia-topbar__btn {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        background: rgba(147, 0, 211, 0.15);
        border: 1px solid var(--aku-morado-claro);
        color: var(--aku-texto);
        padding: 0.45rem 0.9rem;
        border-radius: 0.5rem;
        font-size: 0.9rem;
        font-weight: 600;
        cursor: pointer;
        transition: all var(--duration) var(--ease);
    }

    .aku-guia-topbar__btn:hover,
    .aku-guia-topbar__btn:focus-visible {
        background: var(--aku-morado);
        color: #ffffff;
        outline: 2px solid var(--aku-cian);
    }

    /* Sidebar / Índice lateral */
    .aku-guia-sidebar {
        position: sticky;
        top: calc(var(--nav-height, 60px) + 1rem);
        height: calc(100vh - var(--nav-height, 60px) - 2rem);
        background: var(--aku-superficie);
        border: 1px solid var(--aku-borde);
        border-radius: 1rem;
        padding: 1.5rem 1.35rem;
        overflow-y: auto;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        scrollbar-width: thin;
        scrollbar-color: var(--aku-morado-oscuro) transparent;
    }

    .aku-guia-sidebar::-webkit-scrollbar {
        width: 4px;
    }

    .aku-guia-sidebar::-webkit-scrollbar-thumb {
        background: var(--aku-morado-oscuro);
        border-radius: 4px;
    }

    .aku-guia-sidebar__marca {
        display: flex;
        align-items: center;
        gap: 0.6rem;
        font-family: "Noto Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
        font-size: 1.15rem;
        font-weight: 700;
        color: var(--aku-texto);
        margin-bottom: 1.25rem;
        padding-bottom: 0.85rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .aku-guia-sidebar__marca i {
        color: var(--aku-morado-claro);
    }

    .aku-guia-sidebar__seccion-titulo {
        font-size: 0.78rem;
        text-transform: uppercase;
        letter-spacing: 0.08em;
        color: var(--aku-cian);
        font-weight: 800;
        margin: 1.2rem 0 0.5rem 0;
    }

    .aku-guia-sidebar__seccion-titulo:first-of-type {
        margin-top: 0;
    }

    .aku-guia-sidebar__lista {
        list-style: none;
        padding: 0;
        margin: 0;
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }

    .aku-guia-sidebar__enlace {
        display: flex;
        align-items: center;
        padding: 0.75rem 0.9rem;
        border-radius: 0.6rem;
        color: var(--aku-texto-secundario);
        text-decoration: none;
        font-size: 0.94rem;
        line-height: 1.4;
        border-left: 3px solid transparent;
        background: rgba(255, 255, 255, 0.02);
        transition: all var(--duration) var(--ease);
    }

    .aku-guia-sidebar__enlace:hover {
        background: rgba(147, 0, 211, 0.16);
        color: var(--aku-texto);
        border-left-color: var(--aku-cian);
        transform: translateX(4px);
    }

    .aku-guia-sidebar__enlace.is-active,
    .aku-guia-sidebar__enlace[aria-current="true"] {
        background: rgba(147, 0, 211, 0.28);
        color: #ffffff;
        border-left-color: var(--aku-morado-claro);
        font-weight: 700;
        box-shadow: 0 0 15px rgba(147, 0, 211, 0.25);
    }

    .aku-guia-sidebar__soporte {
        margin-top: 2rem;
        padding-top: 1.2rem;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        font-size: 0.88rem;
        color: var(--aku-texto-secundario);
        display: flex;
        flex-direction: column;
        gap: 0.45rem;
    }

    .aku-guia-sidebar__soporte a {
        color: var(--aku-cian);
        text-decoration: none;
        font-weight: 500;
    }

    .aku-guia-sidebar__soporte a:hover {
        text-decoration: underline;
    }

    /* Overlay móvil para sidebar */
    .aku-guia-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.75);
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
        z-index: 98;
        opacity: 0;
        transition: opacity var(--duration) var(--ease);
    }

    .aku-guia-overlay.is-visible {
        opacity: 1;
    }

    /* Contenido de la guía */
    .aku-guia-contenido {
        display: flex;
        flex-direction: column;
        gap: clamp(2rem, 4vw, 3.5rem);
        min-width: 0;
    }

    .aku-guia-bloque {
        background: var(--aku-superficie);
        border: 1px solid var(--aku-borde);
        border-radius: 1rem;
        padding: clamp(1.5rem, 3vw, 2.5rem);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        scroll-margin-top: calc(var(--nav-height, 60px) + 2rem);
    }

    .aku-guia-bloque__encabezado {
        margin-bottom: 1.5rem;
        padding-bottom: 1rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .aku-guia-bloque__num {
        display: inline-block;
        font-size: 0.82rem;
        text-transform: uppercase;
        letter-spacing: 0.1em;
        font-weight: 800;
        color: var(--aku-cian);
        margin-bottom: 0.4rem;
    }

    .aku-guia-bloque__titulo {
        font-family: "Noto Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
        font-size: clamp(1.4rem, 2.5vw, 1.9rem);
        color: var(--aku-texto);
        margin: 0;
        line-height: 1.25;
    }

    .aku-guia-subseccion {
        margin-top: 2rem;
        padding-top: 1.5rem;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    .aku-guia-subseccion:first-of-type {
        margin-top: 0;
        padding-top: 0;
        border-top: none;
    }

    .aku-guia-subseccion__titulo {
        font-size: clamp(1.15rem, 1.8vw, 1.35rem);
        color: var(--aku-texto);
        margin-top: 0;
        margin-bottom: 1rem;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .aku-guia-subseccion__titulo i {
        color: var(--aku-morado-claro);
    }

    .aku-guia-texto {
        font-size: 1.02rem;
        line-height: 1.68;
        color: var(--aku-texto-secundario);
        margin-bottom: 1.25rem;
    }

    .aku-guia-texto strong {
        color: var(--aku-texto);
    }

    .aku-guia-lista {
        padding-left: 1.35rem;
        margin-bottom: 1.5rem;
        color: var(--aku-texto-secundario);
        line-height: 1.65;
        font-size: 1rem;
    }

    .aku-guia-lista li {
        margin-bottom: 0.65rem;
    }

    .aku-guia-lista strong {
        color: var(--aku-texto);
    }

    /* Cajas interactivas y didácticas */
    .aku-guia-caja {
        border-radius: 0.75rem;
        padding: clamp(1.2rem, 2.5vw, 1.6rem);
        margin-block: 1.5rem;
        background: rgba(13, 13, 16, 0.65);
        border: 1px solid var(--aku-borde);
    }

    .aku-guia-caja--destacada {
        background: linear-gradient(135deg, rgba(147, 0, 211, 0.12) 0%, rgba(0, 194, 255, 0.08) 100%);
        border-color: var(--aku-morado-claro);
        border-left-width: 4px;
        box-shadow: 0 0 25px rgba(147, 0, 211, 0.18);
    }

    .aku-guia-caja--comparativa {
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }

    .aku-guia-caja--advertencia {
        background: rgba(255, 170, 0, 0.06);
        border-left: 4px solid #ffaa00;
        border-color: rgba(255, 170, 0, 0.35);
    }

    .aku-guia-caja__kicker {
        font-size: 0.8rem;
        font-weight: 800;
        text-transform: uppercase;
        letter-spacing: 0.08em;
        margin-bottom: 0.6rem;
        display: flex;
        align-items: center;
        gap: 0.45rem;
    }

    .aku-guia-caja--destacada .aku-guia-caja__kicker {
        color: var(--aku-morado-claro);
    }

    .aku-guia-caja--advertencia .aku-guia-caja__kicker {
        color: #ffbb22;
    }

    .aku-guia-ejemplo-bad,
    .aku-guia-ejemplo-good {
        border-radius: 0.6rem;
        padding: 1rem 1.25rem;
    }

    .aku-guia-ejemplo-bad {
        background: rgba(255, 60, 60, 0.08);
        border: 1px solid rgba(255, 60, 60, 0.25);
        border-left: 4px solid #ff4444;
    }

    .aku-guia-ejemplo-bad__etiqueta {
        color: #ff7777;
        font-size: 0.85rem;
        font-weight: 700;
        margin-bottom: 0.35rem;
    }

    .aku-guia-ejemplo-bad__texto {
        color: #ffcccc;
        font-style: italic;
        font-size: 0.98rem;
        margin: 0 0 0.5rem 0;
    }

    .aku-guia-ejemplo-bad__explicacion {
        font-size: 0.88rem;
        color: var(--aku-texto-secundario);
        margin: 0;
    }

    .aku-guia-ejemplo-good {
        background: rgba(0, 255, 136, 0.07);
        border: 1px solid rgba(0, 255, 136, 0.25);
        border-left: 4px solid #00ff88;
    }

    .aku-guia-ejemplo-good__etiqueta {
        color: #00ff88;
        font-size: 0.85rem;
        font-weight: 700;
        margin-bottom: 0.35rem;
    }

    .aku-guia-ejemplo-good__texto {
        color: #ffffff;
        font-weight: 500;
        font-size: 0.98rem;
        line-height: 1.5;
        margin: 0 0 0.5rem 0;
    }

    .aku-guia-ejemplo-good__explicacion {
        font-size: 0.88rem;
        color: #b7dfc8;
        margin: 0;
    }

    .aku-guia-prompt-copy {
        background: #09090c;
        border: 1px solid var(--aku-borde);
        border-radius: 0.6rem;
        padding: 1rem 1.25rem;
        font-size: 0.96rem;
        line-height: 1.55;
        color: #ffffff;
        margin-block: 0.75rem;
    }

    /* Checklist interactiva/visual */
    .aku-guia-checklist {
        display: flex;
        flex-direction: column;
        gap: 0.85rem;
        margin-top: 1rem;
    }

    .aku-guia-checklist__item {
        display: flex;
        gap: 0.85rem;
        align-items: flex-start;
        background: rgba(13, 13, 16, 0.5);
        border: 1px solid var(--aku-borde);
        border-radius: 0.6rem;
        padding: 0.85rem 1.1rem;
    }

    .aku-guia-checklist__num {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 1.65rem;
        height: 1.65rem;
        border-radius: 50%;
        background: var(--aku-morado);
        color: #ffffff;
        font-weight: 800;
        font-size: 0.85rem;
        flex-shrink: 0;
        margin-top: 0.15rem;
    }

    .aku-guia-checklist__info h3,
    .aku-guia-checklist__info h4 {
        margin: 0 0 0.25rem 0;
        font-size: 1rem;
        color: var(--aku-texto);
    }

    .aku-guia-checklist__info p {
        margin: 0;
        font-size: 0.9rem;
        color: var(--aku-texto-secundario);
    }

    .aku-guia-contenido a:not(.aku-cta) {
        color: var(--aku-cian);
        text-decoration: none;
        font-weight: 600;
    }

    .aku-guia-contenido a:not(.aku-cta):hover,
    .aku-guia-contenido a:not(.aku-cta):focus-visible {
        text-decoration: underline;
    }

    .aku-guia-contenido figure {
        margin: 1.5rem 0;
        border: 1px solid var(--aku-borde);
        border-radius: 0.75rem;
        overflow: hidden;
        background: var(--aku-superficie);
    }

    .aku-guia-contenido figure img {
        display: block;
        width: 100%;
        height: auto;
    }

    .aku-guia-contenido figcaption {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
        color: var(--aku-texto-secundario);
    }

    @media (max-width: 900px) {
        .aku-guia-layout {
            grid-template-columns: 1fr;
        }

        .aku-guia-topbar {
            display: flex;
        }

        .aku-guia-sidebar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: min(85vw, 320px);
            max-height: 100vh;
            border-radius: 0 1rem 1rem 0;
            z-index: 99;
            transform: translateX(-100%);
            transition: transform var(--duration) var(--ease);
        }

        .aku-guia-sidebar.is-open {
            display: block;
            transform: translateX(0);
        }

        .aku-guia-overlay.is-visible {
            display: block;
        }
    }

    /* ============================================================
   DEMO EMBEBIDA (iframe del panel de control)
   ============================================================ */
    .aku-demo-embed {
        max-inline-size: var(--aku-hero-max);
        margin-inline: auto;
        margin-block-end: clamp(2rem, 4vw, 3.5rem);
    }

    .aku-demo-embed__titulo {
        font-family: "Noto Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
        font-size: clamp(1.4rem, 2.5vw, 1.9rem);
        color: var(--aku-texto);
        margin-block: 0 0.75rem;
        line-height: 1.25;
    }

    .aku-demo-embed__intro {
        color: var(--aku-texto-secundario);
        font-size: 1.02rem;
        line-height: 1.6;
        margin-block: 0 1.5rem;
    }

    .aku-demo-embed__marco {
        border: 1px solid var(--aku-borde);
        border-radius: 1rem;
        overflow: hidden;
        background: var(--aku-superficie);
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    }

    .aku-demo-embed__marco iframe {
        display: block;
        width: 100%;
        height: min(85vh, 960px);
        border: 0;
    }

    .aku-demo-embed__acciones {
        margin-block-start: 1.25rem;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 0.75rem;
    }

    .aku-demo-embed__aviso {
        margin: 0;
        color: var(--aku-texto-secundario);
        font-size: 0.9rem;
    }

    /* ============================================================
   CIERRE DE PÁGINA (última sección del main)
   ============================================================ */
    .aku-cierre {
        max-inline-size: var(--aku-hero-max);
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        gap: clamp(1.5rem, 5vw, 5rem);
        align-items: center;
        text-align: left;
    }

    .aku-cierre h2,
    .aku-cierre p {
        margin-inline: 0;
    }

    .aku-cierre .aku-cta-group {
        min-inline-size: min(100%, 17rem);
        flex-direction: column;
        align-items: stretch;
        justify-content: center;
        margin-top: 0;
    }

    .aku-cierre .aku-cta {
        text-align: center;
    }

    @media (max-width: 760px) {

        .aku-hero__interior,
        .aku-cierre {
            grid-template-columns: 1fr;
            text-align: center;
        }

        .aku-hero__titulo,
        .aku-hero__lead {
            margin-inline: auto;
        }

        .aku-hero__acciones {
            justify-content: center;
        }

        .aku-hero__chips {
            margin-top: 0.75rem;
        }

        .aku-cierre p,
        .aku-cierre .aku-cta-group {
            margin-inline: auto;
        }
    }

    @media (max-width: 460px) {
        .aku-hero__chips {
            grid-template-columns: 1fr;
        }

        .aku-hero__acciones .aku-cta {
            width: 100%;
            text-align: center;
        }
    }