/* ============================================================
           MODELO FACE — tokens. Derivado del Brandbook FACE 2026.
           ============================================================ */
        .mf {
            --negro: #000000;
            --blanco: #ffffff;
            --gris: #8d8e8f;
            --azul: #0051ff;
            --naranja: #ff4500;

            --tinta: #0a0a0a;
            --humo: #f5f5f5;
            --linea: rgba(0, 0, 0, .12);
            --linea-inv: rgba(255, 255, 255, .16);

            --sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            --serif: 'Playfair Display', Georgia, serif;

            --t-mega: clamp(2.9rem, 9vw, 7.2rem);
            --t-xl: clamp(2.1rem, 5.4vw, 4.2rem);
            --t-md: clamp(1.12rem, 1.6vw, 1.35rem);
            --t-base: clamp(1rem, 1.25vw, 1.09rem);
            --t-sm: .875rem;
            --t-xs: .72rem;

            --pad-y: clamp(90px, 14vh, 180px);
            --pad-x: clamp(20px, 5vw, 64px);
            --ancho: 1240px;

            font-family: var(--sans);
            color: var(--negro);
            background: var(--blanco);
            -webkit-font-smoothing: antialiased;
        }

        .mf *,
        .mf *::before,
        .mf *::after { box-sizing: border-box; }

        .mf p, .mf h1, .mf h2, .mf h3, .mf h4, .mf ul, .mf figure { margin: 0; }
        .mf ul { padding: 0; list-style: none; }
        .mf img { max-width: 100%; display: block; }
        .mf a { color: inherit; text-decoration: none; }
        .mf :focus-visible { outline: 2px solid var(--azul); outline-offset: 3px; }

        /* Patron de marca: el grado cuadrado repetido (brandbook pag. 11 y 18) */
        .mf-pattern {
            position: absolute; inset: 0; pointer-events: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='90' height='90' viewBox='0 0 90 90'%3E%3Cg fill='none' stroke='%23000' stroke-width='1.6'%3E%3Cpath d='M14 8h8v8a4 4 0 0 1-4 4h-4a4 4 0 0 1-4-4v-4a4 4 0 0 1 4-4z'/%3E%3Cpath d='M59 53h8v8a4 4 0 0 1-4 4h-4a4 4 0 0 1-4-4v-4a4 4 0 0 1 4-4z'/%3E%3C/g%3E%3C/svg%3E");
            opacity: .05;
        }
        .mf-pattern--inv { filter: invert(1); opacity: .09; }

        /* ---------- Estructura ---------- */
        .mf-section { position: relative; padding: var(--pad-y) var(--pad-x); overflow: hidden; width: 100%; }
        .mf-section--clip { overflow: hidden; }
        .mf-wrap { position: relative; max-width: var(--ancho); margin: 0 auto; }
        .mf-dark { background: var(--negro); color: var(--blanco); }
        .mf-smoke { background: var(--humo); }

        /* ---------- Tipografia ---------- */
        .mf-eyebrow {
            display: inline-flex; align-items: center; gap: 10px;
            font-size: var(--t-xs); font-weight: 600; letter-spacing: .22em;
            text-transform: uppercase; color: var(--azul);
        }
        .mf-dark .mf-eyebrow { color: var(--blanco); opacity: .55; }

        .mf-h2 {
            font-size: var(--t-xl); font-weight: 800; line-height: 1.02;
            letter-spacing: -.035em; max-width: 20ch;
        }
        .mf-lead {
            font-size: var(--t-md); font-weight: 300; line-height: 1.62;
            max-width: 62ch; color: #2b2b2b;
        }
        .mf-dark .mf-lead { color: rgba(255, 255, 255, .74); }
        .mf-body {
            font-size: var(--t-base); font-weight: 300; line-height: 1.72;
            max-width: 66ch; color: #333;
        }
        .mf-dark .mf-body { color: rgba(255, 255, 255, .68); }
        .mf-body strong, .mf-lead strong { font-weight: 600; color: inherit; }
        .mf-dark .mf-body strong { color: #fff; }
        .mf-em { font-family: var(--serif); font-style: italic; font-weight: 700; }

        .mf-head { max-width: 780px; margin-bottom: clamp(64px, 8vw, 110px); }
        .mf-head .mf-eyebrow { margin-bottom: 20px; }
        .mf-head .mf-lead { margin-top: 22px; }

        /* ---------- Simbolo ---------- */
        .mf-mark { display: inline-block; width: .58em; height: .58em; vertical-align: baseline; flex: none; }
        .mf-mark path { fill: currentColor; }

        /* ---------- Botones ---------- */
        .mf-btn {
            display: inline-flex; align-items: center; gap: 12px;
            padding: 16px 30px; border: 1px solid transparent; border-radius: 100px;
            font-family: var(--sans); font-size: .84rem; font-weight: 600;
            letter-spacing: .06em; text-transform: uppercase; cursor: pointer;
            transition: transform .25s cubic-bezier(.2,.8,.2,1), background .25s, color .25s, border-color .25s, opacity .25s;
        }
        .mf-btn:hover { transform: translateY(-2px); }
        .mf-btn.mf-btn--solid:hover { box-shadow: 0 8px 24px rgba(255, 255, 255, 0.15); }
        .mf-btn.mf-btn--pulse:hover { box-shadow: 0 8px 24px rgba(255, 69, 0, 0.25); }
        .mf-btn svg { width: 15px; height: 15px; transition: transform .25s; }
        .mf-btn:hover svg { transform: translateX(4px); }
        .mf-btn.mf-btn--solid { background: var(--blanco); color: var(--negro); }
        .mf-btn.mf-btn--ink { background: var(--negro); color: var(--blanco); }
        .mf-btn.mf-btn--pulse { background: var(--naranja); color: var(--blanco); }
        .mf-btn.mf-btn--ghost { background: transparent; color: currentColor; border-color: currentColor; opacity: .75; }
        .mf-btn--ghost:hover { opacity: 1; }
        .mf-btn[disabled] { opacity: .3; pointer-events: none; }

        /* ---------- Revelado ---------- */
        .mf-rise {
            opacity: 0; transform: translateY(26px);
            transition: opacity .8s cubic-bezier(.2,.8,.2,1), transform .8s cubic-bezier(.2,.8,.2,1);
        }
        .mf-rise.is-in { opacity: 1; transform: none; }
        .mf-d1 { transition-delay: .09s; }
        .mf-d2 { transition-delay: .18s; }
        .mf-d3 { transition-delay: .27s; }

        /* ============================================================
           01 · HERO
           ============================================================ */
        .mf-hero {
            min-height: 100svh; display: flex; position: relative;
            padding: clamp(90px, 12vh, 140px) var(--pad-x) clamp(30px, 4vh, 40px);
        }
        .mf-hero::before {
            content: ''; position: absolute; inset: 0; pointer-events: none;
            background: radial-gradient(circle at 50% 20%, rgba(255, 69, 0, 0.1), rgba(0, 81, 255, 0.05) 50%, transparent 80%);
            z-index: 0;
        }
        .mf-hero > .mf-wrap { flex: 1; width: 100%; display: flex; flex-direction: column; position: relative; z-index: 1; }
        .mf-hero__eyebrow { margin-bottom: clamp(26px, 5vh, 46px); }
        .mf-hero__title {
            font-size: var(--t-mega); font-weight: 800; line-height: .92;
            letter-spacing: -.045em; max-width: 15ch;
        }
        .mf-hero__title .mf-mark { color: var(--naranja); width: .28em; height: .28em; margin-left: .06em; }

        .mf-hero__ticker {
            margin-top: clamp(24px, 4vh, 38px); min-height: 4.2em;
            font-size: var(--t-md); font-weight: 300; line-height: 1.5;
            color: rgba(255, 255, 255, .62); max-width: 46ch;
        }
        .mf-hero__ticker b {
            display: block; font-weight: 300; opacity: 0; transform: translateY(10px);
            transition: opacity .7s ease, transform .7s ease;
        }
        .mf-hero__ticker b.on { opacity: 1; transform: none; }
        .mf-hero__ticker b:last-child { color: #fff; font-weight: 500; }

        .mf-hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: clamp(40px, 8vh, 80px); margin-bottom: clamp(30px, 4vh, 40px); }

        .mf-hero__foot {
            margin-top: auto; padding-top: 16px; display: flex; align-items: flex-end;
            justify-content: flex-end; gap: 24px; border-top: none;
        }
        .mf-hero__note {
            display: none;
        }
        .mf-scroll {
            display: flex; align-items: center; gap: 10px; font-size: var(--t-xs);
            letter-spacing: .2em; text-transform: uppercase; color: rgba(255, 255, 255, .4); white-space: nowrap;
        }
        .mf-scroll span.bar { display: block; width: 46px; height: 1px; background: rgba(255,255,255,.3); position: relative; overflow: hidden; }
        .mf-scroll span.bar::after {
            content: ''; position: absolute; inset: 0; background: var(--naranja);
            transform: translateX(-100%); animation: mf-sweep 2.6s cubic-bezier(.6,0,.2,1) infinite;
        }
        @keyframes mf-sweep { 0% { transform: translateX(-100%) } 60%, 100% { transform: translateX(100%) } }

        /* ============================================================
           02 · RECONOCIMIENTO
           ============================================================ */
        #reconocer { position: relative; z-index: 1; }
        #reconocer::before {
            content: ''; position: absolute; inset: 0; pointer-events: none;
            background-image: radial-gradient(rgba(0,0,0,0.02) 1px, transparent 1px);
            background-size: 20px 20px; z-index: -1;
        }
        .mf-two { display: grid; grid-template-columns: 1fr; gap: clamp(40px, 6vw, 88px); }
        @media(min-width:940px) { .mf-two { grid-template-columns: 1.05fr .95fr; align-items: start; } }
        .mf-stack > * + * { margin-top: 26px; }

        .mf-gcard {
            position: relative; padding: clamp(28px, 4vw, 44px);
            background: var(--blanco); border: 1px solid var(--linea);
            border-radius: 26px 0 26px 26px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            transition: transform 0.4s cubic-bezier(.2,.8,.2,1), box-shadow 0.4s cubic-bezier(.2,.8,.2,1), border-color 0.4s;
        }
        .mf-gcard:hover {
            transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
            border-color: rgba(255, 69, 0, 0.25);
        }
        .mf-gcard__tag {
            display: inline-flex; align-items: center; gap: 9px; font-size: var(--t-xs);
            font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
            color: var(--azul); margin-bottom: 20px;
        }
        .mf-gcard__q { font-size: clamp(1.35rem, 2.5vw, 1.95rem); font-weight: 700; line-height: 1.24; letter-spacing: -.02em; }
        .mf-gcard__rule { width: 40px; height: 2px; background: var(--naranja); margin: 24px 0; }
        .mf-gcard__a { font-size: var(--t-base); font-weight: 300; line-height: 1.65; color: #4a4a4a; }

        /* ============================================================
           03 · AUTOPSIAS — carrusel cinematografico de capsulas
           ============================================================ */
        .mf-caps__head {
            display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between;
            gap: 24px; max-width: var(--ancho); margin: 0 auto clamp(32px, 4vw, 48px);
            padding: 0 var(--pad-x);
        }
        .mf-caps__nav { display: flex; align-items: center; gap: 10px; }
        .mf-nav-arrow {
            width: 46px; height: 46px; border-radius: 50%; background: transparent;
            border: 1px solid var(--linea); color: var(--negro); cursor: pointer;
            display: grid; place-items: center; transition: all .3s cubic-bezier(.2,.8,.2,1);
        }
        .mf-nav-arrow svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 2; }
        .mf-nav-arrow:hover:not([disabled]) { 
            background: var(--negro); color: var(--blanco); border-color: var(--negro); 
            box-shadow: 0 6px 16px rgba(0,0,0,0.2); transform: scale(1.08);
        }
        .mf-nav-arrow[disabled] { opacity: .25; pointer-events: none; }

        .mf-caps__rail {
            display: flex; gap: clamp(14px, 2vw, 22px);
            overflow-x: auto; scroll-snap-type: x mandatory;
            padding: 0 var(--pad-x) 6px; scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
        }
        .mf-caps__rail::-webkit-scrollbar { display: none; }

        .mf-cap {
            position: relative; flex: 0 0 min(88vw, 980px); scroll-snap-align: center;
            min-height: min(78vh, 680px); overflow: hidden;
            border-radius: 34px 0 34px 34px; background: var(--negro); color: #fff;
            display: flex; flex-direction: column; justify-content: flex-end;
            padding: clamp(30px, 4.5vw, 62px);
            isolation: isolate; transition: transform 0.4s cubic-bezier(.2,.8,.2,1);
        }
        .mf-cap:hover { transform: scale(0.995); }
        /* Marca de agua tipografica: el mercado, gigante y al fondo */
        .mf-cap__ghost {
            position: absolute; right: -.06em; top: -.14em; z-index: 0;
            font-size: clamp(9rem, 26vw, 22rem); font-weight: 800; letter-spacing: -.06em;
            line-height: .78; color: rgba(255, 255, 255, .045); pointer-events: none;
            white-space: nowrap; user-select: none; transition: transform 0.6s cubic-bezier(.2,.8,.2,1);
        }
        .mf-cap:hover .mf-cap__ghost { transform: scale(1.03) translate(-10px, 10px); }
        .mf-cap__glow {
            position: absolute; z-index: 0; width: 120%; height: 90%; left: -35%; bottom: -45%;
            background: radial-gradient(ellipse at center, rgba(255,69,0,.20), rgba(255,69,0,0) 62%);
            pointer-events: none; opacity: 0.6; transition: opacity 0.5s ease;
        }
        .mf-cap:hover .mf-cap__glow { opacity: 1; }
        .mf-cap > * { position: relative; z-index: 1; }

        .mf-cap__top {
            display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 18px;
            margin-bottom: auto; padding-bottom: 40px;
        }
        .mf-cap__idx {
            font-size: var(--t-xs); font-weight: 700; letter-spacing: .2em;
            color: rgba(255, 255, 255, .38);
        }
        .mf-cap__mkt {
            font-size: var(--t-xs); font-weight: 700; letter-spacing: .2em;
            text-transform: uppercase; color: var(--naranja);
        }
        .mf-cap__who {
            font-size: clamp(2.3rem, 6vw, 4.6rem); font-weight: 800;
            letter-spacing: -.045em; line-height: .95; margin-bottom: clamp(24px, 3vw, 38px);
        }
        .mf-cap__fields {
            display: grid; grid-template-columns: 1fr; gap: clamp(20px, 2.4vw, 30px);
            padding-top: clamp(24px, 3vw, 34px); border-top: 1px solid var(--linea-inv);
        }
        @media(min-width:820px) { .mf-cap__fields { grid-template-columns: 1fr 1fr 300px; } }
        .mf-cap__k {
            display: inline-flex; align-items: center; font-size: .65rem; font-weight: 800; letter-spacing: .15em;
            text-transform: uppercase; color: #fff; margin-bottom: 14px;
            padding: 6px 12px; background: rgba(255, 255, 255, 0.1); border-radius: 6px;
        }
        .mf-cap__v { font-size: .99rem; font-weight: 300; line-height: 1.6; color: rgba(255, 255, 255, .8); }
        .mf-cap__cost {
            opacity: 0; transform: translateY(12px);
            transition: opacity .8s cubic-bezier(.2,.8,.2,1) .55s, transform .8s cubic-bezier(.2,.8,.2,1) .55s;
        }
        .mf-cap.is-active .mf-cap__cost { opacity: 1; transform: none; }
        .mf-cap__num {
            display: block; font-size: clamp(3rem, 5.5vw, 4.8rem); font-weight: 900;
            letter-spacing: -.04em; line-height: .9; color: #ff3b3b; margin-bottom: 14px;
            text-shadow: 0 0 30px rgba(255, 59, 59, 0.35);
        }

        /* La cuarta capsula invierte el tono */
        .mf-cap--win { background: var(--blanco); color: var(--negro); }
        .mf-cap--win .mf-cap__ghost { color: rgba(0, 0, 0, .05); }
        .mf-cap--win .mf-cap__glow { background: radial-gradient(ellipse at center, rgba(0,81,255,.12), rgba(0,81,255,0) 62%); }
        .mf-cap--win .mf-cap__idx { color: rgba(0, 0, 0, .4); }
        .mf-cap--win .mf-cap__mkt { color: var(--azul); }
        .mf-cap--win .mf-cap__fields { border-top-color: var(--linea); }
        .mf-cap--win .mf-cap__k { background: rgba(0, 0, 0, 0.06); color: var(--negro); }
        .mf-cap--win .mf-cap__v { color: #333; }
        .mf-cap--win .mf-cap__num { color: var(--azul); text-shadow: 0 0 30px rgba(0, 81, 255, 0.25); }

        .mf-caps__prog {
            display: flex; gap: 6px; max-width: var(--ancho); margin: clamp(26px, 3vw, 38px) auto 0;
            padding: 0 var(--pad-x);
        }
        .mf-caps__seg { flex: 1; height: 2px; background: var(--linea); transition: background .4s; }
        .mf-caps__seg.on { background: var(--negro); }

        .mf-caps__close {
            max-width: var(--ancho); margin: clamp(40px, 5vw, 62px) auto 0; padding: 0 var(--pad-x);
        }

        /* ============================================================
           MANIFIESTO FACE (Intersticial)
           ============================================================ */
        .mf-manifesto-sec {
            background: var(--blanco);
            min-height: min(50vh, 500px); display: flex; align-items: center; justify-content: center;
            text-align: center; border-bottom: 1px solid var(--linea);
            position: relative; padding: clamp(80px, 10vw, 120px) var(--pad-x);
        }
        .mf-manifesto-content {
            position: relative; z-index: 1; max-width: 1200px; margin: 0 auto;
        }
        .mf-manifesto-text {
            font-size: clamp(2rem, 5vw, 4.2rem); font-family: var(--sans); font-weight: 800;
            letter-spacing: -0.04em; line-height: 1.1; color: var(--negro); margin: 0;
            text-wrap: balance;
        }
        .mf-hl { color: var(--naranja); }

        /* ============================================================
           04 · EL MECANISMO
           ============================================================ */
        .mf-mech__grid { display: grid; grid-template-columns: 1fr; gap: 14px; margin-top: clamp(40px, 5vw, 64px); }
        @media(min-width:1000px) {
            .mf-mech__grid { grid-template-columns: 1fr 150px 1fr; align-items: start; gap: 0; }
            .mf-core { align-self: center; }
        }
        .mf-col__title {
            display: block; font-size: var(--t-xs); font-weight: 700; letter-spacing: .2em;
            text-transform: uppercase; color: rgba(255, 255, 255, .42); margin-bottom: 16px;
        }
        .mf-opt {
            display: block; width: 100%; text-align: left; padding: 18px 20px; margin-bottom: 10px;
            background: transparent; color: rgba(255, 255, 255, .74);
            border: 1px solid var(--linea-inv); border-radius: 16px 0 16px 16px;
            font-family: var(--sans); font-size: .96rem; font-weight: 400; line-height: 1.45;
            cursor: pointer; transition: border-color .25s, background .25s, color .25s, transform .25s;
        }
        .mf-opt:hover { border-color: rgba(255, 255, 255, .45); color: #fff; transform: translateY(-2px); }
        .mf-opt small {
            display: block; margin-top: 6px; font-size: .72rem; font-weight: 500;
            letter-spacing: .1em; text-transform: uppercase; color: var(--gris);
        }
        .mf-opt[aria-pressed="true"] { background: rgba(255,255,255,.06); border-color: #fff; color: #fff; }
        .mf-opt[aria-pressed="true"] small { color: var(--naranja); }

        /* Nucleo: el grado cuadrado. Reposo hueco, conexion correcta = relleno solido.
           Sin rotacion: rotar una figura de tres vertices curvos y uno recto se lee
           como desalineada, no como resuelta. */
        .mf-core { display: flex; align-items: center; justify-content: center; padding: 26px 0; gap: 0; }
        .mf-core__wire {
            flex: 1; height: 1px; min-width: 26px; position: relative; background: var(--linea-inv);
        }
        .mf-core__wire::after {
            content: ''; position: absolute; top: 0; height: 1px; width: 100%;
            background: var(--naranja); transform: scaleX(0); transition: transform .55s cubic-bezier(.2,.8,.2,1);
        }
        .mf-core__wire--l::after { right: 0; transform-origin: right center; }
        .mf-core__wire--r::after { left: 0; transform-origin: left center; }
        .mf-core.is-lit-l .mf-core__wire--l::after { transform: scaleX(1); }
        .mf-core.is-lit-r .mf-core__wire--r::after { transform: scaleX(1); }
        /* Fallo: el cable se dibuja punteado y se detiene antes de tocar */
        .mf-core.is-failed .mf-core__wire::after {
            background: repeating-linear-gradient(90deg, var(--gris) 0 4px, transparent 4px 9px);
            transform: scaleX(.55);
        }

        .mf-core__ring { position: relative; width: 88px; height: 88px; flex: none; display: grid; place-items: center; }
        .mf-core__ring svg { width: 100%; height: 100%; transition: transform .5s cubic-bezier(.2,.8,.2,1); }
        .mf-core__ring svg path {
            fill: transparent; stroke: rgba(255, 255, 255, .28); stroke-width: 1.5;
            transition: fill .5s cubic-bezier(.2,.8,.2,1), stroke .45s, stroke-width .45s;
        }
        .mf-core.is-armed .mf-core__ring svg path { stroke: rgba(255, 255, 255, .78); }
        .mf-core.is-locked .mf-core__ring svg { transform: scale(1.09); }
        .mf-core.is-locked .mf-core__ring svg path { fill: var(--naranja); stroke: var(--naranja); stroke-width: 2; }
        .mf-core.is-failed .mf-core__ring svg path { fill: transparent; stroke: var(--gris); stroke-width: 1.5; }
        .mf-core.is-locked .mf-core__ring { animation: mf-lock .55s cubic-bezier(.2,.8,.2,1); }
        @keyframes mf-lock { 0% { transform: scale(.9) } 55% { transform: scale(1.1) } 100% { transform: scale(1) } }
        .mf-core__halo {
            position: absolute; inset: -14px; border-radius: 24px 0 24px 24px;
            border: 1px solid transparent; transition: border-color .5s, transform .5s;
        }
        .mf-core.is-locked .mf-core__halo { border-color: rgba(255, 69, 0, .3); transform: scale(1.06); }

        @media(max-width:999px) {
            .mf-core { flex-direction: column; }
            .mf-core__wire { width: 1px; height: 30px; min-width: 0; flex: none; }
            .mf-core__wire::after { width: 1px; height: 100%; top: auto; }
            .mf-core__wire--l::after { bottom: 0; transform-origin: center bottom; transform: scaleY(0); }
            .mf-core__wire--r::after { top: 0; transform-origin: center top; transform: scaleY(0); }
            .mf-core.is-lit-l .mf-core__wire--l::after { transform: scaleY(1); }
            .mf-core.is-lit-r .mf-core__wire--r::after { transform: scaleY(1); }
            .mf-core.is-failed .mf-core__wire::after {
                background: repeating-linear-gradient(180deg, var(--gris) 0 4px, transparent 4px 9px);
                transform: scaleY(.55);
            }
        }

        .mf-result {
            margin-top: clamp(28px, 4vw, 44px); padding: clamp(28px, 4vw, 44px);
            border: 1px solid var(--linea-inv); border-radius: 26px 0 26px 26px;
            background: #0d0d0d; min-height: 200px; display: flex; flex-direction: column; justify-content: center;
        }
        .mf-result__idle {
            font-size: var(--t-base); font-weight: 300; line-height: 1.66;
            color: rgba(255, 255, 255, .42); max-width: 58ch;
        }
        .mf-result__tag {
            display: inline-flex; align-items: center; gap: 9px; font-size: var(--t-xs);
            font-weight: 700; letter-spacing: .18em; text-transform: uppercase; margin-bottom: 16px;
        }
        .mf-result__tag.ok { color: var(--naranja); }
        .mf-result__tag.no { color: var(--gris); }
        .mf-result__title { font-size: clamp(1.5rem, 3vw, 2.3rem); font-weight: 800; letter-spacing: -.03em; line-height: 1.08; color: #fff; }
        .mf-result__text { margin-top: 16px; font-size: var(--t-base); font-weight: 300; line-height: 1.68; color: rgba(255,255,255,.68); max-width: 62ch; }
        .mf-result__reset {
            margin-top: 24px; align-self: flex-start; background: none; border: 0; padding: 0;
            font-family: var(--sans); font-size: .8rem; font-weight: 600; letter-spacing: .12em;
            text-transform: uppercase; color: rgba(255,255,255,.5); cursor: pointer;
            border-bottom: 1px solid rgba(255,255,255,.25);
        }
        .mf-result__reset:hover { color: #fff; border-color: #fff; }
        .mf-fade { animation: mf-fade .5s cubic-bezier(.2,.8,.2,1) both; }
        @keyframes mf-fade { from { opacity: 0; transform: translateY(10px) } to { opacity: 1; transform: none } }

        /* ============================================================
           05 · EL MODELO FACE — LAS CUATRO LETRAS
           ============================================================ */
        .ff {
            --ff-ink: var(--negro);
            --ff-mute: var(--gris);
            --ff-line: var(--linea);
            --ff-soft: rgba(0, 0, 0, .04);
            --ff-orange: var(--naranja);
            --ff-blue: var(--azul);
            --ff-sans: var(--sans);
            --ff-disp: var(--sans);

            display: grid;
            grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
            gap: clamp(28px, 5vw, 72px);
            align-items: center;
            margin-top: clamp(40px, 5vw, 68px);
            font-family: var(--ff-sans);
        }

        /* ── Diagrama ───────────────────────────────────────────── */
        .ff__stage {
            position: relative;
            width: 100%;
            max-width: 470px;
            margin-inline: auto;
            aspect-ratio: 1 / 1;
        }

        .ff__svg {
            width: 100%;
            height: 100%;
            overflow: visible;
        }

        .ff__track,
        .ff__loop,
        .ff__run {
            fill: none;
            stroke-linecap: round;
        }

        .ff__track {
            stroke: var(--ff-line);
            stroke-width: 2;
        }

        .ff__loop {
            stroke: rgba(0, 81, 255, .35);
            stroke-width: 2;
            stroke-dasharray: 1.6 3.4;
            animation: ff-drift 12s linear infinite;
        }

        @keyframes ff-drift {
            to { stroke-dashoffset: -50; }
        }

        .ff__arrow {
            fill: none;
            stroke: rgba(0, 0, 0, .3);
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .ff__arrow--back { stroke: rgba(0, 81, 255, .45); }

        .ff__run {
            stroke: var(--ff-orange);
            stroke-width: 5;
            stroke-dasharray: 25.89 100;
            stroke-dashoffset: 0;
            transition: stroke-dasharray .55s cubic-bezier(.65, 0, .35, 1),
                stroke-dashoffset .55s cubic-bezier(.65, 0, .35, 1),
                stroke .35s ease;
        }

        .ff.is-returning .ff__run { stroke: var(--ff-blue); }

        .ff__node { cursor: pointer; outline: none; }
        .ff__hit { fill: transparent; }
        .ff__disc {
            fill: #fff; stroke: var(--ff-ink); stroke-width: 2;
            transition: fill .3s ease, stroke .3s ease, r .3s ease;
        }
        .ff__glyph {
            font-family: var(--ff-disp); font-weight: 800; font-size: 30px;
            fill: var(--ff-ink); text-anchor: middle; dominant-baseline: central;
            transition: fill .3s ease; pointer-events: none;
        }
        .ff__word {
            font-family: var(--ff-sans); font-weight: 600; font-size: 19px;
            letter-spacing: .01em; fill: var(--ff-mute); text-anchor: middle;
            transition: fill .3s ease; pointer-events: none;
        }
        .ff__node.is-on .ff__disc { fill: var(--ff-orange); stroke: var(--ff-orange); }
        .ff__node.is-on .ff__glyph { fill: #fff; }
        .ff__node.is-on .ff__word { fill: var(--ff-ink); }
        .ff__node:hover .ff__disc { stroke: var(--ff-orange); }
        .ff__node:focus-visible .ff__disc { stroke: var(--ff-blue); stroke-width: 3; }

        .ff__center {
            position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
            width: 58%; text-align: center; display: flex; flex-direction: column; gap: 6px; pointer-events: none;
        }
        .ff__center-n {
            font-size: .72rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; color: var(--ff-orange);
        }
        .ff__center-t {
            font-family: var(--ff-disp); font-weight: 800; font-size: clamp(1.6rem, 4.2vw, 2.35rem); line-height: 1; color: var(--ff-ink); letter-spacing: -.03em;
        }
        .ff__center-q {
            font-size: .95rem; font-weight: 500; line-height: 1.35; color: var(--ff-mute);
        }

        /* ── Panel ──────────────────────────────────────────────── */
        .ff__card {
            border-top: 2px solid var(--ff-ink);
            padding-top: clamp(20px, 2.4vw, 30px);
        }
        .ff__step {
            display: inline-block; font-family: var(--ff-disp); font-size: .78rem; font-weight: 600;
            letter-spacing: .2em; text-transform: uppercase; color: var(--ff-mute); margin-bottom: 14px;
        }
        .ff__title {
            font-family: var(--ff-disp); font-weight: 800; font-size: clamp(2.2rem, 4.6vw, 3rem);
            line-height: 1.02; letter-spacing: -.03em; color: var(--ff-ink); margin: 0 0 6px;
        }
        .ff__claim {
            font-size: clamp(1.02rem, 1.7vw, 1.2rem); font-weight: 600; color: var(--ff-orange); margin: 0 0 16px;
        }
        .ff__text {
            font-size: clamp(1rem, 1.55vw, 1.09rem); font-weight: 300; line-height: 1.66; color: #3a3a3a; margin: 0 0 22px; max-width: 54ch;
        }
        .ff__out, .ff__risk {
            display: flex; flex-direction: column; gap: 3px; margin: 0 0 12px; padding: 13px 0 13px 16px; border-left: 3px solid var(--ff-line);
        }
        .ff__out { border-left-color: var(--ff-orange); background: linear-gradient(90deg, rgba(255, 69, 0, .05), transparent 65%); }
        .ff__risk { border-left-color: rgba(0, 0, 0, .22); }
        .ff__out span, .ff__risk span {
            font-size: .7rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--ff-mute);
        }
        .ff__out b, .ff__risk b {
            font-size: 1rem; font-weight: 500; line-height: 1.45; color: var(--ff-ink);
        }

        .ff__fade { animation: ff-in .4s ease both; }
        @keyframes ff-in { from { opacity: 0; transform: translateY(9px); } to { opacity: 1; transform: none; } }

        /* ── Navegación ─────────────────────────────────────────── */
        .ff__nav { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin-top: clamp(22px, 2.6vw, 32px); }
        .ff__tabs { display: flex; flex-wrap: wrap; gap: 7px; }
        .ff__tab {
            font-family: var(--ff-sans); font-size: .84rem; font-weight: 600; color: var(--ff-mute);
            background: transparent; border: 1px solid var(--ff-line); border-radius: 999px;
            padding: 8px 15px; cursor: pointer; transition: all .22s ease;
        }
        .ff__tab:hover { border-color: var(--ff-ink); color: var(--ff-ink); }
        .ff__tab.is-on { background: var(--ff-ink); border-color: var(--ff-ink); color: #fff; }
        .ff__tab:focus-visible { outline: 2px solid var(--ff-blue); outline-offset: 2px; }

        .ff__next {
            display: inline-flex; align-items: center; gap: 9px; font-family: var(--ff-sans);
            font-size: .88rem; font-weight: 600; color: var(--ff-ink); background: transparent; border: none;
            padding: 8px 0; cursor: pointer; transition: color .22s ease;
        }
        .ff__next svg { width: 17px; height: 17px; transition: transform .25s ease; }
        .ff__next:hover { color: var(--ff-orange); }
        .ff__next:hover svg { transform: translateX(4px); }
        .ff__next:focus-visible { outline: 2px solid var(--ff-blue); outline-offset: 3px; }

        /* ── Por qué el orden importa ───────────────────────────── */
        .ff__logic {
            margin-top: clamp(52px, 6vw, 88px); padding-top: clamp(30px, 3.4vw, 44px);
            border-top: 1px solid var(--linea); font-family: var(--sans);
        }
        .ff__logic-t {
            font-family: var(--sans); font-weight: 800; font-size: clamp(1.25rem, 2.3vw, 1.6rem); letter-spacing: -.03em; color: var(--negro); margin: 0 0 22px;
        }
        .ff__logic-list {
            list-style: none; margin: 0 0 24px; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
            gap: 1px; background: var(--linea); border: 1px solid var(--linea);
        }
        .ff__logic-list li { background: #fff; padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 6px; }
        .ff__logic-list b {
            font-family: var(--sans); font-weight: 800; font-size: 1.02rem; letter-spacing: -.01em; color: var(--naranja);
        }
        .ff__logic-list span { font-size: .93rem; font-weight: 300; line-height: 1.45; color: #3a3a3a; }
        .ff__logic-p { font-size: clamp(1rem, 1.5vw, 1.1rem); font-weight: 300; line-height: 1.62; color: #3a3a3a; max-width: 68ch; margin: 0; }
        .ff__logic-p b { font-weight: 600; color: var(--negro); }

        /* ── Responsive ─────────────────────────────────────────── */
        @media (max-width: 900px) {
            .ff { grid-template-columns: 1fr; gap: clamp(30px, 6vw, 44px); }
            .ff__stage { max-width: 360px; }
            .ff__logic-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
        }
        @media (max-width: 560px) {
            .ff__stage { max-width: 300px; }
            .ff__glyph { font-size: 34px; }
            .ff__word { font-size: 22px; }
            .ff__nav { flex-direction: column; align-items: flex-start; }
            .ff__logic-list { grid-template-columns: 1fr; }
        }
        @media (prefers-reduced-motion: reduce) {
            .ff__run, .ff__disc, .ff__glyph, .ff__word, .ff__next svg { transition: none; }
            .ff__loop { animation: none; }
            .ff__fade { animation: none; }
        }

        /* ============================================================
           06 · OBJETOS COTIDIANOS
           ============================================================ */
        .mf-objects {
            display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: clamp(16px, 3vw, 26px);
            margin-top: clamp(36px, 5vw, 64px);
        }
        .mf-obj { 
            position: relative; background: var(--blanco); padding: clamp(28px, 3.5vw, 42px); 
            border: 1px solid var(--linea); border-radius: 24px 0 24px 24px;
            transition: transform .45s cubic-bezier(.2,.8,.2,1), box-shadow .45s, border-color .45s; 
        }
        .mf-obj:hover { 
            transform: translateY(-6px); 
            box-shadow: 0 24px 48px -12px rgba(0,0,0,.08); 
            border-color: rgba(0,0,0,.15); 
        }
        .mf-obj__yr { 
            font-family: var(--sans); font-size: clamp(2.4rem, 4vw, 3.2rem); font-weight: 800; 
            letter-spacing: -.05em; line-height: 1; color: var(--linea); 
            display: block; transition: color .45s;
        }
        .mf-obj:hover .mf-obj__yr { color: rgba(255,69,0,.15); }
        .mf-obj__n { 
            position: relative; margin: 18px 0 14px; padding-top: 18px; 
            font-family: var(--sans); font-size: 1.25rem; font-weight: 800; letter-spacing: -.02em; line-height: 1.15; color: var(--negro); 
        }
        .mf-obj__n::before {
            content: ''; position: absolute; top: 0; left: 0; width: 30px; height: 2px; 
            background: var(--linea); transition: width .45s cubic-bezier(.2,.8,.2,1), background .45s;
        }
        .mf-obj:hover .mf-obj__n::before { width: 50px; background: var(--naranja); }
        .mf-obj__d { font-size: .96rem; font-weight: 300; line-height: 1.62; color: #3a3a3a; }

        /* ============================================================
           07 · EL LIBRO FACE (MOCKUP 3D PREMIUM)
           ============================================================ */
        .mf-book-showcase {
            display: grid; grid-template-columns: 1fr; gap: clamp(40px, 8vw, 100px);
            align-items: center; padding: clamp(50px, 8vw, 100px) 0;
        }
        @media (min-width: 900px) {
            .mf-book-showcase { grid-template-columns: minmax(320px, 1fr) minmax(320px, 1.2fr); }
        }

        .mf-book-visual {
            position: relative; perspective: 1600px; display: flex; justify-content: center;
        }
        .mf-book-visual::before {
            content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
            width: 360px; height: 460px;
            background: radial-gradient(circle at center, rgba(255, 69, 0, 0.5) 0%, rgba(255, 69, 0, 0.15) 55%, transparent 75%);
            border-radius: 50%; filter: blur(35px);
            z-index: 0; pointer-events: none;
            animation: mf-halo-pulse 6s ease-in-out infinite;
        }
        @keyframes mf-halo-pulse {
            0% { transform: translate(-50%, -50%) scale(1); opacity: 0.85; }
            50% { transform: translate(-50%, -50%) scale(1.1); opacity: 1; }
            100% { transform: translate(-50%, -50%) scale(1); opacity: 0.85; }
        }
        
        .mf-book-mockup {
            position: relative; width: 270px; height: 380px;
            z-index: 2;
            transform-style: preserve-3d;
            /* Float animation */
            animation: mf-book-float 6s ease-in-out infinite;
            transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
        }
        
        @keyframes mf-book-float {
            0% { transform: rotateY(-18deg) rotateX(4deg) translateY(0px); }
            50% { transform: rotateY(-18deg) rotateX(4deg) translateY(-14px); }
            100% { transform: rotateY(-18deg) rotateX(4deg) translateY(0px); }
        }

        .mf-book-mockup:hover {
            /* Stop float locally or just override it. Override is cleaner. */
            animation-play-state: paused;
            transform: rotateY(-5deg) rotateX(2deg) translateY(-10px) scale(1.02) !important;
        }

        .mf-book-cover {
            position: absolute; width: 100%; height: 100%;
            background: #1a1a1a;
            border-radius: 2px 7px 7px 2px;
            box-shadow: inset 4px 0 10px rgba(0,0,0,0.8), inset -1px 0 2px rgba(255,255,255,0.1);
            display: flex; align-items: center; justify-content: center;
            transform: translateZ(20px);
            overflow: hidden;
            /* Subtle texture */
            background-image: 
                radial-gradient(circle at 100% 0%, rgba(255,255,255,0.08) 0%, transparent 40%),
                linear-gradient(135deg, #0d0d0d 0%, #1a1a1a 100%);
        }

        /* Glare effect on hover */
        .mf-book-glare {
            position: absolute; top: 0; left: -100%; width: 50%; height: 100%;
            background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0) 100%);
            transform: skewX(-20deg);
            transition: left 0.8s ease;
            pointer-events: none;
        }
        .mf-book-mockup:hover .mf-book-glare { left: 200%; }

        .mf-book-logo {
            width: 75%; height: auto;
            object-fit: contain;
            /* Emboss effect: inner shadow logic combined with drop shadow */
            filter: drop-shadow(0px 2px 4px rgba(0,0,0,0.8)) drop-shadow(0px -1px 0px rgba(255,255,255,0.2));
            z-index: 2;
        }

        .mf-book-spine {
            position: absolute; width: 40px; height: 100%;
            background: #0a0a0a; border-radius: 4px 0 0 4px;
            transform: rotateY(-90deg) translateZ(20px) translateX(20px);
            box-shadow: inset -2px 0 8px rgba(0,0,0,0.6);
            display: flex; align-items: center; justify-content: center;
        }
        
        .mf-book-spine-txt {
            color: rgba(255,255,255,0.4);
            font-family: var(--sans); font-size: 0.85rem; font-weight: 700; letter-spacing: 2px;
            transform: rotate(-90deg); white-space: nowrap;
        }

        /* Fake pages (right side) */
        .mf-book-cover::after {
            content: ''; position: absolute; right: -36px; top: 2px; width: 36px; height: 98%;
            background: #e6e6e6; transform: rotateY(90deg); transform-origin: left;
            /* More realistic page block with indented shadows */
            box-shadow: inset 4px 0 10px rgba(0,0,0,0.4), inset -2px 0 5px rgba(0,0,0,0.1);
            background-image: 
                linear-gradient(to right, rgba(0,0,0,0.1) 0%, transparent 10%, transparent 90%, rgba(0,0,0,0.1) 100%),
                repeating-linear-gradient(to right, transparent, transparent 1px, rgba(0,0,0,0.08) 2px);
            border-radius: 0 4px 4px 0;
        }

        .mf-book-shadow {
            position: absolute; bottom: -30px; left: 5%; width: 90%; height: 25px;
            background: rgba(0,0,0,0.5); filter: blur(20px); border-radius: 50%;
            transform: rotateX(60deg);
            animation: mf-shadow-pulse 6s ease-in-out infinite;
            transition: all 0.6s ease;
        }
        
        @keyframes mf-shadow-pulse {
            0% { transform: rotateX(60deg) scale(1); opacity: 0.5; }
            50% { transform: rotateX(60deg) scale(0.85); opacity: 0.2; }
            100% { transform: rotateX(60deg) scale(1); opacity: 0.5; }
        }
        
        .mf-book-mockup:hover ~ .mf-book-shadow {
            transform: rotateX(60deg) scale(0.9); opacity: 0.3;
            animation-play-state: paused;
        }

        .mf-book-info { display: flex; flex-direction: column; align-items: flex-start; }
        /* --- ESTÉTICA PREMIUM PARA LA INFO DEL LIBRO --- */
        .mf-book-title {
            background: linear-gradient(135deg, #ffffff 0%, #a0a0a0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            color: transparent;
        }

        .mf-book-badge {
            display: inline-block;
            padding: 10px 24px;
            font-family: var(--sans);
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 1px;
            color: rgba(255,255,255,0.8);
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: 50px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            box-shadow: 0 4px 15px rgba(0,0,0,0.2), inset 0 1px 0 rgba(255,255,255,0.1);
            text-transform: uppercase;
            cursor: default;
        }

        /* --- STAGGERED REVEAL ANIMATIONS --- */
        .mf-book-info > * {
            opacity: 0;
            transform: translateY(20px);
            animation: mf-stagger-fade 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
        }
        /* Only run animation if parent has .is-visible or naturally when scrolled */
        /* Note: .mf-rise handles scroll reveal naturally on the whole container, 
           so we just add a delay based on the class if we want it to run when .mf-rise activates */
        
        @keyframes mf-stagger-fade {
            to { opacity: 1; transform: translateY(0); }
        }
        
        .mf-rise.is-in .mf-stagger-1 { animation-delay: 0.1s; }
        .mf-rise.is-in .mf-stagger-2 { animation-delay: 0.25s; }
        .mf-rise.is-in .mf-stagger-3 { animation-delay: 0.4s; }
        .mf-rise.is-in .mf-stagger-4 { animation-delay: 0.55s; }



        /* ============================================================
           08 · CURSO FOCO BANNER
           ============================================================ */
        .mf-foco-banner {
            position: relative; overflow: hidden;
            border-radius: 28px; padding: clamp(40px, 8vw, 70px) clamp(30px, 5vw, 60px);
            margin: clamp(40px, 6vw, 80px) 0;
            background: var(--humo); border: 1px solid var(--linea);
            display: flex; flex-direction: column; align-items: center; text-align: center;
        }
        .mf-foco-banner__bg {
            position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            background: radial-gradient(circle at center, rgba(255,69,0,0.05) 0%, transparent 70%);
            pointer-events: none;
        }
        .mf-foco-banner__content { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: center; }
        
        /* ============================================================
           09 · CIERRE
           ============================================================ */
        .mf-end { max-width: 940px; }
        .mf-end__t { font-size: clamp(2.3rem, 6vw, 4.6rem); font-weight: 800; line-height: .98; letter-spacing: -.042em; }
        .mf-end__d { margin: 30px 0 40px; font-size: var(--t-md); font-weight: 300; line-height: 1.62; color: rgba(255,255,255,.7); max-width: 56ch; }
        .mf-end__actions { display: flex; flex-wrap: wrap; gap: 14px; }
        .mf-end__sig { margin-top: clamp(56px, 8vw, 90px); padding-top: 30px; border-top: 1px solid var(--linea-inv); font-size: var(--t-sm); font-weight: 300; color: rgba(255,255,255,.45); }

        /* ============================================================
           IMPRESION — la Ficha de Conexion en papel
           ============================================================ */
        .mf-print { display: none; }
        @media print {
            body > *:not(.mf) { display: none !important; }
            .mf > .mf-section { display: none !important; }
            .mf-print { display: block !important; color: #000; font-family: var(--sans); }
            .mf-print__hd { display: flex; align-items: flex-end; justify-content: space-between; border-bottom: 2px solid #000; padding-bottom: 12pt; margin-bottom: 20pt; }
            .mf-print__ttl { font-size: 22pt; font-weight: 800; letter-spacing: -.03em; line-height: 1; }
            .mf-print__brand { font-size: 8pt; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; }
            .mf-print__row { padding: 12pt 0; border-bottom: .5pt solid #bbb; page-break-inside: avoid; }
            .mf-print__k { font-size: 7.5pt; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: #666; margin-bottom: 5pt; }
            .mf-print__v { font-size: 12pt; font-weight: 400; line-height: 1.45; }
            .mf-print__dx { margin-top: 18pt; padding: 14pt; border: 1pt solid #000; page-break-inside: avoid; }
            .mf-print__dx h3 { font-size: 14pt; font-weight: 800; letter-spacing: -.02em; margin: 6pt 0 8pt; }
            .mf-print__dx p { font-size: 10pt; line-height: 1.55; margin-bottom: 7pt; }
            .mf-print__ft { margin-top: 16pt; font-size: 8pt; color: #666; }
            @page { margin: 16mm; }
        }

        /* ---------- Movimiento reducido ---------- */
        @media (prefers-reduced-motion: reduce) {
            .mf *, .mf *::before, .mf *::after {
                animation-duration: .001ms !important; animation-iteration-count: 1 !important;
                transition-duration: .001ms !important;
            }
            .mf-rise { opacity: 1; transform: none; }
            .mf-hero__ticker b { opacity: 1; transform: none; }
            .mf-cap__cost { opacity: 1; transform: none; }
        }