/* ÓNIX v3 · consultancy positioning (built on v2 taste pass). Palette = v1 (locked). Type = Geist (self-hosted, OFL). */
    @font-face { font-family: 'Geist'; font-style: normal; font-weight: 100 900; font-display: swap; src: url('/fonts/geist-latin-wght-normal.woff2') format('woff2'); }
    @font-face { font-family: 'Geist'; font-style: italic; font-weight: 100 900; font-display: swap; src: url('/fonts/geist-latin-wght-italic.woff2') format('woff2'); }

    /* ── Tokens ─────────────────────────────────────────────── */
    :root {
      --paper:   #FFFFFF;   /* v1 bg */
      --paper-2: #F4F3EF;   /* v1 surface */
      --ink:     #0B0B0C;   /* v1 text */
      --ink-2:   #15151A;
      --muted:   #6B6B72;   /* 5.3:1 on --paper, 4.8:1 on --paper-2 */
      --line:    #E6E4DE;
      --accent:  #7C3AED;   /* v1 violet (5.7:1 on --paper, 5.1:1 on --paper-2) */
      --accent-ink: #6D28D9;
      --on-dark: #F5F4EF;
      --on-dark-muted: #9A9AA2; /* 7.1:1 on --ink */
      --accent-on-dark: #A176F2;
      --sans: 'Geist', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
      --wrap: 1200px;
      --nav-h: 64px;
      --ease: cubic-bezier(.16,1,.3,1);
      /* Shape rule: interactive controls = pill; fields, panels, devices = soft radius. */
      --r-field: 12px;
      /* Vertical rhythm */
      --sec-top: clamp(4.75rem, 9vw, 8rem);
      --sec-bot: clamp(5.25rem, 10vw, 9rem);
    }

    /* ── Reset ──────────────────────────────────────────────── */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--nav-h) + 16px); }
    @media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
    body {
      font-family: var(--sans);
      font-size: 1.0625rem;
      line-height: 1.6;
      color: var(--ink);
      background: var(--paper);
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }
    a { color: inherit; }
    ul, ol { list-style: none; }
    p { text-wrap: pretty; }
    button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
    :focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
    .dark :focus-visible { outline-color: var(--accent-on-dark); }
    .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
    .skip { position: absolute; left: 1rem; top: -100px; z-index: 200; background: var(--ink); color: var(--on-dark); padding: .75rem 1rem; min-height: 44px; border-radius: 999px; text-decoration: none; font-weight: 500; }
    .skip:focus { top: .75rem; }

    .wrap { width: min(var(--wrap), 100% - 3rem); margin-inline: auto; }
    @media (max-width: 600px) { .wrap { width: calc(100% - 2.5rem); } }
    .section { padding-block: var(--sec-top) var(--sec-bot); }

    /* ── Type ───────────────────────────────────────────────── */
    /* Section label: sentence case, quiet. No uppercase-tracked eyebrow on every section. */
    .kicker {
      display: block;
      font-size: .9375rem;
      font-weight: 500;
      letter-spacing: -.005em;
      color: var(--muted);
      margin-bottom: 1rem;
    }
    .dark .kicker { color: var(--on-dark-muted); }
    .display {
      font-family: var(--sans);
      font-weight: 600;
      letter-spacing: -.035em;
      line-height: 1.04;
      text-wrap: balance;
    }
    .h2 { font-size: clamp(2.125rem, 4.4vw, 3.625rem); max-width: 18ch; }
    .lead { font-size: clamp(1.125rem, 1.5vw, 1.3125rem); color: var(--muted); line-height: 1.55; letter-spacing: -.01em; max-width: 34em; }
    .dark .lead { color: var(--on-dark-muted); }
    .h2 + .lead { margin-top: 1.25rem; }

    /* ── Buttons & links ────────────────────────────────────── */
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
      min-height: 48px; padding: .75rem 1.5rem;
      border-radius: 999px;
      font-weight: 500; font-size: 1rem; letter-spacing: -.01em; text-decoration: none; white-space: nowrap;
      transition: background-color .25s var(--ease), color .25s var(--ease), transform .35s var(--ease), box-shadow .35s var(--ease);
    }
    .btn:hover { transform: translateY(-1px); }
    .btn:active { transform: translateY(0) scale(.98); transition-duration: .1s; }
    .btn--primary { background: var(--ink); color: var(--on-dark); }
    .btn--primary:hover { background: var(--ink-2); box-shadow: 0 10px 24px -14px rgba(11,11,12,.55); }
    .btn--accent { background: var(--accent); color: #fff; }
    .btn--accent:hover { background: var(--accent-ink); box-shadow: 0 10px 24px -14px rgba(109,40,217,.6); }
    .btn--light { background: var(--on-dark); color: var(--ink); }
    .btn--light:hover { background: #fff; }
    .link {
      display: inline-flex; align-items: center; gap: .4rem; min-height: 48px;
      font-weight: 500; letter-spacing: -.01em; color: var(--accent); text-decoration: underline;
      text-decoration-color: transparent; text-decoration-thickness: 1px; text-underline-offset: 5px;
      transition: text-decoration-color .25s var(--ease), color .25s var(--ease);
    }
    .link:hover { text-decoration-color: currentColor; color: var(--accent-ink); }
    .dark .link { color: var(--accent-on-dark); }
    .link svg { transition: transform .35s var(--ease); }
    .link:hover svg { transform: translateX(3px); }
    .link:hover svg[data-dir="back"] { transform: translateX(-3px); }

    /* ── Nav ────────────────────────────────────────────────── */
    .nav {
      position: sticky; top: 0; z-index: 100;
      height: var(--nav-h);
      background: color-mix(in srgb, var(--paper) 86%, transparent);
      -webkit-backdrop-filter: saturate(160%) blur(16px);
      backdrop-filter: saturate(160%) blur(16px);
      border-bottom: 1px solid color-mix(in srgb, var(--line) 80%, transparent);
    }
    .nav__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
    .logo { display: inline-flex; align-items: center; min-height: 44px; font-weight: 700; letter-spacing: .2em; font-size: .95rem; text-decoration: none; }
    .nav__links { display: flex; align-items: center; gap: .125rem; }
    .nav__links a:not(.btn) {
      display: inline-flex; align-items: center; min-height: 44px; padding: 0 .75rem;
      font-size: .9375rem; font-weight: 450; color: var(--muted); text-decoration: underline;
      text-decoration-color: transparent; text-underline-offset: 6px; text-decoration-thickness: 1px;
      border-radius: 8px; transition: color .2s var(--ease), text-decoration-color .2s var(--ease);
    }
    .nav__links a:not(.btn):hover { color: var(--ink); text-decoration-color: var(--line); }
    .nav__links a[aria-current="page"] { color: var(--ink); text-decoration-color: var(--accent); }
    .nav__links .btn { min-height: 44px; padding: .5rem 1.1rem; font-size: .9rem; margin-left: .625rem; }
    .burger { display: none; width: 44px; height: 44px; border-radius: 999px; align-items: center; justify-content: center; }
    .burger span, .burger span::before, .burger span::after { display: block; width: 20px; height: 1.5px; background: var(--ink); position: relative; transition: transform .3s var(--ease), background-color .2s; }
    .burger span::before, .burger span::after { content: ""; position: absolute; left: 0; }
    .burger span::before { top: -6px; } .burger span::after { top: 6px; }
    .burger[aria-expanded="true"] span { background: transparent; }
    .burger[aria-expanded="true"] span::before { transform: translateY(6px) rotate(45deg); }
    .burger[aria-expanded="true"] span::after { transform: translateY(-6px) rotate(-45deg); }
    .mmenu {
      position: fixed; inset: var(--nav-h) 0 0; z-index: 99;
      background: var(--paper);
      padding: 1rem 1.25rem 2rem;
      display: flex; flex-direction: column;
    }
    .mmenu[hidden] { display: none; }
    .mmenu a:not(.btn) { display: flex; align-items: center; min-height: 60px; font-size: 1.625rem; font-weight: 500; letter-spacing: -.03em; text-decoration: none; border-bottom: 1px solid var(--line); }
    .mmenu a[aria-current="page"] { color: var(--accent); }
    .mmenu .btn { margin-top: 1.75rem; }
    @media (prefers-reduced-motion: no-preference) {
      .mmenu:not([hidden]) > * { animation: rise .5s var(--ease) both; }
      .mmenu:not([hidden]) > :nth-child(2) { animation-delay: 40ms; }
      .mmenu:not([hidden]) > :nth-child(3) { animation-delay: 80ms; }
      .mmenu:not([hidden]) > :nth-child(4) { animation-delay: 120ms; }
      .mmenu:not([hidden]) > :nth-child(5) { animation-delay: 160ms; }
      .mmenu:not([hidden]) > :nth-child(6) { animation-delay: 200ms; }
    }
    @media (max-width: 900px) {
      .nav__links { display: none; }
      .burger { display: inline-flex; }
    }

    /* ── Hero ───────────────────────────────────────────────── */
    .hero { padding-block: clamp(2.75rem, 6vw, 5.5rem) clamp(4rem, 8vw, 6.5rem); overflow: hidden; }
    .hero__grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: clamp(2.5rem, 6vw, 6rem); align-items: center; }
    .hero h1 { font-size: clamp(2.625rem, 5.4vw, 4.75rem); letter-spacing: -.045em; line-height: 1.02; max-width: 14ch; }
    .hero h1 em { display: inline-block; font-style: italic; font-weight: 500; letter-spacing: -.04em; color: var(--accent); padding-bottom: .04em; }
    .hero__sub { margin-top: 1.5rem; max-width: 30em; }
    .hero__actions { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1.75rem; margin-top: 2.25rem; }
    .hero__trust { margin-top: 2.75rem; padding-top: 1.25rem; border-top: 1px solid var(--line); max-width: 30em; font-size: .9375rem; color: var(--muted); }
    @media (max-width: 900px) {
      .hero__grid { grid-template-columns: 1fr; }
      .hero h1 { max-width: 15ch; }
    }
    @media (max-width: 480px) {
      .hero__actions .btn { width: 100%; }
      .hero__actions { flex-direction: column; align-items: stretch; gap: .25rem; }
      .hero__actions .link { justify-content: center; }
      .hero__trust { margin-top: 2rem; }
    }


    /* ── Method diagram (hero · typographic, HTML/CSS only) ── */
    .method { margin: 0; background: var(--paper-2); border: 1px solid var(--line); border-radius: 24px; padding: clamp(1.5rem, 3vw, 2.25rem); }
    .method__head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding-bottom: 1.25rem; border-bottom: 1px solid var(--line); }
    .method__title { font-size: .9375rem; font-weight: 500; color: var(--muted); }
    .method__tag { font-size: .78rem; font-weight: 500; color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 999px; padding: .3rem .75rem; white-space: nowrap; }
    .method__list { position: relative; }
    .method__step { position: relative; display: grid; grid-template-columns: 1.5rem minmax(0, 1fr) auto; gap: 0 1rem; padding: 1.125rem 0; }
    .method__step + .method__step { border-top: 1px solid var(--line); }
    /* connector: thin vertical rule through the markers */
    .method__step::after { content: ""; position: absolute; left: calc(.75rem - .5px); top: calc(1.125rem + 1.05rem); bottom: calc(-1.125rem - .3rem); width: 1px; background: #C9C6BD; }
    .method__step:last-child::after { display: none; }
    .method__dot { position: relative; z-index: 1; width: 11px; height: 11px; margin: .5rem 0 0 calc(.75rem - 5.5px); border-radius: 50%; background: var(--paper-2); border: 1.5px solid var(--ink); transition: transform .35s var(--ease), background-color .25s var(--ease); }
    .method__step--entry .method__dot { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent) 16%, transparent); }
    .method__name { display: block; font-size: clamp(1.375rem, 2.2vw, 1.75rem); font-weight: 600; letter-spacing: -.035em; line-height: 1.15; }
    .method__desc { display: block; margin-top: .25rem; font-size: .9375rem; line-height: 1.5; color: var(--muted); max-width: 26em; }
    .method__num { font-size: .875rem; font-weight: 500; color: var(--muted); font-variant-numeric: tabular-nums; padding-top: .4rem; }
    .method__entry { display: inline-block; margin-top: .6rem; font-size: .8125rem; font-weight: 500; color: var(--accent); }
    .method__foot { margin-top: .75rem; padding-top: 1.125rem; border-top: 1px solid var(--line); font-size: .875rem; color: var(--muted); }
    @media (hover: hover) { .method__step:hover .method__dot { transform: scale(1.25); } }
    @media (prefers-reduced-motion: no-preference) {
      .method { animation: rise 1.1s var(--ease) .3s both; }
      .method__step { animation: rise .6s var(--ease) both; animation-delay: calc(var(--s, 0) * 110ms + 550ms); }
    }

    /* ── Phone mockup (illustrative) ────────────────────────── */
    .phone { position: relative; margin: 0; width: min(340px, 100%); }
    .phone__tag {
      position: absolute; top: -14px; right: -6px; z-index: 3;
      background: var(--paper); color: var(--ink);
      border: 1px solid var(--line); border-radius: 999px;
      font-size: .78rem; font-weight: 500; letter-spacing: 0;
      padding: .35rem .8rem; box-shadow: 0 6px 18px -8px rgba(11,11,12,.18);
    }
    .phone__frame {
      background: #0B0B0C; border-radius: 48px; padding: 11px;
      box-shadow: 0 1px 0 rgba(255,255,255,.08) inset, 0 40px 80px -34px rgba(11,11,12,.42), 0 18px 36px -20px rgba(11,11,12,.3);
      transition: transform .6s var(--ease);
    }
    .phone__screen { background: #0B0B0C; border-radius: 38px; overflow: hidden; display: flex; flex-direction: column; min-height: 560px; }
    .phone__status { display: flex; justify-content: space-between; align-items: center; padding: 14px 26px 6px; color: #F5F4EF; font-size: .8rem; font-weight: 600; font-variant-numeric: tabular-nums; }
    .phone__island { width: 92px; height: 26px; background: #15151A; border-radius: 20px; }
    .phone__head { display: flex; align-items: center; gap: .65rem; padding: .6rem 1rem .75rem; background: #15151A; color: #F5F4EF; }
    .phone__avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--accent); display: grid; place-items: center; font-weight: 600; font-size: .85rem; color: #fff; flex: none; }
    .phone__name { font-weight: 600; font-size: .95rem; line-height: 1.2; }
    .phone__meta { font-size: .75rem; color: #9A9AA2; }
    .chat { flex: 1; padding: 1rem .85rem 1.25rem; display: flex; flex-direction: column; gap: .5rem; background: #0B0B0C; }
    .msg { max-width: 82%; padding: .5rem .7rem .4rem; border-radius: 12px; font-size: .9rem; line-height: 1.4; color: #F5F4EF; }
    .msg time { display: block; text-align: right; font-size: .68rem; color: #9A9AA2; margin-top: .15rem; font-variant-numeric: tabular-nums; }
    .msg--in  { align-self: flex-start; background: #26262C; border-top-left-radius: 4px; }
    .msg--out { align-self: flex-end;   background: #7C3AED; border-top-right-radius: 4px; }
    .msg--out time { color: #F2ECFC; }
    .msg--out time::after { content: " ✓✓"; color: #FFFFFF; letter-spacing: -.15em; }
    .sys { align-self: center; margin-top: .35rem; background: #241B3A; color: #F5F4EF; font-size: .75rem; padding: .35rem .75rem; border-radius: 8px; text-align: center; }
    .chat__day { align-self: center; font-size: .7rem; color: #9A9AA2; background: #15151A; padding: .2rem .6rem; border-radius: 6px; margin-bottom: .25rem; }

    /* ── Motion: hero load sequence + scroll reveal (all gated) ─ */
    @keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
    @media (prefers-reduced-motion: no-preference) {
      .rise { animation: rise .9s var(--ease) both; animation-delay: calc(var(--i, 0) * 90ms + 60ms); }
      .phone { animation: rise 1.1s var(--ease) .3s both; }
      .chat > * { animation: rise .5s var(--ease) both; animation-delay: calc(var(--m, 0) * 480ms + 950ms); }
      .js-reveal .reveal { opacity: 0; transform: translateY(20px); transition: opacity .9s var(--ease), transform .9s var(--ease); transition-delay: calc(var(--d, 0) * 80ms); }
      .js-reveal .reveal.is-in { opacity: 1; transform: none; }
      @media (hover: hover) { .phone:hover .phone__frame { transform: translateY(-4px); } }
    }

    /* ── Soluciones layout · sticky heading + list ─────────── */
    .band { background: var(--paper-2); }
    .svc-layout { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2.5rem, 6vw, 6rem); align-items: start; }
    .svc-layout__head { position: sticky; top: calc(var(--nav-h) + 2.5rem); }
    @media (max-width: 900px) {
      .svc-layout { grid-template-columns: 1fr; }
      .svc-layout__head { position: static; }
    }


    /* ── Soluciones · Lo que podemos construir ─────────────── */
    .sol { border-bottom: 1px solid var(--line); counter-reset: sol; }
    .sol li { display: grid; grid-template-columns: 2.5rem minmax(0, 1fr) minmax(0, 1.1fr); gap: .5rem 1.5rem; padding: 1.75rem 0; border-top: 1px solid var(--line); }
    .sol__num { font-size: .9375rem; font-weight: 500; color: var(--accent); font-variant-numeric: tabular-nums; padding-top: .15rem; }
    .sol h3 { font-size: 1.25rem; font-weight: 600; letter-spacing: -.02em; line-height: 1.3; }
    .sol p { color: var(--muted); max-width: 32em; }
    .sol .link { min-height: 44px; margin-top: .25rem; font-size: .9375rem; }
    .sol__close { margin-top: clamp(2rem, 4vw, 2.75rem); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.25rem 2rem; }
    .sol__close p { font-size: clamp(1.125rem, 1.6vw, 1.3125rem); font-weight: 500; letter-spacing: -.015em; line-height: 1.4; max-width: 28em; }
    @media (max-width: 600px) {
      .sol li { grid-template-columns: 2rem minmax(0, 1fr); }
      .sol li > div:last-child { grid-column: 2; }
      .sol__close .btn { width: 100%; }
    }


    /* ── Cómo pensamos cada proyecto ────────────────────────── */
    .think .h2 { max-width: 20ch; }
    .think__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2.5rem clamp(1.25rem, 2.5vw, 2rem); margin-top: clamp(2.75rem, 5vw, 4rem); }
    .think__grid li { border-top: 1px solid var(--line); padding-top: 1.5rem; }
    .think__num { display: block; font-size: .9375rem; font-weight: 500; color: var(--accent); font-variant-numeric: tabular-nums; margin-bottom: 1rem; }
    .think h3 { font-size: 1.1875rem; font-weight: 600; letter-spacing: -.02em; line-height: 1.3; text-wrap: balance; }
    .think p { margin-top: .5rem; color: var(--muted); font-size: 1rem; max-width: 24em; }
    @media (max-width: 960px) { .think__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
    @media (max-width: 560px) { .think__grid { grid-template-columns: 1fr; gap: 1.75rem; } }

    /* ── Qué te llevas ─────────────────────────── */
    .takeaway { margin-top: clamp(2.75rem, 5vw, 4rem); background: var(--paper-2); border: 1px solid var(--line); border-radius: 24px; padding: clamp(1.5rem, 3.5vw, 2.5rem); display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 6fr) auto; gap: 1rem clamp(1.5rem, 4vw, 3rem); align-items: center; }
    .takeaway__title { font-size: clamp(1.375rem, 2.2vw, 1.75rem); font-weight: 600; letter-spacing: -.03em; line-height: 1.2; text-wrap: balance; }
    .takeaway__text { color: var(--muted); max-width: 34em; }
    @media (max-width: 960px) { .takeaway { grid-template-columns: 1fr; align-items: start; } .takeaway .btn { justify-self: start; } }
    @media (max-width: 480px) { .takeaway .btn { width: 100%; } }

    /* ── Phases ─────────────────────────────────────────────── */
    .phases-teaser .h2 { max-width: 20ch; }
    .phases-teaser__row { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 1rem 3rem; margin-top: 1.25rem; }
    .phases-teaser__row .lead { margin: 0; }
    .strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 clamp(1.25rem, 2.5vw, 2rem); margin-top: clamp(3rem, 6vw, 4.5rem); }
    .strip li { position: relative; border-top: 1px solid var(--ink); padding-top: 1.5rem; }
    .strip li::before { content: ""; position: absolute; left: 0; top: -1px; width: 2.5rem; height: 2px; background: var(--accent); }
    .strip__num { display: block; font-weight: 500; font-size: clamp(3rem, 5vw, 4.25rem); letter-spacing: -.05em; line-height: .9; font-variant-numeric: tabular-nums; color: var(--accent); margin-bottom: 1.5rem; }
    .strip h3, .strip h2 { font-size: 1.25rem; font-weight: 600; letter-spacing: -.02em; line-height: 1.3; }
    .strip__label { display: block; font-size: .9375rem; font-weight: 500; letter-spacing: 0; color: var(--muted); margin-bottom: .25rem; }
    .strip p { margin-top: .5rem; color: var(--muted); max-width: 26em; }
    .phases__foot { margin-top: clamp(2.5rem, 5vw, 3.5rem); color: var(--muted); }
    @media (max-width: 900px) { .strip { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2.75rem 2rem; } }
    @media (max-width: 520px) {
      .strip { grid-template-columns: 1fr; gap: 0; }
      .strip li { display: grid; grid-template-columns: 3.25rem minmax(0,1fr); gap: 0 1rem; padding: 1.5rem 0; border-top-color: var(--line); }
      .strip li::before { width: 3.25rem; }
      .strip__num { font-size: 2.75rem; margin: 0; grid-row: span 2; }
    }

    /* ── Product (dark · single deliberate color block) ─────── */
    .dark { background: var(--ink); color: var(--on-dark); }
    .product__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(3rem, 7vw, 7rem); align-items: center; }
    .product .h2 { max-width: 16ch; }
    .product__actions { display: flex; flex-wrap: wrap; gap: 1rem 1.5rem; align-items: center; margin-top: 2.25rem; }
    .product__note { margin-top: 1.5rem; font-size: .9375rem; color: var(--on-dark-muted); }
    .product__more { margin-top: clamp(3rem, 6vw, 4.5rem); padding-top: 1.5rem; border-top: 1px solid #26262C; color: var(--on-dark-muted); display: flex; flex-wrap: wrap; align-items: center; gap: .25rem 1rem; }
    .dark .phone__tag { background: var(--ink); color: var(--on-dark); border-color: #26262C; box-shadow: none; }
    .dark .phone__frame { background: #15151A; box-shadow: 0 0 0 1px #26262C, 0 40px 90px -30px rgba(0,0,0,.8); }
    .notif { margin: 1.25rem .85rem 0; background: rgba(255,255,255,.08); border-radius: 18px; padding: .85rem 1rem; color: #F5F4EF; }
    .notif__app { font-size: .72rem; color: #9A9AA2; display: flex; justify-content: space-between; margin-bottom: .3rem; }
    .notif p { font-size: .92rem; line-height: 1.4; }
    .notif__btns { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; margin-top: .75rem; }
    .notif__btns span { text-align: center; padding: .45rem; border-radius: 10px; background: rgba(255,255,255,.1); font-size: .85rem; font-weight: 600; color: #B592F5; }
    .product .phone__screen { min-height: 470px; }
    .product .phone { justify-self: center; }
    .lock { text-align: center; color: #F5F4EF; margin-top: 2.25rem; }
    .lock__time { font-size: 4rem; font-weight: 300; line-height: 1; letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
    .lock__date { font-size: .9rem; color: #9A9AA2; margin-top: .35rem; }
    @media (max-width: 900px) { .product__grid { grid-template-columns: 1fr; } }

    /* ── Case ───────────────────────────────────────────────── */
    .facts { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr); gap: 2rem clamp(1.5rem, 3vw, 2.5rem); margin-top: clamp(3rem, 6vw, 4.5rem); }
    .facts li { border-top: 1px solid var(--line); padding-top: 1.5rem; }
    .facts strong { display: block; font-weight: 600; font-size: clamp(2.25rem, 4vw, 3.25rem); line-height: 1; letter-spacing: -.045em; font-variant-numeric: tabular-nums; }
    .facts li:first-child strong { color: var(--accent); font-size: clamp(2.75rem, 5.5vw, 4.5rem); }
    .facts span { display: block; margin-top: .75rem; color: var(--muted); max-width: 20em; }
    .facts .count { display: inline-block; min-width: 2ch; text-align: right; margin: 0; max-width: none; color: inherit; font-variant-numeric: tabular-nums; }
    @media (max-width: 700px) { .facts { grid-template-columns: 1fr; gap: 1.5rem; } }
    .quote { margin-top: clamp(4rem, 8vw, 6.5rem); margin-left: clamp(0rem, 24vw, 22rem); max-width: 30em; }
    .quote blockquote p { font-size: clamp(1.625rem, 3vw, 2.5rem); font-weight: 500; line-height: 1.18; letter-spacing: -.03em; text-wrap: balance; }
    .quote figcaption { margin-top: 1.25rem; color: var(--muted); }
    .quote__permit { margin-top: .35rem; font-size: .875rem; color: var(--muted); }
    .nda { margin-top: 2.5rem; margin-left: clamp(0rem, 24vw, 22rem); font-size: .9375rem; color: var(--muted); }
    @media (max-width: 800px) { .quote, .nda { margin-left: 0; } }

    /* ── Contact ────────────────────────────────────────────── */
    .contact { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(3rem, 7vw, 6rem); align-items: start; }
    .contact__sub { margin-top: 1.25rem; color: var(--muted); max-width: 32em; }
    .contact__actions { margin-top: 2.25rem; display: flex; flex-direction: column; align-items: flex-start; gap: 1rem; }
    .contact__wa { color: var(--muted); }
    .contact__wa a { color: var(--ink); font-weight: 600; text-underline-offset: 4px; display: inline-flex; align-items: center; min-height: 44px; }
    .form { display: flex; flex-direction: column; gap: 1.375rem; background: var(--paper); border: 1px solid var(--line); border-radius: 20px; padding: clamp(1.5rem, 3vw, 2.25rem); }
    .field { display: flex; flex-direction: column; gap: .5rem; }
    .field label { font-size: .9375rem; font-weight: 500; }
    .field input, .field textarea {
      font: inherit; font-size: 1rem; color: var(--ink);
      background: #fff; border: 1px solid #8E8E96; border-radius: var(--r-field);
      padding: .85rem 1rem; min-height: 52px; width: 100%;
      transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
    }
    .field input:hover, .field textarea:hover { border-color: var(--ink); }
    .field textarea { min-height: 140px; resize: vertical; }
    .field input::placeholder, .field textarea::placeholder { color: #6B6B72; }
    .field input:focus-visible, .field textarea:focus-visible { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 28%, transparent); }
    .form .btn { align-self: stretch; }
    .form__status { font-size: .9375rem; color: var(--accent-ink); background: color-mix(in srgb, var(--accent) 9%, var(--paper)); border-radius: var(--r-field); padding: .85rem 1rem; }
    .form__status:empty { display: none; }
    @media (max-width: 860px) { .contact { grid-template-columns: 1fr; } }

    /* ── Mission & vision ───────────────────────────────────── */
    .mv { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(2.5rem, 6vw, 5rem); margin-top: clamp(1.5rem, 3vw, 2.5rem); }
    .mv > div { border-top: 1px solid var(--line); padding-top: 1.5rem; }
    .mv h3 { font-size: .9375rem; font-weight: 500; color: var(--muted); margin-bottom: 1rem; }
    .mv p { font-size: clamp(1.375rem, 2.3vw, 1.875rem); font-weight: 450; line-height: 1.3; letter-spacing: -.025em; text-wrap: balance; }
    @media (max-width: 760px) { .mv { grid-template-columns: 1fr; } }

    /* ── Footer ─────────────────────────────────────────────── */
    .footer { border-top: 1px solid var(--line); padding-block: 3rem 2.5rem; font-size: .9375rem; color: var(--muted); }
    .footer__top { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1rem 2rem; }
    .footer__brand { color: var(--ink); font-weight: 700; letter-spacing: .2em; }
    .footer__brand span { font-weight: 400; letter-spacing: 0; color: var(--muted); margin-left: .5rem; }
    .footer nav ul { display: flex; flex-wrap: wrap; gap: 0 .25rem; }
    .footer nav a, .footer__wa a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 .6rem; text-decoration: none; color: var(--muted); border-radius: 8px; transition: color .2s var(--ease); }
    .footer nav a:hover, .footer__wa a:hover, .footer nav a[aria-current="page"] { color: var(--ink); }
    .footer__bottom { margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 2rem; align-items: center; }

    /* ══ v3 motion layer ═══════════════════════════════════════
       Gated by html.js (set in <head> only when motion is allowed) and
       prefers-reduced-motion. Without JS or with reduced motion, everything
       renders in its final state. Only transform / opacity / filter animate. */
    .scrollbar { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 150; background: var(--accent); transform: scaleX(0); transform-origin: 0 50%; pointer-events: none; will-change: transform; }
    @keyframes scrollbar-grow { from { transform: scaleX(0); } to { transform: scaleX(1); } }
    @supports (animation-timeline: scroll()) {
      .scrollbar.is-css { animation: scrollbar-grow linear both; animation-timeline: scroll(root block); }
    }
    @media (prefers-reduced-motion: reduce) { .scrollbar { display: none; } }

    @media (prefers-reduced-motion: no-preference) {
      /* generic reveal (batch-staggered by JS through --bd, in ms) */
      .js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .9s var(--ease), transform 1s var(--ease); transition-delay: calc(var(--bd, 0) * 1ms); }
      .js .reveal.is-in { opacity: 1; transform: none; }
      /* section headings: rise + blur-to-sharp (blur only on large screens) */
      .js .h2 { opacity: 0; transform: translateY(28px); transition: opacity 1s var(--ease), transform 1.1s var(--ease), filter 1s var(--ease); transition-delay: calc(var(--bd, 0) * 1ms + 60ms); }
      .js .h2.is-in { opacity: 1; transform: none; filter: none; }
      @media (min-width: 901px) and (hover: hover) { .js .h2:not(.is-in) { filter: blur(8px); } }
    }

    /* ── Phone chat (atención con IA) ─────────────────────────── */
    .product .phone__head { gap: .6rem; padding: .7rem 1rem; }
    .product .phone__avatar { width: 30px; height: 30px; font-size: .8rem; }
    .product .phone__meta { font-size: .8rem; color: #F5F4EF; font-weight: 600; }
    .product .chat { gap: .45rem; padding: .9rem .75rem 1.1rem; }
    .product .msg { font-size: .84rem; line-height: 1.36; padding: .42rem .68rem; }
    .turn { position: relative; align-self: flex-start; max-width: 84%; }
    .turn .msg { max-width: 100%; }
    .typing { display: none; }
    .pill { display: inline-block; background: var(--accent); color: #FFFFFF; font-weight: 600; font-size: .8125rem; border-radius: 999px; padding: .1rem .55rem; margin: 0 .1rem .15rem 0; }

    .sa-stage { justify-self: center; width: 100%; display: flex; flex-direction: column; align-items: center; }
    .sa-sticky { width: 100%; display: flex; flex-direction: column; align-items: center; }
    .sa-devices { display: flex; flex-wrap: wrap; justify-content: center; gap: 3rem 2rem; width: 100%; }
    .sa-devices > .phone { width: min(330px, 100%); }
    .sa-controls { display: none; }
    .sa-tabs { display: none; grid-template-columns: 1fr 1fr; position: relative; padding: 4px; margin-bottom: 1.75rem; border: 1px solid #26262C; border-radius: 999px; background: #0B0B0C; }
    .sa-tabs::before { content: ""; position: absolute; top: 4px; bottom: 4px; left: 4px; width: calc(50% - 4px); border-radius: 999px; background: #F5F4EF; transition: transform .5s var(--ease); }
    .sa-tabs[data-active="call"]::before { transform: translateX(100%); }
    .sa-tabs button { position: relative; z-index: 1; min-height: 44px; min-width: 7.5rem; padding: 0 1.1rem; border-radius: 999px; font-size: .9375rem; font-weight: 500; color: #9A9AA2; transition: color .3s var(--ease); }
    .sa-tabs button:hover { color: #F5F4EF; }
    .sa-tabs button[aria-selected="true"] { color: #0B0B0C; }
    .dark .sa-tabs button:focus-visible { outline-offset: 2px; border-radius: 999px; }
    .call { position: relative; background: radial-gradient(130% 55% at 50% 0%, #241B3A 0%, #0B0B0C 70%); }
    .call__ring { display: none; }
    .call__bar { display: flex; align-items: center; gap: .65rem; margin: .35rem .75rem 0; padding: .6rem .75rem; border-radius: 16px; background: rgba(255,255,255,.07); color: #F5F4EF; }
    .call__mini { flex: none; width: 34px; height: 34px; border-radius: 50%; background: var(--accent); box-shadow: inset 0 0 0 6px var(--accent), inset 0 0 0 7.5px #F5F4EF; }
    .call__id { flex: 1; min-width: 0; }
    .call__name { font-size: .9rem; font-weight: 600; line-height: 1.2; }
    .call__state { font-size: .72rem; color: #B8B7C0; line-height: 1.3; }
    .call__timer { font-variant-numeric: tabular-nums; color: #9A9AA2; margin-left: .2rem; }
    .wave { display: flex; align-items: center; gap: 2.5px; height: 22px; flex: none; }
    .wave i { width: 2.5px; height: 100%; border-radius: 2px; background: #A176F2; transform: scaleY(.35); }
    .wave i:nth-child(2n) { transform: scaleY(.7); } .wave i:nth-child(5n) { transform: scaleY(.95); } .wave i:nth-child(7n) { transform: scaleY(.5); }
    .call__avatar { position: relative; width: 76px; height: 76px; border-radius: 50%; background: var(--accent); box-shadow: inset 0 0 0 10px var(--accent), inset 0 0 0 12px #F5F4EF; }
    .call__avatar i { position: absolute; inset: 0; border-radius: 50%; border: 1.5px solid #A176F2; opacity: 0; }
    .call__btns { display: flex; justify-content: space-evenly; width: 100%; position: absolute; left: 0; bottom: 2.5rem; }
    .call__btns i { display: grid; place-items: center; width: 60px; height: 60px; border-radius: 50%; color: #FFFFFF; }
    .call__no { background: #3A3A42; } .call__yes { background: var(--accent); }
    .vchat { display: flex; flex-direction: column; gap: .5rem; padding: .7rem .75rem 1rem; }
    .vb { display: flex; flex-direction: column; align-items: flex-end; max-width: 88%; align-self: flex-end; }
    .vb--ai { align-items: flex-start; align-self: flex-start; }
    .vb__bubble { display: inline-flex; align-items: center; gap: .45rem; padding: .35rem .6rem .35rem .4rem; border-radius: 14px; border-top-right-radius: 4px; background: #7C3AED; }
    .vb--ai .vb__bubble { background: #26262C; border-top-right-radius: 14px; border-top-left-radius: 4px; }
    .vb__play { display: grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; background: rgba(255,255,255,.18); color: #FFFFFF; padding-left: 1px; }
    .vb__wave { display: flex; align-items: center; gap: 2px; height: 14px; }
    .vb__wave i { width: 2px; height: 100%; border-radius: 1px; background: #F5F4EF; opacity: .85; transform: scaleY(.4); }
    .vb__wave i:nth-child(3n) { transform: scaleY(.8); } .vb__wave i:nth-child(4n+1) { transform: scaleY(.6); } .vb__wave i:nth-child(5n+2) { transform: scaleY(1); }
    .vb__text { margin-top: .2rem; font-size: .78rem; line-height: 1.35; color: #E4E3DE; text-align: right; }
    .vb--ai .vb__text { text-align: left; }
    .vb__text b { font-weight: 600; color: #9A9AA2; margin-right: .2rem; }
    .vb--ai .vb__text b { color: #A176F2; }
    /* "Ilustrativo" badge: high-contrast, beside the phone, in both modes */
    .product .phone__tag { top: 22px; right: -22px; display: inline-flex; align-items: center; gap: .45rem; background: #F5F4EF; color: #0B0B0C; border: 0; font-size: .875rem; font-weight: 600; padding: .45rem .95rem .45rem .8rem; box-shadow: 0 10px 28px -10px rgba(0,0,0,.7); }
    .product .phone__tag::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
    @media (max-width: 600px) { .product .phone__tag { right: -4px; top: -16px; } }

    /* ── Hero: method progress + parallax hooks ─────────────── */
    .hero__copy, .method { translate: 0 var(--py, 0px); }
    .method__step::before { content: ""; position: absolute; z-index: 1; left: calc(.75rem - .75px); top: calc(1.125rem + 1.05rem); bottom: calc(-1.125rem - .3rem); width: 1.5px; background: var(--accent); transform: scaleY(0); transform-origin: 50% 0; display: none; }
    .method__step:last-child::before { display: none !important; }

    @media (prefers-reduced-motion: no-preference) {
      /* hero steps: dim until activated one by one */
      .js .method__step::before { display: block; transition: transform .55s cubic-bezier(.65,0,.35,1) .18s; }
      .js .method__step.is-active::before { transform: scaleY(1); }
      .js .method__step > div, .js .method__num { opacity: .38; transition: opacity .5s var(--ease); }
      .js .method__step.is-active > div, .js .method__step.is-active .method__num { opacity: 1; }
      .js .method__step:not(.method__step--entry) .method__dot { border-color: #B9B6AC; }
      .js .method__step.is-active .method__dot { background: var(--accent); border-color: var(--accent); animation: dot-pop .6s var(--ease); }
      @keyframes dot-pop { 0% { transform: scale(.6); } 55% { transform: scale(1.45); } 100% { transform: scale(1); } }
      .hero__copy, .method { will-change: translate; }

      /* soluciones rows */
      .js .sol li { position: relative; }
      .js .sol li::before { content: ""; position: absolute; left: 0; right: 0; top: -1px; height: 1px; background: var(--accent); transform: scaleX(0); transform-origin: 0 50%; opacity: 0; }
      .js .sol li.is-in::before { animation: sweep 1.5s var(--ease) calc(var(--bd, 0) * 1ms) both; }
      @keyframes sweep { 0% { transform: scaleX(0); opacity: 1; } 55% { transform: scaleX(1); opacity: 1; } 100% { transform: scaleX(1); opacity: 0; } }
      .js .sol__num { opacity: 0; transform: translateX(-18px); transition: opacity .7s var(--ease), transform .9s var(--ease); transition-delay: calc(var(--bd, 0) * 1ms + 220ms); }
      .js .sol li.is-in .sol__num { opacity: 1; transform: none; }
      @media (hover: hover) {
        .sol h3, .sol li p { transition: transform .45s var(--ease); }
        .js .sol li.is-in:hover .sol__num { transform: translateX(4px); transition-delay: 0s; }
        .sol li:hover h3 { transform: translateX(4px); }
        .sol li:hover p { transform: translateX(2px); }
      }

      /* cómo pensamos: accent line draws with scroll */
      .js .think__grid { position: relative; }
      .js .think__grid::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px; margin-top: -.5px; background: var(--accent); transform: scaleX(var(--tp, 0)); transform-origin: 0 50%; z-index: 1; }
      @keyframes draw-x { from { transform: scaleX(0); } to { transform: scaleX(1); } }
      @supports (animation-timeline: view()) {
        .js .think__grid.is-css::before { animation: draw-x linear both; animation-timeline: view(); animation-range: entry 10% cover 50%; }
      }
      @media (max-width: 560px) { .js .think__grid::before { display: none; } }

      /* case facts */
      .js .facts strong { opacity: 0; transform: translateY(18px) scale(.94); transform-origin: 0 100%; transition: opacity .8s var(--ease), transform 1s var(--ease), filter .8s var(--ease); transition-delay: calc(var(--bd, 0) * 1ms + 150ms); }
      .js .facts li.is-in strong { opacity: 1; transform: none; filter: none; }
      @media (min-width: 901px) and (hover: hover) { .js .facts li:not(.is-in) strong { filter: blur(6px); } }

      /* ── Atención con IA scene (tabs + pinned scroll) ── */
      .js .sa-tabs { display: inline-grid; }
      .js .sa-controls { display: flex; justify-content: center; align-items: center; min-height: 52px; margin-top: 1.5rem; }
      .sa-controls [hidden] { display: none !important; }
      .sa-next { display: inline-flex; align-items: center; gap: .6rem; min-height: 44px; padding: 0 1.2rem 0 1rem; border-radius: 999px; background: #F5F4EF; color: #0B0B0C; font-size: .9375rem; font-weight: 600; letter-spacing: -.01em; transition: transform .35s var(--ease); animation: chip 2.4s var(--ease) infinite; }
      .sa-next:hover { transform: translateY(-1px); }
      .sa-next:active { transform: scale(.97); }
      .sa-next__dot { position: relative; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
      .sa-next__dot::after { content: ""; position: absolute; inset: 0; border-radius: 50%; background: var(--accent); animation: dotpulse 1.6s var(--ease) infinite; }
      @keyframes dotpulse { from { transform: scale(1); opacity: .7; } to { transform: scale(3); opacity: 0; } }
      @keyframes chip { 0%, 70%, 100% { transform: none; } 80% { transform: translateY(-2px); } 90% { transform: translateY(0); } }
      .sa-end { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: .5rem 1.25rem; animation: rise .5s var(--ease) both; }
      .sa-restart { min-height: 44px; padding: 0 1.2rem; border-radius: 999px; border: 1px solid #4A4A52; color: #F5F4EF; font-size: .9375rem; font-weight: 500; transition: border-color .25s var(--ease), transform .35s var(--ease); }
      .sa-restart:hover { border-color: #F5F4EF; }
      .sa-tovoice { font-size: .9375rem; }
      .dark .sa-controls button:focus-visible { outline-offset: 3px; border-radius: 999px; }
      .js .sa-devices { cursor: pointer; -webkit-tap-highlight-color: transparent; }
      .js .sa-devices { display: grid; width: auto; justify-content: center; position: relative; }
      .js .sa-devices > .phone { grid-area: 1 / 1; width: min(340px, calc(100vw - 2.5rem)); animation: none; transition: opacity .4s var(--ease), visibility 0s linear .4s; }
      .js .sa-devices .phone__screen > :not(.phone__status):not(.call__ring) { transition: transform .4s var(--ease), opacity .4s var(--ease); }
      .js .sa-devices > .phone--wa:not(.is-current) .phone__screen > :not(.phone__status) { transform: translateX(-26px) scale(.96); opacity: 0; }
      .js .sa-devices > .phone--call:not(.is-current) .phone__screen > :not(.phone__status):not(.call__ring) { transform: translateX(26px) scale(.96); opacity: 0; }
      .js .sa-devices > .phone--call:not(.is-current) .call__ring { opacity: 0; transform: translateX(26px) scale(.96); }
      .js .sa-devices > .phone:not(.is-current) { opacity: 0; visibility: hidden; }
      .js .sa-devices > .phone.is-current { z-index: 1; transition-delay: 0s; }
      .js .sa-devices .phone__screen { height: 780px; height: min(780px, calc(100vh - var(--nav-h) - 120px)); height: min(780px, calc(100svh - var(--nav-h) - 120px)); min-height: 0; }   /* v17 (H-42): never taller than the viewport; if shorter, the chat scrolls with autoscroll (motion.js setShift) */
        /* v16: was 620px; 8 WhatsApp messages (greeting + privacy link + handoff) and the 7-bubble voice script need ~130-160px more so the finished demo is not clipped */
      .js .product .chat > * { animation: none; }
      .js .product .chat, .js .product .vchat { position: relative; min-height: 0; overflow: hidden; }
      .js .product .vchat { flex: 1 1 auto; }
      .js .product .chat > .msg, .js .product .chat > .turn, .js .product .vchat > .cap { translate: 0 var(--sa-shift, 0px); }
      .js .product .turn { transition: translate .45s var(--ease); }
      .js .product .msg { opacity: 0; visibility: hidden; transform: translateY(12px) scale(.94); transition: opacity .45s var(--ease), transform .55s var(--ease), visibility 0s linear .55s, translate .45s var(--ease); }
      .js .product .msg--out { transform-origin: 100% 100%; }
      .js .product .msg--in { transform-origin: 0 100%; }
      .js .product .msg.on { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
      .js .product .typing { display: inline-flex; position: absolute; left: 0; top: 0; gap: 4px; align-items: center; padding: .7rem .8rem; background: #26262C; border-radius: 12px; border-top-left-radius: 4px; opacity: 0; transform: scale(.8); transform-origin: 0 50%; transition: opacity .25s var(--ease), transform .35s var(--ease); }
      .js .product .typing.on { opacity: 1; transform: none; }
      .js .sa-static .msg, .js .sa-static .cap, .js .sa-static .pill, .js .sa-static .vb__text { opacity: 1 !important; visibility: visible !important; transform: none !important; }
      .js .sa-static .typing { display: none; }
      .typing i { width: 6px; height: 6px; border-radius: 50%; background: #9A9AA2; }
      .js .product .typing.on i { animation: blink 1s ease-in-out infinite; }
      .typing i:nth-child(2) { animation-delay: .15s !important; }
      .typing i:nth-child(3) { animation-delay: .3s !important; }
      @keyframes blink { 0%, 80%, 100% { transform: translateY(0); opacity: .45; } 40% { transform: translateY(-3px); opacity: 1; } }
      .js .product .pill { transform: scale(.4); opacity: 0; transition: transform .6s cubic-bezier(.34,1.56,.64,1), opacity .3s var(--ease); }
      .js .product .pill.on { transform: none; opacity: 1; }

      /* call screen states: (default) → .ringing → .answered (+ .live while talking) */
      .js .call__ring { display: flex; flex-direction: column; align-items: center; gap: .9rem; position: absolute; inset: 46px 0 0; z-index: 2; padding-top: 3.5rem; color: #F5F4EF; text-align: center; background: radial-gradient(130% 60% at 50% 0%, #241B3A 0%, #0B0B0C 72%); transition: opacity .5s var(--ease), transform .6s var(--ease), visibility 0s linear .6s; }
      .js .call__incoming { font-size: .875rem; color: #B8B7C0; }
      .js .call__who { font-size: 1.625rem; font-weight: 600; letter-spacing: -.02em; }
      .js .call:not(.answered) .call__ring { transition: opacity .4s var(--ease), transform .4s var(--ease), visibility 0s; }
      .js .call.answered .call__ring { opacity: 0; transform: scale(1.06); visibility: hidden; }
      .js .call.ringing:not(.answered) .call__avatar i { animation: ring 1.8s var(--ease) infinite; }
      .js .call.ringing:not(.answered) .call__avatar i + i { animation-delay: .6s; }
      @keyframes ring { from { transform: scale(1); opacity: .7; } to { transform: scale(2.1); opacity: 0; } }
      .js .call.ringing:not(.answered) .call__yes { animation: nudge 1.2s var(--ease) infinite; }
      @keyframes nudge { 0%, 60%, 100% { transform: none; } 70% { transform: rotate(-12deg) scale(1.06); } 80% { transform: rotate(10deg) scale(1.06); } 90% { transform: rotate(-6deg); } }
      .js .call__bar { opacity: 0; transform: translateY(-10px); transition: opacity .5s var(--ease) .2s, transform .6s var(--ease) .2s; }
      .js .call.answered .call__bar { opacity: 1; transform: none; }
      .js .call.live .wave i { animation: wave .9s ease-in-out infinite alternate; }
      .js .call.live .vb.now .vb__wave i { animation: wave .8s ease-in-out infinite alternate; }
      .wave i:nth-child(3n), .vb__wave i:nth-child(3n) { animation-duration: .7s !important; }
      .wave i:nth-child(3n+1), .vb__wave i:nth-child(3n+1) { animation-duration: 1.1s !important; animation-delay: -.3s !important; }
      .wave i:nth-child(4n), .vb__wave i:nth-child(4n) { animation-delay: -.55s !important; }
      @keyframes wave { from { transform: scaleY(.18); } to { transform: scaleY(1); } }
      .js .cap { opacity: 0; visibility: hidden; transform: translateY(10px) scale(.96); transition: opacity .45s var(--ease), transform .55s var(--ease), visibility 0s linear .55s, translate .45s var(--ease); transform-origin: 100% 0; }
      .js .cap.vb--ai { transform-origin: 0 0; }
      .js .cap.on { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
      .js .vb__text { opacity: 0; transition: opacity .5s var(--ease) .3s; }
      .js .cap.on .vb__text { opacity: 1; }

      /* mobile / tablet: simple in-view entrance */
      @media (max-width: 900px) {
        .js .product .sa-stage { opacity: 0; transform: translateY(40px) scale(.95); transition: opacity .9s var(--ease), transform 1.1s var(--ease); }
        .js .product .sa-stage.is-in { opacity: 1; transform: none; }

        /* scroll-driven pin (touch, <= 900px): sticky stage inside a taller track; scroll position = conversation progress.
           7 steps x 40svh + 0.6 step hold at the end. svh = stable on iOS (no URL-bar jank). */
        .js .sa-pin .sa-stage { opacity: 1; transform: none; transition: none; justify-content: flex-start;
          height: calc(404vh - var(--nav-h) - 20px); height: calc(404svh - var(--nav-h) - 20px); }
        .js .sa-pin .sa-sticky { position: sticky; top: calc(var(--nav-h) + 10px); justify-content: center;
          height: calc(100vh - var(--nav-h) - 20px); height: calc(100svh - var(--nav-h) - 20px);
          opacity: 0; transform: translateY(32px) scale(.96); transition: opacity .8s var(--ease), transform 1s var(--ease); }
        .js .sa-pin .sa-stage.is-in .sa-sticky { opacity: 1; transform: none; }
        .js .sa-pin .sa-tabs { margin-bottom: 1.5rem; }
        .js .sa-pin .sa-controls { display: none; }
        .js .sa-pin .sa-devices .phone__screen { height: min(620px, calc(100vh - var(--nav-h) - 170px)); height: min(620px, calc(100svh - var(--nav-h) - 170px)); }
      }

      /* desktop: 3D phone entrance tied to scroll (no pin) */
      @media (min-width: 901px) {
        .js .product .sa-stage { perspective: 1400px; }
        .js .product .sa-tabs, .js .product .sa-controls { opacity: var(--glow, 0); transform: translateY(calc((1 - var(--glow, 0)) * 16px)); }
        .js .product .sa-devices { transform: translateY(var(--ty, 60px)) rotateX(var(--rx, 16deg)) rotateY(var(--ry, -14deg)) scale(var(--sc, .86)); transform-origin: 50% 50%; will-change: transform; }
        .js .product .sa-devices::before { content: ""; position: absolute; inset: 6% -22% 2%; z-index: -1; border-radius: 50%; background: radial-gradient(closest-side, rgba(124,58,237,.32), rgba(124,58,237,0)); opacity: var(--glow, 0); pointer-events: none; }
      }
    }