/* ══════════════════════════════════════
       TOKENS — papel cálido, tinta bosque, cobre
    ══════════════════════════════════════ */
    :root {
      --paper:        #f7f3e9;
      --paper-dim:    #efe8d6;
      --paper-card:   #fffdf7;
      --ink:          #16261d;
      --ink-soft:     #33443a;
      --muted:        #626b5e; /* darkened from #6c7568 — 4.33:1 on --paper failed WCAG AA, this gives ~5:1 */
      --forest:       #1d5c3f;
      --forest-bright:#2f8058;
      --forest-deep:  #0b2016;
      --forest-deep2: #071510;
      --gold:         #a8752e; /* kept for decorative/non-text use (borders, dots) — already ≥3:1 */
      --gold-text:    #8a5f26; /* darker variant for gold used AS text on --paper — #a8752e gave 3.61:1, this gives ~5:1 */
      --gold-bright:  #cc9640;
      --line:         rgba(22,38,29,.15);
      --line-soft:    rgba(22,38,29,.08);
      --line-invert:  rgba(247,243,233,.16);
      --shadow-card:  0 24px 48px rgba(22,38,29,.09);
      --cut: 16px;
      --serif: 'Fraunces', 'Iowan Old Style', Georgia, serif;
      --sans: 'Archivo', 'Segoe UI', Arial, sans-serif;
    }

    /* ══════════════════════════════════════ RESET ══════════════════════════════════════ */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--sans); color: var(--ink); background: var(--paper);
      line-height: 1.6; position: relative; overflow-x: hidden;
    }
    a { text-decoration: none; color: inherit; }
    img { display: block; max-width: 100%; }
    input, textarea, select { font-family: inherit; font-size: inherit; }
    .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;
    }
    ::selection { background: var(--gold); color: var(--paper-card); }
    :focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 2px; }

    /* film-grain texture, fixed over everything, purely decorative */
    body::before {
      content: ''; position: fixed; inset: 0; z-index: 999; pointer-events: none;
      opacity: .05; mix-blend-mode: multiply;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    }

    /* reading-progress hairline */
    .scroll-progress {
      position: fixed; top: 0; left: 0; height: 3px; width: 0%;
      background: linear-gradient(90deg, var(--gold), var(--forest-bright));
      z-index: 1000; transition: width .1s linear;
    }

    /* ══════════════════════════════════════ LAYOUT ══════════════════════════════════════ */
    .container { width: min(1180px, 92vw); margin: auto; }
    .section    { padding: 108px 0; }
    .center     { text-align: center; }

    /* ══════════════════════════════════════ NAV ══════════════════════════════════════ */
    .nav {
      position: sticky; top: 0;
      background: rgba(247,243,233,.92);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--line);
      z-index: 100;
    }
    .nav-inner {
      height: 84px;
      display: flex; align-items: center; justify-content: space-between; gap: clamp(12px, 2vw, 24px);
    }
    .brand { display: flex; align-items: center; gap: 13px; min-width: 0; }
    .nav-inner .brand { flex-shrink: 0; }
    .brand-mark {
      width: 46px; height: 46px; border-radius: 6px;
      background: var(--paper-card); border: 1px solid var(--line);
      object-fit: contain; padding: 5px;
      transition: transform .45s cubic-bezier(.2,.8,.2,1), border-color .3s;
      flex-shrink: 0;
    }
    .brand:hover .brand-mark { transform: rotate(-6deg) scale(1.06); border-color: var(--gold); }
    .brand-name { font-family: var(--serif); font-size: 16px; font-weight: 560; line-height: 1.15; color: var(--ink); }
    .brand-sub  { display: block; color: var(--muted); font-weight: 600; font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase; margin-top: 2px; }
    .nav-inner .brand-name, .nav-inner .brand-sub { white-space: nowrap; }

    .nav-links { display: flex; gap: clamp(12px, 1.6vw, 30px); flex-shrink: 1; }
    .nav-links a {
      position: relative; font-size: clamp(11px, 0.85vw, 12.5px); font-weight: 600; letter-spacing: .05em;
      text-transform: uppercase; color: var(--ink-soft); padding: 8px 0; white-space: nowrap;
    }
    .nav-links a::after {
      content: ''; position: absolute; left: 0; right: 0; bottom: 2px; height: 1.5px;
      background: var(--gold); transform: scaleX(0); transform-origin: left;
      transition: transform .35s cubic-bezier(.2,.8,.2,1);
    }
    .nav-links a:hover { color: var(--ink); }
    .nav-links a:hover::after { transform: scaleX(1); }

    .hamburger {
      display: none; flex-direction: column; justify-content: center;
      gap: 5px; width: 36px; height: 36px; cursor: pointer; flex-shrink: 0;
      background: none; border: none; padding: 4px;
    }
    .hamburger span {
      display: block; height: 2px; background: var(--ink);
      border-radius: 2px; transition: transform .3s, opacity .3s;
    }
    .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    .mobile-menu {
      display: none;
      position: fixed; top: 84px; left: 0; right: 0; bottom: 0;
      background: rgba(247,243,233,.98);
      backdrop-filter: blur(12px);
      z-index: 99;
      flex-direction: column;
      align-items: center; justify-content: center;
      gap: 26px;
    }
    .mobile-menu.open { display: flex; }
    .mobile-menu a.mobile-link {
      font-family: var(--serif); font-size: 26px; font-weight: 500; color: var(--ink);
      opacity: 0; transform: translateY(14px);
      transition: color .2s, opacity .4s ease, transform .4s ease;
    }
    .mobile-menu.open a.mobile-link { opacity: 1; transform: translateY(0); }
    .mobile-menu.open a.mobile-link:nth-child(1) { transition-delay: .04s; }
    .mobile-menu.open a.mobile-link:nth-child(2) { transition-delay: .08s; }
    .mobile-menu.open a.mobile-link:nth-child(3) { transition-delay: .12s; }
    .mobile-menu.open a.mobile-link:nth-child(4) { transition-delay: .16s; }
    .mobile-menu.open a.mobile-link:nth-child(5) { transition-delay: .2s; }
    .mobile-menu.open a.mobile-link:nth-child(6) { transition-delay: .24s; }
    .mobile-menu.open a.mobile-link:nth-child(7) { transition-delay: .28s; }
    .mobile-menu.open a.mobile-link:nth-child(8) { transition-delay: .32s; }
    .mobile-menu a.mobile-link:hover { color: var(--forest); }
    .mobile-menu .btn-primary {
      opacity: 0; transform: translateY(14px);
      transition: opacity .4s ease .36s, transform .4s ease .36s;
    }
    .mobile-menu.open .btn-primary { opacity: 1; transform: translateY(0); }

    /* ══════════════════════════════════════ BUTTONS ══════════════════════════════════════ */
    .btn-primary {
      position: relative; display: inline-flex; align-items: center; gap: 10px;
      background: var(--forest); color: var(--paper);
      padding: 16px 28px 16px 24px; font-weight: 700; font-size: 14px;
      white-space: nowrap; flex-shrink: 0;
      letter-spacing: .02em; border: none; cursor: pointer; overflow: hidden;
      clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
      transition: transform .3s cubic-bezier(.2,.8,.2,1), color .3s;
      z-index: 1;
    }
    .btn-primary::before {
      content: ''; position: absolute; inset: 0; background: var(--gold);
      transform: translateX(-101%); transition: transform .4s cubic-bezier(.2,.8,.2,1);
      z-index: -1;
    }
    .btn-primary:hover::before { transform: translateX(0); }
    .btn-primary:hover { transform: translateY(-2px); }
    .btn-primary:active { transform: translateY(0); }
    .btn-primary .arrow { transition: transform .3s cubic-bezier(.2,.8,.2,1); }
    .nav-cta { font-size: 13px; padding: 12px 20px 12px 18px; --cut: 12px; }
    .btn-primary:hover .arrow { transform: translateX(4px); }

    .btn-secondary {
      position: relative; display: inline-flex; align-items: center; gap: 8px;
      background: none; border: none; cursor: pointer;
      padding: 16px 2px; font-weight: 700; font-size: 14px; color: var(--ink);
    }
    .btn-secondary::after {
      content: ''; position: absolute; left: 2px; right: 2px; bottom: 10px; height: 1.5px;
      background: var(--ink); transform: scaleX(1); transform-origin: right;
      transition: transform .35s cubic-bezier(.2,.8,.2,1);
    }
    .btn-secondary:hover::after { transform-origin: left; transform: scaleX(0); animation: underline-in .5s cubic-bezier(.2,.8,.2,1) forwards; }
    @keyframes underline-in {
      0% { transform-origin: left; transform: scaleX(0); }
      100% { transform-origin: left; transform: scaleX(1); }
    }
    .btn-secondary:hover { color: var(--forest); }

    /* ══════════════════════════════════════ KICKER / TITLE / DESC ══════════════════════════════════════ */
    .kicker {
      font-size: 11.5px; letter-spacing: .3em; text-transform: uppercase;
      color: var(--gold-text); font-weight: 700; margin-bottom: 16px;
      display: flex; align-items: center; gap: 10px; justify-content: center;
    }
    .kicker::before { content: ''; width: 22px; height: 1.5px; background: var(--gold); }
    .contact-info .kicker, #beneficios-heading ~ .kicker, .return-grid .kicker,
    .contact-grid .kicker { justify-content: flex-start; }
    .title {
      font-family: var(--serif); font-weight: 560; font-size: clamp(1.9rem, 3.4vw, 2.8rem);
      line-height: 1.12; letter-spacing: -.01em;
      margin: 0 auto 20px; max-width: 780px;
    }
    .desc {
      color: var(--muted); line-height: 1.85; font-size: 16.5px;
      max-width: 680px; margin: 0 auto;
    }

    /* ══════════════════════════════════════ HERO ══════════════════════════════════════ */
    .hero {
      position: relative; overflow: hidden;
      background: var(--paper);
      padding: 108px 0 128px;
    }
    .hero::before {
      content: ''; position: absolute; inset: 0; pointer-events: none;
      background-image:
        linear-gradient(var(--line-soft) 1px, transparent 1px),
        linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
      background-size: 56px 56px;
      -webkit-mask-image: radial-gradient(ellipse 70% 60% at 30% 20%, black, transparent 75%);
              mask-image: radial-gradient(ellipse 70% 60% at 30% 20%, black, transparent 75%);
    }
    .hero::after {
      content: ''; position: absolute; top: -12%; right: -8%; width: 46%; padding-top: 46%;
      background: radial-gradient(circle, rgba(29,92,63,.10), transparent 70%);
      pointer-events: none;
    }
    .hero-grid {
      position: relative; display: grid; grid-template-columns: 1.08fr .92fr;
      gap: 76px; align-items: center;
    }
    .eyebrow {
      display: inline-flex; align-items: center; gap: 10px;
      padding: 9px 16px 9px 12px;
      border: 1px solid var(--line); background: var(--paper-card);
      color: var(--ink-soft);
      font-size: 11.5px; font-weight: 700; letter-spacing: .16em;
      text-transform: uppercase; margin-bottom: 30px;
    }
    .eyebrow-dot { width: 7px; height: 7px; background: var(--gold); border-radius: 1px; flex-shrink: 0; }
    .hero h1 {
      font-family: var(--serif); font-weight: 460;
      font-size: clamp(2.6rem, 6vw, 4.5rem); line-height: .98;
      margin: 0 0 26px; letter-spacing: -.02em; color: var(--ink);
    }
    .hero h1 em { font-style: italic; font-weight: 560; color: var(--forest); }
    .lead {
      font-size: clamp(1.15rem, 1.6vw, 1.4rem); line-height: 1.45; color: var(--ink-soft);
      font-weight: 600; margin-bottom: 20px; max-width: 560px;
    }
    .sub {
      font-size: 15.5px; line-height: 1.9; color: var(--muted); max-width: 560px;
    }
    .buttons { display: flex; align-items: center; gap: 30px; margin-top: 38px; flex-wrap: wrap; }

    /* hero dossier panel */
    .platform-card {
      position: relative;
      background: var(--paper-card); border: 1px solid var(--line);
      padding: 64px 52px 56px;
      clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%);
    }
    .logo-tile {
      border-bottom: 1px solid var(--line-soft);
      padding: 20px 4px 40px; display: flex; align-items: center; gap: 24px;
    }
    .logo-tile:last-of-type { border-bottom: none; }
    .logo-img {
      height: 60px; width: auto; object-fit: contain; flex-shrink: 0;
    }
    .logo-tile-fallback {
      font-family: var(--serif); font-size: 21px; font-weight: 560;
      color: var(--ink); letter-spacing: -.01em;
    }
    .logo-caption { font-size: 14px; color: var(--muted); margin-top: 4px; }
    .platform-card > p {
      text-align: left; font-size: 13px; font-weight: 600;
      color: var(--muted); margin-top: 28px; letter-spacing: .02em;
    }

    /* ══════════════════════════════════════ METRICS ══════════════════════════════════════ */
    .metrics {
      display: grid; grid-template-columns: repeat(4, 1fr);
      margin-top: 56px; border-top: 1px solid var(--line);
    }
    .metric {
      padding: 34px 22px; border-right: 1px solid var(--line);
      text-align: left; position: relative;
    }
    .metric:last-child { border-right: none; }
    .metric .card-num { margin-bottom: 14px; }
    .metric strong { display: block; font-size: 15px; font-weight: 700; }
    .metric p { color: var(--muted); font-size: 13px; line-height: 1.55; margin-top: 6px; }

    /* ══════════════════════════════════════ DARK SECTION ══════════════════════════════════════ */
    .dark {
      background: var(--forest-deep); color: var(--paper);
      position: relative; overflow: hidden;
    }
    .dark::before {
      content: ''; position: absolute; inset: 0; pointer-events: none; opacity: .5;
      background-image: linear-gradient(var(--line-invert) 1px, transparent 1px), linear-gradient(90deg, var(--line-invert) 1px, transparent 1px);
      background-size: 64px 64px;
      -webkit-mask-image: radial-gradient(ellipse 60% 70% at 85% 30%, black, transparent 70%);
              mask-image: radial-gradient(ellipse 60% 70% at 85% 30%, black, transparent 70%);
    }
    .dark .container { position: relative; }
    .dark .desc  { color: rgba(247,243,233,.68); }
    .dark .kicker { color: var(--gold-bright); }
    .dark .kicker::before { background: var(--gold-bright); }
    .dark .title { color: var(--paper); }

    .return-grid {
      display: grid; grid-template-columns: .9fr 1.1fr;
      gap: 76px; align-items: center;
    }
    .benefit-grid {
      display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 1px; background: var(--line-invert); border: 1px solid var(--line-invert);
    }
    .benefit { background: rgba(247,243,233,.04); padding: 22px 20px; }
    .benefit .check {
      width: 22px; height: 22px; border: 1px solid var(--gold-bright); border-radius: 50%;
      color: var(--gold-bright); font-weight: 800; font-size: 11px;
      display: flex; align-items: center; justify-content: center; margin-bottom: 14px;
    }
    .benefit strong { display: block; font-family: var(--serif); font-size: 15.5px; font-weight: 600; color: var(--paper); }
    .benefit p { font-size: 12.5px; color: rgba(247,243,233,.62); margin-top: 5px; }

    /* ══════════════════════════════════════ CARDS ══════════════════════════════════════ */
    .grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
    .grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .card {
      --mx: 50%; --my: 50%;
      position: relative; isolation: isolate; overflow: hidden;
      background: var(--paper-card); padding: 32px 28px;
      transition: box-shadow .35s ease;
    }
    .card::before {
      content: ''; position: absolute; inset: 0; z-index: -1; opacity: 0;
      background: radial-gradient(320px circle at var(--mx) var(--my), rgba(168,117,46,.10), transparent 65%);
      transition: opacity .4s ease;
    }
    .card:hover::before { opacity: 1; }
    .card:hover { box-shadow: var(--shadow-card); z-index: 2; }
    .card-num {
      font-family: var(--serif); font-size: 15px; font-weight: 700; color: var(--gold-text);
      letter-spacing: .04em; margin-bottom: 20px; display: block;
    }
    .card h3 { font-family: var(--serif); font-size: 20px; font-weight: 560; margin-bottom: 11px; letter-spacing: -.01em; }
    .card p  { color: var(--muted); line-height: 1.65; font-size: 14px; }
    .tags    { display: flex; flex-wrap: wrap; gap: 4px 0; margin-top: 18px; }
    .tag {
      color: var(--ink-soft); font-size: 11px; font-weight: 700;
      letter-spacing: .04em; text-transform: uppercase;
    }
    .tag:not(:last-child)::after { content: '·'; color: var(--gold); margin: 0 8px; font-weight: 700; }

    /* ══════════════════════════════════════ INFRA BAND ══════════════════════════════════════ */
    .infra-band {
      margin-top: 1px;
      background: var(--forest-deep2); color: var(--paper);
      padding: 52px 44px; position: relative; overflow: hidden;
    }
    .infra-band::before {
      content: ''; position: absolute; inset: 0; pointer-events: none; opacity: .4;
      background-image: linear-gradient(var(--line-invert) 1px, transparent 1px), linear-gradient(90deg, var(--line-invert) 1px, transparent 1px);
      background-size: 64px 64px;
    }
    .infra-band-grid {
      position: relative; display: grid; grid-template-columns: .9fr 1.1fr;
      gap: 44px; align-items: center;
    }
    .title-small { font-family: var(--serif); font-size: clamp(1.5rem,2.6vw,2rem); line-height: 1.18; font-weight: 500; letter-spacing: -.01em; }
    .mini-list   { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line-invert); border: 1px solid var(--line-invert); }
    .mini-list span {
      display: flex; align-items: center; gap: 10px;
      background: rgba(7,21,16,.9);
      padding: 16px 18px; font-weight: 600; font-size: 13.5px;
    }
    .mini-list span::before {
      content: '✓'; color: var(--gold-bright); font-weight: 800; font-size: 12px;
      width: 20px; height: 20px; border: 1px solid var(--gold-bright); border-radius: 50%;
      display: flex; align-items: center; justify-content: center; flex-shrink: 0;
    }

    /* ══════════════════════════════════════ PLATAFORMAS ══════════════════════════════════════ */
    .platforms { display: flex; justify-content: center; }
    .platforms .card { padding: 48px 52px; max-width: 620px; width: 100%; border: 1px solid var(--line); }
    .platforms .logo-img { height: 40px; margin-bottom: 22px; }

    /* ══════════════════════════════════════ FUNNEL ══════════════════════════════════════ */
    .funnel { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
    .funnel::before {
      content: ''; position: absolute; top: 27px; left: 6%; right: 6%; height: 1px;
      background: var(--line-invert); z-index: 0;
      display: block;
    }
    .step { position: relative; padding: 0 20px 0 0; }
    .step-num {
      position: relative; z-index: 1;
      background: var(--forest-deep); border: 1.5px solid var(--gold-bright); color: var(--gold-bright);
      width: 54px; height: 54px; border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      font-family: var(--serif); font-weight: 600; font-size: 19px; margin-bottom: 22px;
    }
    .step h3 { font-family: var(--serif); font-size: 17px; font-weight: 560; margin-bottom: 9px; }
    .step p  { font-size: 13.5px; color: rgba(247,243,233,.62); line-height: 1.6; }

    /* ══════════════════════════════════════ CONTACTO ══════════════════════════════════════ */
    .contact-section { background: var(--paper-dim); }
    .contact-grid {
      display: grid; grid-template-columns: .82fr 1.18fr;
      gap: 60px; align-items: start;
    }
    .contact-info .title { margin-left: 0; max-width: none; }
    .contact-info .desc  { margin-left: 0; }
    .contact-details  { margin-top: 34px; display: flex; flex-direction: column; }
    .contact-item {
      display: flex; align-items: baseline; gap: 16px;
      font-size: 15px; font-weight: 600; color: var(--ink);
      padding: 16px 0; border-top: 1px solid var(--line);
    }
    .contact-item a:hover { color: var(--forest); }
    .contact-label {
      width: 84px; flex-shrink: 0; font-size: 11px; font-weight: 700;
      letter-spacing: .1em; text-transform: uppercase; color: var(--gold-text);
    }
    .contact-card {
      background: var(--paper-card); border: 1px solid var(--line); padding: 40px 38px 36px;
      clip-path: polygon(0 0, calc(100% - 34px) 0, 100% 34px, 100% 100%, 0 100%);
    }
    .contact-card h3 { font-family: var(--serif); font-size: 22px; margin-bottom: 26px; font-weight: 560; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 22px; }
    .full { grid-column: 1 / -1; }
    .field label {
      display: block; font-size: 11px; font-weight: 700; letter-spacing: .08em;
      text-transform: uppercase; color: var(--muted); margin-bottom: 8px;
    }
    .input {
      width: 100%; height: 44px;
      border: none; border-bottom: 1.5px solid var(--line);
      padding: 0 2px; font-size: 15px; font-weight: 500;
      background: transparent; color: var(--ink);
      transition: border-color .25s;
      outline: none; border-radius: 0;
    }
    .input:focus { border-color: var(--forest); }
    .input::placeholder { color: #a8a89a; }
    textarea.input { height: 84px; padding-top: 10px; resize: vertical; }
    select.input { cursor: pointer; }

    .input.error { border-color: #b3452f; }
    .field-error { font-size: 11.5px; color: #b3452f; margin-top: 6px; font-weight: 600; }

    /* toast */
    .toast {
      position: fixed; bottom: 102px; right: 28px;
      background: var(--forest-deep); color: var(--paper);
      padding: 17px 24px; font-weight: 600; font-size: 14px;
      box-shadow: 0 20px 44px rgba(7,21,16,.35);
      z-index: 200; opacity: 0; transform: translateY(12px);
      transition: opacity .35s, transform .35s;
      max-width: 320px; border-left: 3px solid var(--gold-bright);
    }
    .toast.show { opacity: 1; transform: translateY(0); }
    .toast.fail { border-left-color: #d9694a; }

    /* ══════════════════════════════════════ WHATSAPP FLOTANTE ══════════════════════════════════════ */
    .whatsapp-float {
      position: fixed; bottom: 28px; right: 28px;
      width: 60px; height: 60px; border-radius: 50%;
      background: #25d366; color: #fff;
      display: flex; align-items: center; justify-content: center;
      box-shadow: 0 12px 28px rgba(7,21,16,.3);
      z-index: 150; transition: transform .25s, box-shadow .25s;
    }
    .whatsapp-float svg { width: 30px; height: 30px; }
    .whatsapp-float:hover { transform: translateY(-3px) scale(1.05); box-shadow: 0 16px 34px rgba(7,21,16,.38); }

    .spinner {
      display: inline-block; width: 14px; height: 14px;
      border: 2px solid rgba(247,243,233,.4);
      border-top-color: var(--paper); border-radius: 50%;
      animation: spin .7s linear infinite;
    }
    @keyframes spin { to { transform: rotate(360deg); } }

    /* ══════════════════════════════════════ FOOTER ══════════════════════════════════════ */
    .footer {
      padding: 36px 0; background: var(--paper);
      border-top: 1px solid var(--line);
    }
    .footer-inner {
      display: flex; justify-content: space-between;
      gap: 24px; align-items: center; flex-wrap: wrap;
    }
    .footer-copy { font-size: 12.5px; color: var(--muted); font-weight: 500; }
    .footer-top {
      font-size: 11.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
      color: var(--ink-soft); display: inline-flex; align-items: center; gap: 8px;
    }
    .footer-top .arrow { transition: transform .3s; }
    .footer-top:hover .arrow { transform: translateY(-3px); }
    .footer-top:hover { color: var(--forest); }

    /* ══════════════════════════════════════ SCROLL REVEAL ══════════════════════════════════════ */
    .reveal {
      opacity: 0; transform: translateY(26px);
      transition: opacity .7s ease, transform .7s ease;
    }
    .reveal.visible { opacity: 1; transform: none; }

    /* ══════════════════════════════════════ RESPONSIVE ══════════════════════════════════════ */
    /* nav gets its own, higher breakpoint so 8 links + brand + CTA never get squeezed */
    @media (max-width: 1180px) {
      .nav-links { display: none; }
      .hamburger { display: flex; }
    }
    @media (max-width: 960px) {
      .hero-grid, .return-grid, .infra-band-grid, .contact-grid { grid-template-columns: 1fr; }
      .metrics { grid-template-columns: 1fr 1fr; }
      .metric:nth-child(2) { border-right: none; }
      .metric:nth-child(odd) { }
      .grid4, .funnel { grid-template-columns: 1fr 1fr; }
      .funnel::before { display: none; }
      .nav-links { display: none; }
      .hamburger { display: flex; }
    }
    @media (max-width: 600px) {
      .metrics, .grid4, .grid3, .funnel, .form-grid, .mini-list { grid-template-columns: 1fr; }
      .platforms .card { padding: 36px 28px; }
      .metric { border-right: none; border-bottom: 1px solid var(--line); }
      .nav-inner { height: 72px; }
      .nav-cta { display: none; }
      .hero      { padding: 64px 0 76px; }
      .buttons   { flex-direction: column; align-items: flex-start; }
      .section   { padding: 68px 0; }
      .toast     { right: 16px; bottom: 90px; left: 16px; }
      .whatsapp-float { width: 52px; height: 52px; right: 16px; bottom: 16px; }
      .whatsapp-float svg { width: 26px; height: 26px; }
      .infra-band { padding: 36px 24px; }
      .contact-card { padding: 30px 24px; }
    }
    @media (prefers-reduced-motion: reduce) {
      .reveal, .btn-primary, .btn-secondary, .card, .brand-mark, .mobile-menu a.mobile-link { transition: none; }
      html { scroll-behavior: auto; }
    }
  
    /* ══════════════════════════════════════ PROBLEMAS ══════════════════════════════════════ */
    .problem-mark {
      width: 40px; height: 40px; border-radius: 50%;
      border: 1px solid var(--line); color: var(--forest);
      display: flex; align-items: center; justify-content: center;
      margin-bottom: 18px; flex-shrink: 0;
    }
    .problem-mark svg { width: 20px; height: 20px; }

    /* ══════════════════════════════════════ SOLUTION CARDS ══════════════════════════════════════ */
    .solution-card .badge {
      width: 44px; height: 44px; border-radius: 10px;
      background: var(--forest); color: var(--paper);
      display: flex; align-items: center; justify-content: center;
      font-family: var(--serif); font-weight: 700; font-size: 12.5px;
      margin-bottom: 18px;
    }
    .solution-card .benefit-line {
      margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line-soft);
      font-size: 12.5px; font-weight: 700; color: var(--forest);
    }
    .solution-card .card-cta {
      display: inline-flex; align-items: center; gap: 6px; margin-top: 16px;
      font-size: 12.5px; font-weight: 700; color: var(--ink); transition: color .2s;
    }
    .solution-card .card-cta:hover { color: var(--forest); }

    /* ══════════════════════════════════════ CTA FINAL ══════════════════════════════════════ */
    .cta-final .title { color: var(--paper); }

    /* ══════════════════════════════════════ BREADCRUMBS ══════════════════════════════════════ */
    .breadcrumbs {
      display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
      font-size: 12px; color: var(--muted); margin-bottom: 26px;
    }
    .breadcrumbs a { color: var(--muted); }
    .breadcrumbs a:hover { color: var(--forest); }
    .breadcrumbs .sep { color: var(--line); }
    .breadcrumbs .current { color: var(--ink-soft); font-weight: 600; }

    /* ══════════════════════════════════════ PAGE HERO (subpáginas) ══════════════════════════════════════ */
    .page-hero { padding: 56px 0 76px; }
    .hero-grid.single { grid-template-columns: 1fr; max-width: 760px; gap: 0; }

    /* ══════════════════════════════════════ FAQ ══════════════════════════════════════ */
    .faq-item { border-bottom: 1px solid var(--line); padding: 20px 0; }
    .faq-item:first-child { border-top: 1px solid var(--line); }
    .faq-item summary {
      cursor: pointer; font-family: var(--serif); font-size: 17px; font-weight: 600;
      color: var(--ink); list-style: none; display: flex; justify-content: space-between;
      align-items: center; gap: 16px;
    }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after {
      content: '+'; font-family: var(--sans); font-size: 22px; font-weight: 400;
      color: var(--gold); flex-shrink: 0; transition: transform .25s;
    }
    .faq-item[open] summary::after { transform: rotate(45deg); }
    .faq-item p { margin-top: 14px; color: var(--muted); font-size: 14.5px; line-height: 1.75; max-width: 68ch; }

    /* ══════════════════════════════════════ CASOS DE ÉXITO ══════════════════════════════════════ */
    .demo-badge {
      display: inline-flex; align-items: center; gap: 6px;
      font-size: 10.5px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
      color: var(--gold-text); border: 1px solid var(--gold); padding: 5px 12px; border-radius: 99px;
      margin-bottom: 18px;
    }
    .case-card { padding: 40px 38px; }
    .case-dl { display: grid; grid-template-columns: 140px 1fr; gap: 12px 24px; margin-top: 24px; font-size: 14px; }
    .case-dl dt {
      font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
      color: var(--gold-text); padding-top: 2px;
    }
    .case-dl dd { color: var(--ink-soft); line-height: 1.65; }
    @media (max-width: 600px) {
      .case-dl { grid-template-columns: 1fr; gap: 4px; }
      .case-dl dt { margin-top: 12px; }
    }

    /* ══════════════════════════════════════ FOOTER (multi-columna) ══════════════════════════════════════ */
    .footer { padding: 64px 0 0; }
    .footer-grid {
      display: grid; grid-template-columns: 1.3fr .9fr .9fr 1fr; gap: 40px;
      padding-bottom: 40px; margin-bottom: 28px; border-bottom: 1px solid var(--line);
    }
    .footer-brand-col p { font-size: 13px; color: var(--muted); margin-top: 14px; line-height: 1.7; max-width: 30ch; }
    .footer-col-title {
      font-size: 11px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase;
      color: var(--gold-text); margin-bottom: 16px;
    }
    .footer-col a { display: block; font-size: 13.5px; color: var(--ink-soft); padding: 6px 0; }
    .footer-col a:hover { color: var(--forest); }
    .footer-col a.btn-primary, .footer-col a.btn-primary:hover { display: inline-flex; color: var(--paper); padding: 11px 18px 11px 16px; }
    .footer-inner { padding-bottom: 28px; }
    @media (max-width: 960px) {
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 600px) {
      .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    }