:root {
    --paper: #F4F6F3;
    --paper-2: #ECEFEA;
    --ink: #0F1D17;
    --ink-soft: #33413A;
    --verde: #17694C;
    --verde-claro: #2E8B67;
    --sello: #C08A2D;
    --linea: #C9D2CC;
    --mono-label: #5C6B63;
    --serif: "Newsreader", Georgia, serif;
    --sans: "Inter", system-ui, sans-serif;
    --mono: "IBM Plex Mono", ui-monospace, monospace;
    --maxw: 1120px;
  }

  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 17px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
  }
  a { color: inherit; }
  .wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

  .eyebrow {
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--mono-label);
  }

  /* ---------- header ---------- */
  header {
    border-bottom: 1px solid var(--linea);
    position: sticky; top: 0; z-index: 10;
    background: rgba(244,246,243,0.86);
    backdrop-filter: saturate(1.2) blur(8px);
  }
  .bar { display: flex; align-items: center; justify-content: space-between; height: 68px; }
  .brand { display: flex; align-items: center; gap: 10px; font-family: var(--serif); font-weight: 600; font-size: 22px; letter-spacing: -0.01em; }
  .brand .mark {
    width: 26px; height: 26px; border-radius: 7px; background: var(--verde);
    display: grid; place-items: center; color: #fff; flex: 0 0 auto;
  }
  .brand .mark svg { width: 15px; height: 15px; }
  .nav-tag { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; color: var(--mono-label); text-transform: uppercase; }
  @media (max-width: 640px){ .nav-tag { display: none; } }
  .btn {
    font-family: var(--sans); font-weight: 500; font-size: 15px;
    background: var(--ink); color: var(--paper); border: 1px solid var(--ink);
    padding: 10px 18px; border-radius: 999px; cursor: pointer; text-decoration: none;
    display: inline-block; transition: background .18s ease, color .18s ease;
  }
  .btn:hover { background: var(--verde); border-color: var(--verde); }

  /* ---------- hero ---------- */
  .hero { padding: 84px 0 72px; }
  .hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
  @media (max-width: 900px){ .hero-grid { grid-template-columns: 1fr; gap: 40px; } .hero { padding: 56px 0 48px; } }
  .hero h1 {
    font-family: var(--serif); font-weight: 500;
    font-size: clamp(38px, 6vw, 64px); line-height: 1.04; letter-spacing: -0.02em;
    margin: 18px 0 20px;
  }
  .hero h1 em { font-style: italic; color: var(--verde); }
  .hero p.lead { font-size: 19px; color: var(--ink-soft); max-width: 30em; margin: 0 0 30px; }

  form.waitlist { display: flex; gap: 10px; max-width: 460px; }
  form.waitlist input[type=email]{
    flex: 1; font-family: var(--sans); font-size: 16px; color: var(--ink);
    background: #fff; border: 1px solid var(--linea); border-radius: 999px; padding: 13px 18px;
  }
  form.waitlist input[type=email]:focus { outline: 2px solid var(--verde); outline-offset: 1px; border-color: transparent; }
  form.waitlist button { white-space: nowrap; background: var(--verde); border-color: var(--verde); }
  form.waitlist button:hover { background: var(--verde-claro); border-color: var(--verde-claro); }
  .form-note { font-family: var(--mono); font-size: 12px; color: var(--mono-label); margin: 12px 2px 0; }
  .form-msg { font-size: 15px; margin: 12px 2px 0; min-height: 1.2em; }
  .form-msg.ok { color: var(--verde); }
  .form-msg.err { color: #a13d2d; }
  @media (max-width: 480px){ form.waitlist { flex-direction: column; } }

  /* ---------- acuse / regla de 3 (signature) ---------- */
  .acuse {
    background: #fff; border: 1px solid var(--linea); border-radius: 16px;
    padding: 26px 26px 24px; box-shadow: 0 24px 60px -34px rgba(15,29,23,0.4);
    position: relative;
  }
  .acuse .acuse-head { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 1px dashed var(--linea); padding-bottom: 14px; margin-bottom: 6px; }
  .acuse .acuse-head .t { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--mono-label); }
  .row { display: flex; justify-content: space-between; align-items: center; padding: 15px 0; border-bottom: 1px solid var(--paper-2); }
  .row:last-of-type { border-bottom: 0; }
  .row .lbl { font-size: 14px; color: var(--ink-soft); }
  .row .lbl small { display: block; font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; color: var(--mono-label); text-transform: uppercase; margin-top: 2px; }
  .row .amt { font-family: var(--mono); font-size: 17px; font-weight: 500; color: var(--ink); font-variant-numeric: tabular-nums; }
  .acuse .verdict {
    margin-top: 16px; display: flex; align-items: center; gap: 12px;
    background: var(--paper); border: 1px solid var(--linea); border-radius: 12px; padding: 14px 16px;
  }
  .seal {
    width: 46px; height: 46px; border-radius: 50%; flex: 0 0 auto;
    border: 2px solid var(--verde); color: var(--verde);
    display: grid; place-items: center;
    transform: scale(0.6) rotate(-14deg); opacity: 0;
    transition: transform .5s cubic-bezier(.2,.9,.25,1.2), opacity .4s ease;
  }
  .seal svg { width: 24px; height: 24px; }
  .acuse.done .seal { transform: scale(1) rotate(-8deg); opacity: 1; }
  .verdict .vtext b { font-family: var(--serif); font-weight: 600; font-size: 18px; }
  .verdict .vtext span { display: block; font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mono-label); }

  /* ---------- sections ---------- */
  section.block { padding: 74px 0; border-top: 1px solid var(--linea); }
  .section-eyebrow { margin-bottom: 14px; }
  h2 { font-family: var(--serif); font-weight: 500; font-size: clamp(28px, 4vw, 40px); line-height: 1.1; letter-spacing: -0.015em; margin: 0 0 12px; max-width: 18em; }
  .lead-2 { color: var(--ink-soft); max-width: 40em; margin: 0 0 40px; font-size: 18px; }

  .cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
  @media (max-width: 760px){ .cards { grid-template-columns: 1fr; } }
  .card { background: #fff; border: 1px solid var(--linea); border-radius: 14px; padding: 24px; }
  .card h3 { font-size: 18px; margin: 0 0 8px; font-weight: 600; }
  .card p { margin: 0; color: var(--ink-soft); font-size: 15.5px; }
  .card .k { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--verde); display: block; margin-bottom: 12px; }

  /* proceso: real sequence, numbering earns its place */
  .steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--linea); border-radius: 14px; overflow: hidden; background: #fff; }
  @media (max-width: 760px){ .steps { grid-template-columns: 1fr; } }
  .step { padding: 26px 24px; border-right: 1px solid var(--linea); }
  .step:last-child { border-right: 0; }
  @media (max-width: 760px){ .step { border-right: 0; border-bottom: 1px solid var(--linea); } .step:last-child { border-bottom: 0; } }
  .step .n { font-family: var(--mono); font-size: 12px; color: var(--sello); letter-spacing: 0.1em; }
  .step h3 { font-family: var(--serif); font-weight: 500; font-size: 21px; margin: 10px 0 8px; }
  .step p { margin: 0; color: var(--ink-soft); font-size: 15px; }

  /* seguridad: dark, serious */
  .dark { background: var(--ink); color: var(--paper); border-top: 1px solid var(--ink); }
  .dark h2 { color: var(--paper); }
  .dark .lead-2 { color: #B9C6BF; }
  .dark .section-eyebrow { color: #7f9088; }
  .twocol { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
  @media (max-width: 760px){ .twocol { grid-template-columns: 1fr; gap: 28px; } }
  .twocol h4 { font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--verde-claro); margin: 0 0 16px; }
  .twocol.dark h4 { color: var(--verde-claro); }
  ul.list { list-style: none; padding: 0; margin: 0; }
  ul.list li { padding: 11px 0; border-bottom: 1px solid #23342B; display: flex; gap: 12px; align-items: flex-start; font-size: 15.5px; color: #DDE6E1; }
  ul.list li:last-child { border-bottom: 0; }
  ul.list li .tick { color: var(--verde-claro); flex: 0 0 auto; font-family: var(--mono); }
  ul.list li .cross { color: #C98B7C; flex: 0 0 auto; font-family: var(--mono); }
  .lock { display: inline-flex; align-items: center; gap: 10px; font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; color: var(--verde-claro); margin-bottom: 22px; }

  /* cta */
  .cta { text-align: center; }
  .cta h2 { margin: 0 auto 14px; }
  .cta form.waitlist { margin: 26px auto 0; }
  .cta .lead-2 { margin: 0 auto 6px; }

  footer { border-top: 1px solid var(--linea); padding: 34px 0; }
  .foot { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 14px; color: var(--mono-label); }
  .foot .brand { font-size: 18px; }
  .foot .mono { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; }

  @media (prefers-reduced-motion: reduce){
    html { scroll-behavior: auto; }
    .seal { transition: none; }
  }

/* footer: reemplazo de estilos inline (CSP sin unsafe-inline) */
.foot .brand { gap: 8px; }
.foot .mark { width: 22px; height: 22px; }