.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Tokens ---------- */

:root {
  --paper: #F1EBDD;
  --paper-raised: #E7DEC7;
  --paper-sunken: #E0D5B9;
  --ink: #211B12;
  --ink-muted: #6B6250;
  --ink-faint: #8F856D;
  --accent: #7A2A22;
  --accent-ink: #F7EEE4;
  --accent-soft: rgba(122, 42, 34, 0.12);
  --gold: #9C7A2E;
  --gold-soft: rgba(156, 122, 46, 0.14);
  --call: #3E6B52;
  --put: #A23B2E;
  --rule: rgba(33, 27, 18, 0.14);
  --rule-strong: rgba(33, 27, 18, 0.28);

  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "URW Palladio L", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "IBM Plex Mono", Menlo, Consolas, monospace;

  --container: 1160px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #16130D; --paper-raised: #1E1A12; --paper-sunken: #0F0D08;
    --ink: #ECE3D1; --ink-muted: #A79A80; --ink-faint: #766B54;
    --accent: #C97361; --accent-ink: #1B120D; --accent-soft: rgba(201, 115, 97, 0.18);
    --gold: #D2A44E; --gold-soft: rgba(210, 164, 78, 0.16);
    --call: #5FA37F; --put: #D2705C;
    --rule: rgba(236, 227, 209, 0.13); --rule-strong: rgba(236, 227, 209, 0.26);
  }
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 500; line-height: 1.2; text-wrap: balance; color: var(--ink); }

a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

svg { width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

.eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.dot-red { background: var(--put); }
.dot-green { background: var(--call); }
.dot-yellow { background: var(--gold); }
.dot-orange { background: var(--accent); }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------- Reveal animation ---------- */

.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 3px;
  border: 1px solid transparent;
  font-family: var(--sans);
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 18px -10px var(--accent); }

.btn-ghost { background: transparent; color: var(--ink); border-color: var(--rule-strong); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- Ticker banner ---------- */

.ticker-banner { background: var(--paper-sunken); border-bottom: 1px solid var(--rule); overflow-x: auto; scrollbar-width: none; }
.ticker-banner::-webkit-scrollbar { display: none; }

.ticker-inner { display: flex; align-items: center; gap: 26px; padding: 9px 32px; white-space: nowrap; }

.ticker-item { display: flex; align-items: baseline; gap: 7px; font-family: var(--mono); font-size: 0.72rem; }
.ticker-label { color: var(--ink-faint); }
.ticker-price { color: var(--ink); font-variant-numeric: tabular-nums; }
.ticker-change { font-variant-numeric: tabular-nums; }
.ticker-change.up { color: var(--call); }
.ticker-change.down { color: var(--put); }

/* ---------- Header ---------- */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 16px 0;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
  transition: box-shadow 0.2s ease;
}

.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }

.logo { display: flex; align-items: center; gap: 10px; font-family: var(--serif); font-size: 1.3rem; letter-spacing: 0.01em; }
.logo-dot { color: var(--gold); font-family: var(--mono); }
.logo-img { width: 32px; height: 32px; border-radius: 50%; object-fit: cover; border: 1px solid var(--rule-strong); flex-shrink: 0; }

.nav-pill { display: flex; align-items: center; gap: 4px; }

.nav-link {
  padding: 9px 16px;
  border-radius: 3px;
  font-size: 0.87rem;
  color: var(--ink-muted);
  transition: color 0.15s ease;
  white-space: nowrap;
}
.nav-link:hover { color: var(--ink); }
.nav-link.active { color: var(--accent); font-weight: 600; }

.header-ctas { display: flex; align-items: center; gap: 10px; }

.header-cta {
  padding: 10px 20px;
  border-radius: 3px;
  border: 1px solid var(--rule-strong);
  background: var(--paper-raised);
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}
.header-cta:hover { border-color: var(--accent); color: var(--accent); }

.header-cta-ghost { background: transparent; border-color: transparent; }
.header-cta-ghost:hover { border-color: var(--rule-strong); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  cursor: pointer;
}
.nav-toggle span { width: 18px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform 0.25s ease, opacity 0.25s ease; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 4px;
  max-width: var(--container);
  margin: 12px auto 0;
  padding: 12px 32px 4px;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.35s ease, opacity 0.3s ease, padding 0.35s ease;
}
.nav-mobile.open { max-height: 420px; opacity: 1; padding: 12px 32px 20px; }
.nav-mobile .nav-link { padding: 12px 14px; }
.nav-mobile .nav-link.active { background: var(--accent-soft); }
.nav-mobile-cta { margin-top: 6px; width: 100%; }

/* ---------- Spine layout — the page reads like chapters off a bound ledger ---------- */

.spine-col { display: block; }
.spine-axis { display: none; }

/* ---------- Hero ---------- */

.hero { padding: 64px 0 88px; }

.hero-inner { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 60px; align-items: center; }

.hero h1 { font-size: clamp(2.1rem, 4.2vw, 3.15rem); line-height: 1.1; letter-spacing: -0.01em; margin-top: 16px; }

.hero-sub { margin-top: 20px; color: var(--ink-muted); font-size: 1.05rem; max-width: 48ch; }

.hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 30px; }

.chart-card { background: var(--paper-raised); border: 1px solid var(--rule); border-radius: 4px; padding: 22px 22px 16px; }
.chart-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 4px; }
.chart-title { font-family: var(--mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-muted); }
.chart-legend { display: flex; gap: 14px; font-family: var(--mono); font-size: 0.7rem; color: var(--ink-muted); }
.chart-legend span { display: inline-flex; align-items: center; gap: 6px; }
.swatch { width: 9px; height: 9px; border-radius: 2px; display: inline-block; }
.gex-row { display: grid; grid-template-columns: 60px 1fr 96px; align-items: center; height: 23px; }
.gex-row .strike { font-family: var(--mono); font-size: 0.71rem; color: var(--ink-faint); text-align: right; padding-right: 10px; }
.gex-row .val { font-family: var(--mono); font-size: 0.66rem; padding-left: 10px; white-space: nowrap; text-align: right; }
.gex-bars { position: relative; height: 100%; display: flex; align-items: center; }
.gex-mid { position: absolute; left: 50%; top: 0; bottom: 0; width: 1px; background: var(--rule-strong); }
.gex-bar { position: absolute; top: 5px; bottom: 5px; border-radius: 2px; }
.gex-bar.call { background: var(--call); left: 50%; }
.gex-bar.put { background: var(--put); right: 50%; }
.gex-row.flip { background: var(--gold-soft); }
.gex-row.flip .strike { color: var(--gold); font-weight: 700; }
.flip-caption { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 6px 16px; margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--rule); font-family: var(--mono); font-size: 0.66rem; color: var(--ink-faint); }
.chart-foot { margin-top: 10px; font-size: 0.72rem; color: var(--ink-faint); font-style: italic; }

/* ---------- Section shared ---------- */

section { padding: 84px 0; border-top: 1px solid var(--rule); }

.section-head { max-width: 640px; margin-bottom: 44px; }
.section-head h2 { font-size: clamp(1.55rem, 2.5vw, 2rem); margin-top: 10px; }
.section-sub { margin-top: 14px; color: var(--ink-muted); font-size: 1rem; }
.section-sub em { color: var(--ink); font-style: normal; font-weight: 600; }

/* ---------- Protocolo (steps) ---------- */

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule); border-radius: 4px; overflow: hidden; }
.step { background: var(--paper-raised); padding: 26px 20px; }
.step .n { font-family: var(--mono); color: var(--accent); font-size: 0.8rem; }
.step h4 { margin-top: 10px; font-size: 1.02rem; }
.step p { margin-top: 8px; font-size: 0.85rem; color: var(--ink-muted); }

/* ---------- Qué es el Gamma Exposure ---------- */

.gex-explainer-head { margin-bottom: 22px; }
.gex-explainer-head h3 { font-size: 1.1rem; }
.gex-explainer-head p { margin-top: 8px; font-size: 0.9rem; color: var(--ink-muted); max-width: 68ch; }

.regimen-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-bottom: 20px; }
.regimen-card { border: 1px solid var(--rule); border-radius: 4px; padding: 24px 26px; background: var(--paper-raised); border-left: 3px solid; }
.regimen-positivo { border-left-color: var(--call); }
.regimen-negativo { border-left-color: var(--put); }
.regimen-tag { font-family: var(--mono); font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-faint); }
.regimen-card h3 { margin-top: 8px; font-size: 1.02rem; font-family: var(--sans); font-weight: 600; }
.regimen-card p { margin-top: 8px; font-size: 0.87rem; color: var(--ink-muted); }

.gex-flip-note { display: flex; align-items: flex-start; gap: 10px; font-size: 0.88rem; color: var(--ink-muted); background: var(--gold-soft); border: 1px solid var(--rule); border-radius: 3px; padding: 14px 16px; margin-bottom: 40px; }
.gex-flip-note .dot { margin-top: 5px; }
.gex-flip-note strong { color: var(--ink); }

/* ---------- Producto ---------- */

.product-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.product-card { border: 1px solid var(--rule); border-radius: 4px; background: var(--paper-raised); padding: 30px; display: flex; flex-direction: column; gap: 16px; }
.product-card h3 { font-size: 1.25rem; }
.product-card .desc { color: var(--ink-muted); font-size: 0.93rem; }
.skeleton { background: var(--paper-sunken); border: 1px solid var(--rule); border-radius: 3px; padding: 14px 16px; font-family: var(--mono); font-size: 0.76rem; }
.skeleton .line { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px dashed var(--rule); }
.skeleton .line:last-child { border-bottom: none; }
.skeleton .label { color: var(--ink-faint); }
.skeleton .call { color: var(--call); }
.skeleton .put { color: var(--put); }
.nt8-note { display: flex; align-items: center; gap: 8px; font-size: 0.82rem; color: var(--ink-muted); background: var(--gold-soft); border: 1px solid var(--rule); border-radius: 3px; padding: 10px 12px; }
.nt8-note b { color: var(--ink); }

.tag { display: inline-block; font-family: var(--mono); font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.05em; padding: 3px 8px; border-radius: 2px; background: var(--accent-soft); color: var(--accent); }

table.scorecard { width: 100%; border-collapse: collapse; font-size: 0.8rem; }
table.scorecard th { text-align: left; font-family: var(--mono); font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-faint); padding: 8px 6px; border-bottom: 1px solid var(--rule-strong); }
table.scorecard td { padding: 9px 6px; border-bottom: 1px solid var(--rule); font-family: var(--mono); }
table.scorecard td.up { color: var(--call); }
table.scorecard td.down { color: var(--put); }

/* ---------- El libro ---------- */

.method-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; }
.quote-block { border-left: 2px solid var(--accent); padding-left: 20px; margin: 22px 0; }
.quote-block p { font-family: var(--serif); font-size: 1.1rem; line-height: 1.5; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.chip { font-family: var(--mono); font-size: 0.71rem; padding: 6px 10px; border: 1px solid var(--rule-strong); border-radius: 3px; color: var(--ink-muted); }

.tree { border: 1px solid var(--rule); border-radius: 4px; background: var(--paper-raised); padding: 22px; }
.tree-node { display: grid; grid-template-columns: 20px 1fr auto; gap: 12px; align-items: center; padding: 9px 0; border-bottom: 1px solid var(--rule); font-size: 0.84rem; }
.tree-node:last-child { border-bottom: none; }
.tree-node .idx { font-family: var(--mono); color: var(--accent); font-size: 0.76rem; }
.tree-node .pilar { font-family: var(--mono); font-size: 0.6rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--ink-faint); white-space: nowrap; }
.verdict-row { display: flex; gap: 8px; margin-top: 16px; }
.verdict { font-family: var(--mono); font-size: 0.7rem; padding: 5px 10px; border-radius: 2px; border: 1px solid var(--rule-strong); }
.verdict.a-plus { border-color: var(--call); color: var(--call); }
.verdict.no-trade { border-color: var(--put); color: var(--put); }

.funnel-head { margin: 52px 0 22px; }
.funnel-head h3 { font-size: 1.15rem; }
.funnel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.funnel-card { border: 1px solid var(--rule); border-radius: 4px; padding: 24px; background: var(--paper-raised); display: flex; flex-direction: column; gap: 12px; }
.funnel-card.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.funnel-stage { font-family: var(--mono); font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--ink-faint); }
.funnel-card h4 { font-size: 1.05rem; }
.funnel-card p { font-size: 0.85rem; color: var(--ink-muted); flex-grow: 1; }
.funnel-price { font-family: var(--serif); font-size: 1.3rem; }
.funnel-price small { font-family: var(--sans); font-size: 0.72rem; color: var(--ink-muted); font-weight: 400; }
.funnel-card .btn { align-self: flex-start; margin-top: 4px; }

/* ---------- Precio ---------- */

.atm-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 760px; margin: 0 auto; }
.atm-card { border: 1px solid var(--rule); border-radius: 4px; padding: 28px; display: flex; flex-direction: column; gap: 16px; background: var(--paper-raised); }
.atm-card.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.atm-stage { font-family: var(--mono); font-size: 0.68rem; color: var(--ink-faint); text-transform: uppercase; letter-spacing: 0.08em; }
.atm-price { font-family: var(--serif); font-size: 1.85rem; margin-top: 2px; }
.atm-price small { font-family: var(--sans); font-size: 0.78rem; color: var(--ink-muted); font-weight: 400; }
.atm-card ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.atm-card li { font-size: 0.84rem; color: var(--ink-muted); padding-left: 16px; position: relative; }
.atm-card li::before { content: "—"; position: absolute; left: 0; color: var(--ink-faint); }
.atm-quote { font-size: 0.8rem; font-style: italic; color: var(--ink-faint); margin-top: auto; padding-top: 12px; border-top: 1px solid var(--rule); }
.precio-nota { margin-top: 28px; font-size: 0.85rem; color: var(--ink-faint); font-style: italic; }

/* ---------- Totem (quién enseña) ---------- */

.founder-grid { display: grid; grid-template-columns: 180px 1fr; gap: 40px; align-items: start; }
.founder-mark { width: 88px; height: 88px; border-radius: 50%; border: 1px solid var(--rule-strong); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.founder-mark img { width: 100%; height: 100%; object-fit: cover; }
.founder-name { margin-top: 16px; font-size: 0.95rem; font-family: var(--serif); }
.founder-role { font-size: 0.78rem; color: var(--ink-faint); margin-top: 2px; }
.signature-line { margin-top: 20px; font-size: 0.86rem; color: var(--ink-faint); font-style: italic; }

/* ---------- Contacto ---------- */

.contacto-inner { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: start; }
.contacto-info p { color: var(--ink-muted); margin-top: 14px; max-width: 42ch; }
.contacto-list { list-style: none; display: flex; flex-direction: column; gap: 10px; margin-top: 20px; }
.contacto-list li { display: flex; align-items: center; gap: 12px; font-size: 0.88rem; color: var(--ink-muted); }

.contacto-form { background: var(--paper-raised); border: 1px solid var(--rule); border-radius: 4px; padding: 32px; display: flex; flex-direction: column; gap: 18px; }

.form-row { display: flex; flex-direction: column; gap: 6px; }
.form-row label { font-family: var(--mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-faint); }
.form-row input, .form-row textarea {
  font-family: var(--sans); font-size: 0.92rem; padding: 11px 13px; border-radius: 3px;
  border: 1px solid var(--rule-strong); background: var(--paper); color: var(--ink);
  transition: border-color 0.15s ease;
}
.form-row input:focus, .form-row textarea:focus { outline: none; border-color: var(--accent); }
.form-row.error input, .form-row.error textarea { border-color: var(--put); }
.form-row textarea { resize: vertical; }

.form-error { font-size: 0.76rem; color: var(--put); min-height: 14px; }

.form-submit { margin-top: 2px; }

.form-success { display: none; font-size: 0.88rem; color: var(--call); text-align: center; padding: 10px; background: color-mix(in srgb, var(--call) 12%, transparent); border-radius: 3px; }
.form-success.visible { display: block; }

/* ---------- CTA final ---------- */

.cta-final .sub { margin-top: 16px; color: var(--ink-muted); max-width: 50ch; }
.cta-final .ctas { margin-top: 28px; display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Footer ---------- */

.footer { border-top: 1px solid var(--rule); padding: 40px 0; }
.footer-row { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; font-size: 0.78rem; color: var(--ink-faint); }
.footer-row a { text-decoration: none; color: var(--ink-faint); margin-right: 18px; }
.footer-row a:hover { color: var(--ink); }
.footer-legal { margin-top: 18px; font-size: 0.74rem; color: var(--ink-faint); max-width: 76ch; }

/* ---------- Responsive ---------- */

@media (max-width: 940px) {
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .hero-sub { max-width: 100%; }
  .method-layout { grid-template-columns: 1fr; }
  .funnel-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .nav-pill, .header-ctas { display: none; }
  .nav-toggle { display: flex; }
  .nav-mobile { display: flex; }
  .atm-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .founder-grid { grid-template-columns: 1fr; }
  .contacto-inner { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .product-grid { grid-template-columns: 1fr; }
}

@media (max-width: 780px) {
  .steps { grid-template-columns: 1fr 1fr; }
  .regimen-grid { grid-template-columns: 1fr; }
  section { padding: 64px 0; }
  .hero { padding: 40px 0 64px; }
}

@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .nav-mobile { padding-left: 20px; padding-right: 20px; }
  .hero-ctas { flex-direction: column; }
  .btn { width: 100%; }
}