/* ============================================================
   Cortex Landing
   Marca personal Francisco Abad, sistema Ultramarine v5, light.
   HTML + CSS + JS a mano, sin frameworks ni build steps.
   ============================================================ */

:root {
  /* --- Ultramarine v5 (light) --- */
  --ink:            #0E1738;
  --royal:          #1A2B6B;
  --ultramarine:    #3B4ED9;
  --ultramarine-700:#2F3FB0;
  --ultra-light:    #6B7AE8;
  --champagne:      #B5985A;
  --bronze:         #8A6F3D;
  --linen:          #FAFAF7;
  --slate-light:    #E8EAF0;
  --slate-mid:      #6B7280;
  --slate-dark:     #2D3748;
  --charcoal:       #1A1A1A;
  --white:          #FFFFFF;

  --bg-page:        var(--linen);
  --bg-elevated:    var(--white);
  --bg-tint:        rgba(59, 78, 217, 0.06);
  --text-primary:   var(--slate-dark);
  --text-secondary: var(--slate-mid);
  --text-heading:   var(--royal);
  --accent:         var(--ultramarine);
  --border-subtle:  var(--slate-light);
  --border-strong:  #D3D7E3;

  --focus-ring:     0 0 0 3px rgba(59, 78, 217, 0.35);

  /* --- Tipografía --- */
  --font-head: "Montserrat", "Segoe UI", system-ui, -apple-system, Helvetica, Arial, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, -apple-system, Helvetica, Arial, sans-serif;

  --fs-h1:      52px;
  --fs-h2:      36px;
  --fs-h3:      22px;
  --fs-h4:      18px;
  --fs-body-lg: 18px;
  --fs-body:    16px;
  --fs-small:   14px;
  --fs-caption: 13px;
  --fs-eyebrow: 11px;

  /* --- Espaciado / radios / movimiento --- */
  --space-1: 4px;  --space-2: 8px;   --space-3: 12px; --space-4: 16px;
  --space-5: 24px; --space-6: 32px;  --space-7: 48px; --space-8: 64px;
  --space-9: 96px; --space-10: 128px;

  --max-content: 1160px;
  --max-narrow:  760px;
  --gutter:      24px;

  --radius-sm: 6px; --radius-md: 10px; --radius-lg: 14px; --radius-pill: 999px;

  --shadow-sm: 0 2px 8px rgba(14, 23, 56, 0.06);
  --shadow-md: 0 8px 24px rgba(14, 23, 56, 0.08);
  --shadow-lg: 0 20px 48px rgba(14, 23, 56, 0.12);

  --ease-standard: cubic-bezier(0.2, 0.6, 0.2, 1);
  --ease-emphasis: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 120ms; --dur-base: 200ms; --dur-slow: 360ms;
}

/* Nerio: dark operational desk. */
:root {
  --ink:#0B1220; --royal:#F3F0E8; --ultramarine:#B69152; --ultramarine-700:#D0AC6B;
  --ultra-light:#D7B879; --champagne:#B69152; --bronze:#D0AC6B; --linen:#0B1220;
  --slate-light:rgba(243,240,232,.14); --slate-mid:#AEB6C1; --slate-dark:#F3F0E8;
  --charcoal:#F3F0E8; --white:#162033; --bg-page:#0B1220; --bg-elevated:#111C2E;
  --bg-tint:rgba(182,145,82,.1); --text-primary:#F3F0E8; --text-secondary:#C7CBD2;
  --text-heading:#F3F0E8; --accent:#B69152; --border-subtle:rgba(243,240,232,.14);
  --border-strong:rgba(243,240,232,.26); --focus-ring:0 0 0 3px rgba(182,145,82,.35);
  --font-head:"DM Serif Display",Georgia,serif; --font-body:"Inter",system-ui,sans-serif;
  --shadow-sm:0 4px 18px rgba(0,0,0,.16); --shadow-md:0 12px 32px rgba(0,0,0,.24); --shadow-lg:0 24px 60px rgba(0,0,0,.34);
}
.site-header { background:rgba(11,18,32,.90); }
.section--alt { background:#111C2E; }
.hero { background:radial-gradient(ellipse 70% 75% at 75% 10%,rgba(182,145,82,.14),transparent 68%); }
.wordmark .product { color:var(--text-heading); letter-spacing:-.065em; font-family:Inter,system-ui,sans-serif; font-weight:500; }
.nerio-mark { width:25px; height:25px; color:var(--text-heading); }
.mock-tg { border-color:rgba(182,145,82,.42); box-shadow:var(--shadow-lg); }
.mock-tg__bar { background:#162033; }
.mock-tg__avatar,.mock-tg__priority { background:#B69152; color:#0B1220; }
.golden-rule,.price-card--featured,.brain-card--cortex,.vs-card--cortex { background:#162033!important; border-color:rgba(182,145,82,.52)!important; }

/* Nerio hierarchy: the briefing is the visual thesis, cards recede behind it. */
.hero { min-height:720px; display:grid; place-items:center; padding-block:clamp(6rem,12vw,11rem); }
.hero .container { display:grid; grid-template-columns:minmax(0,1.05fr) minmax(330px,.95fr); gap:clamp(2rem,7vw,7rem); align-items:center; }
.hero-title { max-width:10ch; font-family:var(--font-head); font-size:clamp(4.25rem,8.2vw,8.5rem); font-weight:400; line-height:.91; letter-spacing:-.06em; }
.hero-title em { color:var(--accent); font-style:italic; }
.hero-sub { max-width:33ch; font-size:1.125rem; line-height:1.58; }
.mock-stage { position:relative; padding:1.25rem 0 1.25rem 1.25rem; }
.mock-stage::before { content:""; position:absolute; inset:0 0 0 8%; border:1px solid rgba(243,240,232,.14); border-radius:28px; }
.mock-tg { position:relative; border-radius:18px; transform:rotate(1.2deg); }
.section { padding-block:clamp(5.5rem,10vw,10rem); }
.section-head h2 { font-family:var(--font-head); font-size:clamp(3rem,5vw,5rem); font-weight:400; line-height:.98; letter-spacing:-.045em; max-width:12ch; }
.section-head .eyebrow, .eyebrow, .nav-link, .btn, .module-tag, .price-flag { font-family:"JetBrains Mono",ui-monospace,monospace; }
.problem-item { grid-template-columns:104px minmax(0,1fr); }
.problem-item .index { color:var(--accent); font-family:"DM Serif Display",serif; font-size:4.5rem; font-weight:400; }
.module-card, .case-card, .price-card, .brain-card, .vs-card { border-radius:12px; box-shadow:none; background:#162033; }
.module-card:hover, .case-card:hover { border-color:rgba(182,145,82,.52); transform:translateY(-3px); }
.btn--primary { background:var(--accent); color:#0B1220; border-radius:6px; }
.btn--ghost { border-color:rgba(243,240,232,.3); color:var(--text-primary); border-radius:6px; }
.site-footer { background:#070C16; border-top:1px solid rgba(243,240,232,.14); }
@media (max-width:800px) { .hero { min-height:auto; } .hero .container { grid-template-columns:1fr; } .hero-title { font-size:clamp(3.7rem,18vw,6.5rem); } .mock-stage { padding-left:0; } .problem-item { grid-template-columns:1fr; } }

/* ============ Base ============ */

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

html { scroll-behavior: smooth; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-page);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--text-heading);
  margin: 0 0 var(--space-4) 0;
  letter-spacing: -0.01em;
  text-wrap: balance;
}
h1 { font-size: clamp(34px, 5.6vw, 56px); font-weight: 800; line-height: 1.06; letter-spacing: -0.02em; }
h2 { font-size: clamp(27px, 4.2vw, var(--fs-h2)); font-weight: 700; line-height: 1.14; }
h3 { font-size: var(--fs-h3); font-weight: 700; line-height: 1.25; }
h4 { font-size: var(--fs-h4); font-weight: 600; line-height: 1.3; margin-bottom: var(--space-3); }

p { margin: 0 0 var(--space-4) 0; max-width: 68ch; }
p:last-child { margin-bottom: 0; }

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color var(--dur-base) var(--ease-standard);
}
a:hover { color: var(--ultramarine-700); }

::selection { background: var(--ultramarine); color: var(--white); }

:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}

img { max-width: 100%; }

/* ============ Utilidades ============ */

.container {
  width: 100%;
  max-width: var(--max-content);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.eyebrow {
  font-family: var(--font-head);
  font-size: var(--fs-eyebrow);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
}

.section {
  padding-block: clamp(var(--space-8), 9vw, var(--space-9));
}
.section--alt { background: var(--bg-elevated); border-block: 1px solid var(--border-subtle); }

.section-head {
  max-width: var(--max-narrow);
  margin-bottom: clamp(var(--space-6), 6vw, var(--space-7));
}
.section-head .eyebrow { display: block; margin-bottom: var(--space-3); }
.section-lede {
  color: var(--text-secondary);
  font-size: var(--fs-body-lg);
}

/* Reveal al hacer scroll */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-slow) var(--ease-emphasis),
              transform var(--dur-slow) var(--ease-emphasis);
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 90ms; }
.reveal[data-delay="2"] { transition-delay: 180ms; }
.reveal[data-delay="3"] { transition-delay: 270ms; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ============ Botones ============ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-head);
  font-size: var(--fs-body);
  font-weight: 600;
  line-height: 1;
  min-height: 48px;
  padding: 14px 26px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--dur-base) var(--ease-standard),
              border-color var(--dur-base) var(--ease-standard),
              color var(--dur-base) var(--ease-standard),
              transform var(--dur-fast) var(--ease-standard);
}
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--ultramarine);
  color: var(--white);
  box-shadow: 0 1px 2px rgba(14, 23, 56, 0.12);
}
.btn--primary:hover {
  background: var(--ultramarine-700);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(59, 78, 217, 0.28);
}
.btn--primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(59, 78, 217, 0.3);
}

.btn--ghost {
  background: transparent;
  color: var(--royal);
  border-color: var(--border-strong);
}
.btn--ghost:hover { border-color: var(--ultramarine); color: var(--ultramarine-700); background: var(--bg-tint); }

.btn--sm { min-height: 44px; padding: 12px 18px; font-size: var(--fs-small); }

.btn--block { width: 100%; }

/* ============ Header ============ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 247, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 68px;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  text-decoration: none;
  white-space: nowrap;
}
.wordmark:hover { text-decoration: none; }
.wordmark .fa-logo { height: 26px; width: auto; display: block; }
.wordmark .product {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--royal);
}
.wordmark .by {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-secondary);
}

.site-nav {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: var(--space-3);
}
.site-nav a.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding-inline: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  text-decoration: none;
  white-space: nowrap;
}
.site-nav a.nav-link:hover { color: var(--ultramarine); }

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-pill);
  padding: 3px;
}
.lang-opt {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  min-height: 36px;
  padding: 0 11px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  color: var(--text-secondary);
  transition: background var(--dur-base) var(--ease-standard), color var(--dur-base) var(--ease-standard);
}
.lang-opt:hover { color: var(--ultramarine); text-decoration: none; }
.lang-opt.active { background: var(--ultramarine); color: var(--white); }
.lang-opt .flag {
  width: 18px;
  height: 13px;
  border-radius: 2px;
  display: block;
  flex: none;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.08);
}

/* Selector con la misma especificidad que la regla base (.site-nav a.nav-link)
   para que gane por orden de origen; con .site-nav .nav-link (menor especificidad)
   el display:inline-flex base se imponia y el nav desbordaba en movil/tablet. */
@media (max-width: 1024px) {
  .site-nav a.nav-link { display: none; }
}
/* En telefonos el header se reduce a marca + CTA; el toggle de idioma vive en el
   footer para no apretar la barra. */
@media (max-width: 600px) {
  .site-header .lang-switch { display: none; }
}

/* ============ Hero ============ */

.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(var(--space-8), 9vw, var(--space-10));
  border-bottom: 1px solid var(--border-subtle);
  background:
    radial-gradient(900px 480px at 85% -10%, rgba(59, 78, 217, 0.07), rgba(59, 78, 217, 0)),
    var(--bg-page);
}

.hero .container {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(var(--space-6), 5vw, var(--space-8));
  align-items: center;
}

.hero-copy .eyebrow { display: block; margin-bottom: var(--space-4); }

.hero-title {
  margin-bottom: var(--space-5);
}
.hero-title em {
  font-style: normal;
  color: var(--ultramarine);
}

.hero-sub {
  font-size: var(--fs-body-lg);
  color: var(--text-primary);
  max-width: 52ch;
  margin-bottom: var(--space-6);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.hero-note {
  font-size: var(--fs-caption);
  color: var(--text-secondary);
}

/* Chips de confianza bajo los CTAs del hero: responden las 3 objeciones
   (tarjeta, costo de IA, propiedad de los datos) antes de que se formulen. */
.hero-trust {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
}
.hero-trust li {
  position: relative;
  padding-left: 20px;
  font-size: var(--fs-caption);
  color: var(--text-secondary);
  line-height: 1.5;
}
.hero-trust li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--ultramarine);
  font-weight: 700;
}

@media (max-width: 960px) {
  .hero .container { grid-template-columns: 1fr; }
}

/* ============ Mock Telegram ============ */

.mock-stage {
  display: grid;
  justify-items: center;
}

.mock-tg {
  width: 100%;
  max-width: 360px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  font-size: var(--fs-small);
  line-height: 1.45;
}

.mock-tg__bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
}
.mock-tg__avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--ultramarine);
  color: var(--white);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 13px;
  display: grid;
  place-items: center;
  flex: none;
}
.mock-tg__meta { min-width: 0; }
.mock-tg__name { font-family: var(--font-head); font-weight: 700; color: var(--royal); font-size: var(--fs-small); }
.mock-tg__status { font-size: 12px; color: var(--text-secondary); }
.mock-tg__status::before {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ultramarine);
  margin-right: 5px;
  vertical-align: 1px;
}

.mock-tg__body {
  padding: var(--space-4);
  background: var(--linen);
}

.mock-tg__bubble {
  background: var(--bg-tint);
  border: 1px solid rgba(59, 78, 217, 0.12);
  border-radius: 2px var(--radius-lg) var(--radius-lg) var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  color: var(--text-primary);
}
.mock-tg__bubble strong { color: var(--royal); }

.mock-tg__kicker {
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--ultramarine);
  margin-bottom: var(--space-2);
}

.mock-tg__row {
  display: flex;
  gap: var(--space-2);
  padding-block: 3px;
}
.mock-tg__time {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  flex: none;
  padding-top: 2px;
  min-width: 42px;
}

.mock-tg__divider {
  border: 0;
  border-top: 1px solid rgba(59, 78, 217, 0.14);
  margin: var(--space-2) 0;
}

.mock-tg__hot { color: var(--ultramarine); font-weight: 700; }

.mock-tg__priority {
  margin-top: var(--space-2);
  border-left: 2px solid var(--ultramarine);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-elevated);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.mock-tg__priority .mock-tg__kicker { margin-bottom: 2px; }

.mock-tg__stamp {
  font-size: 12px;
  color: var(--text-secondary);
  text-align: right;
  margin-top: var(--space-2);
}

/* ============ Problema ============ */

.problem-list {
  border-top: 1px solid var(--border-subtle);
}

.problem-item {
  display: grid;
  grid-template-columns: minmax(90px, 0.4fr) minmax(0, 1fr);
  gap: var(--space-6);
  padding-block: var(--space-6);
  border-bottom: 1px solid var(--border-subtle);
}

.problem-item .index {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 40px;
  line-height: 1;
  color: var(--slate-light);
}

.problem-item h3 { margin-bottom: var(--space-2); }
.problem-item p { color: var(--text-primary); max-width: 58ch; margin: 0; }

@media (max-width: 640px) {
  .problem-item { grid-template-columns: 1fr; gap: var(--space-2); }
  .problem-item .index { font-size: 26px; }
}

/* ============ Método (90 días) ============ */
/* Reusa .problem-list / .problem-item para los 4 pasos del método;
   solo agrega la linea de cierre despues de la lista. */
.method-close {
  margin-top: clamp(var(--space-6), 5vw, var(--space-7));
  font-family: var(--font-head);
  font-weight: 600;
  font-size: var(--fs-body-lg);
  color: var(--royal);
  max-width: var(--max-narrow);
}

/* ============ Módulos ============ */

.modules-intro {
  max-width: var(--max-narrow);
  font-size: var(--fs-body-lg);
  margin-bottom: clamp(var(--space-6), 5vw, var(--space-7));
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}
@media (max-width: 900px) { .modules-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .modules-grid { grid-template-columns: 1fr; } }

.module-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.module-card h3 { font-size: var(--fs-h4); margin: 0; }
.module-card p { color: var(--text-secondary); font-size: var(--fs-small); margin: 0; }

.module-tag {
  align-self: flex-start;
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  padding: 4px 12px;
}
.module-tag--free { background: var(--bg-tint); color: var(--ultramarine); }
.module-tag--tier { border: 1px solid var(--border-strong); color: var(--royal); }

/* ============ Agente ============ */

.agent-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(var(--space-6), 5vw, var(--space-8));
  align-items: start;
}
@media (max-width: 880px) { .agent-grid { grid-template-columns: 1fr; } }

.agent-chat {
  display: grid;
  gap: var(--space-3);
}
.agent-msg {
  justify-self: end;
  max-width: 90%;
  background: var(--ultramarine);
  color: var(--white);
  font-size: var(--fs-small);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg) 2px var(--radius-lg) var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.golden-rule {
  margin-top: var(--space-5);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--ultramarine);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}
.golden-rule h4 { margin-bottom: var(--space-2); }
.golden-rule p { color: var(--text-primary); margin: 0; }

/* ============ Cerebro ============ */

.brain-copy { max-width: var(--max-narrow); }
.brain-copy p { font-size: var(--fs-body-lg); }

.brain-compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  margin-block: var(--space-6);
}
@media (max-width: 720px) { .brain-compare { grid-template-columns: 1fr; } }

.brain-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}
.brain-card--cortex { border-color: var(--ultramarine); }
.brain-card .eyebrow { display: block; margin-bottom: var(--space-2); }
.brain-card--plain .eyebrow { color: var(--text-secondary); }
.brain-card h3 { font-size: var(--fs-h4); margin-bottom: var(--space-2); }
.brain-card p { color: var(--text-secondary); font-size: var(--fs-small); margin: 0; }

/* ============ Frente a Claude / ChatGPT ============ */

.versus {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: var(--space-4);
  align-items: stretch;
}
@media (max-width: 820px) {
  .versus { grid-template-columns: 1fr; gap: var(--space-4); }
}

.vs-card {
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-5), 4vw, var(--space-6));
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.vs-card h3 { font-size: var(--fs-h3); margin: 0; }

.vs-card--plain {
  background: var(--bg-page);
  border: 1px solid var(--border-subtle);
}
.vs-card--plain h3 { color: var(--text-secondary); }

.vs-card--cortex {
  background: linear-gradient(180deg, rgba(59, 78, 217, 0.06), rgba(59, 78, 217, 0));
  border: 2px solid var(--ultramarine);
  box-shadow: var(--shadow-md);
}

.vs-list { margin: 0; padding: 0; list-style: none; display: grid; gap: var(--space-3); }
.vs-list li {
  position: relative;
  padding-left: var(--space-5);
  font-size: var(--fs-small);
  color: var(--text-secondary);
  line-height: 1.5;
}
.vs-list li::before {
  content: "–";
  position: absolute;
  left: 0;
  color: var(--border-strong);
  font-weight: 700;
}
.vs-list--win li { color: var(--text-primary); }
.vs-list--win li::before { content: "✓"; color: var(--ultramarine); }

.vs-badge {
  align-self: center;
  justify-self: center;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-secondary);
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
}

.complement {
  margin-top: var(--space-5);
  background: var(--royal);
  color: #E8EAF0;
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-5), 5vw, var(--space-7));
  display: grid;
  gap: var(--space-4);
  justify-items: start;
}
.complement h4 { color: var(--white); margin: 0; font-size: var(--fs-h3); }
.complement p { color: #C7CDE8; max-width: 70ch; margin: 0; font-size: var(--fs-body-lg); }
.complement .btn--primary { background: var(--white); color: var(--royal); }
.complement .btn--primary:hover { background: #E8EAF0; color: var(--royal); }

/* ============ Casos ============ */

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}
@media (max-width: 880px) { .cases-grid { grid-template-columns: 1fr; } }

.case-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}
.case-card .eyebrow { display: block; margin-bottom: var(--space-3); }
.case-card h3 { font-size: var(--fs-h4); margin-bottom: var(--space-3); }
.case-card p { color: var(--text-primary); font-size: var(--fs-small); margin: 0; }

/* ============ Configuración ============ */

.setup-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
  counter-reset: paso;
}
@media (max-width: 960px) { .setup-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .setup-steps { grid-template-columns: 1fr; } }

.setup-step {
  border-top: 2px solid var(--border-subtle);
  padding-top: var(--space-4);
  position: relative;
}
.setup-step::before {
  content: "";
  position: absolute;
  top: -2px; left: 0;
  width: 48px; height: 2px;
  background: var(--ultramarine);
}
.setup-step .index {
  display: block;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  color: var(--ultramarine);
  margin-bottom: var(--space-2);
}
.setup-step h3 { font-size: var(--fs-h4); margin-bottom: var(--space-2); }
.setup-step p { color: var(--text-secondary); font-size: var(--fs-small); margin: 0; }

.setup-note {
  margin-top: var(--space-6);
  font-size: var(--fs-body-lg);
  color: var(--text-primary);
  max-width: 60ch;
}

/* ============ Precios ============ */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
  align-items: stretch;
}
@media (max-width: 1080px) { .pricing-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .pricing-grid { grid-template-columns: 1fr; } }

.price-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.price-card--featured {
  border: 2px solid var(--ultramarine);
  box-shadow: var(--shadow-md);
}

.price-flag {
  align-self: flex-start;
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  padding: 5px 12px;
}
.price-flag--founding { background: var(--ultramarine); color: var(--white); }
.price-flag--soft { border: 1px solid var(--border-strong); color: var(--text-secondary); }

.price-card h3 { margin-bottom: 0; font-size: var(--fs-h4); }

.price-amount {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 36px;
  line-height: 1;
  color: var(--royal);
}
.price-amount .per {
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--text-secondary);
}

.price-note {
  font-size: var(--fs-caption);
  color: var(--bronze, #8A6F3D); /* AA sobre blanco; champagne 2.8:1 no pasa */
  font-weight: 600;
  margin: 0;
}

.price-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-2);
}
.price-card li {
  font-size: var(--fs-small);
  color: var(--text-primary);
  padding-left: var(--space-5);
  position: relative;
}
.price-card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--ultramarine);
  font-weight: 700;
}
.price-card li strong { color: var(--royal); }

.price-card .btn { margin-top: auto; }

.pricing-fineprint {
  margin-top: var(--space-5);
  font-size: var(--fs-small);
  color: var(--text-secondary);
  max-width: 64ch;
}

/* Linea de cierre en cada price-card: comunica que la modularidad
   (módulos nuevos) suma valor al plan sin subir el precio. Reusa el gap
   del flex del price-card, por eso margin:0 igual que .price-note. */
.price-footnote {
  font-size: var(--fs-caption);
  color: var(--text-secondary);
  margin: 0;
}

/* Franja "Cómo funciona" bajo el grid de precios: explica la progresión
   Base -> Cortex System -> Chief antes del fineprint legal. */
.pricing-how {
  margin-top: clamp(var(--space-7), 6vw, var(--space-8));
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-subtle);
}
.pricing-how h4 { margin-bottom: var(--space-4); }
.pricing-how-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}
@media (max-width: 780px) { .pricing-how-steps { grid-template-columns: 1fr; } }
.pricing-how-steps li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--fs-small);
  color: var(--text-primary);
  line-height: 1.5;
  margin: 0;
}
.pricing-how-steps .index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--bg-tint);
  color: var(--ultramarine);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 12px;
}

/* ============ FAQ ============ */

.faq-list {
  max-width: var(--max-narrow);
  border-top: 1px solid var(--border-subtle);
}
.faq-item {
  border-bottom: 1px solid var(--border-subtle);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-1);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: var(--fs-body-lg);
  color: var(--royal);
  transition: color var(--dur-base) var(--ease-standard);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--ultramarine); }
.faq-item summary::after {
  content: "+";
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 600;
  color: var(--ultramarine);
  flex: none;
  transition: transform var(--dur-base) var(--ease-standard);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-body {
  padding: 0 var(--space-1) var(--space-5);
  color: var(--text-primary);
  max-width: 62ch;
}

/* ============ Waitlist / CTA final ============ */

.waitlist {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border-subtle);
}

.waitlist .container {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  gap: clamp(var(--space-6), 6vw, var(--space-9));
  align-items: start;
}
@media (max-width: 880px) { .waitlist .container { grid-template-columns: 1fr; } }

.waitlist h2 { font-size: clamp(28px, 4.4vw, 40px); }
.waitlist .section-lede { margin-bottom: var(--space-5); }

.wa-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 44px;
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--royal);
  text-decoration: none;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-pill);
  padding: 10px 18px;
  transition: border-color var(--dur-base) var(--ease-standard);
}
.wa-cta:hover { border-color: var(--ultramarine); color: var(--ultramarine-700); text-decoration: none; }
.wa-cta svg { flex: none; }

/* Nota del founder: prueba social honesta (sin testimonios fabricados) */
.founder-note {
  margin: var(--space-6) 0 0;
  border-left: 3px solid var(--ultramarine);
  background: var(--bg-page);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-5);
  max-width: 52ch;
}
.founder-note blockquote {
  margin: 0 0 var(--space-3);
  font-size: var(--fs-body);
  color: var(--text-primary);
  line-height: 1.65;
}
.founder-note figcaption {
  font-size: var(--fs-caption);
  color: var(--text-secondary);
}
.founder-note figcaption strong { color: var(--royal); }

.form-card {
  background: var(--linen);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
}

.form-field { margin-bottom: var(--space-4); }
.form-field label {
  display: block;
  font-family: var(--font-head);
  font-size: var(--fs-eyebrow);
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--slate-dark);
  margin-bottom: var(--space-2);
}
.form-field input {
  width: 100%;
  background: var(--white);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  padding: 12px 14px;
  min-height: 48px;
  transition: border-color var(--dur-base) var(--ease-standard);
}
.form-field input::placeholder { color: var(--slate-mid); }
.form-field input:focus {
  outline: none;
  border-color: var(--ultramarine);
  box-shadow: var(--focus-ring);
}

.form-status {
  margin-top: var(--space-4);
  font-size: var(--fs-small);
  min-height: 1.4em;
}
.form-status.ok { color: var(--ultramarine-700); font-weight: 600; }
.form-status.err { color: #C23A68; }
.form-status a { color: #C23A68; }

.form-privacy {
  margin-top: var(--space-3);
  font-size: var(--fs-caption);
  color: var(--text-secondary);
}

/* ============ Footer ============ */

.site-footer {
  background: var(--charcoal);
  color: #E8EAF0;
  padding-block: var(--space-7);
}
.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}
.footer-brand { display: grid; gap: var(--space-3); }
.footer-logo { height: 26px; width: auto; }
.footer-brand .tagline {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #9CA3AF;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-5);
  font-size: var(--fs-caption);
}
.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  text-decoration: none;
  color: #D1D5DB;
}
.footer-links a:hover { color: var(--white); }
.site-footer .lang-switch { border-color: #3A3A3A; }
.site-footer .lang-opt { color: #9CA3AF; }
.site-footer .lang-opt:hover { color: var(--white); }
.site-footer .lang-opt.active { background: var(--ultramarine); color: var(--white); }

/* ============ Catálogo de módulos (modulos.html / en/modules.html) ============ */

/* Bloque de un tier (Base / Sistema / Chief) dentro de "Disponibles hoy":
   encabezado con badge + precio, seguido del grid de module-card de ese tier. */
.tier-block + .tier-block { margin-top: clamp(var(--space-7), 6vw, var(--space-8)); }

.tier-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.tier-price {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 22px;
  color: var(--royal);
}
.tier-price .per {
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--text-secondary);
}

/* Cuando un module-card lleva un badge extra ("Nuevo") ademas del tag de tier,
   este contenedor lo separa arriba del titulo sin romper el layout del card. */
.module-tags {
  display: flex;
  gap: var(--space-2);
  margin-bottom: -4px;
}

/* Tag "Chief": relleno solido en royal para diferenciarlo del outline de Sistema
   y del tint claro de Base/Gratis. */
.module-tag--chief { background: var(--royal); color: var(--white); }

/* Tag "Nuevo": acento ultramarine solido, mismo lenguaje que price-flag--founding. */
.module-tag--new { background: var(--ultramarine); color: var(--white); }

/* Tag "Proximamente": neutro, mismo lenguaje que price-flag--soft. No compite
   visualmente con los tags de tier ya activos. */
.module-tag--soon { border: 1px solid var(--border-strong); color: var(--text-secondary); }

.modules-hero { padding-bottom: 0; }
.modules-cta { text-align: left; }
.modules-cta .btn { margin-top: var(--space-2); }