/* ============================================================
   INFERE — sistema visual
   Compuesto en Newsreader (display + itálica) e Inter (texto).
   Tokens: tinta / tinta-alzada / papel / papel-tenue / ámbar / línea
   ============================================================ */

/* ---------- Fuentes (self-hosted, subset latino) ---------- */
@font-face {
  font-family: "Newsreader Display";
  src: url("../fonts/newsreader-display.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Newsreader Text";
  src: url("../fonts/newsreader-text-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Inter";
  src: url("../fonts/inter-var.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* ---------- Tokens ---------- */
:root {
  --tinta:        #0C0E13;
  --tinta-alzada: #11141B;
  --papel:        #E8E4DA;
  --papel-tenue:  #A8A399;
  --ambar:        #C8A24B;
  --ambar-claro:  #D4AF61;
  --linea:        rgba(232, 228, 218, 0.13);

  --serif:  "Newsreader Display", "Times New Roman", serif;
  --serif-i: "Newsreader Text", Georgia, serif;
  --sans:   "Inter", "Segoe UI", system-ui, sans-serif;

  --medida: 62ch;            /* ancho máximo de lectura */
  --margen: clamp(1.375rem, 5vw, 2.5rem);
}

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

html {
  background: var(--tinta);
  color-scheme: dark;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 4.5rem;
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--tinta);
  color: var(--papel);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.68;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--ambar); color: var(--tinta); }

:focus { outline: none; }
:focus-visible {
  outline: 1.5px solid var(--ambar);
  outline-offset: 4px;
  border-radius: 1px;
}

h1, h2, h3, p, ul, figure, blockquote, dl { margin: 0; }
ul { padding: 0; list-style: none; }
a { color: inherit; }
strong { font-weight: 500; color: var(--papel); }
em { font-family: var(--serif-i); font-style: italic; }

/* ---------- Utilidades de composición ---------- */
.wrap {
  max-width: 60rem;
  margin-inline: auto;
  padding-inline: var(--margen);
}

.sec { padding-block: clamp(5.5rem, 14vh, 9.5rem); }

/* Encabezado de sección: número + rótulo + regla */
.kicker {
  display: flex;
  align-items: center;
  gap: 1.125rem;
  margin-bottom: clamp(2.5rem, 6vh, 4rem);
}
.kicker .num {
  font-family: var(--serif-i);
  font-style: italic;
  font-size: 1.0625rem;
  color: var(--ambar);
  letter-spacing: 0.02em;
}
.kicker .rotulo {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--papel-tenue);
  white-space: nowrap;
}
.kicker .regla {
  flex: 1;
  height: 1px;
  background: var(--linea);
}

/* Titular de sección */
.titulo {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.9rem, 4.6vw, 2.9rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  max-width: 24ch;
  text-wrap: balance;
}
.titulo + .entradilla { margin-top: 1.5rem; }

.entradilla {
  font-family: var(--serif-i);
  font-style: italic;
  font-size: clamp(1.2rem, 2.4vw, 1.4rem);
  line-height: 1.45;
  color: var(--papel-tenue);
  max-width: 46ch;
}

.prosa { max-width: var(--medida); margin-top: 2.5rem; }
.prosa p + p { margin-top: 1.25em; }
.prosa .remate {
  font-family: var(--serif-i);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--papel);
  margin-top: 2rem;
}

/* ---------- Cabecera ---------- */
.cabecera {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 10;
  background: rgba(12, 14, 19, 0.92);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s ease;
}
.cabecera.con-linea { border-bottom-color: var(--linea); }

.cabecera-int {
  max-width: 60rem;
  margin-inline: auto;
  padding: 1.05rem var(--margen);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.marca {
  font-family: var(--serif);
  font-size: 1.35rem;
  letter-spacing: 0.005em;
  text-decoration: none;
  color: var(--papel);
}
.marca .punto { color: var(--ambar); }

.nav-enlaces {
  display: flex;
  align-items: baseline;
  gap: clamp(1.25rem, 3vw, 2.25rem);
  font-size: 0.875rem;
}
.nav-enlaces a:not(.btn) {
  text-decoration: none;
  color: var(--papel-tenue);
  transition: color 0.25s ease;
}
.nav-enlaces a:not(.btn):hover { color: var(--papel); }
@media (max-width: 40rem) {
  .nav-enlaces a:not(.btn) { display: none; }
}

/* ---------- Botones / CTA ---------- */
.btn {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--ambar);
  text-decoration: none;
  border: 1px solid rgba(200, 162, 75, 0.55);
  padding: 0.8rem 1.65rem;
  background: transparent;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}
.btn:hover, .btn:active {
  background: var(--ambar);
  border-color: var(--ambar);
  color: var(--tinta);
}
.btn.btn-chico { padding: 0.5rem 1.1rem; font-size: 0.8125rem; }

.enlace-flecha {
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--papel-tenue);
  text-decoration: none;
  border-bottom: 1px solid var(--linea);
  padding-bottom: 0.2rem;
  transition: color 0.25s ease, border-color 0.25s ease;
}
.enlace-flecha:hover { color: var(--papel); border-color: var(--papel-tenue); }

/* ---------- Héroe ---------- */
.heroe {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 7rem;
  padding-bottom: 4rem;
}

.heroe h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.7rem, 8vw, 5.1rem);
  line-height: 1.04;
  letter-spacing: -0.015em;
  max-width: 15ch;
  text-wrap: balance;
}

.heroe .bajada {
  margin-top: 1.75rem;
  font-size: clamp(1.0625rem, 2vw, 1.1875rem);
  line-height: 1.6;
  color: var(--papel-tenue);
  max-width: 52ch;
}
.heroe .bajada strong { color: var(--papel); font-weight: 400; }

.heroe .acciones {
  margin-top: 2.75rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

/* Entrada de diccionario — elemento firma */
.lexica {
  margin-top: clamp(4rem, 10vh, 6.5rem);
  max-width: 40rem;
}
.lexica .regla-ambar {
  height: 1px;
  background: var(--ambar);
  opacity: 0.65;
  margin-bottom: 1.5rem;
  transform-origin: left center;
}
.lexica .entrada {
  font-family: var(--serif-i);
  font-style: italic;
  font-size: clamp(1.1rem, 2.2vw, 1.3rem);
  line-height: 1.55;
  color: var(--papel-tenue);
}
.lexica .voz {
  font-style: italic;
  color: var(--papel);
  font-size: 1.15em;
}
.lexica .voz .pm { color: var(--ambar); padding-inline: 0.06em; }
.lexica .gram {
  display: inline-block;
  font-family: var(--sans);
  font-style: normal;
  font-size: 0.72em;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ambar);
  margin-left: 0.35em;
}

/* Animación de entrada del héroe */
@media (prefers-reduced-motion: no-preference) {
  .heroe .alzar {
    opacity: 0;
    transform: translateY(16px);
    animation: alzar 0.9s cubic-bezier(0.22, 0.61, 0.27, 1) forwards;
  }
  .heroe .alzar:nth-child(2) { animation-delay: 0.12s; }
  .heroe .alzar:nth-child(3) { animation-delay: 0.24s; }
  .lexica .regla-ambar {
    transform: scaleX(0);
    animation: trazar 1.2s cubic-bezier(0.6, 0, 0.2, 1) 0.9s forwards;
  }
  .lexica .entrada {
    opacity: 0;
    animation: aparecer 1s ease 1.35s forwards;
  }
}
@keyframes alzar  { to { opacity: 1; transform: none; } }
@keyframes trazar { to { transform: scaleX(1); } }
@keyframes aparecer { to { opacity: 1; } }

/* ---------- Reveal on scroll ---------- */
.revelar {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.22, 0.61, 0.27, 1);
}
.revelar.visto { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .revelar { opacity: 1; transform: none; transition: none; }
}

/* ---------- Solución: estrofas 01/02/03 ---------- */
.pasos { margin-top: clamp(3rem, 8vh, 5rem); }
.paso {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem 3.5rem;
  padding-block: clamp(2.5rem, 6vh, 3.5rem);
  border-top: 1px solid var(--linea);
}
.paso .numeral {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 4vw, 2.8rem);
  line-height: 1;
  color: var(--ambar);
  opacity: 0.85;
}
.paso .verbo {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.5rem, 3vw, 1.9rem);
  line-height: 1.2;
  margin-bottom: 0.9rem;
}
.paso .cuerpo { color: var(--papel-tenue); max-width: var(--medida); }
.paso .cuerpo strong { color: var(--papel); }

@media (min-width: 50rem) {
  .paso { grid-template-columns: 7rem minmax(0, 1fr); }
  .paso .numeral { padding-top: 0.35rem; }
}

/* ---------- Viñeta de producto ---------- */
.vineta { background: var(--tinta-alzada); }
.vineta-int {
  max-width: 44rem;
  margin-inline: auto;
  padding: clamp(5rem, 12vh, 8rem) var(--margen);
}
.dialogo { display: grid; gap: 2.25rem; }
.turno { display: grid; gap: 0.4rem; }
.turno .quien {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--papel-tenue);
}
.turno-humano .dicho {
  font-family: var(--serif-i);
  font-style: italic;
  font-size: clamp(1.3rem, 2.8vw, 1.65rem);
  line-height: 1.4;
  color: var(--papel);
}
.turno-agente { border-left: 1px solid var(--ambar); padding-left: 1.5rem; }
.turno-agente .quien { color: var(--ambar); }
.turno-agente .dicho {
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: 1.65;
  color: var(--papel);
}
.dicho .raya { color: var(--ambar); margin-right: 0.5em; }

/* ---------- Por qué es distinto ---------- */
.pilares {
  margin-top: clamp(3rem, 8vh, 4.5rem);
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
.pilar {
  padding-block: 2.25rem;
  border-top: 1px solid var(--linea);
}
.pilar h3 {
  font-family: var(--sans);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ambar);
  margin-bottom: 0.9rem;
}
.pilar p { color: var(--papel-tenue); max-width: 38ch; }
.pilar p strong { color: var(--papel); }

@media (min-width: 50rem) {
  .pilares { grid-template-columns: 1fr 1fr; gap: 0 4rem; }
}

/* ---------- Cómo funciona: bitácora de 30 días ---------- */
.hitos { margin-top: clamp(3rem, 8vh, 4.5rem); position: relative; }
.hito {
  position: relative;
  padding: 0 0 clamp(2.75rem, 6vh, 3.75rem) clamp(1.75rem, 4vw, 2.5rem);
  border-left: 1px solid var(--linea);
}
.hito:last-child { padding-bottom: 0.5rem; }
.hito::before {
  content: "";
  position: absolute;
  left: -3.5px;
  top: 0.5em;
  width: 6px;
  height: 6px;
  background: var(--ambar);
  border-radius: 50%;
}
.hito .cuando {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ambar);
}
.hito h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.3rem, 2.6vw, 1.6rem);
  line-height: 1.25;
  margin-top: 0.55rem;
}
.hito p { margin-top: 0.65rem; color: var(--papel-tenue); max-width: 52ch; }

/* ---------- El piloto ---------- */
.panel {
  margin-top: clamp(3rem, 8vh, 4.5rem);
  border: 1px solid var(--linea);
  background: var(--tinta-alzada);
  padding: clamp(2rem, 5vw, 3.5rem);
}
.panel .sub {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--papel-tenue);
  margin-bottom: 1.4rem;
}
.incluye { display: grid; gap: 0.85rem; max-width: var(--medida); }
.incluye li {
  position: relative;
  padding-left: 1.6rem;
  color: var(--papel);
}
.incluye li::before {
  content: "·";
  position: absolute;
  left: 0.25rem;
  color: var(--ambar);
  font-family: var(--serif);
  font-size: 1.4em;
  line-height: 1.1;
}
.inversion {
  margin-top: 2.5rem;
  padding-top: 2.25rem;
  border-top: 1px solid var(--linea);
}
.precio {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.7rem, 4vw, 2.3rem);
  line-height: 1.2;
}
.precio .moneda { color: var(--ambar); }
.precio .periodo { font-size: 0.55em; color: var(--papel-tenue); }
.inversion p { color: var(--papel-tenue); max-width: var(--medida); margin-top: 1.1rem; }
.inversion p strong { color: var(--papel); }
.panel .btn { margin-top: 2.25rem; }

.nota-permanencia {
  margin-top: 2.5rem;
  font-family: var(--serif-i);
  font-style: italic;
  font-size: 1.15rem;
  line-height: 1.55;
  color: var(--papel-tenue);
  max-width: 52ch;
}
.nota-permanencia strong { font-family: var(--sans); font-style: normal; }

/* ---------- Preguntas frecuentes ---------- */
.faq { margin-top: clamp(2.5rem, 7vh, 4rem); max-width: 44rem; }
.faq details { border-top: 1px solid var(--linea); }
.faq details:last-child { border-bottom: 1px solid var(--linea); }
.faq summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1.4rem;
  font-family: var(--serif);
  font-size: clamp(1.125rem, 2.2vw, 1.3rem);
  line-height: 1.35;
  transition: color 0.25s ease;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--ambar-claro); }
.faq summary .signo {
  flex-shrink: 0;
  color: var(--ambar);
  font-family: var(--serif);
  font-size: 1.3em;
  line-height: 1;
  transition: transform 0.3s ease;
}
.faq details[open] summary .signo { transform: rotate(45deg); }
.faq .respuesta {
  padding: 0 0 1.6rem;
  color: var(--papel-tenue);
  max-width: 56ch;
}

/* ---------- Cierre ---------- */
.cierre { text-align: center; padding-block: clamp(7rem, 18vh, 12rem); }
.cierre .titulo { margin-inline: auto; max-width: 20ch; }
.cierre .entradilla { margin: 1.75rem auto 0; }
.cierre .btn { margin-top: 3rem; }
.cierre .regla-corta {
  width: 3.5rem;
  height: 1px;
  background: var(--ambar);
  opacity: 0.65;
  margin: 0 auto 2.5rem;
}

/* ---------- Pie ---------- */
.pie { border-top: 1px solid var(--linea); padding-block: 3rem 3.5rem; }
.pie-int {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}
.pie .lema {
  font-family: var(--serif-i);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--papel-tenue);
}
.pie .lema .marca-pie { font-family: var(--serif); font-style: normal; color: var(--papel); }
.pie .legal, .pie .colofon {
  font-size: 0.8125rem;
  color: var(--papel-tenue);
}
.pie .colofon { opacity: 0.75; }
@media (min-width: 50rem) {
  .pie-int { flex-direction: row; justify-content: space-between; align-items: baseline; }
}