/* ==========================================================================
   TE PAGARON EN HUMO — Ramón Merino
   Sistema visual compartido · Editorial Tiempo Finito
   Paleta y tipografía tomadas directamente de la portada del libro.
   ========================================================================== */

:root {
  /* Papel — el crema de la portada */
  --paper:      #faf6f0;
  --paper-warm: #f4ebe0;
  --paper-deep: #ece0d2;

  /* Tinta */
  --ink:        #17110b;
  --ink-80:     #3a2e22;
  --ink-60:     #6a5a48;
  --ink-40:     #9b8a76;
  --ink-20:     #cabba8;
  --ink-10:     #e4d8c8;

  /* Dorado del título HUMO */
  --gold:       #a47946;
  --gold-soft:  #c69a63;
  --gold-tint:  rgba(164,121,70,0.10);

  /* Noche — secciones oscuras */
  --night:      #14100c;
  --night-2:    #1d1813;

  --serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --cond:  'Barlow Condensed', 'Arial Narrow', Helvetica, sans-serif;
  --sans:  'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --rule:      1px solid var(--ink-20);
  --rule-soft: 1px solid var(--ink-10);

  --pad-x: clamp(24px, 5vw, 72px);
  --shadow-book: 0 40px 80px -32px rgba(23,17,11,0.45), 0 8px 24px -12px rgba(23,17,11,0.25);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
::selection { background: var(--gold); color: #fff; }

/* Textura de papel muy sutil, como el fondo de la portada */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(circle at 18% 12%, rgba(164,121,70,0.055), transparent 55%),
    radial-gradient(circle at 84% 78%, rgba(164,121,70,0.04), transparent 50%);
}
body > * { position: relative; z-index: 1; }

/* ── Tipografía base ─────────────────────────────────────────────── */

.eyebrow {
  font-family: var(--sans);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.36em;
  text-transform: uppercase;
  color: var(--gold);
}

.label {
  font-size: 0.6rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ink-40);
  padding-top: 8px;
}

.display {
  font-family: var(--cond);
  font-weight: 800;
  text-transform: uppercase;
  line-height: 0.88;
  letter-spacing: -0.005em;
  color: var(--ink);
}
.display .gold { color: var(--gold); }
.display .ghost { color: var(--ink-40); font-weight: 700; }

.lede {
  font-family: var(--serif);
  font-style: italic;
  color: var(--ink-60);
  line-height: 1.75;
}

.rule-short { width: 34px; height: 2px; background: var(--gold); }

/* ── Botones ─────────────────────────────────────────────────────── */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--sans);
  font-size: 0.66rem; font-weight: 400;
  letter-spacing: 0.22em; text-transform: uppercase;
  padding: 17px 40px;
  border: 1px solid transparent;
  cursor: pointer; text-decoration: none;
  transition: background .25s ease, color .25s ease, border-color .25s ease, transform .3s ease, box-shadow .3s ease;
}
.btn-solid { background: var(--ink); color: var(--paper); }
.btn-solid:hover { background: var(--gold); transform: translateY(-2px); box-shadow: 0 12px 28px -14px rgba(164,121,70,0.8); }

.btn-gold { background: var(--gold); color: #fff; }
.btn-gold:hover { background: var(--ink); transform: translateY(-2px); }

.btn-outline { background: transparent; color: var(--ink); border-color: var(--ink-20); }
.btn-outline:hover { border-color: var(--gold); color: var(--gold); }

.btn-ghost {
  font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-60); text-decoration: none;
  border-bottom: 1px solid var(--ink-20); padding-bottom: 3px;
  transition: color .2s, border-color .2s;
}
.btn-ghost:hover { color: var(--gold); border-color: var(--gold); }

/* ── Navegación ──────────────────────────────────────────────────── */

nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  display: flex; justify-content: space-between; align-items: center;
  padding: 22px var(--pad-x);
  background: rgba(250,246,240,0.86);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: padding .45s ease, background .45s ease, border-color .45s ease, box-shadow .45s ease;
}
nav.scrolled {
  padding: 12px var(--pad-x);
  border-bottom-color: var(--ink-10);
  box-shadow: 0 1px 30px rgba(23,17,11,0.05);
}

.nav-logo {
  display: flex; align-items: baseline; gap: 9px;
  font-family: var(--cond); font-size: 1.02rem; font-weight: 700;
  letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--ink-80); text-decoration: none;
  transition: color .2s;
}
.nav-logo:hover { color: var(--gold); }
.nav-logo .mark {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--gold); flex-shrink: 0; transform: translateY(-1px);
}

.nav-right { display: flex; align-items: center; gap: 26px; }

.nav-link {
  font-size: 0.63rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-60); text-decoration: none;
  border-bottom: 1px solid transparent; padding-bottom: 3px;
  transition: color .2s, border-color .2s;
  white-space: nowrap;
}
.nav-corto { display: none; }
.nav-link:hover { color: var(--ink); border-color: var(--gold); }
.nav-link.active { color: var(--ink); border-color: var(--gold); }

.nav-cta {
  font-family: var(--sans);
  font-size: 0.62rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--paper); background: var(--ink);
  padding: 12px 26px; border: none; cursor: pointer;
  opacity: 0; transform: translateY(-6px); pointer-events: none;
  transition: opacity .45s ease, transform .45s ease, background .2s;
  white-space: nowrap;
}
nav.scrolled .nav-cta { opacity: 1; transform: none; pointer-events: auto; }
.nav-cta:hover { background: var(--gold); }

/* ── Secciones genéricas ─────────────────────────────────────────── */

.section { padding: clamp(72px, 10vw, 130px) var(--pad-x); }
.section-tight { padding: clamp(56px, 7vw, 90px) var(--pad-x); }
.section-bordered { border-top: var(--rule-soft); }
.section-warm { background: var(--paper-warm); }
.wrap { max-width: 1240px; margin: 0 auto; }
.wrap-narrow { max-width: 780px; margin: 0 auto; }

.section-head {
  display: flex; flex-direction: column; gap: 14px;
  margin-bottom: clamp(36px, 5vw, 64px);
}
.section-title {
  font-family: var(--cond);
  font-size: clamp(2rem, 4.2vw, 3.4rem);
  font-weight: 800; text-transform: uppercase;
  line-height: 0.95; color: var(--ink);
}
.section-title .gold { color: var(--gold); }

/* ── Animación de entrada ────────────────────────────────────────── */

@keyframes up   { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

.ani { opacity: 0; animation: up .9s cubic-bezier(.2,.7,.3,1) forwards; }
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s cubic-bezier(.2,.7,.3,1), transform .9s cubic-bezier(.2,.7,.3,1); }
.reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .ani, .reveal { opacity: 1 !important; transform: none !important; }
}

/* ── Cabecera de páginas interiores ──────────────────────────────── */

.page-hero {
  padding: clamp(120px, 16vw, 168px) var(--pad-x) clamp(56px, 8vw, 96px);
  border-bottom: var(--rule-soft);
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: end;
}
.page-hero-title {
  font-family: var(--cond);
  font-size: clamp(2.8rem, 8vw, 6.4rem);
  font-weight: 800; text-transform: uppercase;
  /* 0.95, no menos: con 0.86 la tilde de NÚMEROS chocaba con la línea de arriba */
  line-height: 0.95; color: var(--ink); letter-spacing: -0.01em;
}
.page-hero-title .gold { color: var(--gold); }
.page-hero-note {
  font-family: var(--serif); font-style: italic;
  font-size: clamp(1rem, 1.5vw, 1.18rem);
  color: var(--ink-60); line-height: 1.8;
  border-left: 2px solid var(--gold); padding-left: 26px;
}

/* ── Pie ─────────────────────────────────────────────────────────── */

footer {
  border-top: var(--rule-soft);
  padding: clamp(40px, 6vw, 64px) var(--pad-x) clamp(28px, 4vw, 40px);
  background: var(--paper-warm);
}
.foot-grid {
  max-width: 1240px; margin: 0 auto;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px; align-items: start;
}
.foot-logo {
  font-family: var(--cond); font-weight: 700; font-size: 1.15rem;
  text-transform: uppercase; letter-spacing: 0.13em;
  color: var(--ink); text-decoration: none;
}
.foot-tag {
  font-family: var(--serif); font-style: italic;
  font-size: 0.9rem; color: var(--ink-60); margin-top: 10px;
}
.foot-col-title {
  font-size: 0.58rem; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--ink-40); margin-bottom: 16px;
}
.foot-links { display: flex; flex-direction: column; gap: 9px; }
.foot-links a {
  font-size: 0.82rem; color: var(--ink-60); text-decoration: none;
  transition: color .2s;
}
.foot-links a:hover { color: var(--gold); }
.foot-bottom {
  max-width: 1240px; margin: clamp(32px, 5vw, 52px) auto 0;
  padding-top: 22px; border-top: var(--rule-soft);
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  flex-wrap: wrap;
}
.foot-copy { font-size: 0.68rem; letter-spacing: 0.06em; color: var(--ink-40); }

/* ── Modales ─────────────────────────────────────────────────────── */

.modal-overlay {
  display: none; position: fixed; inset: 0; z-index: 1000;
  background: rgba(20,16,12,0.62);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  align-items: center; justify-content: center; padding: 24px;
}
.modal-overlay.open { display: flex; animation: fade .25s ease; }

.modal {
  background: var(--paper); width: 100%; max-width: 540px;
  border: 1px solid var(--ink-20);
  box-shadow: 0 40px 90px -30px rgba(20,16,12,0.6);
  animation: modalIn .38s cubic-bezier(.2,.7,.3,1);
  max-height: 92vh; overflow-y: auto;
}
@keyframes modalIn { from { opacity: 0; transform: translateY(24px) scale(.98); } to { opacity: 1; transform: none; } }

.modal-header {
  padding: 32px 36px 22px; border-bottom: var(--rule-soft);
  display: flex; justify-content: space-between; align-items: flex-start; gap: 16px;
}
.modal-title {
  font-family: var(--cond); font-size: 1.55rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: 0.03em; line-height: 1.05; color: var(--ink);
}
.modal-subtitle { margin-top: 7px; font-size: 0.78rem; color: var(--ink-60); }
.modal-close {
  background: none; border: 1px solid var(--ink-10); cursor: pointer;
  width: 34px; height: 34px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-60); font-size: 0.95rem;
  transition: background .2s, color .2s, border-color .2s;
}
.modal-close:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.modal-body { padding: 26px 36px 34px; display: flex; flex-direction: column; gap: 14px; }

/* ── Bloque QR Lightning (compartido index + valor por valor) ────── */

.qr-card {
  display: flex; flex-direction: column; align-items: center; gap: 18px;
  padding: 28px; background: var(--paper);
  border: 1px solid var(--ink-20);
  position: relative;
}
.qr-card::after {
  content: ''; position: absolute; inset: 7px;
  border: 1px solid var(--gold-tint); pointer-events: none;
}
.qr-card-label {
  font-size: 0.56rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--gold);
}
.qr-frame {
  padding: 14px; background: #fff;
  border: 1px solid var(--ink-10);
  box-shadow: 0 14px 30px -20px rgba(23,17,11,0.5);
}
.qr-frame img { width: 168px; height: 168px; image-rendering: pixelated; }
.qr-addr-row { display: flex; border: 1px solid var(--ink-20); width: 100%; max-width: 300px; }
.qr-addr {
  flex: 1; font-family: 'SFMono-Regular', Menlo, Consolas, monospace;
  font-size: 0.7rem; color: var(--ink-80); padding: 11px 12px;
  background: #fff; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  display: flex; align-items: center;
}
.qr-copy {
  background: var(--ink); color: var(--paper); border: none;
  padding: 11px 16px; font-family: var(--sans);
  font-size: 0.58rem; letter-spacing: 0.16em; text-transform: uppercase;
  cursor: pointer; flex-shrink: 0; transition: background .2s;
}
.qr-copy:hover { background: var(--gold); }
.qr-copy.copied { background: #2c6a4a; }

/* ── Responsive global ───────────────────────────────────────────── */

@media (max-width: 900px) {
  /* El logo no debe partirse en dos líneas: hacía crecer la barra a 100-128 px
     en tablets y móviles apaisados. */
  .nav-logo { font-size: 0.88rem; letter-spacing: 0.08em; white-space: nowrap; }
  .nav-right { gap: 16px; }
  .nav-link { font-size: 0.58rem; letter-spacing: 0.14em; }
  .page-hero { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; gap: 30px; }
  .foot-bottom { flex-direction: column; align-items: flex-start; }
}

/* A partir de aquí el enlace de la página actual estorba más que informa */
@media (max-width: 720px) {
  .nav-link.active { display: none; }
}

@media (max-width: 620px) {
  /* En móvil caben las tres cosas si se aprietan: marca, enlace y acción.
     El logo se fuerza a una línea (antes envolvía y la barra medía 90 px). */
  nav { padding-left: 16px; padding-right: 16px; gap: 10px; }
  .nav-logo { font-size: 0.72rem; letter-spacing: 0.06em; white-space: nowrap; }
  .nav-right { gap: 12px; }
  .nav-link { font-size: 0.53rem; letter-spacing: 0.08em; white-space: nowrap; }
  .nav-link:not(.nav-home) { display: inline-block; }
  /* El enlace de la página en la que ya estás no ocupa sitio */
  .nav-link.active { display: none; }
  .nav-cta { padding: 9px 12px; font-size: 0.53rem; letter-spacing: 0.08em; }
  /* Etiqueta corta solo en móvil */
  .nav-largo { display: none; }
  .nav-corto { display: inline; }
  .modal-header { padding: 22px 22px 16px; }
  .modal-body { padding: 18px 22px 26px; }
  .modal-title { font-size: 1.25rem; }
  .btn { padding: 15px 28px; }
}

/* Pantallas muy estrechas (iPhone SE y similares): última vuelta de tuerca
   para que sigan cabiendo marca, enlace y acción sin desbordar. */
@media (max-width: 359px) {
  nav { gap: 8px; padding-left: 13px; padding-right: 13px; }
  .nav-logo { font-size: 0.58rem; letter-spacing: 0.04em; }
  .nav-right { gap: 8px; }
  .nav-link { font-size: 0.5rem; letter-spacing: 0.05em; }
  .nav-cta { padding: 8px 10px; font-size: 0.5rem; letter-spacing: 0.05em; }
}