/* ============================================================
   LA REVOLUCIÓN MEXICANA — Landing de venta (Archivo de Guerras Latinas)
   Sistema visual: "cartel revolucionario 1913" x "editorial premium"
   Paleta y tipografia definidas por el equipo de diseno.
   ============================================================ */

/* ---------- Design tokens ---------- */
:root{
  /* Paleta base (tema claro / papel envejecido) */
  --bg:        #F2E6CE;
  --surface:   #FBF4E4;
  --ink:       #241B12;
  --ink-deep:  #1A140D;
  --primary:   #A31D1D;
  --primary-d: #731313;
  --accent:    #A8481A;
  --gold:      #B0862B;
  --gold-lt:   #D8B65A;
  --muted:     #5A4632;
  --line:      #D6C4A1;

  /* Papel oscuro (secciones dramaticas) */
  --dark-bg:    #1E1710;
  --dark-surf:  #2A2015;
  --dark-ink:   #F3E8D0;
  --dark-muted: #C4A97D;
  --dark-line:  #4A3A26;

  /* Espaciado / medidas */
  --container: 1160px;
  --container-narrow: 820px;
  --radius: 8px;
  --radius-lg: 16px;
  --radius-xl: 22px;

  /* Sombras */
  --shadow-sm: 0 2px 6px rgba(36,27,18,.10);
  --shadow:    0 14px 34px -18px rgba(36,27,18,.45);
  --shadow-lg: 0 40px 80px -30px rgba(36,27,18,.55);

  /* Tipografia */
  --f-display: "Anton", "Arial Narrow", Impact, sans-serif;
  --f-head: "Fraunces", "Playfair Display", Georgia, serif;
  --f-body: "Source Sans 3", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

/* ---------- Reset / base ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; scroll-padding-top:84px; }
body{
  margin:0;
  font-family:var(--f-body);
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  font-size:clamp(16px, 1rem + .2vw, 18px);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
/* Grano de papel sobre todo el sitio */
body::before{
  content:"";
  position:fixed; inset:0;
  pointer-events:none; z-index:9999;
  mix-blend-mode:multiply; opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }
h1,h2,h3,h4{ margin:0; line-height:1.06; }
summary{ cursor:pointer; list-style:none; }
summary::-webkit-details-marker{ display:none; }
summary::marker{ content:""; }

/* ---------- Layout helpers ---------- */
.container{ width:100%; max-width:var(--container); margin-inline:auto; padding-inline:22px; }
.sr-only{ position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden;
  clip-path:inset(50%); white-space:nowrap; border:0; }
.narrow{ max-width:var(--container-narrow); }
.section{ padding:clamp(56px, 8vw, 104px) 0; position:relative; }
.center{ text-align:center; }
.section__head{ max-width:760px; margin-inline:auto; margin-bottom:44px; }
.section__head.center{ text-align:center; }

.kicker{
  display:inline-flex; align-items:center; gap:.5em;
  font-family:var(--f-body); font-weight:700;
  text-transform:uppercase; letter-spacing:.18em;
  font-size:.74rem; color:var(--primary);
  padding:.35em 0; margin-bottom:14px;
}
.kicker::before,.kicker::after{ content:"✶"; color:var(--gold); font-size:.9em; }

.h2{
  font-family:var(--f-head);
  font-weight:600;
  font-size:clamp(1.9rem, 1.3rem + 2.4vw, 3rem);
  line-height:1.08;
  letter-spacing:-.01em;
}
.h2 em{ color:var(--primary); font-style:italic; }
.lead{
  font-size:clamp(1.05rem, 1rem + .4vw, 1.28rem);
  color:var(--muted);
  margin-top:16px;
}
.prose p{ margin:0 0 1.1em; }
.prose p:last-child{ margin-bottom:0; }

/* ---------- Botones ---------- */
.btn{
  --btn-bg:var(--primary); --btn-fg:#fff;
  display:inline-flex; align-items:center; justify-content:center; gap:.6em;
  background:var(--btn-bg); color:var(--btn-fg);
  font-family:var(--f-body); font-weight:700;
  font-size:1rem; letter-spacing:.01em;
  padding:.9em 1.6em; border:none; border-radius:var(--radius);
  box-shadow:0 10px 22px -10px rgba(163,29,29,.65), inset 0 1px 0 rgba(255,255,255,.18);
  transition:transform .16s ease, box-shadow .16s ease, background .16s ease;
  text-align:center; position:relative;
}
.btn:hover{ transform:translateY(-2px); box-shadow:0 16px 30px -12px rgba(163,29,29,.7); background:var(--primary-d); }
.btn:active{ transform:translateY(0); }
.btn--gold{ --btn-bg:linear-gradient(180deg,var(--gold-lt),var(--gold)); --btn-fg:var(--ink-deep);
  box-shadow:0 10px 22px -10px rgba(176,134,43,.7), inset 0 1px 0 rgba(255,255,255,.4); }
.btn--gold:hover{ background:var(--gold); }
.btn--ghost{ --btn-bg:transparent; --btn-fg:var(--ink);
  border:2px solid var(--ink); box-shadow:none; }
.btn--ghost:hover{ background:var(--ink); color:var(--surface); }
.btn--lg{ font-size:1.12rem; padding:1.05em 2em; flex-direction:column; gap:.15em; }
.btn--block{ display:flex; width:100%; }
.btn__sub{ display:block; font-weight:600; font-size:.78em; opacity:.85; margin-top:.15em; }

/* ---------- Estrellas ---------- */
.stars{ --pct:100%; display:inline-block; position:relative; font-size:1.05rem; line-height:1;
  font-family:Georgia, serif; letter-spacing:.08em; }
.stars::before{ content:"★★★★★"; color:rgba(90,70,50,.28); }
.stars::after{ content:"★★★★★"; color:var(--gold); position:absolute; inset:0; width:var(--pct); overflow:hidden; }

/* ============================================================
   BARRA DE ANUNCIO
   ============================================================ */
.announce{
  background:linear-gradient(90deg,var(--primary-d),var(--primary));
  color:#fff; font-weight:600; font-size:.92rem;
  text-align:center; position:relative; z-index:60;
}
.announce__inner{ display:flex; gap:14px 22px; align-items:center; justify-content:center;
  flex-wrap:wrap; padding:9px 22px; }
.announce strong{ color:var(--gold-lt); }
.announce__count{ display:inline-flex; gap:6px; align-items:center;
  font-variant-numeric:tabular-nums; font-weight:700; letter-spacing:.02em; }
.announce__count b{ background:rgba(0,0,0,.28); padding:.15em .5em; border-radius:5px; color:#fff; }

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header{ position:sticky; top:0; z-index:50; background:rgba(251,244,228,.86);
  backdrop-filter:saturate(1.2) blur(10px); border-bottom:1px solid transparent;
  transition:box-shadow .2s ease, border-color .2s ease; }
.site-header.is-stuck{ box-shadow:0 10px 30px -20px rgba(36,27,18,.6); border-color:var(--line); }
.nav{ display:flex; align-items:center; gap:24px; padding:12px 0; }
.brand{ display:flex; align-items:center; gap:11px; font-family:var(--f-display);
  font-size:1.15rem; letter-spacing:.02em; color:var(--ink); text-transform:uppercase; }
.brand__mark{ width:34px; height:34px; flex:none; border-radius:50%; object-fit:cover; border:2px solid var(--gold); }
.brand small{ display:block; font-family:var(--f-body); font-weight:600; font-size:.6rem;
  letter-spacing:.22em; color:var(--primary); text-transform:uppercase; margin-top:2px; }
.nav__links{ display:flex; gap:22px; margin-left:auto; list-style:none; padding:0; margin-block:0; }
.nav__links a{ font-weight:600; font-size:.95rem; color:var(--muted); position:relative; padding:4px 0; }
.nav__links a:hover{ color:var(--primary); }
.nav__links a::after{ content:""; position:absolute; left:0; bottom:-2px; height:2px; width:0;
  background:var(--primary); transition:width .2s ease; }
.nav__links a:hover::after{ width:100%; }
.nav__cta{ margin-left:8px; }
.nav__links a.btn, .nav__links a.btn:hover{ color:#fff; }
.nav__links a.btn::after{ display:none; }
.nav__toggle{ display:none; margin-left:auto; background:none; border:2px solid var(--line);
  border-radius:8px; width:44px; height:40px; align-items:center; justify-content:center; }
.nav__toggle span, .nav__toggle span::before, .nav__toggle span::after{
  content:""; display:block; width:20px; height:2px; background:var(--ink); position:relative; transition:.2s; }
.nav__toggle span::before{ position:absolute; top:-6px; }
.nav__toggle span::after{ position:absolute; top:6px; }

/* ============================================================
   HERO
   ============================================================ */
.hero{ position:relative; overflow:hidden; padding:clamp(40px,6vw,76px) 0 clamp(50px,7vw,88px);
  background:
    radial-gradient(120% 90% at 80% -10%, rgba(176,134,43,.16), transparent 60%),
    radial-gradient(100% 80% at 8% 110%, rgba(163,29,29,.10), transparent 55%);
}
.hero__inner{ display:grid; grid-template-columns:1.05fr .95fr; gap:clamp(28px,5vw,64px); align-items:center; }
.hero__eyebrow{ font-family:var(--f-head); font-style:italic; font-size:1.05rem; color:var(--accent);
  margin-bottom:14px; }
/* Pastilla de continuidad con el canal de YouTube (fuente del tráfico) */
.hero__channel{ display:inline-flex; align-items:center; gap:10px; margin-bottom:18px;
  background:var(--surface); border:1px solid var(--line); border-radius:50px;
  padding:6px 8px 6px 7px; font-size:.86rem; font-weight:600; color:var(--muted);
  box-shadow:var(--shadow-sm); transition:border-color .16s ease, transform .16s ease; }
.hero__channel:hover{ border-color:var(--gold); transform:translateY(-1px); }
.hero__channel img{ width:26px; height:26px; border-radius:50%; object-fit:cover; }
.hero__channel b{ color:var(--ink); }
.hero__channel-yt{ background:var(--primary); color:#fff; font-size:.68rem; font-weight:700;
  padding:.34em .8em; border-radius:50px; letter-spacing:.06em; text-transform:uppercase; }
.hero h1{ font-family:var(--f-display); font-weight:400; text-transform:uppercase;
  font-size:clamp(2.2rem, 1.2rem + 4.6vw, 4.05rem); line-height:.98; letter-spacing:.005em; color:var(--ink); }
.hero h1 .hl{ color:var(--primary); position:relative; white-space:nowrap; }
.hero__lead{ font-size:clamp(1.05rem,1rem + .5vw,1.24rem); color:var(--muted); margin:20px 0 22px; max-width:36ch; }
.hero__rating{ display:flex; align-items:center; gap:12px; flex-wrap:wrap; margin-bottom:22px; font-size:.95rem; }
.hero__rating b{ color:var(--ink); }
.hero__rating .sep{ color:var(--line); }
.cta-row{ display:flex; gap:14px; flex-wrap:wrap; align-items:center; }
.cta-note{ margin-top:12px; font-size:.86rem; color:var(--muted); display:flex; align-items:center; gap:8px; }
.cta-note::before{ content:"🔒"; }

.checklist{ list-style:none; padding:0; margin:26px 0 0; display:grid; gap:12px; }
/* display:block (no flex): con flex, cada nodo de texto suelto + <strong> se vuelve un flex-item y desordena la lectura */
.checklist li{ display:block; position:relative; padding-left:33px; font-size:.98rem; color:var(--ink); }
.checklist li::before{ content:""; position:absolute; left:0; top:2px; width:22px; height:22px;
  background:var(--primary); border-radius:50%;
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9.5 16.2 5.3 12l-1.4 1.4 5.6 5.6 12-12-1.4-1.4z'/%3E%3C/svg%3E") center/70% no-repeat;
          mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9.5 16.2 5.3 12l-1.4 1.4 5.6 5.6 12-12-1.4-1.4z'/%3E%3C/svg%3E") center/70% no-repeat; }

/* ---------- Mockup 3D del libro ---------- */
.hero__media{ display:flex; justify-content:center; align-items:center; position:relative; perspective:1600px; }
.hero__media::after{ /* halo de rayos detras del libro */
  content:""; position:absolute; inset:-8% -6%; z-index:0; opacity:.5;
  background:repeating-conic-gradient(from 0deg at 50% 46%, rgba(163,29,29,.14) 0deg 5deg, transparent 5deg 10deg);
  -webkit-mask:radial-gradient(circle at 50% 46%, #000 12%, transparent 66%);
          mask:radial-gradient(circle at 50% 46%, #000 12%, transparent 66%);
}
.book{ position:relative; z-index:1; transform:rotateY(-22deg) rotateX(4deg); transform-style:preserve-3d;
  transition:transform .5s cubic-bezier(.2,.7,.2,1); filter:drop-shadow(0 34px 42px rgba(26,20,13,.5)); }
.hero__media:hover .book{ transform:rotateY(-12deg) rotateX(2deg); }
.book__case{ position:relative; width:min(325px,68vw); aspect-ratio:760/1361; transform-style:preserve-3d; }
.book__spine{ position:absolute; left:0; top:3px; height:calc(100% - 7px); width:30px;
  transform:translateX(-12px) rotateY(72deg); transform-origin:left center;
  background:linear-gradient(90deg,var(--primary-d),#5a0f0f); border-radius:2px; }
.book__cover{ position:absolute; inset:0; border-radius:3px 7px 7px 3px; overflow:hidden;
  background:var(--bg); border:1px solid rgba(0,0,0,.15); }
.book__cover img{ width:100%; height:100%; object-fit:cover; }
.book__cover::after{ /* curvatura y brillo del lomo sobre la portada real */
  content:""; position:absolute; inset:0; pointer-events:none; border-radius:inherit;
  box-shadow:inset -22px 0 40px -30px rgba(0,0,0,.6), inset 3px 0 0 rgba(255,255,255,.25); }
.book__badge{ position:absolute; z-index:6; bottom:-12px; left:-16px; /* abajo-izquierda: zona sin letras de la portada real */
  background:var(--gold); color:var(--ink-deep); font-family:var(--f-display); text-transform:uppercase;
  font-size:.82rem; padding:10px 12px; border-radius:50%; width:74px; height:74px;
  display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center; line-height:.95;
  transform:rotate(-14deg); box-shadow:var(--shadow); }
.book__badge b{ font-size:1.15rem; }

/* ============================================================
   BARRA DE ESTADISTICAS
   ============================================================ */
.stats{ background:var(--ink-deep); color:var(--dark-ink); }
.stats__grid{ display:grid; grid-template-columns:repeat(4,1fr); }
.stat{ padding:30px 18px; text-align:center; border-right:1px solid var(--dark-line); }
.stat:last-child{ border-right:none; }
.stat b{ display:block; font-family:var(--f-display); font-size:clamp(1.8rem, 1.2rem + 2vw, 2.7rem);
  color:var(--gold-lt); line-height:1; }
.stat span{ display:block; font-size:.86rem; color:var(--dark-muted); margin-top:8px; }

/* ============================================================
   PROBLEMA (banda oscura, PAS)
   ============================================================ */
.problem{ background:var(--dark-bg); color:var(--dark-ink); position:relative; }
.problem::before{ content:""; position:absolute; inset:0; opacity:.05; mix-blend-mode:screen;
  background:repeating-conic-gradient(from 0deg at 50% 0%, rgba(176,134,43,.9) 0deg 4deg, transparent 4deg 8deg);
  -webkit-mask:radial-gradient(120% 90% at 50% 0%, #000, transparent 70%); mask:radial-gradient(120% 90% at 50% 0%, #000, transparent 70%); }
.problem .kicker{ color:var(--gold-lt); }
.problem .kicker::before,.problem .kicker::after{ color:var(--gold-lt); }
.problem .h2{ color:#fff; }
.problem .h2 em{ color:var(--gold-lt); }
.problem .prose{ color:var(--dark-muted); font-size:1.08rem; }
.problem .prose strong{ color:var(--dark-ink); }
.problem__inner{ position:relative; z-index:1; }

/* ============================================================
   SOLUCION
   ============================================================ */
.solution{ background:var(--surface); }
.solution__grid{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(30px,5vw,64px); align-items:center; }
.pillars{ list-style:none; padding:0; margin:26px 0 0; display:grid; gap:14px; }
.pillars li{ display:flex; gap:14px; align-items:flex-start; }
.pillars .ic{ flex:none; width:44px; height:44px; border-radius:12px; display:grid; place-items:center;
  background:rgba(163,29,29,.10); color:var(--primary); font-size:1.3rem; }
.pillars b{ display:block; font-family:var(--f-head); font-size:1.05rem; color:var(--ink); }
.pillars span{ font-size:.95rem; color:var(--muted); }
.solution__aside{ background:var(--ink-deep); color:var(--dark-ink); border-radius:var(--radius-lg);
  padding:34px 30px; box-shadow:var(--shadow); position:relative; overflow:hidden; }
.solution__aside::before{ content:"“"; position:absolute; top:-18px; left:14px; font-family:var(--f-head);
  font-size:8rem; color:var(--gold); opacity:.22; }
.solution__aside p{ font-family:var(--f-head); font-size:1.3rem; line-height:1.4; position:relative; z-index:1; }
.solution__aside cite{ display:block; margin-top:16px; font-family:var(--f-body); font-style:normal;
  color:var(--gold-lt); font-weight:700; font-size:.92rem; }

/* ============================================================
   QUE VAS A APRENDER (grid de beneficios)
   ============================================================ */
.learn-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:18px; }
.learn-card{ background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-lg);
  padding:24px 24px 24px 62px; position:relative; box-shadow:var(--shadow-sm);
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.learn-card:hover{ transform:translateY(-3px); box-shadow:var(--shadow); border-color:var(--gold); }
.learn-card::before{ content:""; position:absolute; left:22px; top:26px; width:26px; height:26px;
  background:var(--primary);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9.5 16.2 5.3 12l-1.4 1.4 5.6 5.6 12-12-1.4-1.4z'/%3E%3C/svg%3E") center/contain no-repeat;
          mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9.5 16.2 5.3 12l-1.4 1.4 5.6 5.6 12-12-1.4-1.4z'/%3E%3C/svg%3E") center/contain no-repeat; }
.learn-card h3{ font-family:var(--f-head); font-size:1.12rem; color:var(--ink); margin-bottom:7px; line-height:1.2; }
.learn-card p{ font-size:.95rem; color:var(--muted); margin:0; }

/* ============================================================
   CONTENIDO / CAPITULOS
   ============================================================ */
.inside{ background:var(--surface); }
.inside__grid{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(30px,5vw,60px); align-items:start; }
.book-facts{ list-style:none; padding:0; margin:22px 0 0; display:grid; grid-template-columns:1fr 1fr; gap:14px; }
.book-facts li{ background:var(--bg); border:1px solid var(--line); border-radius:10px; padding:14px 16px; }
.book-facts b{ display:block; font-family:var(--f-display); color:var(--primary); font-size:1.4rem; line-height:1; }
.book-facts span{ font-size:.85rem; color:var(--muted); }

.chapters{ display:grid; gap:10px; }
.chapter{ background:var(--surface); border:1px solid var(--line); border-radius:12px; overflow:hidden; }
.chapter__btn{ width:100%; display:flex; align-items:center; gap:16px; text-align:left;
  background:none; border:none; padding:16px 18px; color:var(--ink); }
.chapter__num{ flex:none; width:40px; height:40px; border-radius:9px; display:grid; place-items:center;
  background:var(--ink-deep); color:var(--gold-lt); font-family:var(--f-display); font-size:1.1rem; }
.chapter__title{ font-family:var(--f-head); font-weight:600; font-size:1.05rem; flex:1; }
.chapter__ic{ flex:none; width:22px; height:22px; position:relative; transition:transform .25s ease; color:var(--primary); }
.chapter__ic::before,.chapter__ic::after{ content:""; position:absolute; background:currentColor; border-radius:2px; }
.chapter__ic::before{ left:0; top:10px; width:22px; height:2px; }
.chapter__ic::after{ left:10px; top:0; width:2px; height:22px; transition:opacity .25s; }
.chapter[open] .chapter__ic::after{ opacity:0; }
.chapter[open] .chapter__ic{ transform:rotate(180deg); }
.chapter__body{ padding:2px 18px 18px 74px; }
.chapter__body p{ margin:0; color:var(--muted); font-size:.97rem; }

/* ============================================================
   BONOS
   ============================================================ */
.bonuses{ background:var(--dark-bg); color:var(--dark-ink); }
.bonuses .h2{ color:#fff; }
.bonuses .h2 em{ color:var(--gold-lt); }
.bonuses .lead{ color:var(--dark-muted); }
.bonus-stack{ display:grid; gap:16px; max-width:860px; margin:40px auto 0; }
.bonus{ display:grid; grid-template-columns:64px 1fr auto; gap:20px; align-items:center;
  background:var(--dark-surf); border:1px solid var(--dark-line); border-radius:var(--radius-lg);
  padding:22px 24px; position:relative; }
.bonus__ic{ width:64px; height:64px; border-radius:14px; display:grid; place-items:center;
  background:linear-gradient(180deg, rgba(176,134,43,.25), rgba(176,134,43,.08));
  border:1px solid var(--gold); font-size:1.7rem; }
.bonus__body h3{ font-family:var(--f-head); font-size:1.14rem; color:#fff; margin-bottom:5px; }
.bonus__body p{ margin:0; font-size:.93rem; color:var(--dark-muted); }
.bonus__val{ text-align:right; flex:none; }
.bonus__val .lbl{ display:block; font-size:.68rem; text-transform:uppercase; letter-spacing:.15em; color:var(--dark-muted); }
.bonus__val b{ font-family:var(--f-display); font-size:1.5rem; color:var(--gold-lt); }
.value-total{ max-width:860px; margin:20px auto 0; display:flex; justify-content:space-between; align-items:center;
  flex-wrap:wrap; gap:14px; padding:20px 26px; border:2px dashed var(--gold); border-radius:var(--radius-lg); }
.value-total span{ font-family:var(--f-head); font-size:1.15rem; }
.value-total b{ font-family:var(--f-display); font-size:2rem; color:var(--gold-lt); }
.value-total .strike{ text-decoration:line-through; opacity:.6; font-size:1.3rem; color:var(--dark-muted); }

/* ============================================================
   AUTOR
   ============================================================ */
.author__card{ display:grid; grid-template-columns:220px 1fr; gap:clamp(24px,4vw,48px); align-items:center;
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-xl);
  padding:clamp(26px,4vw,44px); box-shadow:var(--shadow); }
.author__avatar{ width:220px; height:260px; border-radius:16px; overflow:hidden; position:relative;
  background:radial-gradient(120% 100% at 50% 0%, var(--accent), var(--primary-d));
  box-shadow:var(--shadow); }
.author__avatar img{ width:100%; height:100%; object-fit:cover; }
.author__body h3{ font-family:var(--f-display); text-transform:uppercase; font-size:clamp(1.5rem, 1rem + 2vw, 2.1rem);
  color:var(--ink); }
.author__role{ color:var(--primary); font-weight:700; margin:4px 0 14px; }
.author__body p{ color:var(--muted); }
.creds{ list-style:none; padding:0; margin:16px 0 0; display:grid; gap:8px; }
.creds li{ display:flex; gap:10px; align-items:flex-start; font-size:.94rem; }
.creds li::before{ content:"❖"; color:var(--gold); }
.author__yt{ margin-top:22px; }

/* ============================================================
   TESTIMONIOS
   ============================================================ */
.testimonials{ background:var(--bg); }
.testi-summary{ display:flex; align-items:center; justify-content:center; gap:16px; flex-wrap:wrap;
  margin:0 auto 40px; max-width:680px; text-align:center; }
.testi-summary .big{ font-family:var(--f-display); font-size:3rem; color:var(--primary); line-height:1; }
.testi-summary p{ margin:6px 0 0; color:var(--muted); font-size:.95rem; }
.testi-grid{ columns:3; column-gap:18px; }
.testi-card{ break-inside:avoid; background:var(--surface); border:1px solid var(--line); border-radius:14px;
  padding:22px; margin-bottom:18px; box-shadow:var(--shadow-sm); }
.testi-card .stars{ font-size:.95rem; margin-bottom:10px; }
.testi-card blockquote{ margin:0 0 14px; font-size:.98rem; color:var(--ink); }
.testi-card blockquote::before{ content:"“"; color:var(--gold); font-family:var(--f-head); font-size:1.4em; margin-right:.05em; }
.testi-who{ display:flex; align-items:center; gap:12px; }
.testi-who .av{ width:40px; height:40px; border-radius:50%; flex:none; display:grid; place-items:center;
  background:var(--ink-deep); color:var(--gold-lt); font-family:var(--f-display); font-size:1rem; }
.testi-who b{ display:block; font-size:.94rem; color:var(--ink); }
.testi-who span{ display:block; font-size:.8rem; color:var(--muted); }
.verified{ display:inline-flex; align-items:center; gap:5px; font-size:.72rem; color:var(--accent); font-weight:700; margin-top:2px; }
.verified::before{ content:"✔"; }

/* ============================================================
   OFERTA / PRECIO
   ============================================================ */
.offer{ background:var(--ink-deep); color:var(--dark-ink); position:relative; overflow:hidden; }
.offer::before{ content:""; position:absolute; inset:0; opacity:.5;
  background:repeating-conic-gradient(from 0deg at 50% 42%, rgba(163,29,29,.18) 0deg 5deg, transparent 5deg 10deg);
  -webkit-mask:radial-gradient(circle at 50% 42%, #000 6%, transparent 60%); mask:radial-gradient(circle at 50% 42%, #000 6%, transparent 60%); }
.offer .container{ position:relative; z-index:1; }
.offer .kicker{ color:var(--gold-lt); } .offer .kicker::before,.offer .kicker::after{ color:var(--gold-lt); }
.offer .h2{ color:#fff; } .offer .h2 em{ color:var(--gold-lt); }
.price-card{ max-width:560px; margin:38px auto 0; background:var(--surface); color:var(--ink);
  border-radius:var(--radius-xl); padding:clamp(26px,4vw,42px); box-shadow:var(--shadow-lg); position:relative;
  border:1px solid var(--line); }
.price-card__ribbon{ position:absolute; top:18px; right:-8px; background:var(--primary); color:#fff;
  font-family:var(--f-display); text-transform:uppercase; font-size:.9rem; padding:7px 16px 7px 14px;
  box-shadow:var(--shadow); }
.price-card__ribbon::after{ content:""; position:absolute; right:0; bottom:-8px; border:4px solid var(--primary-d);
  border-right-color:transparent; border-bottom-color:transparent; }
.price-title{ font-family:var(--f-head); font-size:1.3rem; text-align:center; }
.price{ text-align:center; margin:12px 0 4px; }
.price__old{ font-size:1.4rem; color:var(--muted); text-decoration:line-through; margin-right:12px; }
.price__now{ font-family:var(--f-display); font-size:clamp(3rem, 2rem + 5vw, 4.2rem); color:var(--primary); line-height:.9; }
.price__cur{ font-size:.5em; vertical-align:super; }
.price__save{ display:inline-block; margin-top:8px; background:rgba(163,29,29,.12); color:var(--primary-d);
  font-weight:700; padding:.35em .9em; border-radius:50px; font-size:.9rem; }
.included{ list-style:none; padding:0; margin:22px 0; display:grid; gap:10px; border-top:1px solid var(--line);
  border-bottom:1px solid var(--line); padding-block:20px; }
.included li{ display:block; position:relative; padding-left:33px; font-size:.96rem; }
.included li b{ color:var(--ink); }
.included li::before{ content:""; position:absolute; left:0; top:2px; width:22px; height:22px; background:var(--gold);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9.5 16.2 5.3 12l-1.4 1.4 5.6 5.6 12-12-1.4-1.4z'/%3E%3C/svg%3E") center/contain no-repeat;
          mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9.5 16.2 5.3 12l-1.4 1.4 5.6 5.6 12-12-1.4-1.4z'/%3E%3C/svg%3E") center/contain no-repeat; }
.price-cta-note{ text-align:center; font-size:.84rem; color:var(--muted); margin-top:12px; }

/* Contador */
.countdown{ display:flex; gap:10px; justify-content:center; margin:4px 0 18px; }
.count-box{ background:var(--dark-surf); color:var(--surface); border-radius:10px; padding:10px 6px; min-width:66px;
  text-align:center; border:1px solid var(--dark-line); box-shadow:0 6px 16px -8px rgba(0,0,0,.6); }
.count-box b{ display:block; font-family:var(--f-display); font-size:1.9rem; line-height:1; color:var(--gold-lt);
  font-variant-numeric:tabular-nums; }
.count-box span{ font-size:.64rem; text-transform:uppercase; letter-spacing:.1em; color:var(--dark-muted); }
.count-lead{ text-align:center; color:var(--gold-lt); font-weight:700; letter-spacing:.02em; margin-bottom:8px;
  text-transform:uppercase; font-size:.82rem; }

/* Barra de escasez */
.stock{ max-width:560px; margin:22px auto 0; }
.stock__bar{ height:14px; border-radius:50px; background:rgba(255,255,255,.12); overflow:hidden; border:1px solid var(--dark-line); }
.stock__fill{ height:100%; width:69%; border-radius:50px;
  background:linear-gradient(90deg,var(--gold),var(--primary)); box-shadow:0 0 12px rgba(163,29,29,.5); }
.stock__label{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:4px 16px; font-size:.82rem; color:var(--dark-muted); margin-top:8px; }
.stock__label b{ color:var(--gold-lt); }

/* Trust badges */
.trust-badges{ display:flex; flex-wrap:wrap; gap:12px 20px; justify-content:center; margin:34px auto 0; max-width:820px; }
.trust-badges li{ display:flex; align-items:center; gap:8px; list-style:none; font-size:.88rem; color:var(--dark-muted); }
.trust-badges .ic{ color:var(--gold-lt); }

/* ============================================================
   GARANTIA
   ============================================================ */
.guarantee{ background:var(--surface); }
.guarantee__card{ max-width:900px; margin-inline:auto; display:grid; grid-template-columns:160px 1fr;
  gap:clamp(22px,4vw,44px); align-items:center; background:var(--bg); border:2px solid var(--gold);
  border-radius:var(--radius-xl); padding:clamp(26px,4vw,44px); box-shadow:var(--shadow); position:relative; }
.seal{ width:160px; height:160px; border-radius:50%; display:grid; place-items:center; position:relative;
  background:radial-gradient(circle at 50% 40%, var(--surface), var(--bg)); border:3px double var(--gold);
  color:var(--primary); text-align:center; }
.seal b{ font-family:var(--f-display); font-size:2.6rem; line-height:.85; color:var(--primary); }
.seal span{ font-size:.66rem; text-transform:uppercase; letter-spacing:.16em; color:var(--muted); }
.seal::before{ content:""; position:absolute; inset:9px; border:1px solid var(--gold); border-radius:50%; opacity:.55; }
.guarantee__body h3{ font-family:var(--f-head); font-size:clamp(1.4rem, 1rem + 1.6vw, 1.9rem); color:var(--ink); margin-bottom:10px; }
.guarantee__body p{ color:var(--muted); margin:0; }

/* ============================================================
   FAQ
   ============================================================ */
.faq{ background:var(--bg); }
.faq__list{ max-width:800px; margin-inline:auto; display:grid; gap:12px; }
.faq__item{ background:var(--surface); border:1px solid var(--line); border-radius:12px; overflow:hidden; }
.faq__q{ width:100%; display:flex; align-items:center; justify-content:space-between; gap:16px; text-align:left;
  background:none; border:none; padding:18px 20px; font-family:var(--f-head); font-weight:600; font-size:1.05rem; color:var(--ink); }
.faq__q .chapter__ic{ flex:none; }
.faq__a{ padding:0 20px 18px; }
.faq__item[open] .chapter__ic{ transform:rotate(180deg); }
.faq__item[open] .chapter__ic::after{ opacity:0; }
.faq__a p{ margin:0; color:var(--muted); font-size:.97rem; }

/* ============================================================
   CTA FINAL
   ============================================================ */
.final{ background:var(--dark-bg); color:var(--dark-ink); text-align:center; position:relative; overflow:hidden; }
.final::before{ content:""; position:absolute; inset:0; opacity:.6;
  background:repeating-conic-gradient(from 0deg at 50% 40%, rgba(176,134,43,.14) 0deg 5deg, transparent 5deg 10deg);
  -webkit-mask:radial-gradient(circle at 50% 40%, #000 4%, transparent 62%); mask:radial-gradient(circle at 50% 40%, #000 4%, transparent 62%); }
.final .container{ position:relative; z-index:1; }
.final .h2{ color:#fff; max-width:16ch; margin-inline:auto; }
.final .h2 em{ color:var(--gold-lt); }
.final p{ color:var(--dark-muted); max-width:60ch; margin:18px auto 26px; font-size:1.08rem; }
.final .price__now{ color:var(--gold-lt); }
.final .price__old{ color:var(--dark-muted); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer{ background:var(--ink-deep); color:var(--dark-muted); font-size:.9rem; }
.footer__top{ display:flex; flex-wrap:wrap; gap:26px; justify-content:space-between; padding:48px 0 30px; }
.footer__brand{ max-width:340px; }
.footer__brand .brand{ color:var(--surface); }
.footer__brand p{ margin:14px 0 0; color:var(--dark-muted); }
.footer__cols{ display:flex; gap:56px; flex-wrap:wrap; }
.footer__col h4{ font-family:var(--f-body); text-transform:uppercase; letter-spacing:.14em; font-size:.76rem;
  color:var(--gold-lt); margin-bottom:14px; }
.footer__col a{ display:block; color:var(--dark-muted); margin-bottom:9px; }
.footer__col a:hover{ color:var(--surface); }
.footer__bottom{ border-top:1px solid var(--dark-line); padding:20px 0; display:flex; flex-wrap:wrap; gap:12px;
  justify-content:space-between; align-items:center; font-size:.8rem; }
.footer__disclaimer{ max-width:100%; color:var(--dark-muted); font-size:.8rem; line-height:1.65; padding-bottom:26px; }

/* ============================================================
   Barra CTA fija (solo móvil)
   ============================================================ */
.mobile-cta{ display:none; }
@media (max-width:760px){
  .mobile-cta{ display:flex; align-items:center; gap:12px; position:fixed; left:0; right:0; bottom:0; z-index:55;
    background:rgba(26,20,13,.97); backdrop-filter:blur(8px); border-top:1px solid var(--dark-line);
    padding:10px 16px calc(10px + env(safe-area-inset-bottom, 0px));
    transform:translateY(115%); transition:transform .3s ease; box-shadow:0 -12px 30px -18px rgba(0,0,0,.85); }
  .mobile-cta.is-visible{ transform:translateY(0); }
  .mobile-cta__price{ color:var(--surface); line-height:1.05; }
  .mobile-cta__price s{ color:var(--dark-muted); font-size:.78rem; margin-right:5px; }
  .mobile-cta__price b{ font-family:var(--f-display); color:var(--gold-lt); font-size:1.35rem; }
  .mobile-cta .btn{ margin-left:auto; padding:.8em 1.15em; white-space:nowrap; }
  body.has-mobilecta{ padding-bottom:78px; }
}

/* ============================================================
   Animaciones de entrada
   ============================================================ */
/* El contenido es visible por defecto; solo se oculta para animar si el JS está activo */
.reveal{ transition:opacity .6s ease, transform .6s ease; }
html.js .reveal{ opacity:0; transform:translateY(22px); }
html.js .reveal.in{ opacity:1; transform:none; }
@media (prefers-reduced-motion:reduce){
  .reveal, html.js .reveal{ opacity:1; transform:none; transition:none; }
  html{ scroll-behavior:auto; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:960px){
  .hero__inner{ grid-template-columns:1fr; text-align:center; }
  .hero__lead{ margin-inline:auto; }
  .hero__rating,.cta-row{ justify-content:center; }
  .checklist{ text-align:left; max-width:460px; margin-inline:auto; }
  .hero__media{ order:-1; }
  .solution__grid,.inside__grid{ grid-template-columns:1fr; }
  .testi-grid{ columns:2; }
  .learn-grid{ grid-template-columns:1fr; }
  .author__card{ grid-template-columns:1fr; text-align:center; justify-items:center; }
  .creds{ text-align:left; }
  .guarantee__card{ grid-template-columns:1fr; justify-items:center; text-align:center; }
  .book__case{ width:min(250px,58vw); }
}
@media (max-width:760px){
  .nav__links{ position:fixed; inset:0 0 auto 0; top:0; flex-direction:column; background:var(--surface);
    padding:88px 26px 30px; gap:6px; transform:translateY(-100%); transition:transform .3s ease;
    box-shadow:var(--shadow-lg); height:auto; margin:0; }
  .nav__links.open{ transform:translateY(0); }
  .nav__links a{ padding:14px 0; border-bottom:1px solid var(--line); font-size:1.1rem; width:100%; }
  .nav__cta{ display:none; }
  .nav__toggle{ display:flex; z-index:60; }
  body.nav-open .nav__toggle span{ background:transparent; }
  body.nav-open .nav__toggle span::before{ top:0; transform:rotate(45deg); }
  body.nav-open .nav__toggle span::after{ top:0; transform:rotate(-45deg); }
  .stats__grid{ grid-template-columns:1fr 1fr; }
  .stat:nth-child(2){ border-right:none; }
  .stat:nth-child(1),.stat:nth-child(2){ border-bottom:1px solid var(--dark-line); }
  .bonus{ grid-template-columns:52px 1fr; }
  .bonus__ic{ width:52px; height:52px; font-size:1.4rem; }
  .bonus__val{ grid-column:2; text-align:left; }
  .testi-grid{ columns:1; }
  .value-total{ justify-content:center; text-align:center; }
  .footer__top{ flex-direction:column; }
}
@media (max-width:480px){
  .hero h1 .hl{ white-space:normal; }
}
@media (max-width:420px){
  .count-box{ min-width:0; flex:1; }
  .book-facts{ grid-template-columns:1fr; }
}