/* ============================================================================
   MÉTODO F90 — Página de cambios
   ----------------------------------------------------------------------------
   Usa el mismo sistema de marca que bienvenida.alvarocobos.com:
   mismos colores, misma tipografía, mismos botones y mismos radios.
   Si algún día cambias la marca allí, cambia estas variables y ya.
   ========================================================================== */

:root{
  /* ── Superficies ────────────────────────────────────────────────────── */
  --bg:#0A0908;
  --bg-2:#0D0C0B;
  --surface:#121110;
  --surface-2:#191716;

  /* ── Líneas ─────────────────────────────────────────────────────────── */
  --line:rgba(255,255,255,.07);
  --line-2:rgba(255,255,255,.12);
  --line-3:rgba(255,255,255,.2);

  /* ── Texto ──────────────────────────────────────────────────────────── */
  --text:#F6F3F0;
  --text-2:#B4ADA5;
  --text-3:#8B847C;
  --ink:#0A0908;

  /* ── Acento ─────────────────────────────────────────────────────────── */
  --accent:#FF5A00;
  --accent-2:#FF8A3D;
  --accent-08:rgba(255,90,0,.08);
  --accent-14:rgba(255,90,0,.14);
  --accent-22:rgba(255,90,0,.22);
  --accent-45:rgba(255,90,0,.45);

  /* ── Radios ─────────────────────────────────────────────────────────── */
  --r-sm:12px;
  --r-md:16px;
  --r-lg:22px;
  --r-xl:28px;

  /* ── Métricas ───────────────────────────────────────────────────────── */
  --max:1160px;
  --gutter:clamp(20px,5vw,40px);
  --sect:clamp(76px,9vw,128px);
  --header-h:74px;

  /* ── Sombras y transiciones ─────────────────────────────────────────── */
  --sh-2:0 12px 32px -12px rgba(0,0,0,.7);
  --sh-3:0 28px 60px -24px rgba(0,0,0,.85);
  --fast:.18s ease;
  --mid:.3s cubic-bezier(.22,.61,.36,1);
  --ease:cubic-bezier(.22,.61,.36,1);

  --ff:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --ff-serif:"Instrument Serif",Georgia,serif;
}

/* ── Reset ───────────────────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text-2);
  font-family:var(--ff);font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
figure{margin:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
p{margin:0 0 1em;text-wrap:pretty}
ul{margin:0;padding:0;list-style:none}
strong{color:var(--text);font-weight:600}
[hidden]{display:none !important}
::selection{background:var(--accent);color:var(--ink)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

.skip-link{position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--accent);color:var(--ink);padding:12px 18px;font-weight:600}
.skip-link:focus{left:12px;top:12px}

/* Grano sutil, como en la web de bienvenida */
.grain{
  position:fixed;inset:0;z-index:60;pointer-events:none;opacity:.028;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ── Tipografía ──────────────────────────────────────────────────────────── */
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:600;
  letter-spacing:-.025em;line-height:1.15;text-wrap:balance}
h1{font-size:clamp(34px,7.4vw,72px);line-height:1.02;letter-spacing:-.038em}
h2{font-size:clamp(27px,3.6vw,40px);line-height:1.1;letter-spacing:-.032em}
h3{font-size:19px;letter-spacing:-.015em}

.lead{color:var(--text-2);font-size:clamp(16px,1.6vw,18px);line-height:1.72}
.accent{color:var(--accent)}
.serif{font-family:var(--ff-serif);font-style:italic;font-weight:400}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:11px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;
  color:var(--accent-2);margin:0 0 18px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor;opacity:.6;flex:none}

/* ── Layout ──────────────────────────────────────────────────────────────── */
.wrap{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter)}
.wrap--narrow{max-width:760px}

section[id]{scroll-margin-top:calc(var(--header-h) + 8px)}
.section{padding-block:var(--sect);position:relative}
.section--soft{background:var(--bg-2);border-block:1px solid var(--line)}

.section-head{margin-bottom:clamp(34px,4.5vw,54px);max-width:660px}
.section-head--center{margin-inline:auto;text-align:center}
.section-head--center .eyebrow{justify-content:center}
.section-head--center .lead{margin-inline:auto}

/* ── Botones ─────────────────────────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:50px;padding:0 22px;border-radius:var(--r-sm);
  border:1px solid var(--line-2);
  font-size:14.5px;font-weight:600;letter-spacing:-.005em;
  color:var(--text);background:rgba(255,255,255,.03);
  cursor:pointer;text-align:center;
  transition:background var(--fast),border-color var(--fast),color var(--fast),
             transform var(--fast),box-shadow var(--fast);
}
.btn:hover{background:rgba(255,255,255,.07);border-color:var(--line-3)}
.btn:active{transform:translateY(1px)}
.btn .ico{transition:transform var(--mid);width:17px;height:17px;flex:none}
.btn:hover .ico--arrow{transform:translateX(3px)}

.btn--primary{
  background:var(--accent);border-color:var(--accent);color:var(--ink);
  box-shadow:0 8px 26px -12px rgba(255,90,0,.85);
}
.btn--primary:hover{background:#ff6a1a;border-color:#ff6a1a;color:var(--ink);
  box-shadow:0 12px 34px -12px rgba(255,90,0,.95);transform:translateY(-1px)}
.btn--primary:active{transform:translateY(0)}

.btn--ghost{background:transparent;border-color:var(--line-2)}
.btn--ghost:hover{border-color:var(--accent-45);color:var(--accent-2);background:var(--accent-08)}

.btn--sm{min-height:42px;padding:0 16px;font-size:13.5px;border-radius:10px}
.btn--wide{width:100%;max-width:400px}

/* ── Cabecera ────────────────────────────────────────────────────────────── */
.site-header{
  position:sticky;top:0;z-index:70;height:var(--header-h);
  background:rgba(10,9,8,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:border-color var(--mid),background var(--mid);
}
.site-header.is-stuck{border-bottom-color:var(--line);background:rgba(10,9,8,.92)}
.site-header__inner{display:flex;align-items:center;gap:22px;height:100%}
.logo img{height:34px;width:auto}
.nav-links{display:none;margin-left:auto;gap:26px;font-size:14.5px;font-weight:500;color:var(--text-2)}
.nav-links a{transition:color var(--fast)}
.nav-links a:hover{color:var(--text)}
.site-header .btn{margin-left:auto}
.nav-links + .btn{margin-left:0}
@media (min-width:900px){ .nav-links{display:flex} }

/* ── Portada ─────────────────────────────────────────────────────────────── */
.hero{position:relative;overflow:hidden;padding-block:clamp(28px,5vw,64px) clamp(48px,7vw,90px)}
.hero::before{
  content:"";position:absolute;inset:-40% -20% auto -20%;height:130%;pointer-events:none;
  background:
    radial-gradient(58% 46% at 50% 2%, var(--accent-22), transparent 66%),
    radial-gradient(40% 38% at 86% 30%, var(--accent-08), transparent 62%);
}
.hero__grid{position:relative;display:grid;gap:0;text-align:center;justify-items:center}

/* Titular grande, en mayúsculas, con revelado al abrir */
.titular{
  margin:0 0 .1em;
  font-size:clamp(34px,11vw,62px);
  line-height:.94;letter-spacing:-.045em;font-weight:800;
  text-transform:uppercase;text-wrap:balance;
}
.linea{display:block;overflow:hidden;padding-bottom:.055em}
.linea > span{display:block;transform:translateY(115%);animation:subir .95s cubic-bezier(.16,.84,.44,1) both}
.linea:nth-child(1) > span{animation-delay:.12s}
.linea:nth-child(2) > span{animation-delay:.30s}
@keyframes subir{to{transform:none}}

/* Entrada escalonada del resto de la portada */
.entra{opacity:0;animation:entrar .85s var(--ease) both;animation-delay:var(--d,0s)}
@keyframes entrar{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

.pill{
  display:inline-flex;align-items:center;gap:9px;
  background:var(--surface);border:1px solid var(--line-2);
  border-radius:999px;padding:8px 17px;margin:0 0 22px;
  font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--text);
}

/* Foto de Álvaro */
.foto{position:relative;width:100%;max-width:300px;margin:clamp(16px,3vw,26px) 0 clamp(18px,3vw,28px)}
.foto::before{
  content:"";position:absolute;inset:8% -12% -6% -12%;z-index:0;pointer-events:none;
  background:radial-gradient(50% 50% at 50% 55%, var(--accent-22), transparent 70%);
  filter:blur(6px);
}
.foto img,.foto .ph{
  position:relative;z-index:1;width:100%;aspect-ratio:4/5;object-fit:cover;object-position:50% 22%;
  border-radius:var(--r-xl);
  -webkit-mask-image:linear-gradient(180deg,#000 0%,#000 66%,transparent 100%);
  mask-image:linear-gradient(180deg,#000 0%,#000 66%,transparent 100%);
}
.foto .ph{position:relative;inset:auto;aspect-ratio:4/5}

.hero__sub{max-width:56ch;margin:0 auto 26px}

.checks{display:grid;gap:13px;max-width:520px;margin:0 auto 30px;text-align:left}
.checks li{display:flex;align-items:flex-start;gap:12px;font-size:15px;color:var(--text-2)}
.checks svg{width:20px;height:20px;flex:none;margin-top:3px;color:var(--accent)}
.checks b{color:var(--text);font-weight:600}

.hero__cta{width:100%;display:flex;justify-content:center}
.hero__note{margin:16px 0 0;font-size:11px;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;color:var(--text-3)}

/* En pantallas anchas: el titular ocupa todo el ancho (así puede ser
   mucho más grande) y la foto acompaña al texto de apoyo. */
@media (min-width:900px){
  .hero__grid{
    grid-template-columns:1.04fr .96fr;
    column-gap:clamp(36px,5vw,72px);
    text-align:left;justify-items:start;align-items:start;
    grid-template-areas:
      "chapa  chapa"
      "titulo titulo"
      "sub    foto"
      "checks foto"
      "cta    foto"
      "nota   foto"
      ".      foto";
    /* la última fila se queda el espacio sobrante, para que el texto no
       se separe al ser la foto más alta que la columna de la izquierda */
    grid-template-rows:auto auto auto auto auto auto 1fr;
  }
  .titular{font-size:clamp(58px,7.4vw,104px);margin-bottom:.22em}
  .hero__grid > .pill{grid-area:chapa}
  .hero__grid > .titular{grid-area:titulo}
  .hero__grid > .foto{
    grid-area:foto;max-width:380px;margin:0;justify-self:end;align-self:start;
  }
  .foto img,.foto .ph{aspect-ratio:3/4}
  .hero__grid > .hero__sub{grid-area:sub;margin-inline:0}
  .hero__grid > .checks{grid-area:checks;margin-inline:0}
  .hero__grid > .hero__cta{grid-area:cta;justify-content:flex-start}
  .hero__grid > .hero__note{grid-area:nota}
  .btn--wide{width:auto;max-width:none}
}

/* ── Datos ───────────────────────────────────────────────────────────────── */
.stats{background:var(--bg-2);border-block:1px solid var(--line)}
.stats__grid{display:grid;grid-template-columns:repeat(3,1fr)}
.stats__grid li{padding:clamp(26px,4vw,38px) 6px;text-align:center;border-right:1px solid var(--line)}
.stats__grid li:last-child{border-right:0}
.stats__v{display:block;font-size:clamp(30px,5vw,44px);font-weight:600;
  letter-spacing:-.04em;color:var(--accent);line-height:1}
.stats__l{display:block;margin-top:.6em;color:var(--text-3);
  font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;line-height:1.45}

/* ── Filtros ─────────────────────────────────────────────────────────────── */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:clamp(24px,3vw,34px)}
.filter{
  background:rgba(255,255,255,.03);border:1px solid var(--line-2);color:var(--text-2);
  min-height:42px;padding:0 18px;border-radius:10px;
  font-size:13.5px;font-weight:600;cursor:pointer;transition:all var(--fast);
}
.filter:hover{border-color:var(--line-3);color:var(--text)}
.filter.is-active{background:var(--accent-14);border-color:var(--accent-45);color:var(--accent-2)}

/* ── Los cambios ─────────────────────────────────────────────────────────── */
.grid{display:grid;gap:clamp(16px,2.4vw,26px);grid-template-columns:1fr}
@media (min-width:720px){ .grid{grid-template-columns:repeat(2,1fr)} }
.grid__empty{color:var(--text-3);text-align:center;padding:46px 0}

.card{
  display:flex;flex-direction:column;width:100%;padding:0;text-align:left;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;cursor:pointer;
  transition:transform var(--mid),box-shadow var(--mid),border-color var(--mid);
  animation:pop .45s var(--ease) both;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--sh-3)}
@keyframes pop{from{opacity:0;transform:translateY(14px) scale(.99)}}

.pair{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line-2)}
.shot{position:relative;aspect-ratio:3/4;background:var(--surface-2);overflow:hidden}
.shot img{width:100%;height:100%;object-fit:cover}
.shot__tag{
  position:absolute;top:10px;z-index:2;
  background:rgba(10,9,8,.78);backdrop-filter:blur(6px);color:var(--text-2);
  font-size:10px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  padding:5px 10px;border-radius:7px;border:1px solid var(--line-2);
}
.shot--before .shot__tag{left:10px}
.shot--after .shot__tag{right:10px;background:var(--accent);color:var(--ink);border-color:var(--accent)}

/* Chapa central con la medida */
.medida{
  position:absolute;left:50%;bottom:14px;transform:translateX(-50%);z-index:3;
  display:flex;border-radius:9px;overflow:hidden;white-space:nowrap;
  max-width:calc(100% - 20px);box-shadow:0 10px 26px -8px rgba(0,0,0,.9);
}
.medida span{padding:7px 13px;font-size:13px;font-weight:600;letter-spacing:-.01em;line-height:1.25}
.medida .m-a{background:rgba(10,9,8,.92);color:var(--text);border:1px solid var(--line-2);border-right:0}
.medida .m-b{background:var(--accent);color:var(--ink)}
.medida--solo span{background:var(--accent);color:var(--ink);padding:8px 16px}

.card__body{display:flex;flex-direction:column;flex:1;padding:19px 20px 21px}
.card__name{font-size:19px;font-weight:600;letter-spacing:-.02em;color:var(--text);margin-bottom:2px}
.card__meta{color:var(--accent-2);font-size:11px;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;margin-bottom:.9em}
.card__meta i{font-style:normal;color:var(--text-3)}
.card__sum{color:var(--text-2);font-size:15px;margin-bottom:1em}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-3);
  font-size:11px;font-weight:500;padding:5px 10px;border-radius:7px}
.card__more{display:inline-flex;align-items:center;gap:7px;margin-top:auto;padding-top:15px;
  color:var(--accent-2);font-size:13.5px;font-weight:600}
.card__more span{transition:transform var(--fast)}
.card:hover .card__more span{transform:translateX(4px)}

/* Marcador de foto pendiente */
.ph{
  position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:9px;padding:14px;text-align:center;
  background:repeating-linear-gradient(45deg,rgba(255,255,255,.022) 0 10px,transparent 10px 20px),var(--surface-2);
}
.ph svg{width:26px;height:26px;color:var(--text-3);opacity:.5}
.ph b{font-size:12px;color:var(--text-3);font-weight:600}
.ph code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:10px;
  color:var(--text-3);opacity:.8;word-break:break-all;line-height:1.45}

/* ── Cita ────────────────────────────────────────────────────────────────── */
.quote{
  max-width:820px;border-left:2px solid var(--accent);padding:2px 0 2px 22px;
  font-size:clamp(17px,2.1vw,21px);line-height:1.55;color:var(--text);
  margin-bottom:clamp(30px,4vw,44px);
}

/* ── Bloque partido ──────────────────────────────────────────────────────── */
.split{display:grid;gap:clamp(30px,4.5vw,58px);align-items:center}
@media (min-width:900px){ .split{grid-template-columns:1.05fr .95fr} }
.checklist{display:grid;gap:9px}
.checklist li{display:flex;align-items:flex-start;gap:14px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:15px 18px;color:var(--text-2);font-size:15px}
.checklist span{font-weight:600;color:var(--accent);flex:none;font-size:13px;padding-top:2px}

/* ── Mitos ───────────────────────────────────────────────────────────────── */
.myths{display:grid;gap:12px;max-width:860px;margin:0 0 clamp(38px,5vw,58px)}
.myth{display:flex;gap:16px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:20px 22px}
.myth__n{flex:none;width:32px;height:32px;border-radius:9px;
  background:var(--accent-14);color:var(--accent-2);border:1px solid var(--accent-22);
  font-size:14px;font-weight:600;display:grid;place-items:center}
.myth p{margin:0;font-size:15px}
.myth p + p{margin-top:.55em;color:var(--text-3)}
.myth b{color:var(--text);font-weight:600}

/* ── Pilares ─────────────────────────────────────────────────────────────── */
.pillars{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.pillar{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;transition:transform var(--mid),border-color var(--mid)}
.pillar:hover{transform:translateY(-3px);border-color:var(--line-2)}
.pillar__ico{width:42px;height:42px;border-radius:12px;background:var(--accent-14);
  border:1px solid var(--accent-22);color:var(--accent-2);display:grid;place-items:center;margin-bottom:17px}
.pillar__ico svg{width:21px;height:21px}
.pillar h3{margin-bottom:.6em}
.pillar p{color:var(--text-2);font-size:15px;margin:0}

/* ── Garantía ────────────────────────────────────────────────────────────── */
.guarantee{
  position:relative;overflow:hidden;text-align:center;
  background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-xl);
  padding:clamp(32px,5vw,62px);max-width:820px;margin-inline:auto;
}
.guarantee::before{content:"";position:absolute;inset:auto -20% -70% -20%;height:150%;
  background:radial-gradient(50% 50% at 50% 85%,var(--accent-22),transparent 62%);pointer-events:none}
.guarantee > *{position:relative;z-index:1}
.guarantee .eyebrow{justify-content:center}
.guarantee h2{margin-bottom:.5em}
.guarantee__lead{font-size:clamp(17px,2vw,20px);max-width:58ch;margin-inline:auto;color:var(--text-2)}
.guarantee__small{color:var(--text-3);font-size:15px;max-width:56ch;margin-inline:auto;margin-bottom:0}

/* ── Vídeos (preparado para el futuro) ───────────────────────────────────── */
.videos{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.video__frame{position:relative;aspect-ratio:9/16;border-radius:var(--r-lg);
  overflow:hidden;background:var(--surface);border:1px solid var(--line)}
.video__frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video figcaption{margin-top:12px;color:var(--text-2);font-size:15px;font-weight:600}

/* ── Dudas ───────────────────────────────────────────────────────────────── */
.faq{display:grid;gap:9px}
.faq__item{background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;transition:border-color var(--fast)}
.faq__item[open]{border-color:var(--line-2)}
.faq__item summary{cursor:pointer;list-style:none;padding:19px 54px 19px 21px;position:relative;
  font-weight:600;color:var(--text);font-size:16px;letter-spacing:-.018em}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{content:"";position:absolute;right:22px;top:50%;
  width:11px;height:11px;margin-top:-6px;
  border-right:1.5px solid var(--accent);border-bottom:1.5px solid var(--accent);
  transform:rotate(45deg);transition:transform var(--mid)}
.faq__item[open] summary::after{transform:rotate(225deg);margin-top:-2px}
.faq__item p{padding:0 21px 21px;margin:0;color:var(--text-2);font-size:15px}

/* ── CTA final ───────────────────────────────────────────────────────────── */
.cta{position:relative;overflow:hidden;text-align:center;
  padding-block:var(--sect);border-top:1px solid var(--line)}
.cta::before{content:"";position:absolute;inset:auto -20% -60% -20%;height:140%;
  background:radial-gradient(50% 50% at 50% 82%,var(--accent-22),transparent 66%);pointer-events:none}
.cta__inner{position:relative}
.cta .eyebrow{justify-content:center}
.cta h2{margin-bottom:.45em}
.cta__sub{max-width:50ch;margin-inline:auto;margin-bottom:2rem}
.cta__small{margin:1.2rem 0 0;color:var(--text-3);font-size:13px}

/* ── Pie ─────────────────────────────────────────────────────────────────── */
.foot{background:var(--bg-2);border-top:1px solid var(--line);padding-block:46px 30px}
.foot__inner{display:flex;flex-wrap:wrap;gap:26px;justify-content:space-between;
  align-items:flex-start;padding-bottom:28px;border-bottom:1px solid var(--line);margin-bottom:22px}
.foot__tag{color:var(--text-3);font-size:14px;margin:14px 0 0}
.foot__links{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:14.5px;color:var(--text-2)}
.foot__links a:hover{color:var(--accent-2)}
.foot__legal{color:var(--text-3);font-size:12px;line-height:1.65;max-width:80ch}
.foot__copy{color:var(--text-3);font-size:12px;margin:0}

/* ── Ficha ampliada ──────────────────────────────────────────────────────── */
.lb{position:fixed;inset:0;z-index:150;display:grid;place-items:center;padding:16px}
.lb__backdrop{position:absolute;inset:0;background:rgba(6,5,5,.86);backdrop-filter:blur(6px)}
.lb__panel{position:relative;z-index:2;width:min(720px,100%);max-height:92vh;overflow-y:auto;
  background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r-xl);
  box-shadow:var(--sh-3);animation:lbIn .3s var(--ease) both}
@keyframes lbIn{from{opacity:0;transform:translateY(18px) scale(.97)}}
.lb__close{position:absolute;top:13px;right:13px;z-index:4;width:38px;height:38px;
  border-radius:50%;background:rgba(10,9,8,.8);border:1px solid var(--line-2);
  color:var(--text);font-size:1.4rem;line-height:1;cursor:pointer;display:grid;place-items:center;
  transition:background var(--fast)}
.lb__close:hover{background:var(--surface-2)}
.lb__media .pair{border-radius:var(--r-xl) var(--r-xl) 0 0;overflow:hidden}
.lb__media .shot{aspect-ratio:3/4;max-height:min(54vh,520px)}
.lb__body{padding:clamp(22px,3.5vw,32px)}
.lb__titular{display:inline-block;background:var(--accent);color:var(--ink);font-weight:600;
  font-size:13px;padding:6px 14px;border-radius:8px;margin:0 0 1em}
.lb__name{font-size:clamp(24px,3.5vw,32px);letter-spacing:-.032em;margin-bottom:.15em}
.lb__meta{color:var(--accent-2);font-size:11px;font-weight:600;letter-spacing:.16em;
  text-transform:uppercase;margin-bottom:1.3em}
.lb__story{color:var(--text-2);margin-bottom:1.7em}
body.lb-open{overflow:hidden}

/* ── Botón flotante de WhatsApp ──────────────────────────────────────────── */
/* Siempre visible, con dos ondas que laten para que llame la atención
   sin ser un parpadeo agresivo. */
.wa{
  position:fixed;right:18px;z-index:80;
  bottom:calc(18px + env(safe-area-inset-bottom));
  width:60px;height:60px;display:grid;place-items:center;
}
.wa__nucleo{
  position:relative;z-index:2;width:60px;height:60px;border-radius:50%;
  display:grid;place-items:center;
  background:linear-gradient(145deg,var(--accent-2) 0%,var(--accent) 55%,#d94e00 100%);
  box-shadow:0 10px 30px -8px rgba(255,90,0,.7),
             0 2px 10px rgba(0,0,0,.6),
             inset 0 1px 0 rgba(255,255,255,.28);
  animation:latir 2.8s ease-in-out infinite;
  transition:transform var(--mid),box-shadow var(--mid);
}
.wa__nucleo svg{width:29px;height:29px;fill:#fff;filter:drop-shadow(0 1px 2px rgba(0,0,0,.35))}

.wa__onda{
  position:absolute;inset:0;z-index:1;border-radius:50%;
  border:2px solid var(--accent);
  animation:onda 2.8s cubic-bezier(.22,.61,.36,1) infinite;
}
.wa__onda--2{animation-delay:1.4s}

@keyframes onda{
  0%   {transform:scale(1);   opacity:.55}
  70%  {transform:scale(1.85);opacity:0}
  100% {transform:scale(1.85);opacity:0}
}
@keyframes latir{
  0%,100% {transform:scale(1)}
  50%     {transform:scale(1.06)}
}

/* Etiqueta que asoma al pasar el ratón */
.wa__globo{
  position:absolute;right:72px;top:50%;transform:translate(8px,-50%);
  z-index:2;white-space:nowrap;
  background:var(--surface);border:1px solid var(--line-2);color:var(--text);
  font-size:13.5px;font-weight:600;padding:9px 15px;border-radius:10px;
  box-shadow:var(--sh-2);opacity:0;pointer-events:none;
  transition:opacity var(--mid),transform var(--mid);
}
.wa__globo::after{
  content:"";position:absolute;right:-5px;top:50%;margin-top:-5px;
  width:9px;height:9px;background:var(--surface);
  border-right:1px solid var(--line-2);border-top:1px solid var(--line-2);
  transform:rotate(45deg);
}
.wa:hover .wa__globo,.wa:focus-visible .wa__globo{opacity:1;transform:translate(0,-50%)}
.wa:hover .wa__nucleo{transform:scale(1.08);animation-play-state:paused;
  box-shadow:0 14px 38px -8px rgba(255,90,0,.85),0 2px 10px rgba(0,0,0,.6)}

@media (max-width:520px){
  .wa{right:14px;bottom:calc(14px + env(safe-area-inset-bottom));width:56px;height:56px}
  .wa__nucleo{width:56px;height:56px}
  .wa__nucleo svg{width:27px;height:27px}
  .wa__globo{display:none}
}

/* ── Revelado ────────────────────────────────────────────────────────────── */
.reveal{opacity:0;transform:translateY(18px);
  transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
  .entra{opacity:1;animation:none}
  .linea > span{transform:none;animation:none}
  .wa__onda{display:none}
  .wa__nucleo{animation:none}
}