/* ==========================================================================
   /pensar/ · piel "Glass de acento" (sistema v2 de uxjosearroyo.com)
   Se carga DESPUÉS de styles.css: solo cambia la apariencia.
   No toca textos, precios, pago (.js-checkout, .js-precio) ni analítica.
   Revertir: quitar el <link> a glass.css en index.html.
   ========================================================================== */
:root{
  --bg:#1C0442;--bg2:#2A1058;--bg3:#3A1A72;
  --red:#FF0037;--red-soft:rgba(255,0,55,.16);--accent-ink:#1C0442;
  --ink:#FFFFFF;--sup:rgba(255,255,255,.80);--sec:rgba(255,255,255,.64);
  --hl:rgba(255,255,255,.12);--hl2:rgba(255,255,255,.22);
  --card:rgba(255,255,255,.065);--card-2:rgba(255,255,255,.09);
  --glass-dark:rgba(28,4,66,.58);--blur:blur(20px) saturate(150%);
  --shine:inset 0 1px 0 rgba(255,255,255,.12);--shadow:0 18px 40px -18px rgba(8,0,24,.55);
  --r:20px;--max:1180px;
  --sans:"Source Sans 3","Source Sans Pro",system-ui,-apple-system,"Segoe UI",sans-serif;
  --display:"Montserrat",system-ui,-apple-system,"Segoe UI",sans-serif;
  --serif:"Source Serif 4",Georgia,serif;
}

/* Campos de color fijos al viewport (lo que el vidrio deja ver) */
html{background:var(--bg)}
body{background:transparent;font-family:var(--sans);font-size:17px;line-height:1.62;color:var(--sup);position:relative}
body::before,body::after{content:"";position:fixed;pointer-events:none;z-index:0;inset:auto}
body::before{top:-18vh;right:-12vw;width:70vw;height:80vh;
  background:radial-gradient(closest-side,rgba(110,40,200,.55),rgba(110,40,200,0)),
             radial-gradient(closest-side at 30% 80%,rgba(58,43,196,.35),rgba(58,43,196,0))}
body::after{bottom:-22vh;left:-16vw;width:62vw;height:70vh;
  background:radial-gradient(closest-side,rgba(255,0,55,.26),rgba(255,0,55,0))}
main,footer{position:relative;z-index:1}

/* Tipografía */
h1,h2,h3{font-family:var(--display);text-wrap:balance;letter-spacing:-.015em}
em.r{font-family:var(--serif);font-weight:400;color:var(--red)}
p{color:var(--sup)}
.hero h1{font-size:clamp(2.15rem,5vw,3.5rem);line-height:1.08;letter-spacing:-.022em;font-weight:800}
.h2{font-size:clamp(1.6rem,3.4vw,2.4rem);line-height:1.15;font-weight:700}
.lede{font-size:1.06rem}

/* Eyebrow: chip de vidrio */
.kicker{font-family:var(--display);font-size:11.5px;font-weight:700;letter-spacing:.2em;color:var(--sup);
  background:var(--card);border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:7px 14px;box-shadow:var(--shine)}
.kicker::before{width:6px;height:6px}

/* Ritmo */
section{padding:clamp(64px,7vw,96px) 0}
.hero{padding:48px 0 56px}
@media(min-width:920px){.hero{padding:64px 0 80px}}

/* Botones: texto oscuro sobre rojo (contraste AA 4.63:1) */
.btn{font-family:var(--display);font-size:15px;padding:15px 26px;min-height:44px;color:var(--accent-ink);
  box-shadow:0 10px 28px -12px rgba(255,0,55,.6),inset 0 1px 0 rgba(255,255,255,.25);transition:opacity .18s,background .18s,border-color .18s}
.btn:hover{transform:none;opacity:.92;box-shadow:0 10px 28px -12px rgba(255,0,55,.6),inset 0 1px 0 rgba(255,255,255,.25)}
.btn.ghost{background:var(--card);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);color:var(--ink);
  border:1px solid var(--hl2);font-weight:600;box-shadow:var(--shine)}
.btn.ghost:hover{background:var(--card-2);border-color:rgba(255,255,255,.34);opacity:1}
.btn .js-precio{color:inherit}

/* Header flotante en píldora de vidrio */
.top{background:transparent;border-bottom:0;-webkit-backdrop-filter:none;backdrop-filter:none;padding:12px 16px 0}
.top .wrap{height:60px;max-width:var(--max);padding:0 8px 0 20px;border-radius:999px;background:var(--glass-dark);
  -webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);border:1px solid rgba(255,255,255,.16);
  box-shadow:var(--shine),0 12px 30px -16px rgba(8,0,24,.7)}
.top img{height:30px;width:auto;flex-shrink:0}
.top .btn{padding:10px 18px;min-height:40px;font-size:.86rem;box-shadow:none}
@media(max-width:480px){.top .wrap{padding:0 6px 0 14px;gap:10px}.top img{height:24px}.top .btn{padding:9px 14px;font-size:.78rem}}

/* Precio */
.price-inline b{font-family:var(--display)}
.price-inline span{color:var(--ink);background:var(--red-soft);border-color:rgba(255,0,55,.45);border-radius:999px;padding:5px 12px}

/* Visual del hero en marco de vidrio */
.hero figure{padding:12px;border-radius:28px;background:var(--card);-webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);
  border:1px solid rgba(255,255,255,.2);box-shadow:var(--shine),var(--shadow)}
.hero figure img{border-radius:18px;box-shadow:none}
.hero figure::after{content:none}

/* Tarjetas de vidrio */
.quote,.phase,.items,.fitcard,.faq details{background:var(--card);border:1px solid rgba(255,255,255,.16);box-shadow:var(--shine)}
.quote{border-radius:var(--r)}
.quote::before{font-family:var(--serif)}
.phase{border-radius:var(--r)}
.phase .n{font-family:var(--display);-webkit-text-stroke:1.3px var(--red)}
.phase.ia{background:linear-gradient(160deg,rgba(255,0,55,.10),rgba(255,255,255,.04));border-color:rgba(255,0,55,.42)}
.diamonds polygon:last-of-type{stroke:#FF0037;fill:rgba(255,0,55,.10)}
.diamonds text{font-family:Montserrat,sans-serif}
.items{border-radius:24px;-webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur)}
.item{border-bottom-color:var(--hl)}
.item .tag{color:#FF5C7A}
.total{background:rgba(255,0,55,.10);border-top-color:rgba(255,0,55,.40)}
.total b,.price-inline b,.mbar b{font-family:var(--display)}
.previews img{border-color:rgba(255,255,255,.2)}
.fitcard{border-radius:var(--r)}
.fitcard.yes li::before{border-color:#FF0037}

/* Autor */
.author .photo{padding:12px;border-radius:28px;background:var(--card);border:1px solid rgba(255,255,255,.2);box-shadow:var(--shine),var(--shadow);max-width:444px}
.author .photo img{border-radius:18px;max-width:100%;object-position:center top}
.tl span{color:#FF5C7A}

/* Garantía */
.guarantee{background:var(--card);-webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);
  border:1px solid rgba(255,255,255,.2);border-radius:26px;box-shadow:var(--shine),var(--shadow)}
.seal{border-color:var(--red);background:rgba(255,0,55,.08);font-family:var(--display)}

/* FAQ en tarjetas */
.faq{display:grid;gap:10px}
.faq details,.faq details:first-of-type{border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:0 20px}
.faq summary{font-family:var(--display);font-size:1rem;padding:18px 36px 18px 0}
.faq details div{padding:0 0 18px}

/* CTA final en vidrio */
.final .wrap{max-width:860px;padding:48px 24px;border-radius:28px;background:var(--card);-webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);
  border:1px solid rgba(255,255,255,.2);box-shadow:var(--shine),var(--shadow)}
@media(max-width:600px){.final .wrap{margin:0 16px;padding:36px 20px}}

/* Footer y barra móvil */
footer{border-top-color:rgba(255,255,255,.09);background:rgba(14,2,34,.35);color:var(--sec)}
footer a{color:var(--sup)}
.mbar{background:var(--glass-dark);-webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);border-top:1px solid rgba(255,255,255,.16)}

/* Accesibilidad */
a:focus-visible,.btn:focus-visible,summary:focus-visible{outline:2px solid rgba(255,255,255,.8);outline-offset:3px}
@media (prefers-reduced-transparency:reduce){
  body::before,body::after{display:none}
  .top .wrap,.hero figure,.items,.guarantee,.final .wrap,.mbar,.btn.ghost{-webkit-backdrop-filter:none;backdrop-filter:none;background:#2A1058}
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .top .wrap,.mbar{background:rgba(28,4,66,.96)}
}