/* Libro — Antes de las palabras */
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.lb-hp{position:absolute!important;left:-9999px!important;height:0;overflow:hidden}
.lb-narrow{max-width:760px}

/* Landing */
.lb-hero{padding:clamp(40px,7vw,96px) 0 clamp(56px,8vw,110px);background:radial-gradient(ellipse at 20% 30%,rgba(201,154,59,.10),transparent 60%),var(--ink)}
.lb-hero-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(32px,6vw,80px);align-items:center}
.lb-cover{margin:0;justify-self:center;max-width:420px;width:100%}
.lb-cover img{width:100%;height:auto;display:block;border-radius:4px;box-shadow:0 30px 60px -20px rgba(0,0,0,.8),0 0 0 1px rgba(243,238,229,.06)}
.lb-hero-copy h1{margin-bottom:.15em}
.lb-sub{font-family:var(--serif);font-style:italic;font-size:clamp(1.2rem,2.2vw,1.55rem);color:var(--gold-2);margin:0 0 1.4em}
.lb-quote{margin:0 0 1.6em;padding-left:1.1em;border-left:2px solid var(--gold);font-family:var(--serif);font-size:1.18rem;line-height:1.5;color:var(--on-dark)}
.lb-facts{list-style:none;padding:0;margin:0 0 2em;color:var(--on-dark-soft);font-size:.95rem}
.lb-facts li{padding:.2em 0 .2em 1.3em;position:relative}
.lb-facts li::before{content:"";position:absolute;left:0;top:.95em;width:.6em;height:1px;background:var(--gold)}
.lb-ctas{display:flex;flex-wrap:wrap;gap:12px}
.lb-hello{font-family:var(--serif);font-size:1.25rem;margin:0 0 .8em}
.lb-signup h2,.lb-toc-wrap h2,.lb-voices h2{font-size:clamp(1.8rem,3.4vw,2.6rem)}
.lb-signup p{color:var(--text-soft)}
.lb-form{margin-top:24px;max-width:520px}
.lb-form input[type=email],.form textarea{font:inherit;padding:14px 16px;border-radius:12px;border:1px solid var(--line-dark);background:rgba(255,255,255,.04);color:var(--on-dark)}
.on-light .lb-form input[type=email],.on-light .form textarea,.lb-read .form textarea{border-color:rgba(21,27,33,.2);background:var(--white);color:var(--text)}
.lb-opt{font-weight:400;color:var(--text-soft);font-size:.85rem}
.lb-form .btn{justify-self:start}
.lb-errors{background:#fbecec;border:1px solid #e8b9b9;color:#7d2323;border-radius:12px;padding:12px 16px;margin-top:16px}
.lb-errors p{margin:.2em 0}

/* Índice */
.lb-toc{list-style:none;padding:0;margin:0}
.lb-toc-part{font-size:.74rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--gold-2);padding:28px 0 8px}
.lb-toc-item a{display:grid;grid-template-columns:96px 1fr auto;gap:12px;align-items:baseline;padding:14px 4px;border-bottom:1px solid var(--line-dark);color:var(--on-dark);text-decoration:none;transition:background .2s}
.lb-toc-item a:hover{background:rgba(243,238,229,.03)}
.lb-toc-label{font-size:.82rem;color:var(--on-dark-soft)}
.lb-toc-title{font-family:var(--serif);font-size:1.18rem;line-height:1.3}
.lb-toc-meta{font-size:.8rem;color:var(--on-dark-soft);white-space:nowrap}
.lb-toc-item.is-done .lb-toc-meta{color:var(--gold-2)}
.lb-toc-item.is-started .lb-toc-label::after{content:" ·";color:var(--gold)}
.lb-note{margin-top:28px;color:var(--on-dark-soft);font-size:.92rem;font-style:italic}
.lb-voice-list{display:grid;gap:18px}
.lb-voice{margin:0;background:var(--white);border:1px solid var(--line-light);border-radius:var(--radius-sm);padding:20px 22px}
.lb-voice blockquote{margin:0 0 .6em;font-family:var(--serif);font-size:1.12rem;line-height:1.55}
.lb-voice figcaption{font-size:.85rem;color:var(--text-soft)}

/* Lectura */
.lb-reader{background:var(--paper)}
.lb-read{background:var(--paper);color:var(--text);padding:20px 0 80px}
.lb-progress{position:fixed;left:0;right:0;top:var(--header-h);height:3px;z-index:49;pointer-events:none}
.lb-progress span{display:block;height:100%;width:0;background:var(--gold);transition:width .1s linear}
.lb-crumbs{display:flex;justify-content:space-between;font-size:.86rem;color:var(--text-soft);max-width:760px}
.lb-crumbs a{color:var(--gold-ink);text-decoration:none}
.lb-welcome{max-width:760px;margin-top:16px;background:#eef3ec;border:1px solid #cfe0cb;border-radius:12px;padding:12px 16px!important;color:#23452c;font-size:.95rem}
.lb-chapter{max-width:680px;margin:0 auto;padding:clamp(32px,6vw,72px) var(--gutter) 0}
.lb-ch-head{text-align:center;margin-bottom:clamp(36px,6vw,64px)}
.lb-ch-part{font-size:.72rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--gold-ink);margin:0 0 1.6em}
.lb-ch-num{font-family:var(--serif);font-style:italic;color:var(--text-soft);font-size:1.1rem;margin:0 0 .3em}
.lb-ch-head h1{font-size:clamp(2.1rem,5vw,3.2rem);color:var(--text)}
.lb-ch-min{font-size:.82rem;color:var(--text-soft);margin:0}
.lb-text{font-family:var(--serif);font-size:clamp(1.12rem,1.6vw,1.24rem);line-height:1.72;color:#1b2127;hyphens:auto;-webkit-hyphens:auto}
.lb-text p{margin:0;text-indent:1.4em}
.lb-text p.first,.lb-text p.sep+p{text-indent:0}
.lb-text p.first::first-letter{font-size:3.3em;float:left;line-height:.9;padding:.06em .08em 0 0;color:var(--gold-ink)}
.lb-text p.sep{text-align:center;text-indent:0;margin:1.4em 0;color:var(--gold-ink);letter-spacing:.5em}
.lb-text em{font-style:italic}
.lb-end-mark{text-align:center;color:var(--gold);margin:48px 0 0;font-size:1.1rem}
.lb-after{max-width:680px;margin:0 auto;padding:40px var(--gutter) 0}
.lb-comment,.lb-gate,.lb-final{background:var(--white);border:1px solid var(--line-light);border-radius:var(--radius);padding:clamp(22px,4vw,34px);margin-bottom:24px}
.lb-after h2{font-size:clamp(1.5rem,3vw,2rem);color:var(--text)}
.lb-after p{color:var(--text-soft)}
.lb-read .form .check{color:var(--text-soft)}
.lb-read .form label{color:var(--text)}
.lb-publish{border:0;padding:0;margin:0;display:grid;gap:8px}
.lb-publish legend{font-weight:500;font-size:.9rem;margin-bottom:6px;color:var(--text)}
.lb-read .form .btn{justify-self:start}
.lb-thanks{font-family:var(--serif);font-size:1.2rem;color:var(--text)!important;margin:0}
.lb-final .btn-ghost{border-color:rgba(21,27,33,.25);color:var(--text)}
.lb-pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:8px}
.lb-pager a{display:block;padding:16px 18px;border:1px solid var(--line-light);border-radius:var(--radius-sm);text-decoration:none;color:var(--text);font-family:var(--serif);font-size:1.02rem;line-height:1.35;background:var(--white)}
.lb-pager a:hover{border-color:var(--gold)}
.lb-pager small{display:block;font-family:var(--sans);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--gold-ink);margin-bottom:4px}
.lb-next{text-align:right;grid-column:2}
.lb-footer{padding:28px 0}

@media (max-width:820px){
  .lb-hero-grid{grid-template-columns:1fr}
  .lb-cover{max-width:250px}
  .lb-hero-copy{text-align:left}
  .lb-toc-item a{grid-template-columns:1fr auto;gap:2px 12px}
  .lb-toc-label{grid-column:1}
  .lb-toc-title{grid-column:1}
  .lb-toc-meta{grid-row:1/3;grid-column:2;align-self:center}
  .lb-pager{grid-template-columns:1fr}
  .lb-next{grid-column:1;text-align:left}
}
.lb-reader .site-header,.lb-reader .site-header.scrolled{background:var(--ink)}