/*
Versión: 0.26.0829.3
Fecha: 2026-08-29
Cambio:
- Se normalizan las tarjetas editoriales y se estiliza el visor interno de muestras PDF.
*/
:root{--paper:#efe4cf;--paper-deep:#e4d4b9;--ink:#2d2926;--muted:#62594d;--bronze:#8f6d3b;--line:#cfbfa4;--card:rgba(255,251,242,.48)}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:radial-gradient(circle at 70% 0,#fff8e9 0,transparent 29rem),var(--paper);font-family:Georgia,'Times New Roman',serif;line-height:1.62}.site-header,main,footer{width:min(1120px,calc(100% - 40px));margin:auto}.site-header{min-height:92px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{color:var(--ink);font-size:1.55rem;letter-spacing:.02em;text-decoration:none}.brand span{color:var(--bronze)}.brand small{display:block;font-size:.56rem;letter-spacing:.3em;text-transform:uppercase}.site-header nav{display:flex;gap:1.35rem}.site-header nav a,.back-link,a{color:var(--bronze)}.site-header nav a{text-decoration:none}.hero{min-height:510px;display:grid;grid-template-columns:1.5fr .7fr;gap:4rem;align-items:center;padding:4.5rem 0}.hero__logo{width:min(270px,100%);height:auto;justify-self:center}.eyebrow{margin:0 0 .55rem;color:var(--bronze);font-size:.75rem;font-weight:bold;letter-spacing:.17em;text-transform:uppercase}h1,h2,h3{font-weight:normal;line-height:1.05}h1{margin:.1rem 0 1.2rem;font-size:clamp(3rem,6vw,5.4rem)}h2{margin:.1rem 0 1rem;font-size:clamp(2.2rem,4vw,3.5rem)}h3{margin:0 0 .5rem;font-size:1.55rem}.hero__lead{max-width:660px;font-size:1.22rem;color:var(--muted)}.button{display:inline-block;margin:.4rem .35rem .4rem 0;padding:.62rem 1rem;color:#fff8ea;background:var(--bronze);border:1px solid var(--bronze);text-decoration:none;font-size:.92rem}.button--quiet{color:var(--bronze);background:transparent}.purpose,.catalog,.catalog-intro{padding:3.8rem 0;border-top:1px solid var(--line)}.principles{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-top:1.5rem}.principles article{padding:1.35rem;background:var(--card);border:1px solid var(--line)}.principles p,.catalog-intro>p{margin:0;color:var(--muted)}.section-heading{margin-bottom:1.7rem}.book-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2rem}.book-card{display:flex;flex-direction:column;min-width:0}.book-card__cover{display:block;aspect-ratio:2/3;padding:.7rem;background:var(--card);border:1px solid var(--line)}.book-card__cover img{display:block;width:100%;height:100%;object-fit:cover;box-shadow:0 9px 18px #2d292633}.cover-placeholder{display:grid;width:100%;height:100%;place-content:center;text-align:center;color:var(--bronze);background:linear-gradient(150deg,#fbf4e6,#d8c5a3);font-size:1.35rem;line-height:1.25}.book-card__body{display:flex;flex:1;flex-direction:column;padding-top:1rem}.book-card__label{margin:0 0 .4rem;color:var(--bronze);font-size:.72rem;letter-spacing:.13em;text-transform:uppercase}.book-card h3 a{color:var(--ink);text-decoration:none}.book-card__excerpt{color:var(--muted);font-size:.95rem}.book-card__author{margin-top:auto;font-size:.9rem}.text-link{font-size:.92rem;text-underline-offset:.25em}.book-page{padding:2.6rem 0 4.5rem}.book-detail{display:grid;grid-template-columns:minmax(230px,360px) minmax(0,1fr);gap:clamp(2rem,5vw,5rem);margin-top:2rem}.book-detail__cover{padding:.9rem;background:var(--card);border:1px solid var(--line);align-self:start}.book-detail__cover img{display:block;width:100%;height:auto;box-shadow:0 10px 22px #2d292633}.book-detail h1{font-size:clamp(2.5rem,5vw,4.5rem)}.book-detail__excerpt{font-size:1.2rem;color:var(--muted)}.buy-options{margin-top:1.7rem;padding-top:1.2rem;border-top:1px solid var(--line)}footer{padding:2.4rem 0 3.2rem;border-top:1px solid var(--line);color:var(--muted)}footer strong{color:var(--ink);font-size:1.25rem}footer p{margin:.15rem 0}@media(max-width:800px){.hero{grid-template-columns:1fr;gap:2rem;min-height:0}.hero__logo{width:190px;justify-self:start}.book-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.principles{grid-template-columns:repeat(2,1fr)}.book-detail{grid-template-columns:1fr}.book-detail__cover{max-width:360px}}@media(max-width:520px){.site-header,main,footer{width:min(100% - 28px,1120px)}.site-header{min-height:80px}.book-grid,.principles{grid-template-columns:1fr}.site-header nav{gap:.8rem}h1{font-size:3rem}.hero{padding:3.2rem 0}}
/* Visor PDF y retícula uniforme. */
.book-grid{align-items:stretch}.book-card{min-height:100%;display:flex}.book-card__cover{aspect-ratio:2/3}.book-card__cover img{object-fit:contain!important}.book-card__body{min-height:15.6rem}.book-card h3{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;min-height:3.25rem}.book-card__excerpt{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden;min-height:4.6rem}.book-card__author{min-height:1.6rem}.book-card .text-link{margin-top:auto}.pdf-viewer{width:min(95vw,1200px);height:92dvh;max-height:92vh;padding:0;border:1px solid var(--line);background:var(--paper);color:var(--ink)}.pdf-viewer::backdrop{background:rgba(23,20,16,.78)}.pdf-viewer__bar{height:3.5rem;display:flex;align-items:center;justify-content:space-between;padding:0 1rem;border-bottom:1px solid var(--line);background:var(--paper-deep)}.pdf-viewer__bar p{margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.pdf-viewer__bar button{border:0;background:transparent;color:var(--ink);font:inherit;cursor:pointer}.pdf-viewer iframe{display:block;width:100%;height:calc(100% - 3.5rem - 2rem);border:0;background:#fff}.pdf-viewer__download{display:block;height:2rem;padding:.25rem 1rem;text-align:right;font-size:.85rem}.has-pdf-viewer{overflow:hidden}@media(max-width:520px){.pdf-viewer{width:100vw;height:100dvh;max-height:none;border:0}.pdf-viewer__bar{padding-top:env(safe-area-inset-top);height:calc(3.5rem + env(safe-area-inset-top))}.pdf-viewer iframe{height:calc(100% - 3.5rem - env(safe-area-inset-top) - 2rem)}}