:root{--c:#1f4e79;--c2:#163a5b;--g:#f4f6f8;--t:#222;--suave:#5b6b7b;--ok:#15803d;--am:#ff9900}
*{box-sizing:border-box}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Hiragino Sans","Noto Sans JP",Arial,sans-serif;margin:0;background:var(--g);color:var(--t);line-height:1.5}
.top{position:relative;background:var(--c);color:#fff;padding:22px 16px 18px;text-align:center}
.idioma{position:absolute;top:10px;right:12px;font-size:14px;color:#dfe8f1}
.idioma select{font-size:15px;padding:5px 6px;border-radius:8px;border:0;background:#fff;color:#163a5b}
.idioma select:disabled{opacity:.6}
.top h1{margin:0;font-size:clamp(22px,5vw,32px)}
.top p{margin:6px auto 0;max-width:640px;opacity:.92}
.destacado{font-size:clamp(16px,3.4vw,19px);font-weight:600;max-width:760px;margin:12px auto 0 !important;opacity:1 !important}
.vitrina{display:flex;gap:12px;justify-content:center;overflow-x:auto;padding:16px 4px 8px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.vitrina::-webkit-scrollbar{display:none}
.vitrina a{flex:0 0 auto;transition:transform .2s}
.vitrina a:hover{transform:translateY(-6px) rotate(-1deg)}
.vitrina img{height:150px;aspect-ratio:2/3;object-fit:cover;border-radius:6px;box-shadow:0 6px 16px #0006;display:block}
.top .subtit{margin-top:2px;font-size:clamp(15px,3.6vw,19px);color:#f5c542;opacity:1;font-weight:bold}

/* Pestañas: se desplazan de lado en el celular */
.pestanas{position:sticky;top:0;z-index:10;background:var(--c2);display:flex;gap:6px;overflow-x:auto;padding:8px 10px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.pestanas::-webkit-scrollbar{display:none}
.etq-pest{flex:0 0 auto;align-self:center;color:#f5c542;font-weight:bold;font-size:15px;padding:0 4px 0 2px;white-space:nowrap}
.pestanas a{flex:0 0 auto;color:#fff;text-decoration:none;padding:8px 14px;border-radius:999px;font-size:15px;white-space:nowrap;background:#ffffff1a}
.pestanas a.activa{background:#fff;color:var(--c2);font-weight:bold}
.pestanas a.col{margin-left:auto;background:#fcd116;color:#003893;font-weight:bold}
.pestanas a.col.activa{outline:3px solid #fff}

.aviso{background:#fff7d6;border-bottom:1px solid #e9d27a;padding:10px 14px;text-align:center;font-size:15px}
.aviso button{margin-left:8px}
.aviso .x{background:none;color:var(--suave);font-size:18px;padding:0 6px}

main{max-width:1000px;margin:auto;padding:16px}
h2{color:var(--c);margin:10px 0 14px}
.cargando,.vacio{text-align:center;color:var(--suave);padding:40px 0}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.card,.box{background:#fff;border-radius:12px;padding:14px;box-shadow:0 1px 4px #0002}
.card{display:flex;flex-direction:column;scroll-margin-top:70px}
.card.resalta{animation:resalta 1.6s ease}
@keyframes resalta{0%,40%{box-shadow:0 0 0 4px var(--am)}100%{box-shadow:0 1px 4px #0002}}
.portada{width:100%;aspect-ratio:2/3;object-fit:cover;border-radius:8px;background:#dde3ea;display:flex;align-items:center;justify-content:center;color:#678;font-weight:bold;text-align:center;padding:10px}
img.portada{padding:0;background:none;box-shadow:0 2px 8px #0003}
.card h3{margin:12px 0 2px;font-size:18px;line-height:1.25}
.sub{color:var(--suave);font-size:14px;margin:0 0 2px}
.autor{font-size:14px;margin:0 0 6px}
.etiquetas{display:flex;flex-wrap:wrap;gap:6px;margin:4px 0}
.etq{font-size:12px;background:#e7eef6;color:var(--c);border-radius:999px;padding:2px 9px}
.etq.nuevo{background:#fff1d6;color:#9a5b00}
.desc{font-size:14px;color:#333}
.desc p{margin:6px 0}
.desc ul{margin:4px 0;padding-left:18px}
.desc li{margin:3px 0}
.desc.corta{max-height:9.5em;overflow:hidden;-webkit-mask-image:linear-gradient(#000 60%,transparent)}
.mas{background:none;color:var(--c);padding:2px 0;font-size:14px;text-decoration:underline}
.compra{margin-top:auto;padding-top:10px}
.nota{font-size:13px;color:#9a5b00;margin:4px 0}
.btn,button{background:var(--c);color:#fff;border:0;padding:11px 16px;border-radius:8px;cursor:pointer;text-decoration:none;display:inline-block;font-size:15px;text-align:center}
.btn.amz{background:var(--am);color:#111;font-weight:bold;width:100%}
.btn.wa{background:#25d366}
.btn.grande{font-size:17px;padding:14px 22px}
.btn.gr{background:#666}
.prox{display:block;text-align:center;background:#eef1f4;color:var(--suave);border-radius:8px;padding:10px}
details{font-size:14px;margin-top:8px}
details summary{cursor:pointer;color:var(--c)}
details ul{margin:6px 0 0;padding-left:18px}
.tambien{font-size:13px;margin-top:8px;color:var(--suave)}
.tambien a{color:var(--c);margin-right:8px;white-space:nowrap}

/* Colombia */
.colombia{border-top:6px solid #fcd116}
.colombia ol{padding-left:22px}
.colombia ol li{margin:6px 0}
.acciones{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}

footer{text-align:center;color:var(--suave);font-size:13px;padding:24px 16px 40px}

@media (max-width:520px){
  main{padding:12px}
  .grid{grid-template-columns:1fr;gap:14px}
  .card .portada{max-width:230px;margin:0 auto}
  .pestanas a.col{margin-left:0}
  .idioma{position:static;display:block;margin-bottom:8px}
  .vitrina{justify-content:flex-start}
  .vitrina img{height:110px}
}

/* Selector de país y tiendas */
.cab{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;margin-bottom:12px}
.cab h2{margin:0}
.pais{background:#fff;border:2px solid var(--am);border-radius:12px;padding:12px 16px;margin:4px 0 16px;box-shadow:0 1px 4px #0002}
.pais label{font-size:18px;font-weight:bold;color:var(--c2);display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.pais select{font-size:18px;padding:9px 10px;border:2px solid var(--c);border-radius:8px;background:#fff;min-width:240px;max-width:100%;font-weight:normal}
.pais-nota{margin:6px 0 0;font-size:15px;color:#444}
.pais-co{margin:8px 0 0;font-size:15px;background:#fff8d6;border-radius:8px;padding:8px 10px}
.pais-co a{color:var(--c);font-weight:bold}
.pais-info{margin:10px 0 0;font-size:16px;font-weight:bold;color:var(--c2)}
.titulo-libros{margin:6px 0 14px}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.chips a{font-size:13px;text-decoration:none;color:var(--c);border:1px solid #cdd8e4;border-radius:6px;padding:4px 7px;white-space:nowrap}
.chips a.on{background:var(--c);color:#fff;border-color:var(--c)}