/* Ebooks de ercabrera.com (/ebooks/ y /ebooks/<libro>/), 17-oct-2026.
   Mismo sistema que pagina.css: blanco, tinta fría, tomate como acento; verde WhatsApp solo para pedir los gratuitos. */
.eb-hero{padding:clamp(40px,6vw,84px) 0 clamp(36px,5vw,64px);background:radial-gradient(1100px 420px at 88% -12%,var(--tomL),transparent 70%),var(--paper);overflow:hidden}
.eb-in{display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(28px,5vw,72px);align-items:center}
.eb-in>*{min-width:0}
.eb-hero h1{font-size:clamp(32px,4.6vw,58px);line-height:1.05;letter-spacing:-.04em;font-weight:650;max-width:19ch}
.eb-hero h1 em{font-style:normal;color:var(--tom)}
.eb-hero .baja{margin-top:20px;font-size:clamp(17px,1.5vw,20px);color:var(--ink2);max-width:58ch;line-height:1.55}
.eb-chip{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;font-family:var(--mono);font-size:12.5px;letter-spacing:.02em;margin-bottom:18px;background:var(--tomL);color:var(--tom2);border:1px solid #F8D6CC}
.eb-chip.gratis{background:#E8F7EE;color:#137a3d;border-color:#BFE8CF}
.eb-chip .ph{font-size:15px}
.eb-meta{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:22px;font-size:14.5px;color:var(--ink3)}
.eb-meta b{color:var(--ink);font-weight:600}
.eb .btn{white-space:normal;text-align:center;line-height:1.3}
.eb .btns{margin-top:26px}

/* portada en 3D suave */
.eb-tapa{position:relative;max-width:400px;margin:0 auto;perspective:1400px}
.eb-tapa .lomo{display:block;position:relative;border-radius:4px 12px 12px 4px;overflow:hidden;transform:rotateY(-10deg) rotateX(2deg);transform-origin:left center;
  box-shadow:0 2px 0 rgba(0,0,0,.06),18px 30px 60px rgba(18,21,24,.28),40px 60px 110px rgba(18,21,24,.16);transition:transform .6s var(--ease)}
.eb-tapa .lomo::before{content:"";position:absolute;inset:0 auto 0 0;width:14px;z-index:2;background:linear-gradient(90deg,rgba(0,0,0,.28),rgba(255,255,255,.12) 55%,transparent)}
.eb-tapa:hover .lomo{transform:rotateY(-3deg)}
.eb-tapa img{display:block;width:100%;height:auto}
.eb-tapa::after{content:"";position:absolute;z-index:-1;left:12%;right:-6%;bottom:-18px;height:40px;border-radius:50%;background:radial-gradient(closest-side,rgba(18,21,24,.22),transparent)}
.eb-precio{position:absolute;z-index:3;bottom:-16px;left:-16px;background:var(--ink);color:#fff;font-weight:650;font-size:20px;letter-spacing:-.02em;padding:10px 16px;border-radius:14px;box-shadow:0 12px 30px rgba(18,21,24,.25)}
.eb-precio.gratis{background:#1FA855}
@media(prefers-reduced-motion:reduce){.eb-tapa .lomo{transform:none}}

/* secciones */
.eb-sec{padding:clamp(48px,7vw,88px) 0;border-top:1px solid var(--line)}
.eb-et{font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--tom2)}
.eb-sec h2{font-size:clamp(27px,3.3vw,40px);letter-spacing:-.035em;line-height:1.1;margin-top:10px;max-width:24ch}
.eb-sec .intro{color:var(--ink2);font-size:clamp(16.5px,1.4vw,18.5px);line-height:1.65;margin-top:14px;max-width:66ch}
.eb-resp{padding-top:clamp(28px,4vw,44px)}

/* capítulos */
.eb-caps{list-style:none;padding:0;margin:clamp(26px,4vw,40px) 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;counter-reset:cap}
.eb-caps li{display:grid;grid-template-columns:52px 1fr;gap:14px;align-items:start;background:var(--paper2);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.eb-caps .n{font-family:var(--mono);font-size:13px;font-weight:500;color:var(--tom2);background:#fff;border:1px solid var(--line);border-radius:12px;height:44px;display:grid;place-items:center}
.eb-caps b{display:block;font-size:17px;letter-spacing:-.015em;line-height:1.3}
.eb-caps p{margin-top:6px;color:var(--ink2);font-size:15px;line-height:1.55}

/* cifras con fuente */
.eb-cifras{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px;margin-top:clamp(24px,3vw,34px)}
.eb-cifras div{border:1px solid var(--line);border-radius:var(--r);padding:20px;background:var(--paper)}
.eb-cifras b{display:block;font-size:clamp(28px,3vw,38px);letter-spacing:-.04em;line-height:1;color:var(--ink)}
.eb-cifras span{display:block;margin-top:8px;color:var(--ink2);font-size:15px;line-height:1.45}
.eb-cifras small{display:block;margin-top:10px;font-family:var(--mono);font-size:11.5px;color:var(--ink3);line-height:1.45}

/* páginas de muestra */
.eb-muestra{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(14px,2.4vw,28px);margin-top:clamp(26px,4vw,40px)}
.eb-muestra figure{margin:0}
.eb-muestra a{display:block;border-radius:8px;overflow:hidden;border:1px solid var(--line);box-shadow:0 18px 44px rgba(18,21,24,.12);transition:transform .35s var(--ease),box-shadow .35s var(--ease);background:#fff}
.eb-muestra a:hover{transform:translateY(-4px);box-shadow:0 26px 60px rgba(18,21,24,.18)}
.eb-muestra img{display:block;width:100%;height:auto}
.eb-muestra figcaption{margin-top:12px;font-size:14px;color:var(--ink2);line-height:1.45}
.eb-muestra figcaption b{display:block;font-family:var(--mono);font-size:11.5px;font-weight:500;color:var(--tom2);margin-bottom:3px}

/* para quién */
.eb-para{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:clamp(26px,4vw,40px)}
.eb-para>div{border:1px solid var(--line);border-radius:18px;padding:clamp(20px,3vw,28px)}
.eb-para .si{background:#F2FAF5;border-color:#CFEBDA}
.eb-para .no{background:var(--paper2)}
.eb-para h3{font-size:19px;letter-spacing:-.02em}
.eb-para ul{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:10px}
.eb-para li{display:flex;gap:10px;align-items:flex-start;font-size:16px;line-height:1.5;color:var(--ink2)}
.eb-para li .ph{flex:none;font-size:20px;margin-top:2px}
.eb-para .si .ph{color:#1FA855}.eb-para .no .ph{color:var(--ink3)}

/* compra / pedido */
.eb-compra{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(22px,4vw,48px);align-items:start;border:1px solid #F8D6CC;background:linear-gradient(180deg,var(--tomL),#fff 70%);border-radius:24px;padding:clamp(24px,4vw,44px);margin-top:clamp(26px,4vw,40px)}
.eb-compra.gratis{border-color:#CFEBDA;background:linear-gradient(180deg,#EEF9F2,#fff 70%)}
.eb-compra>*{min-width:0}
.eb-compra .monto{font-size:clamp(48px,6vw,72px);font-weight:650;letter-spacing:-.05em;line-height:1;color:var(--ink)}
.eb-compra .monto small{font-size:16px;font-weight:500;letter-spacing:0;color:var(--ink3);margin-left:8px}
.eb-compra h3{font-size:clamp(22px,2.4vw,28px);letter-spacing:-.03em;line-height:1.15}
.eb-compra .sub{margin-top:10px;color:var(--ink2);font-size:16px;line-height:1.55}
.eb-compra .btns{margin-top:20px}
.eb-compra .btn{font-size:16.5px;padding:16px 28px}
.eb-pasos{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.eb-pasos li{display:grid;grid-template-columns:40px 1fr;gap:14px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px 18px}
.eb-pasos .pn{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:#fff;font-weight:650;font-size:16px}
.eb-compra.gratis .eb-pasos .pn{background:#1FA855}
.eb-pasos b{display:block;font-size:16.5px;letter-spacing:-.01em}
.eb-pasos p{margin-top:4px;color:var(--ink2);font-size:15px;line-height:1.5}
.eb-pasos a{color:var(--tom2);font-weight:600}
.eb-aviso{margin-top:16px;font-family:var(--mono);font-size:12px;color:var(--ink3);line-height:1.55;display:flex;gap:8px;align-items:flex-start}
.eb-aviso .ph{font-size:16px;color:var(--ink3);flex:none;margin-top:1px}

/* autor sin foto */
.eb-autor{display:grid;grid-template-columns:64px 1fr;gap:clamp(14px,3vw,22px);align-items:start;margin:clamp(44px,6vw,64px) 0 0;padding:clamp(20px,3vw,26px);max-width:760px;border:1px solid var(--line);border-radius:var(--r);background:var(--paper)}
.eb-autor .ini{width:64px;height:64px;border-radius:16px;background:var(--ink);color:#fff;display:grid;place-items:center;font-weight:700;font-size:22px;letter-spacing:-.06em;position:relative}
.eb-autor .ini::after{content:"";position:absolute;top:-4px;right:-4px;width:13px;height:13px;border-radius:50%;background:var(--tom);box-shadow:0 0 0 3px var(--paper)}
.eb-autor .n{font-size:clamp(19px,2vw,22px);font-weight:650;letter-spacing:-.025em;line-height:1.1}
.eb-autor .q{font-family:var(--mono);font-size:12px;color:var(--tom2);margin-top:6px}
.eb-autor p{font-size:15.5px;color:var(--ink2);margin-top:10px;line-height:1.6}
.eb-autor .l{margin-top:12px;display:flex;gap:16px;flex-wrap:wrap;font-size:14px}
.eb-autor .l a{color:var(--tom2);text-decoration:underline;text-underline-offset:3px}

/* tarjetas de libros (hub y «otros ebooks») */
.eb-rej{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2.4vw,26px);margin-top:clamp(26px,4vw,40px)}
.eb-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:20px;background:var(--paper);overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.eb-card:hover{transform:translateY(-4px);box-shadow:0 22px 50px rgba(18,21,24,.12)}
.eb-card .tp{display:block;position:relative;background:var(--paper2);padding:clamp(18px,3vw,28px) clamp(26px,5vw,48px) 0;border-bottom:1px solid var(--line)}
.eb-card .tp img{display:block;width:100%;height:auto;border-radius:4px 8px 0 0;box-shadow:0 -2px 30px rgba(18,21,24,.16)}
.eb-card .px{position:absolute;top:14px;right:14px;font-weight:650;font-size:15px;padding:6px 12px;border-radius:999px;background:var(--ink);color:#fff}
.eb-card .px.gratis{background:#1FA855}
.eb-card .cu{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.eb-card h3{font-size:19px;letter-spacing:-.02em;line-height:1.25}
.eb-card h3 a{text-decoration:none;color:var(--ink)}
.eb-card h3 a:hover{color:var(--tom2)}
.eb-card p{margin-top:8px;color:var(--ink2);font-size:15px;line-height:1.5}
.eb-card .dt{margin-top:10px;font-family:var(--mono);font-size:12px;color:var(--ink3)}
.eb-card .acc{margin-top:auto;padding-top:16px;display:grid;gap:8px}
.eb-card .btn{font-size:14.5px;padding:12px 18px;width:100%}
.eb-otros{grid-template-columns:repeat(5,minmax(0,1fr))}
.eb-otros .eb-card .cu{padding:14px 14px 16px}
.eb-otros .eb-card h3{font-size:15.5px}
.eb-otros .eb-card .tp{padding:14px 22px 0}

/* tabla comparativa */
.eb-tabla{margin-top:clamp(24px,3vw,36px);overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--r)}
.eb-tabla table{min-width:760px;font-size:15px}
.eb-tabla th[scope=row]{font-family:var(--ui);font-size:15px;color:var(--ink);font-weight:600;background:var(--paper);text-transform:none}
.eb-tabla th[scope=row] a{color:var(--ink)}
.eb-tabla td.p{font-weight:650;color:var(--ink);white-space:nowrap}
.eb-tabla td.p.gratis{color:#137a3d}

/* hub: abanico de portadas */
.eb-abanico{position:relative;height:clamp(300px,36vw,460px);max-width:520px;margin:0 auto}
.eb-abanico img{position:absolute;bottom:0;width:48%;height:auto;border-radius:4px 10px 10px 4px;box-shadow:16px 26px 60px rgba(18,21,24,.26)}
.eb-abanico img:nth-child(1){left:0;transform:rotate(-8deg);z-index:1}
.eb-abanico img:nth-child(2){left:26%;bottom:6%;z-index:3}
.eb-abanico img:nth-child(3){right:0;transform:rotate(8deg);z-index:2}
.eb-como{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:clamp(26px,4vw,40px)}
.eb-como>div{border:1px solid var(--line);border-radius:18px;padding:clamp(20px,3vw,28px);background:var(--paper2)}
.eb-como h3{font-size:19px;letter-spacing:-.02em;display:flex;gap:10px;align-items:center}
.eb-como h3 .ph{font-size:22px;color:var(--tom)}
.eb-como .gr h3 .ph{color:#1FA855}
.eb-como p{margin-top:10px;color:var(--ink2);font-size:15.5px;line-height:1.6}
.eb-relac{margin-top:18px;font-size:15px;color:var(--ink2)}
.eb-relac a{color:var(--tom2)}

@media(max-width:1100px){.eb-otros{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:960px){
  .eb-in,.eb-compra{grid-template-columns:1fr}
  .eb-tapa{max-width:300px}
  .eb-rej{grid-template-columns:1fr 1fr}
}
@media(max-width:700px){
  .eb-caps,.eb-para,.eb-como{grid-template-columns:1fr}
  .eb-muestra{grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:74%;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:14px;-webkit-overflow-scrolling:touch}
  .eb-muestra figure{scroll-snap-align:start}
}
@media(max-width:600px){
  .eb-rej{grid-template-columns:1fr}
  .eb-otros{grid-template-columns:1fr 1fr}
  .eb-tapa{max-width:240px}
  .eb-precio{left:-8px;font-size:17px}
  .eb-caps li{grid-template-columns:40px 1fr;padding:16px}
  .eb-caps .n{height:38px}
  .eb-abanico{height:300px}
}
/* ajustes tras revisar capturas (17-oct-2026) */
.eb-card .btn{font-size:14px;padding:12px 14px;border-radius:16px}
@media(max-width:600px){
  .eb .btn{border-radius:16px}
  .eb-card .tp img{max-width:210px;margin:0 auto}
  .eb-abanico{max-width:330px}
  .eb-abanico img{width:44%}
  .eb-abanico img:nth-child(1){left:3%}.eb-abanico img:nth-child(3){right:3%}
}
@media(max-width:600px){.eb-autor{grid-template-columns:1fr}.eb-autor .ini{width:52px;height:52px;font-size:19px}}
.eb-otros-w{margin-top:clamp(48px,6vw,72px);padding-top:clamp(28px,4vw,40px);border-top:1px solid var(--line)}
.eb-otros-w h2{font-size:clamp(22px,2.6vw,30px);letter-spacing:-.03em}

/* kits de IA ($19), 17-oct-2026 */
.kit-inc .n{font-size:22px;color:var(--tom)}
.kit-ins ol{margin:14px 0 0;padding-left:22px;display:grid;gap:9px;color:var(--ink2);font-size:15.5px;line-height:1.55}
.kit-ins ol li::marker{font-family:var(--mono);font-size:13px;color:var(--tom2);font-weight:600}
.kit-ins b{color:var(--ink);font-weight:600}
.kit-ins h3 .ph{color:var(--tom)}
.kit-mini{margin-top:14px;font-size:14px;color:var(--ink3);line-height:1.55}
.kit-ej{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:clamp(22px,3vw,32px)}
.kit-cod{background:#161B20;color:#E9EDF0;border-radius:16px;overflow:hidden;min-width:0}
.kit-cod-bar{font-family:var(--mono);font-size:11.5px;letter-spacing:.07em;text-transform:uppercase;color:#9AA4AD;padding:10px 16px;border-bottom:1px solid #2A3138}
.kit-cod pre{margin:0;padding:16px;font-family:var(--mono);font-size:14px;line-height:1.6;white-space:pre-wrap;word-break:break-word}
.kit-chat{display:grid;gap:12px;margin-top:clamp(22px,3vw,32px);max-width:760px;background:#EFEAE2;border:1px solid var(--line);border-radius:20px;padding:clamp(14px,3vw,24px)}
.kit-b{max-width:86%;border-radius:14px;padding:10px 14px 12px;box-shadow:0 1px 1px rgba(0,0,0,.06)}
.kit-b small{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.04em;color:var(--ink3);margin-bottom:4px}
.kit-b p{font-size:15.5px;line-height:1.55;color:var(--ink)}
.kit-b.tu{justify-self:end;background:#D9FDD3;border-top-right-radius:4px}
.kit-b.ia{justify-self:start;background:#fff;border-top-left-radius:4px}
.kit-rej{grid-template-columns:repeat(2,minmax(0,1fr));max-width:820px}
.kit-prox{margin-top:20px;display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:var(--ink2);line-height:1.55;background:var(--paper2);border:1px dashed var(--line);border-radius:var(--r);padding:14px 18px;max-width:820px}
.kit-prox .ph{font-size:20px;color:var(--tom);flex:none;margin-top:1px}
.kit-prox b{color:var(--ink)}
.eb-otros.kit-otros{grid-template-columns:repeat(2,minmax(0,1fr));max-width:520px}
@media(max-width:700px){.kit-ej{grid-template-columns:1fr}.kit-b{max-width:94%}}
@media(max-width:600px){.kit-rej{grid-template-columns:1fr}.eb-otros.kit-otros{grid-template-columns:1fr 1fr}}