/* Tienda (DEMO) — big, high-contrast, 44px+ targets for older members */
.tienda-page{font-size:18px}
.tienda-hero{padding:clamp(100px,12vw,150px) var(--gut) 0;text-align:center}
.demo-banner{display:inline-flex;align-items:center;gap:10px;max-width:100%;margin:0 auto 34px;padding:12px 20px;border-radius:999px;background:#fff4d6;color:#5a420b;border:1.5px solid #e3c46f;font:500 18px/1.35 var(--sans);letter-spacing:0;text-align:left}
.demo-banner svg{flex:none}
.tienda-hero h1{font:400 clamp(64px,10vw,128px)/1 var(--serif);letter-spacing:-.05em}
.tienda-hero__lead{max-width:640px;margin:18px auto 0;font-size:clamp(19px,1.8vw,23px);line-height:1.45;color:#2b2926}
.tienda{padding-top:clamp(36px,5vw,60px)}
.chips{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;max-width:1160px;margin:0 auto clamp(30px,4vw,48px)}
.chip{min-height:52px;padding:0 22px;border-radius:999px;border:1.5px solid #1d1c1b;background:#fff;color:#1d1c1b;font:500 18px var(--sans);cursor:pointer;transition:background .25s,color .25s,transform .35s var(--ease)}
.chip:hover{transform:translateY(-2px)}
.chip.is-on{background:#1d1c1b;color:#fff}
.chip:focus-visible,.size:focus-visible,.pcard__buy:focus-visible,.co button:focus-visible,.co__opt:focus-within{outline:3px solid var(--teal);outline-offset:3px}
.pgrid-shop{display:grid;gap:24px;max-width:1160px;margin:0 auto}
@media (min-width:640px){.pgrid-shop{grid-template-columns:1fr 1fr}}
@media (min-width:1040px){.pgrid-shop{grid-template-columns:repeat(3,1fr);gap:28px}}
.pcard[hidden]{display:none}
.pcard{display:flex;flex-direction:column;background:#fff;border-radius:28px;overflow:hidden;border:1px solid rgba(0,0,0,.06);box-shadow:0 26px 60px -40px rgba(0,0,0,.55);transition:transform .6s var(--ease),box-shadow .6s var(--ease)}
.pcard:hover{transform:translateY(-6px);box-shadow:0 40px 70px -40px rgba(0,0,0,.6)}
.pcard__img{position:relative;aspect-ratio:1/1;background:#efeeec;overflow:hidden}
.pcard__img img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.pcard:hover .pcard__img img{transform:scale(1.04)}
.pcard.is-out .pcard__img img{filter:grayscale(.85);opacity:.7}
.pcard__badge{position:absolute;left:16px;top:16px;padding:8px 16px;border-radius:999px;background:#1d1c1b;color:#fff;font:600 16px var(--sans);letter-spacing:.04em}
.pcard__body{display:flex;flex-direction:column;gap:12px;flex:1;padding:22px 24px 26px}
.pcard__cat{font:600 14px var(--sans);letter-spacing:.1em;text-transform:uppercase;color:#11707a}
.pcard__cat em{font-style:normal;color:#5c5955;letter-spacing:.06em}
.pcard h3{font:400 clamp(25px,2.2vw,29px)/1.12 var(--serif);letter-spacing:-.02em;color:#000}
.pcard__desc{font-size:18px;line-height:1.5;color:#2b2926;flex:1}
.pcard__sizes{display:grid;gap:8px}
.pcard__lbl{font:600 17px var(--sans);color:#1d1c1b}
.sizes{display:flex;flex-wrap:wrap;gap:8px}
.size{min-width:56px;min-height:52px;padding:0 12px;border-radius:14px;border:1.5px solid #8a857f;background:#fff;color:#1d1c1b;font:600 18px var(--sans);cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.size.is-on{background:#08304c;border-color:#08304c;color:#fff}
.size:disabled{color:#9a948c;border-style:dashed;text-decoration:line-through;cursor:not-allowed;background:#f5f4f2}
.pcard__row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:8px 14px;margin-top:4px}
.pcard__price{font:600 30px/1 var(--sans);letter-spacing:-.02em;color:#000}
.pcard__price small{display:block;margin-top:6px;font:400 14px var(--sans);letter-spacing:0;color:#5c5955}
.pcard__stock{font-size:17px;color:#1d1c1b}
.stk{display:inline-block;padding:5px 12px;border-radius:999px;font:600 16px/1.3 var(--sans)}
.stk--ok{background:#dff3e6;color:#145c30}
.stk--low{background:#fff1d1;color:#6b4508}
.stk--out{background:#ecebe9;color:#3a3835}
.pcard__buy{width:100%;min-height:60px;margin-top:6px;font-size:20px;font-weight:600;background:#000}
.pcard__buy:disabled{background:#d9d7d3;border-color:#d9d7d3;color:#3a3835;cursor:not-allowed;transform:none;box-shadow:none}
/* info */
.tinfo__t{text-align:center;font:400 clamp(36px,4.4vw,54px)/1.05 var(--serif);letter-spacing:-.03em;margin-bottom:clamp(28px,4vw,48px)}
.tinfo__grid{display:grid;gap:22px;max-width:1160px;margin:0 auto}
@media (min-width:880px){.tinfo__grid{grid-template-columns:repeat(3,1fr)}}
.tinfo__c{display:flex;flex-direction:column;gap:12px;background:var(--paper);border-radius:28px;padding:28px 26px;border:1px solid rgba(0,0,0,.06)}
.tinfo__c h3{font:400 28px/1.1 var(--serif)}
.tinfo__c p{font-size:18px;line-height:1.5;color:#1d1c1b}
.tinfo__i{display:grid;place-items:center;width:56px;height:56px;border-radius:50%;background:#08304c;color:#fff}
.tinfo__i svg{width:28px;height:28px}
.tinfo__addr .ulink{font-size:18px;min-height:44px}
.tinfo__tel{min-height:56px;font-size:20px;font-weight:600}
.tinfo__small a{text-decoration:underline;text-underline-offset:3px;display:inline-block;padding:10px 0}
/* checkout (demo) */
.co{position:fixed;inset:0;z-index:120;display:flex;align-items:flex-end;justify-content:center;background:rgba(12,10,9,.62);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);letter-spacing:0}
.co[hidden]{display:none}
.co__panel{width:100%;max-height:92vh;max-height:92dvh;overflow:auto;background:#fff;border-radius:26px 26px 0 0;box-shadow:0 30px 80px -20px rgba(0,0,0,.55);animation:coUp .5s var(--ease)}
@keyframes coUp{from{transform:translateY(40px);opacity:0}}
@media (min-width:700px){.co{align-items:center;padding:24px}.co__panel{width:min(600px,100%);border-radius:26px;max-height:calc(100dvh - 48px)}}
.co__head{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;padding:20px 22px 16px;background:linear-gradient(150deg,#1c1714,#2c211b 50%,#0f3f45);color:#fff}
.co__head h2{font:400 32px/1.1 var(--serif)}
.co__close{width:52px;height:52px;border-radius:50%;border:0;background:rgba(255,255,255,.16);color:#fff;font-size:32px;line-height:1;cursor:pointer}
.co__body{padding:22px 22px 28px;color:#141210;font-size:18px;line-height:1.5;display:grid;gap:22px}
.co__item{display:grid;grid-template-columns:96px 1fr;gap:16px;align-items:center}
.co__item img{width:96px;height:96px;border-radius:16px;object-fit:cover;background:#efeeec}
.co__item h3{font:400 24px/1.15 var(--serif)}
.co__item p{color:#3a3835}
.co fieldset{border:0;margin:0;padding:0;display:grid;gap:10px}
.co legend{font:600 18px var(--sans);margin-bottom:10px;padding:0}
.co .sizes .size{min-width:60px}
.qty{display:flex;align-items:center;gap:10px}
.qty button{width:60px;height:60px;border-radius:16px;border:1.5px solid #1d1c1b;background:#fff;font:500 30px/1 var(--sans);cursor:pointer;color:#141210}
.qty button:disabled{opacity:.35;cursor:not-allowed}
.qty output{min-width:64px;text-align:center;font:600 28px var(--sans)}
.co__hint{font-size:16px;color:#4a4643}
.co__opt{display:grid;grid-template-columns:28px 1fr;gap:12px;align-items:start;padding:16px;border:2px solid #d9d4cc;border-radius:18px;cursor:pointer;min-height:64px}
.co__opt input{width:26px;height:26px;margin:2px 0 0;accent-color:#08304c}
.co__opt strong{display:block;font-size:18px}
.co__opt span{font-size:16px;color:#4a4643}
.co__opt:has(input:checked){border-color:#08304c;background:#f1f6f9}
.co__sum{display:grid;gap:6px;padding:16px 18px;border-radius:18px;background:#f5f4f2}
.co__sum div{display:flex;justify-content:space-between;gap:12px}
.co__sum .tot{font-weight:700;font-size:22px;border-top:1px solid #dcd8d2;padding-top:10px;margin-top:4px}
.co__pay{width:100%;min-height:62px;font-size:20px;font-weight:600;background:#08304c;border-color:#08304c}
.co__pay svg{width:22px;height:22px}
.co__msg{padding:16px 18px;border-radius:16px;background:#e6f5f6;color:#0b4a51;border:1.5px solid #9fd3d8;font-size:18px}
.co__note{font-size:15px;color:#5c5955;text-align:center}
.co__back{min-height:52px}
@media (max-width:420px){.demo-banner{font-size:18px;padding:12px 16px;border-radius:20px}.chip{padding:0 18px;font-size:17px}}
.pcard__img--cover{background:linear-gradient(160deg,#e9e7e3,#d9d6d0)}
.pcard__img--cover img{position:absolute;inset:24px;width:calc(100% - 48px);height:calc(100% - 48px);object-fit:contain;filter:drop-shadow(0 18px 22px rgba(0,0,0,.35))}
.pcard:hover .pcard__img--cover img{transform:scale(1.03)}
/* ===== v4: departments + 3D book showcase ===== */
.tienda{padding:clamp(36px,5vw,60px) var(--gut) clamp(60px,8vw,110px)}
.dtabs{display:grid;grid-template-columns:1fr 1fr;gap:10px;max-width:1160px;margin:0 auto}
.dtab{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:76px;padding:10px 14px;border-radius:20px;border:1.5px solid #1d1c1b;background:#fff;color:#1d1c1b;font:600 18px/1.2 var(--sans);text-align:center;cursor:pointer;transition:background .25s,color .25s,transform .35s var(--ease),box-shadow .3s}
.dtab small{font:400 15px var(--sans);color:#55504a}
.dtab:hover{transform:translateY(-2px);box-shadow:0 14px 30px -18px rgba(0,0,0,.4)}
.dtab.is-on{background:#1d1c1b;color:#fff}.dtab.is-on small{color:#e6e1da}
.dtab--all{grid-column:1/-1;min-height:60px}
.dtab:focus-visible{outline:3px solid var(--teal);outline-offset:3px}
@media (min-width:900px){.dtabs{grid-template-columns:repeat(5,1fr)}.dtab--all{grid-column:auto;min-height:76px}}
.dept{--ac:#a8802a;max-width:1160px;margin:0 auto;padding-top:clamp(56px,7vw,100px);scroll-margin-top:90px}
.dept[hidden]{display:none}
.dept--biblias{--ac:#08304c}.dept--iglesia{--ac:#11707a}.dept--jovenes{--ac:#c2410c}
.dept__head{text-align:center;max-width:720px;margin:0 auto clamp(28px,4vw,44px)}
.dept__num{display:inline-flex;align-items:center;gap:10px;font:600 14px var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--ac)}
.dept__num::before,.dept__num::after{content:"";width:28px;height:2px;background:var(--ac);opacity:.6}
.dept__head h2{margin-top:12px;font:400 clamp(40px,5.4vw,66px)/1.02 var(--serif);letter-spacing:-.035em}
.dept__head p{margin-top:14px;font-size:clamp(18px,1.6vw,21px);line-height:1.5;color:#2b2926}
.dept .pcard__cat{color:var(--ac)}
/* featured books */
.bshow{display:grid;gap:28px}
.bfeat{display:grid;gap:8px;background:#fff;border-radius:32px;overflow:hidden;border:1px solid rgba(0,0,0,.06);box-shadow:0 30px 70px -45px rgba(0,0,0,.6)}
.bfeat__view{position:relative;display:flex;flex-direction:column;align-items:center;gap:14px;padding:26px 16px 24px;background:radial-gradient(120% 90% at 50% 35%,#fbfaf8 0,#ebe8e3 60%,#ddd9d2 100%)}
.bfeat__info{display:flex;flex-direction:column;gap:14px;padding:18px 24px 28px}
.bfeat__info h3{font:400 clamp(30px,3.2vw,44px)/1.05 var(--serif);letter-spacing:-.03em}
.bfeat__info .pcard__desc{font-size:19px;flex:none}
.bfeat__info .pcard__buy{max-width:420px}
@media (min-width:900px){
  .bfeat{grid-template-columns:1.05fr 1fr;align-items:center;gap:0}
  .bfeat__view{padding:40px 30px 34px;height:100%;justify-content:center}
  .bfeat__info{padding:40px 48px}
  .bfeat--flip .bfeat__view{order:2}
}
/* 3D book */
.b3d{--bw:min(56vw,230px);--bh:calc(var(--bw) * var(--ar,1.5));--t:calc(var(--bw) * .14);position:relative;display:grid;place-items:center;width:100%;height:calc(var(--bh) + 70px);perspective:1500px;touch-action:pan-y;cursor:grab;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;border-radius:20px}
@media (min-width:900px){.b3d{--bw:270px}}
.b3d.is-drag{cursor:grabbing}
.b3d:focus-visible{outline:3px solid var(--teal);outline-offset:4px}
.b3d__obj{position:relative;width:var(--bw);height:var(--bh);transform-style:preserve-3d;transform:rotateX(var(--rx,-4deg)) rotateY(var(--ry,28deg))}
.b3d.is-anim .b3d__obj{transition:transform .9s var(--ease)}
.b3d__f{position:absolute;-webkit-backface-visibility:hidden;backface-visibility:hidden}
.b3d__front{inset:0;transform:translateZ(calc(var(--t) / 2));border-radius:2px 6px 6px 2px;overflow:hidden;background:var(--sp)}
.b3d__front img{width:100%;height:100%;object-fit:cover;pointer-events:none}
.b3d__front::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.28) 0,rgba(255,255,255,.12) 3%,rgba(0,0,0,.08) 6%,transparent 12%,transparent 70%,rgba(255,255,255,.08) 100%)}
.b3d__back{inset:0;transform:rotateY(180deg) translateZ(calc(var(--t) / 2));border-radius:6px 2px 2px 6px;display:flex;flex-direction:column;justify-content:center;gap:12px;padding:12% 11%;color:#fff;background:linear-gradient(160deg,var(--sp2),var(--sp));text-align:left}
.b3d__back strong{font:400 calc(var(--bw) * .1)/1.08 var(--serif);letter-spacing:-.01em;color:var(--acc)}
.b3d__back p{font:400 calc(var(--bw) * .06)/1.45 var(--sans);color:rgba(255,255,255,.92)}
.b3d__brand{font:700 calc(var(--bw) * .055)/1 var(--serif);letter-spacing:-.04em;opacity:.85;margin-bottom:auto}
.b3d__auth{margin-top:auto;font:600 calc(var(--bw) * .048)/1 var(--sans);letter-spacing:.12em;color:var(--acc)}
.b3d__spine{top:0;left:calc((var(--bw) - var(--t)) / 2);width:var(--t);height:var(--bh);transform:rotateY(-90deg) translateZ(calc(var(--bw) / 2));background:linear-gradient(90deg,var(--sp),var(--sp2) 45%,var(--sp));display:flex;flex-direction:column;align-items:center;justify-content:space-between;padding:14px 0;color:#fff;overflow:hidden}
.b3d__spine span{writing-mode:vertical-rl;font:400 calc(var(--t) * .42)/1 var(--serif);white-space:nowrap;color:var(--acc);overflow:hidden;max-height:78%}
.b3d__spine small{writing-mode:vertical-rl;font:600 calc(var(--t) * .26)/1 var(--sans);letter-spacing:.1em}
.b3d__pages{top:3px;left:calc((var(--bw) - var(--t)) / 2);width:var(--t);height:calc(var(--bh) - 6px);transform:rotateY(90deg) translateZ(calc(var(--bw) / 2 - 3px));background:repeating-linear-gradient(90deg,#f6f2e9 0 2px,#e2dccf 2px 3px)}
.b3d__top,.b3d__bottom{left:3px;width:calc(var(--bw) - 6px);height:var(--t);top:calc((var(--bh) - var(--t)) / 2);background:repeating-linear-gradient(0deg,#f6f2e9 0 2px,#e2dccf 2px 3px)}
.b3d__top{transform:rotateX(90deg) translateZ(calc(var(--bh) / 2 - 2px))}
.b3d__bottom{transform:rotateX(-90deg) translateZ(calc(var(--bh) / 2 - 2px))}
.b3d__shadow{position:absolute;left:50%;bottom:14px;width:calc(var(--bw) * 1.1);height:26px;margin-left:calc(var(--bw) * -.55);border-radius:50%;background:radial-gradient(closest-side,rgba(0,0,0,.32),transparent);filter:blur(4px);pointer-events:none}
.b3d__hint{display:inline-flex;align-items:center;gap:8px;font:500 17px var(--sans);color:#3a3835}
.b3d__btns{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:100%;max-width:440px}
.b3d__btn{min-height:56px;padding:0 12px;border-radius:999px;border:1.5px solid #1d1c1b;background:#fff;color:#1d1c1b;font:600 18px var(--sans);cursor:pointer;transition:background .25s,color .25s}
.b3d__btn.is-on{background:#1d1c1b;color:#fff}
.b3d__btn:focus-visible{outline:3px solid var(--teal);outline-offset:3px}
@media (max-width:380px){.b3d__btn{font-size:17px}}
/* checkout department line */
.co__dept{display:inline-block;margin-top:6px;padding:4px 12px;border-radius:999px;background:#eef4f7;color:#08304c;font:600 16px var(--sans)}
@media (prefers-reduced-motion:reduce){.b3d.is-anim .b3d__obj{transition:none}}