/* store.css — Store page, book pages, book checkout, order tracking */
.st-cart{position:relative;display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;border:1px solid var(--border-soft);background:var(--surface-solid);color:inherit}
.st-cart .icon{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.st-cart-n{position:absolute;top:-6px;right:-6px;min-width:19px;height:19px;border-radius:999px;background:#e11d48;color:#fff;font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;padding:0 5px}
.st-tabs{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;margin:0 0 14px;padding-bottom:2px}.st-tabs::-webkit-scrollbar{display:none}
.st-tabs a{flex:0 0 auto;padding:10px 16px;border-radius:999px;border:1.5px solid var(--border-soft);background:var(--surface-solid);font-weight:700;font-size:14px;color:inherit;text-decoration:none;white-space:nowrap}
.st-tabs a.on{background:var(--violet);color:#fff;border-color:var(--violet)}.st-tabs a small{opacity:.7;font-weight:700;margin-left:4px}
.st-sec{margin:22px 0 8px;display:flex;align-items:baseline;justify-content:space-between;gap:10px}.st-sec h2{margin:0;font-size:20px}.st-sec a{font-weight:700;font-size:13.5px;color:var(--violet);text-decoration:none}
.st-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:14px}
@media(min-width:760px){.st-grid{grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:18px}}
.st-card{display:flex;flex-direction:column;border-radius:16px;overflow:hidden;text-decoration:none;color:inherit;border:1px solid var(--border-soft);background:var(--surface-solid);transition:transform .18s,box-shadow .18s}
.st-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px -16px rgba(124,58,237,.45)}
.st-thumb{position:relative;background:var(--grad-brand-soft);overflow:hidden;aspect-ratio:3/4}.st-thumb.sq{aspect-ratio:1/1}.st-thumb.wide{aspect-ratio:16/9}
.st-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.st-thumb .ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:42px;opacity:.5}
.st-kind{position:absolute;left:8px;top:8px;padding:3px 9px;border-radius:999px;background:rgba(15,10,35,.78);color:#fff;font-size:11px;font-weight:700;letter-spacing:.03em}
.st-off{position:absolute;right:8px;top:8px;padding:3px 8px;border-radius:999px;background:#16a34a;color:#fff;font-size:11px;font-weight:700}
.st-body{padding:10px 12px 12px;display:flex;flex-direction:column;gap:4px;flex:1}.st-body h3{margin:0;font-size:14.5px;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.st-by{font-size:12.5px;color:var(--text-dim)}.st-fm{display:flex;gap:5px;flex-wrap:wrap;margin-top:2px}.st-fm span{font-size:11px;font-weight:700;padding:2px 8px;border-radius:999px;background:rgba(124,58,237,.12);color:var(--violet)}
.st-price{margin-top:auto;padding-top:6px;display:flex;align-items:baseline;gap:6px;flex-wrap:wrap}.st-price b{font-size:17px}.st-price s{font-size:12.5px;color:var(--text-dim)}.st-price small{font-size:12px;color:var(--text-dim)}
.st-empty{padding:26px;text-align:center}
/* book page */
.bk-wrap{max-width:1100px;margin:0 auto;padding:12px 16px}.bk-crumbs{font-size:13px;color:var(--text-dim);margin:6px 0 12px}.bk-crumbs a{color:inherit}
.bk-grid{display:grid;grid-template-columns:1fr;gap:22px}@media(min-width:860px){.bk-grid{grid-template-columns:minmax(260px,380px) 1fr;gap:34px;align-items:start}}
.bk-cover{border-radius:18px;overflow:hidden;background:var(--grad-brand-soft);aspect-ratio:3/4;box-shadow:0 22px 50px -26px rgba(76,29,149,.55)}.bk-cover img{width:100%;height:100%;object-fit:cover;display:block}
.bk-thumbs{display:flex;gap:8px;margin-top:10px;overflow-x:auto}.bk-thumbs img{width:62px;height:82px;object-fit:cover;border-radius:10px;border:2px solid transparent;cursor:pointer;flex:0 0 auto}.bk-thumbs img.on{border-color:var(--violet)}
.bk-title{font-size:clamp(23px,4.6vw,34px);line-height:1.15;margin:0 0 4px}.bk-sub{margin:0 0 6px;color:var(--text-dim);font-size:16px}.bk-by{font-weight:700;margin:0 0 12px}
.bk-chips{display:flex;gap:7px;flex-wrap:wrap;margin:0 0 14px}.bk-chips span{padding:4px 11px;border-radius:999px;font-size:12.5px;font-weight:700;border:1px solid var(--border-soft);background:var(--surface-solid)}
.bk-fmt{display:grid;gap:10px;margin:10px 0}@media(min-width:520px){.bk-fmt{grid-template-columns:1fr 1fr}}
.bk-opt{position:relative;display:block;padding:13px 14px;border-radius:16px;border:2px solid var(--border-soft);background:var(--surface-solid);cursor:pointer}.bk-opt input{position:absolute;opacity:0}
.bk-opt.on{border-color:var(--violet);box-shadow:0 0 0 4px rgba(124,58,237,.15)}.bk-opt.off{opacity:.55;cursor:not-allowed}
.bk-opt b{display:block;font-size:15px}.bk-opt .p{font-size:22px;font-weight:700;margin-top:2px}.bk-opt .p s{font-size:13px;font-weight:600;color:var(--text-dim);margin-left:6px}.bk-opt small{display:block;color:var(--text-dim);margin-top:3px;font-size:12.5px;line-height:1.4}
.bk-buy{border-radius:18px;padding:16px;margin:12px 0}.bk-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.bk-qty{display:inline-flex;align-items:center;border:1.5px solid var(--border-soft);border-radius:12px;overflow:hidden}.bk-qty button{width:38px;height:40px;border:0;background:transparent;font-size:20px;font-weight:700;cursor:pointer;color:inherit}.bk-qty span{min-width:30px;text-align:center;font-weight:700}
.bk-deliv{margin:10px 0 0;padding:10px 12px;border-radius:12px;background:rgba(22,163,74,.1);font-size:13.5px;line-height:1.5}
.bk-desc{margin-top:26px;line-height:1.7;font-size:16px}.bk-desc h2{font-size:21px;margin:22px 0 8px}.bk-desc h3{font-size:18px}.bk-desc ul,.bk-desc ol{padding-left:22px}.bk-desc img{max-width:100%;height:auto;border-radius:12px}
.bk-facts{width:100%;border-collapse:collapse;font-size:14.5px}.bk-facts th,.bk-facts td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--border-soft);vertical-align:top}.bk-facts th{width:38%;color:var(--text-dim);font-weight:700}
.bk-faq details{border:1px solid var(--border-soft);border-radius:14px;padding:12px 14px;margin:8px 0;background:var(--surface-solid)}.bk-faq summary{cursor:pointer;font-weight:700}.bk-faq p{margin:8px 0 0;line-height:1.6}
.bk-sticky{position:fixed;left:0;right:0;bottom:0;z-index:60;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:var(--surface-solid);border-top:1px solid var(--border-soft);display:none;gap:10px;align-items:center;justify-content:space-between}
@media(max-width:859px){.bk-sticky.show{display:flex}.bk-wrap{padding-bottom:84px}}
.st-toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%);z-index:300;background:#111827;color:#fff;padding:11px 18px;border-radius:12px;font-weight:700;font-size:14px;box-shadow:0 12px 30px -10px rgba(0,0,0,.5)}
/* checkout + tracking */
.ck-wrap{max-width:980px;margin:0 auto;padding:12px 16px 40px}.ck-grid{display:grid;gap:18px}@media(min-width:860px){.ck-grid{grid-template-columns:1.25fr 1fr;align-items:start}}
.ck-card{border-radius:18px;padding:16px}.ck-card h2{margin:0 0 10px;font-size:19px}
.ck-line{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--border-soft)}.ck-line:last-child{border-bottom:0}.ck-line img{width:54px;height:72px;object-fit:cover;border-radius:8px;background:var(--grad-brand-soft)}
.ck-line .t{flex:1;min-width:0}.ck-line .t b{display:block;line-height:1.3}.ck-line .t small{color:var(--text-dim)}.ck-line .rm{border:0;background:transparent;color:#e11d48;font-weight:700;cursor:pointer;font-size:12.5px;padding:0}
.ck-form label{display:block;font-weight:700;font-size:13.5px;margin:10px 0 4px}.ck-form input,.ck-form select,.ck-form textarea{width:100%;padding:11px 12px;border-radius:12px;border:1.5px solid var(--border-soft);background:var(--surface-solid);color:inherit;font-size:15px;font-family:inherit}
.ck-form .two{display:grid;grid-template-columns:1fr 1fr;gap:10px}.ck-form input.bad{border-color:#e11d48}
.ck-sum div{display:flex;justify-content:space-between;padding:5px 0}.ck-sum .tot{font-size:20px;font-weight:700;border-top:2px solid var(--border-soft);margin-top:6px;padding-top:10px}
.ck-err{color:#e11d48;font-weight:700;font-size:14px;margin:10px 0 0;min-height:18px}.ck-note{font-size:12.5px;color:var(--text-dim);line-height:1.5}
.tr-steps{display:flex;gap:0;margin:16px 0;overflow-x:auto}.tr-steps div{flex:1;min-width:86px;text-align:center;font-size:12.5px;font-weight:700;color:var(--text-dim);position:relative;padding-top:26px}
.tr-steps div:before{content:"";position:absolute;top:6px;left:50%;width:14px;height:14px;margin-left:-7px;border-radius:50%;background:var(--border-soft);z-index:2}.tr-steps div:after{content:"";position:absolute;top:12px;left:-50%;width:100%;height:3px;background:var(--border-soft)}.tr-steps div:first-child:after{display:none}
.tr-steps div.done{color:inherit}.tr-steps div.done:before,.tr-steps div.done:after{background:#16a34a}

/* ---- external store buttons (Amazon, mybook.to, Flipkart …) ---- */
.bk-stores{display:grid;gap:10px;margin-top:10px}
.bk-store{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 18px;border-radius:14px;font-weight:700;font-size:16px;text-decoration:none;color:inherit;background:var(--surface-solid);border:2px solid var(--violet);transition:transform .15s,box-shadow .15s,filter .15s}
.bk-store:hover{transform:translateY(-2px);box-shadow:0 14px 26px -14px rgba(0,0,0,.5);filter:brightness(1.04)}
.bk-store .ar{font-size:18px;opacity:.85}
.bk-store[data-brand=amazon]{background:#ff9900;border-color:#ff9900;color:#111}
.bk-store[data-brand=flipkart]{background:#2874f0;border-color:#2874f0;color:#fff}
.bk-store[data-brand=mybook]{background:linear-gradient(135deg,#7c3aed,#ec4899);border-color:transparent;color:#fff}
.bk-store[data-brand=kobo]{background:#bf0000;border-color:#bf0000;color:#fff}
.bk-store[data-brand=google]{background:#1a73e8;border-color:#1a73e8;color:#fff}
.bk-store[data-brand=notion]{background:#0f172a;border-color:#0f172a;color:#fff}

/* ---- checkout (book cart) ---- */
.co-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:0 0 14px}
.co-steps{display:flex;gap:6px;list-style:none;margin:0;padding:0;font-size:12.5px;font-weight:700;counter-reset:s;flex-wrap:wrap}
.co-steps li{counter-increment:s;display:flex;align-items:center;gap:6px;color:var(--text-dim);padding:5px 12px 5px 6px;border-radius:999px;background:var(--surface-solid);border:1px solid var(--border-soft)}
.co-steps li:before{content:counter(s);display:grid;place-items:center;width:20px;height:20px;border-radius:50%;background:var(--border-soft);font-size:11px}
.co-steps li.done{color:#16a34a}.co-steps li.done:before{content:"✓";background:rgba(34,197,94,.18);color:#16a34a}
.co-steps li.on{color:var(--violet);border-color:var(--violet)}.co-steps li.on:before{background:var(--violet);color:#fff}
.co-card{padding:18px;border-radius:20px;margin-bottom:14px}
.co-h{display:flex;align-items:center;gap:10px;margin:0 0 12px;font-size:17px}
.co-n{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--grad-brand);color:#fff;font-size:13px;font-weight:700;flex:none}
@media(min-width:860px){.co-side{position:sticky;top:84px}}
.ck-line{align-items:center}.ck-line img{width:62px;height:84px;border-radius:10px;box-shadow:0 6px 16px -10px rgba(0,0,0,.5)}
.ck-line>b{font-size:17px;white-space:nowrap}
.co-sum{padding:20px;border-radius:22px}.co-sum h3{margin:0 0 12px}
.ck-sum.co-sum .tot{font-size:21px}
.co-pay{width:100%;padding:15px;font-size:16.5px;font-weight:700;border-radius:14px;border:0;color:#fff;cursor:pointer;background:var(--grad-brand);box-shadow:0 12px 26px -12px rgba(124,58,237,.7);display:flex;align-items:center;justify-content:center;gap:8px;min-height:52px;font-family:inherit}
.co-pay:hover{filter:brightness(1.07)}.co-pay:disabled{opacity:.6;cursor:wait}
.co-pm{text-align:center;font-size:12px;color:var(--text-dim);margin:8px 0 0}
.ck-sum #payBtns{display:block;padding:0}
.co-trust{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:16px;text-align:center;font-size:11.5px;color:var(--text-dim);font-weight:600}
.ck-sum .co-trust>div{display:block;padding:0}.co-trust span{display:block;font-size:19px;margin-bottom:2px}
.ck-form input:focus,.ck-form select:focus,.ck-form textarea:focus{outline:0;border-color:var(--violet);box-shadow:0 0 0 4px rgba(124,58,237,.15)}
@media(max-width:520px){.ck-line{flex-wrap:wrap}.ck-line img{width:54px;height:74px}}