/* Sensei's Bookshelf — store UI (Lantern Bookshop design, L10 2026-10-06). Tokens = Paper & Ink. Night = default; html[data-mode=day] = day. */
/* Paper & Ink tokens (umeshsensei.com): washi #faf5ef / #151011 · sumi #241d1b · red #ed1f24 / #b8161a · gold #c9a227. Night = default. */
:root{--bg:#151011;--paper:#1e1719;--subtle:#2a2124;--ink:#f2ebe6;--muted:#c2b6b1;--line:rgba(242,235,230,.18);--edge:rgba(242,235,230,.36);--accent:#ed1f24;--accent2:#b8161a;--on-accent:#fff;--gold:#c9a227;--gold2:#e0b64a;--good:#4bc98e;--desk:#0f0b0c;
--sky:radial-gradient(1100px 520px at 50% -140px,rgba(255,138,42,.12),transparent 70%),radial-gradient(800px 400px at 90% 10%,rgba(201,128,152,.07),transparent 70%);--hdr:rgba(21,16,17,.88);
--wood1:#4a2e1c;--wood2:#2a180c;--wood3:#5c3a22;--tile1:#3e3436;--tile2:#2a2224;--serif:'Shippori Mincho',serif;--sans:'Zen Kaku Gothic New',system-ui,sans-serif;--glow:rgba(255,150,60,.45);--lamp:1}
html[data-mode=day]{--bg:#faf5ef;--paper:#fdf9f4;--subtle:#f3eadf;--ink:#241d1b;--muted:#5b514d;--line:rgba(36,29,27,.14);--edge:rgba(36,29,27,.3);--gold:#8f6417;--gold2:#a6771a;--good:#0d7a54;--desk:#e9e0d3;
--sky:radial-gradient(1100px 520px at 50% -140px,rgba(237,31,36,.07),transparent 70%),radial-gradient(800px 400px at 90% 10%,rgba(246,195,208,.35),transparent 70%),radial-gradient(700px 360px at 5% 30%,rgba(201,162,39,.08),transparent 70%);--hdr:rgba(250,245,239,.9);
--wood1:#6b4428;--wood2:#3e2614;--wood3:#7a5230;--tile1:#5a4a48;--tile2:#3e3234;--glow:rgba(255,140,50,.0);--lamp:0}
*{box-sizing:border-box}html,body{margin:0}body{background:var(--sky),var(--bg);background-attachment:fixed;color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased;transition:background-color .4s,color .4s}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:0;padding:0}a{color:inherit}h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:700;line-height:1.15}[hidden]{display:none!important}
.icon-btn{text-decoration:none;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);background:var(--paper);color:var(--ink);font-size:16px}
.primary{display:inline-block;padding:12px 18px;border-radius:12px;background:var(--accent);color:var(--on-accent);font-weight:700;text-align:center;border:0}.primary:disabled{opacity:.45;cursor:not-allowed}
.ghost{text-decoration:none;display:inline-block;padding:9px 14px;border-radius:12px;border:1px solid var(--edge);background:transparent;color:var(--ink)}
.tag{display:inline-block;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;border:1px dashed var(--edge);border-radius:999px;padding:2px 8px;color:var(--muted)}.tag.draft{background:var(--accent);color:#fff;border:0}
/* header + side */
.top{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:12px;padding:10px 18px;background:var(--hdr);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{font-family:var(--serif);font-size:19px;font-weight:700;line-height:1.1}.brand small{display:block;font-family:var(--sans);font-size:10.5px;color:var(--accent);letter-spacing:.2em;font-weight:500}
.aud{margin-left:auto;display:flex;gap:2px;background:var(--subtle);border-radius:999px;padding:3px;border:1px solid var(--line)}.aud a,.aud button{text-decoration:none;padding:6px 14px;border-radius:999px;font-size:13px;color:var(--muted)}.aud a[aria-pressed=true],.aud button[aria-pressed=true]{background:var(--accent);color:#fff}
.me{text-decoration:none;display:flex;align-items:center;gap:10px;padding:4px 12px 4px 4px;border-radius:999px;background:var(--subtle);border:1px solid var(--line);text-align:left}.me img{width:32px;height:32px;border-radius:50%;object-fit:cover;box-shadow:0 0 0 2px var(--gold)}.me b{font-size:13px;display:block;line-height:1.2}.me small{display:block;font-size:10.5px;color:var(--gold)}
.cartBtn{position:relative}.cartN{position:absolute;top:-5px;right:-5px;background:var(--accent);color:#fff;font-size:11px;min-width:18px;height:18px;border-radius:9px;display:grid;place-items:center;padding:0 5px;font-weight:700}
.scrim{position:fixed;inset:0;background:rgba(10,8,6,.55);opacity:0;pointer-events:none;transition:opacity .3s;z-index:40}.scrim.on{opacity:1;pointer-events:auto}
.side{position:fixed;top:0;bottom:0;left:0;width:min(320px,88vw);background:var(--paper);z-index:50;transform:translateX(-102%);transition:transform .38s cubic-bezier(.2,.8,.2,1);display:flex;flex-direction:column;padding:18px;border-right:1px solid var(--line)}.side.on{transform:none}
.who{display:flex;gap:12px;align-items:center;margin:8px 0 16px}.who img{width:46px;height:46px;border-radius:50%;object-fit:cover;box-shadow:0 0 0 2px var(--gold)}.who b{display:block;font-family:var(--serif);font-size:17px}.who small{color:var(--muted);font-size:12px}
.nav{text-decoration:none;text-align:left;padding:12px 10px;border-radius:10px;font-size:15.5px;display:flex;justify-content:space-between;align-items:center}.nav:hover{background:var(--subtle)}.nav em{font-style:normal;font-size:12px;background:var(--accent);color:#fff;min-width:22px;height:22px;border-radius:11px;display:grid;place-items:center;padding:0 7px}
.side-foot{margin-top:auto;border-top:1px solid var(--line);padding-top:14px}.back{padding:10px;font-size:14px;color:var(--muted)}
/* hero + filters */
.hero{max-width:1200px;margin:0 auto;padding:30px 20px 6px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center}.hero h1{font-size:clamp(28px,4.4vw,46px);font-weight:800}.hero p{color:var(--muted);margin:8px 0 0;max-width:56ch}
.sale{display:flex;align-items:center;gap:16px;padding:12px 18px;border-radius:16px;background:linear-gradient(135deg,rgba(201,162,39,.14),var(--paper));border:1px solid rgba(201,162,39,.4);box-shadow:0 0 40px -14px var(--glow)}.sale b{display:block;font-family:var(--serif);font-size:15px;color:var(--gold2)}.clock{display:flex;gap:10px;margin-top:4px}.clock span{display:flex;flex-direction:column;align-items:center;font-variant-numeric:tabular-nums}.clock span b{font-size:22px;line-height:1;color:var(--ink)}.clock small{font-size:9.5px;color:var(--muted);letter-spacing:.1em}
.filters{max-width:1200px;margin:14px auto 0;padding:0 20px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}.chip{padding:7px 13px;border-radius:999px;border:1px solid var(--line);background:var(--paper);font-size:13px}.chip[aria-pressed=true]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
/* shelves — a real wooden bookshelf */
.shop{max-width:1200px;margin:0 auto;padding:10px 0 90px}
.shelfrow{margin:46px 12px 0;position:relative;background:linear-gradient(180deg,transparent 0 118px,color-mix(in srgb,var(--wood1) 26%,transparent) 118px calc(100% - 14px),transparent calc(100% - 14px));border-radius:6px}
html[data-mode=day] .shelfrow{background:linear-gradient(180deg,transparent 0 118px,color-mix(in srgb,var(--wood1) 14%,transparent) 118px calc(100% - 14px),transparent calc(100% - 14px))}
.eave{position:relative;height:30px;background:linear-gradient(var(--wood1),var(--wood2));border-radius:4px;box-shadow:0 14px 30px rgba(0,0,0,.35)}
.eave::before{content:"";position:absolute;left:0;right:0;top:-16px;height:18px;background:repeating-linear-gradient(90deg,var(--tile1) 0 18px,var(--tile2) 18px 22px);border-radius:3px 3px 0 0;box-shadow:0 4px 6px rgba(0,0,0,.35)}
.eave::after{content:"";position:absolute;left:4%;right:4%;bottom:-8px;height:8px;background:repeating-linear-gradient(90deg,var(--wood2) 0 26px,transparent 26px 48px)}
.shelf-title{display:flex;align-items:flex-start;gap:16px;padding:0 20px 0 32px;margin-top:-2px;min-height:124px}.shelf-title h2{padding-top:46px;font-size:22px}.shelf-title .cnt{padding-top:52px;color:var(--muted);font-size:12.5px;margin-left:auto}
.lantern{width:92px;transform-origin:50% 0;display:inline-block}.lantern svg{width:100%;height:auto;display:block;overflow:visible;animation:sway 5s ease-in-out infinite;transform-origin:50% 0}.lantern .glow{opacity:var(--lamp);transition:opacity .6s}
@keyframes sway{0%,100%{transform:rotate(-1.5deg)}50%{transform:rotate(1.5deg)}}
.rail{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 22px 26px;scrollbar-width:none;align-items:flex-end}.rail::-webkit-scrollbar{display:none}
.shelfrow::after{content:"";position:absolute;left:0;right:0;bottom:0;height:14px;background:linear-gradient(var(--wood3),var(--wood2));border-radius:3px;box-shadow:0 10px 24px rgba(0,0,0,.4),inset 0 2px 0 rgba(255,255,255,.08)}
.book{flex:0 0 var(--bw,172px);scroll-snap-align:start;display:flex;flex-direction:column}
.cover-btn{display:block;width:100%;transition:transform .35s cubic-bezier(.2,.8,.2,1);text-align:left}.book:hover .cover-btn{transform:translateY(-10px)}
.cover{aspect-ratio:var(--ar,3/4.1);border-radius:4px 10px 10px 4px;position:relative;overflow:hidden;background:#fff;box-shadow:inset 5px 0 0 rgba(0,0,0,.18),inset 7px 0 0 rgba(255,255,255,.18),0 24px 30px -14px rgba(0,0,0,.6),0 0 0 1px rgba(255,255,255,.06)}
.cover img{width:100%;height:100%;object-fit:cover;object-position:top;display:block}.cover .lv{position:absolute;top:10px;left:14px;font-size:11px;font-weight:700;background:rgba(0,0,0,.55);color:#ffd58a;padding:2px 8px;border-radius:999px;border:1px solid rgba(255,213,138,.4)}
.cover .ribbon{position:absolute;top:10px;right:10px;background:var(--accent);color:#fff;font-size:10.5px;font-weight:700;padding:2px 8px;border-radius:999px}.cover .draft{position:absolute;bottom:10px;left:10px}
.cover .ct{position:absolute;left:0;right:0;bottom:0;padding:26px 12px 10px;background:linear-gradient(transparent,rgba(20,10,8,.86));color:#f7efe2;font-family:var(--serif);font-size:13px;line-height:1.3;font-weight:700}
.meta{margin-top:12px}.meta .t{display:block;font-weight:700;line-height:1.3;font-size:14.5px}.meta .s{display:block;color:var(--muted);font-size:12px;margin-top:2px}
.price{display:flex;align-items:baseline;gap:7px;margin-top:8px;flex-wrap:wrap}.price .now{font-family:var(--serif);font-size:20px;font-weight:700;color:var(--gold2)}.price s{color:var(--muted);font-size:12.5px}.price .ed{font-size:11px;color:var(--muted)}
.add{text-decoration:none;display:block;margin-top:8px;padding:10px;border-radius:12px;background:var(--accent);color:#fff;font-weight:700;font-size:13.5px;text-align:center;width:100%}.add.ghost{background:transparent;border:1.5px solid var(--edge);color:var(--ink)}
/* series page */
.series{max-width:1100px;margin:0 auto;padding:22px 20px 90px}.crumb{font-size:13px;color:var(--muted);margin-bottom:12px}.crumb a{text-decoration:none}
.shead{display:grid;grid-template-columns:150px 1fr;gap:22px;align-items:end;margin-bottom:22px}.shead .cover{width:var(--hw,150px)}.shead h1{font-size:clamp(26px,4vw,40px)}.shead p{color:var(--muted);margin:6px 0 0}
.bundle{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px}.bundle .b{padding:10px 14px;border-radius:12px;border:1px solid rgba(201,162,39,.4);background:linear-gradient(135deg,rgba(201,162,39,.14),var(--paper))}.bundle .b b{font-family:var(--serif);color:var(--gold2)}
.book-sec{margin-top:26px}.book-sec h2{font-size:20px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}.book-sec h2 .tag{font-size:10px}
.parts{display:grid;grid-template-columns:repeat(auto-fill,minmax(var(--pw,150px),1fr));gap:14px;margin-top:12px}
.part{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:8px;display:flex;flex-direction:column;gap:6px}.part .cover{border-radius:4px 8px 8px 4px}.part .pt{font-weight:700;font-size:13.5px;line-height:1.3}.part .pm{color:var(--muted);font-size:11.5px}.part .pr{font-family:var(--serif);color:var(--gold2);font-weight:700}.part .pr.np{color:var(--muted);font-weight:400;font-size:12px}
.part .acts{display:flex;gap:6px}.part .acts button,.part .acts a{text-decoration:none;text-align:center;flex:1;padding:7px 6px;border-radius:9px;font-size:12px;border:1px solid var(--edge)}.part .acts .buy{background:var(--accent);color:#fff;border-color:var(--accent)}.part .owned{text-decoration:none;font-size:11px;color:var(--good);font-weight:700}
.print{margin-top:10px;font-size:12.5px;color:var(--muted);border:1px dashed var(--edge);border-radius:10px;padding:8px 10px}
/* bottom sheet / popup */
.sheet{position:fixed;inset:auto 0 0 0;z-index:60;background:var(--paper);border-radius:18px 18px 0 0;max-height:92vh;display:flex;flex-direction:column;transform:translateY(102%);transition:transform .38s cubic-bezier(.2,.8,.2,1);box-shadow:0 -20px 60px rgba(0,0,0,.4)}.sheet.on{transform:none}
@media (min-width:761px){.sheet{inset:0;margin:auto;width:min(620px,94vw);height:min(760px,92vh);border-radius:18px;transform:translateY(30px) scale(.98);opacity:0;pointer-events:none}.sheet.on{transform:none;opacity:1;pointer-events:auto}}
.sh-head{display:flex;justify-content:space-between;align-items:center;padding:14px 18px 8px}.sh-head h3{font-size:20px}.grip{width:44px;height:5px;border-radius:3px;background:var(--line);margin:8px auto 0}
.sh-body{flex:1;overflow:auto;padding:4px 18px}.sh-foot{padding:12px 18px 18px;border-top:1px solid var(--line)}
.opt{display:flex;gap:12px;align-items:center;padding:12px;border:1.5px solid var(--line);border-radius:12px;margin-bottom:8px}.opt.hi{border-color:rgba(201,162,39,.6);background:linear-gradient(135deg,rgba(201,162,39,.12),var(--paper))}.opt b{display:block}.opt small{color:var(--muted);font-size:12px}.opt .p{margin-left:auto;font-family:var(--serif);color:var(--gold2);font-weight:700;white-space:nowrap}.opt input{width:18px;height:18px}
.chk h4{font-size:14px;margin:12px 0 6px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}.chk label{display:flex;gap:10px;align-items:center;padding:8px 6px;border-bottom:1px solid var(--line);font-size:14px}.chk label .p{margin-left:auto;font-variant-numeric:tabular-nums;color:var(--gold2)}.chk label .own{margin-left:auto;font-size:11px;color:var(--good);font-weight:700}.chk label.dis{opacity:.5}
.sum{display:flex;justify-content:space-between;padding:3px 0;font-variant-numeric:tabular-nums;font-size:14px}.sum.disc{color:var(--good)}.sum.big{font-size:20px;font-family:var(--serif);margin:6px 0 10px;color:var(--gold2)}.sum small{color:var(--muted)}
/* cart / checkout */
.ck{max-width:980px;margin:0 auto;padding:22px 20px 90px;display:grid;grid-template-columns:1.3fr 1fr;gap:22px}.ck h1{font-size:30px;grid-column:1/-1}
.card{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:16px 18px}.card h3{font-size:18px;margin-bottom:10px}
.line{display:grid;grid-template-columns:44px 1fr auto;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);align-items:center}.line img{width:44px;height:58px;object-fit:cover;border-radius:3px 6px 6px 3px}.line b{display:block;font-size:14px;line-height:1.3}.line small{color:var(--muted);font-size:12px}.line .lp{font-variant-numeric:tabular-nums;text-align:right}.line .lp s{display:block;color:var(--muted);font-size:11px}
.pay{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:10px 0}.pay button{padding:12px;border-radius:12px;border:1.5px solid var(--line);background:var(--subtle);font-weight:700}.pay button[aria-pressed=true]{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 25%,transparent)}
.field{display:block;margin:10px 0}.field span{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}.field input{width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--edge);background:var(--bg);color:var(--ink);font:inherit}
.drop{border:1.5px dashed var(--edge);border-radius:12px;padding:18px;text-align:center;color:var(--muted);font-size:13.5px;margin-top:8px}
.acct{display:flex;gap:12px;align-items:center;padding:10px 12px;border-radius:10px;background:var(--subtle);margin-top:8px;font-size:14px}.acct b{font-family:var(--serif);letter-spacing:.04em}
.steps{display:flex;gap:6px;margin:10px 0 0;font-size:12px;color:var(--muted)}.steps span{flex:1;padding:6px;border-radius:8px;background:var(--subtle);text-align:center}.steps span.on{background:var(--accent);color:#fff}
.adminbar{position:sticky;top:60px;z-index:29;max-width:1200px;margin:10px auto 0;padding:8px 14px;border:1px dashed var(--accent);border-radius:12px;background:color-mix(in srgb,var(--paper) 85%,transparent);font-size:12.5px;display:flex;gap:10px;flex-wrap:wrap;align-items:center}.adminbar b{color:var(--accent)}
.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,20px);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:999px;font-size:14px;opacity:0;transition:.3s;z-index:70;pointer-events:none}.toast.on{opacity:1;transform:translate(-50%,0)}
@media (max-width:760px){html,body{overflow-x:hidden}.hero{grid-template-columns:1fr;padding-top:18px}.me b,.me small{display:none}.me{padding:3px}.me img{width:28px;height:28px}.brand small{display:none}.brand{font-size:13.5px;line-height:1.1;max-width:72px}.top{gap:5px;padding:8px 8px}.top .icon-btn{width:32px;height:32px;font-size:14px}.aud{margin-left:4px}.aud a,.aud button{text-decoration:none;padding:5px 7px;font-size:11px;white-space:nowrap}.sale{padding:10px 12px;gap:10px}.clock span b{font-size:18px}.shelfrow{margin:38px 0 0;border-radius:0}.shelf-title{padding-left:16px;min-height:104px}.shelf-title h2{padding-top:36px;font-size:19px}.shelf-title .cnt{padding-top:42px}.lantern{width:70px}.book{flex-basis:146px}.shead{grid-template-columns:110px 1fr}.shead .cover{width:110px}.ck{grid-template-columns:1fr}.parts{grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}.adminbar{top:54px;margin:8px 10px 0}}

/* ---- L10 live additions ---- */
.store-note{max-width:1100px;margin:16px auto 0;padding:0 20px;color:var(--muted);font-size:13px}
.msg{max-width:980px;margin:14px auto 0;padding:10px 14px;border-radius:12px;font-size:14px}.msg.ok{background:rgba(75,201,142,.12);border:1px solid rgba(75,201,142,.4)}.msg.err{background:rgba(237,31,36,.12);border:1px solid rgba(237,31,36,.45)}
.ck .card form{margin:0}.line .rm{font-size:12px;color:var(--muted);text-decoration:underline;cursor:pointer;background:none;border:0;padding:0;margin-top:2px}
.sum .k{color:var(--muted)}.qr{max-width:180px;border-radius:10px;border:1px solid var(--line);display:block;margin-top:8px}
.orders{width:100%;border-collapse:collapse;font-size:13.5px}.orders th,.orders td{padding:9px 8px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.orders th{color:var(--muted);font-weight:500;font-size:12px;letter-spacing:.06em;text-transform:uppercase}
.st{display:inline-block;font-size:11px;border-radius:999px;padding:2px 9px;border:1px solid var(--line);color:var(--muted)}.st.pending_payment,.st.submitted{border-color:var(--gold);color:var(--gold2)}.st.approved{border-color:var(--good);color:var(--good)}.st.rejected,.st.refunded,.st.cancelled{border-color:var(--accent);color:var(--accent)}
.pv{max-width:760px;margin:0 auto;padding:22px 20px 90px}.pv .pages{display:grid;gap:14px;margin:16px 0}.pv .pages img{width:100%;max-width:640px;margin:0 auto;border-radius:8px;border:1px solid rgba(201,162,39,.35);display:block;background:#fff}.pv.land .pages img{max-width:760px}
.pv .stop{border:1px solid rgba(201,162,39,.5);border-radius:14px;padding:18px;background:linear-gradient(135deg,rgba(201,162,39,.12),var(--paper));text-align:center}.pv .stop b{font-size:22px;color:var(--gold2);font-family:var(--serif)}
.field textarea,.field select{width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--edge);background:var(--bg);color:var(--ink);font:inherit}.field input[type=file]{padding:8px}
.sheet .opt .p small{display:block;font-size:11px;color:var(--muted);font-weight:400}.sh-body .spin{color:var(--muted);text-align:center;padding:20px}
@media (prefers-reduced-motion:reduce){.lantern svg{animation-duration:12s}.cover-btn,.side,.sheet,.scrim{transition-duration:.01s}}

/* ===== L10.1 B2: chips · collapsible rails · split preview · drawer · skeletons ===== */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0 4px}.chips .chip[aria-pressed=true]{background:var(--accent);color:#fff;border-color:var(--accent)}
.bk{margin-top:18px;border:1px solid var(--line);border-radius:14px;background:color-mix(in srgb,var(--paper) 70%,transparent)}.bk>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:10px;padding:12px 14px;font-family:var(--serif);font-weight:700;font-size:18px}.bk>summary::-webkit-details-marker{display:none}.bk>summary .n{font:500 12px var(--sans);color:var(--muted)}.bk>summary .tw{margin-left:auto;transition:transform .3s;color:var(--muted)}.bk[open]>summary .tw{transform:rotate(90deg)}
.bk .va{margin-left:8px;font:600 12.5px var(--sans);color:var(--gold2);border:1px solid rgba(201,162,39,.5);border-radius:999px;padding:3px 10px;background:none}
.rail2{display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 14px 14px;scrollbar-width:none}.rail2::-webkit-scrollbar{display:none}.rail2.grid{flex-wrap:wrap;overflow:visible}
.rail2 .part{flex:0 0 150px;scroll-snap-align:start}.rail2.land .part{flex-basis:200px}.rail2.grid .part{flex-basis:calc(16.66% - 10px)}.rail2 .part.full{flex-basis:170px;border-color:rgba(201,162,39,.6);background:linear-gradient(135deg,rgba(201,162,39,.14),var(--paper))}.rail2.land .part.full{flex-basis:220px}
.save{position:absolute;left:8px;bottom:8px;background:var(--good);color:#06231a;font-size:10.5px;font-weight:800;padding:3px 8px;border-radius:999px}
.cover.svg{background:transparent;box-shadow:0 18px 26px -16px rgba(0,0,0,.55),0 0 0 1px rgba(0,0,0,.06)}.cover.svg img{object-fit:contain;background:transparent}
/* split preview (desktop) / bottom sheet (phone) */
.split{display:grid;grid-template-columns:1fr;max-width:1200px;margin:0 auto}.split.on{grid-template-columns:minmax(0,1fr) 440px}
.pv{position:fixed;inset:auto 0 0 0;z-index:55;background:var(--paper);border-radius:18px 18px 0 0;max-height:92vh;transform:translateY(102%);transition:transform .38s cubic-bezier(.2,.8,.2,1);display:flex;flex-direction:column;box-shadow:0 -20px 60px rgba(0,0,0,.4)}.pv.on{transform:none}
@media (min-width:901px){.pv{position:sticky;top:76px;inset:auto;align-self:start;height:calc(100vh - 92px);border-radius:16px;border:1px solid var(--line);transform:none;display:none;box-shadow:none;margin:14px 14px 0 0}.split.on .pv{display:flex}}
.pv .hd{display:flex;align-items:center;gap:10px;padding:12px 14px 8px;border-bottom:1px solid var(--line)}.pv .hd b{font-family:var(--serif);font-size:16px;line-height:1.2}.pv .hd small{display:block;color:var(--muted);font-size:12px}
.pv .pages{flex:1;overflow:auto;padding:12px 14px;display:flex;flex-direction:column;gap:10px;scroll-snap-type:y mandatory}.pv .pages img,.pv .pages .sk{width:100%;border-radius:6px;background:#fff;box-shadow:0 6px 20px rgba(0,0,0,.25);scroll-snap-align:start;aspect-ratio:var(--par,4/3)}
.pv .ft{padding:10px 14px 14px;border-top:1px solid var(--line);display:flex;gap:10px;align-items:center}.pv .ft .p{font-family:var(--serif);font-size:20px;color:var(--gold2);font-weight:700}.pv .ft .primary{margin-left:auto}
.pv .pager{display:flex;gap:6px;align-items:center;font-size:12px;color:var(--muted)}.pv .pager button{border:1px solid var(--line);border-radius:8px;padding:4px 8px}
/* cart drawer */
.drawer{position:fixed;top:0;bottom:0;right:0;width:min(420px,92vw);background:var(--paper);z-index:58;transform:translateX(102%);transition:transform .38s cubic-bezier(.2,.8,.2,1);display:flex;flex-direction:column;border-left:1px solid var(--line);box-shadow:-20px 0 60px rgba(0,0,0,.35)}.drawer.on{transform:none}
.drawer .hd{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--line)}.drawer .hd h3{font-size:20px}.drawer .body{flex:1;overflow:auto;padding:6px 16px}.drawer .ft{padding:12px 16px 16px;border-top:1px solid var(--line)}
/* skeletons */
.sk{background:linear-gradient(90deg,var(--subtle) 25%,color-mix(in srgb,var(--subtle) 60%,var(--paper)) 50%,var(--subtle) 75%);background-size:200% 100%;animation:sh 1.1s infinite;border-radius:8px}@keyframes sh{0%{background-position:200% 0}100%{background-position:-200% 0}}
.sk.t{height:34px;width:60%;margin:8px 0}.sk.l{height:16px;width:40%}.sk.c{height:200px;width:150px;border-radius:4px 10px 10px 4px;flex:0 0 150px}
@media (max-width:760px){.rail2 .part{flex-basis:132px}.rail2.land .part{flex-basis:176px}.rail2.grid .part{flex-basis:calc(50% - 8px)}.rail2 .part.full{flex-basis:150px}.rail2.land .part.full{flex-basis:190px}.pv .pages{padding:8px}}

.aud a{padding:6px 14px;border-radius:999px;font-size:13px;color:var(--muted);text-decoration:none;white-space:nowrap}.aud a[aria-pressed=true]{background:var(--accent);color:#fff}
@media (max-width:760px){.aud a{padding:5px 7px;font-size:11px}.me{display:none}}

.pv[aria-hidden=true]{pointer-events:none}.pv.on[aria-hidden=true]{pointer-events:auto}.drawer .line img{object-fit:contain;background:none}.sk-wrap{padding:22px 20px}.part .cover .save{z-index:2}.crumb a{text-decoration:none}
.bk .st-draft{margin-left:6px}@media (prefers-reduced-motion:reduce){.sk{animation-duration:3s}}
/* L14 — free sample + preview control */
.part .lv.free{left:auto;right:8px;background:var(--good,#2f8f5b);color:#fff}
.acts a.free-read{color:var(--good,#2f8f5b);border-color:var(--good,#2f8f5b);font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pv-off{border:1px dashed rgba(201,162,39,.6);border-radius:12px;padding:22px 16px;text-align:center;font-size:14px;color:var(--ink);background:rgba(201,162,39,.08)}
.pv-free{border:1px solid rgba(47,143,91,.45);border-radius:12px;padding:10px 12px;font-size:13px;background:rgba(47,143,91,.1)}
.pv-free a{color:var(--good,#2f8f5b);font-weight:700}
.msg.off{background:rgba(201,162,39,.1);border:1px dashed rgba(201,162,39,.6)}
.msg.free{background:rgba(47,143,91,.1);border:1px solid rgba(47,143,91,.45)}

/* L15 — official free textbook cards (no file hosted, nothing sold) */
.part .lv.ext{left:auto;right:8px;background:#1d4ed8;color:#fff}
.acts a.ext{color:#1d4ed8;border-color:#1d4ed8;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}
.ext-note{font-size:11.5px;color:var(--muted);font-weight:500}

/* ===== L16 layout fixes (Umesh's screenshots, 2026-10-09) ===== */
/* a) series hero: the cover column is sized by the cover itself (a landscape cover is 220px, the old fixed 150px column let it spill over the title and buttons) */
.shead{grid-template-columns:auto minmax(0,1fr);align-items:start}.shead .cover{width:var(--hw,150px);max-width:42vw;flex:none}.shead>div{min-width:0}
@media (max-width:760px){.shead{grid-template-columns:auto minmax(0,1fr);gap:14px}.shead .cover{width:min(var(--hw,110px),38vw)}}
/* b) admin preview bar: normal flow under the header, never sticky, never over content */
.adminbar{position:static;top:auto;z-index:auto}
/* c) desktop preview panel: sticky under the header with its own scroll (the old rule set top:76px and then inset:auto, which reset it) */
@media (min-width:901px){.split.on .pv{position:sticky;inset:auto;top:76px;align-self:start;height:calc(100vh - 92px);max-height:calc(100vh - 92px);overflow:hidden}.pv .pages{overflow:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}}
/* c) phone/tablet: the sheet owns the scroll; the page behind is locked while it is open */
html.pv-lock,html.pv-lock body{overflow:hidden!important;height:100%;overscroll-behavior:none}
@media (max-width:900px){.pv.on{max-height:88vh}.pv .pages{overflow:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}}
/* payment page (L16 §3) */
.paybig{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:8px 0 14px}.paybig .kv{background:var(--subtle);border:1px solid var(--line);border-radius:14px;padding:12px 14px}.paybig .kv small{display:block;color:var(--muted);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase}.paybig .kv b{display:block;font-family:var(--serif);font-size:28px;line-height:1.2;color:var(--gold2);word-break:break-all}.paybig .kv .copy{margin-top:8px}
.copy{font:600 12.5px var(--sans);border:1px solid var(--edge);border-radius:999px;padding:5px 11px;background:var(--paper);color:var(--ink);cursor:pointer}.copy[data-done="1"]{border-color:var(--good);color:var(--good)}
.wallet{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding:12px 14px;border-radius:14px;background:var(--subtle);border:1px solid var(--line);margin-top:8px}.wallet b{font-family:var(--serif);font-size:19px;letter-spacing:.04em}.wallet .lbl{min-width:70px;color:var(--muted);font-size:13px}.wallet .open{margin-left:auto;text-decoration:none;background:var(--accent);color:#fff;font-weight:700;padding:9px 14px;border-radius:12px;font-size:13.5px;white-space:nowrap}
.paynote{margin-top:12px;padding:10px 12px;border-radius:12px;border:1px dashed rgba(201,162,39,.6);background:rgba(201,162,39,.1);font-size:14px}.paynote b{font-family:var(--serif)}
.qrbox{text-align:center;margin-top:10px}.qrbox img{max-width:220px;border-radius:12px;border:1px solid var(--line);background:#fff}.qrbox small{display:block;color:var(--muted);font-size:12px;margin-top:4px}
@media (max-width:560px){.paybig{grid-template-columns:1fr}.wallet .open{margin-left:0;width:100%;text-align:center}}

/* ===== L17 — level / field tints (tokens in config/lib_tint.php, emitted as .tint-* custom properties by library.php) ===== */
.lvchip{background:var(--tint-bg,var(--subtle));color:var(--tint-fg,var(--muted));border:1px solid var(--tint-accent,var(--edge));font-weight:700;letter-spacing:.1em}
.shelfrow .shelf-title{border-radius:12px 12px 0 0}.shelfrow[class*=tint-] .shelf-title h2{color:var(--tint-fg)}.shelfrow[class*=tint-] .shelf-title{background:linear-gradient(90deg,var(--tint-bg),transparent 70%)}
.book .lv.tinted{background:var(--tint-accent);color:#fff;border-color:transparent}
/* SSW entrance on the shelf + hub page */


.fieldchips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.fieldchips a{text-decoration:none;display:inline-flex;align-items:center;gap:6px;padding:7px 12px;border-radius:999px;background:var(--tint-bg);color:var(--tint-fg);border:1px solid var(--tint-accent);font-size:13px;font-weight:700}.fieldchips a small{font-weight:500;opacity:.8}.fieldchips a[aria-current=page]{background:var(--tint-accent);color:#fff}


@media (max-width:760px){}

/* L19-3: SSW field decks */.shelf-title h2 .en{display:block;font-size:12px;color:var(--muted);font-weight:400;letter-spacing:0;font-family:system-ui,sans-serif;margin-top:2px}.bk{scroll-margin-top:84px}.book.official .meta .s{white-space:normal;line-height:1.3}
/* L19-4: payment guide popup */.guide-link{font-size:13px;font-weight:700;margin-left:10px;color:var(--accent);text-decoration:none;border:1px solid var(--accent);border-radius:999px;padding:3px 10px;vertical-align:middle;white-space:nowrap}.guide{position:fixed;inset:0;z-index:60;background:rgba(20,14,10,.55);display:flex;align-items:flex-end;justify-content:center}.guide[hidden]{display:none}.guide-card{background:var(--paper);color:var(--ink);width:100%;max-width:520px;border-radius:18px 18px 0 0;padding:18px 18px calc(18px + env(safe-area-inset-bottom,0px));max-height:88vh;overflow:auto;box-shadow:0 -10px 40px rgba(0,0,0,.4)}.guide-hd{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:6px}.guide-hd b{font-size:20px;font-family:"Shippori Mincho",serif}.guide-hd b small{display:block;font-size:12px;color:var(--muted);font-weight:400;font-family:system-ui,sans-serif}.guide-steps{margin:0 0 14px;padding:0;list-style:none;counter-reset:g}.guide-steps li{position:relative;padding:9px 0 9px 42px;border-top:1px solid var(--line);counter-increment:g}.guide-steps li::before{content:counter(g);position:absolute;left:0;top:10px;width:30px;height:30px;border-radius:50%;background:var(--accent);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:14px}.guide-steps b{display:block;font-size:15px;line-height:1.35}.guide-steps small{display:block;color:var(--muted);font-size:12.5px;margin-top:3px;line-height:1.4}.guide-steps code{background:var(--subtle);padding:1px 6px;border-radius:6px;font-weight:800}body.guide-open{overflow:hidden}@media(min-width:720px){.guide{align-items:center;padding:20px}.guide-card{border-radius:18px}}
/* L19-5: My Books wall */.book.mine .acts{display:flex;flex-direction:column;gap:6px;margin-top:8px}.book.mine .acts .add,.book.mine .acts .ghost{display:block;text-align:center;margin:0;padding:9px 10px;font-size:13px;border-radius:12px;width:100%}.book.mine .acts .ghost small{display:block;font-size:11px;font-weight:400;opacity:.8}.book.mine .kind{display:inline-block;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-top:3px}.book.mine .dis{opacity:.45;pointer-events:none}.book.mine .note{font-size:12px;color:var(--muted)}.lv.fullb{left:auto;right:8px;background:#1d1512;color:#ffd58a;border-color:rgba(255,213,138,.4)}.empty-mine{text-align:center;padding:40px 20px;border:1px dashed var(--line);border-radius:18px;margin-top:20px;background:var(--paper)}.empty-mine h2{font-family:"Shippori Mincho",serif;margin:0 0 6px;font-size:22px}.empty-mine p{color:var(--muted);margin:0 0 16px}.mine-hist{max-width:1200px;margin:18px auto 0;padding:0 20px 30px;font-size:12.5px;color:var(--muted)}
/* L20 (2026-10-09) mobile fix — ROOT CAUSE: .split is a grid whose 1fr track = minmax(auto,1fr); the grid item (#view) has min-width:auto = its min-content,
   and the non-wrapping rails (flex, overflow-x:auto) make that min-content the full shelf width (1200 / 1100px). On a phone the column was laid out at 1200px
   and clipped by html{overflow-x:hidden}: cut-off layout and rails whose clientWidth == scrollWidth (nothing to swipe). minmax(0,1fr) + min-width:0 fix it at the root. */
.split{grid-template-columns:minmax(0,1fr)}#view,.series,.shop,.hero,.filters,.shelfrow,.bk,.rail2{min-width:0}
.rail,.rail2{min-width:0;max-width:100%;-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain;touch-action:pan-x pan-y;scroll-snap-type:x proximity}