:root{
    --red:#ee1515; --red-dark:#c00; --blue:#2a75bb; --blue-dark:#1b4f8a;
    --gold:#f6b40b; --ink:#1b1b26; --paper:#f4f6fb; --card:#ffffff;
    --line:#e6e8f0; --muted:#7a8199; --good:#2e9e4b;
    --shadow:0 6px 20px rgba(20,22,40,.10); --shadow-lg:0 14px 40px rgba(20,22,40,.20); --r:16px;
  }
  *{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
  html,body{margin:0;padding:0}
  body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.45;padding-bottom:96px;-webkit-font-smoothing:antialiased}
  a{color:var(--blue);cursor:pointer}
  /* header */
  header{position:sticky;top:0;z-index:20;background:linear-gradient(135deg,var(--red) 0%,var(--red-dark) 60%,#8b0000 100%);color:#fff;padding:16px 18px 18px;border-bottom:4px solid var(--gold);box-shadow:var(--shadow)}
  .brand{display:flex;align-items:center;gap:10px;font-weight:800}
  .pokeball{width:26px;height:26px;border-radius:50%;flex:0 0 auto;background:#fff;position:relative;border:2px solid #222;overflow:hidden}
  .pokeball::after{content:"";position:absolute;left:50%;top:50%;width:8px;height:8px;background:#fff;border:2px solid #222;border-radius:50%;transform:translate(-50%,-50%);z-index:2}
  .pokeball::before{content:"";position:absolute;inset:0 0 50% 0;background:var(--red);border-bottom:2px solid #222}
  .brand h1{font-size:19px;margin:0}
  .brand small{display:block;font-weight:600;opacity:.85;font-size:11px;letter-spacing:.3px}
  .totals{margin-top:14px;display:flex;gap:10px}
  .stat{flex:1;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);border-radius:12px;padding:10px 12px}
  .stat .label{font-size:10.5px;text-transform:uppercase;letter-spacing:.6px;opacity:.85;font-weight:700}
  .stat .value{font-size:20px;font-weight:800;margin-top:2px}
  .stat.big .value{color:var(--gold)}
  .stat.big .pl{font-size:12px;font-weight:800;margin-top:3px}
  .pl.up{color:#7cf3a0} .pl.down{color:#ffc2c2}
  .pl-badge{font-size:11.5px;font-weight:800;margin-top:2px}
  .pl-badge.up{color:var(--good)} .pl-badge.down{color:var(--red-dark)}
  .sc-pl{font-size:15px;font-weight:800;margin-top:8px}
  .sc-pl.up{color:#7cf3a0} .sc-pl.down{color:#ffb3b3}
  /* toolbar */
  .toolbar{max-width:720px;margin:14px auto 0;padding:0 14px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
  .search{flex:1;min-width:140px;position:relative}
  .search input{width:100%;padding:11px 12px 11px 34px;border:1px solid var(--line);border-radius:12px;background:var(--card);font-size:15px;outline:none;box-shadow:var(--shadow)}
  .search svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);opacity:.45}
  select.sort{padding:11px 12px;border:1px solid var(--line);border-radius:12px;background:var(--card);font-size:14px;font-weight:600;color:var(--ink);box-shadow:var(--shadow);outline:none}
  /* grid */
  main{max-width:720px;margin:0 auto;padding:14px}
  .grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
  .pcard{background:var(--card);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);display:flex;flex-direction:column;position:relative;transition:transform .12s}
  .pcard:active{transform:scale(.985)}
  .pcard .imgwrap{aspect-ratio:63/88;background:linear-gradient(160deg,#eef2fb,#dfe6f5);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
  .pcard .imgwrap img{width:100%;height:100%;object-fit:cover;display:block}
  .pcard .ph{font-size:40px;opacity:.4}
  .qty-badge{position:absolute;top:8px;left:8px;background:rgba(27,27,38,.82);color:#fff;font-size:11px;font-weight:800;padding:3px 8px;border-radius:20px}
  .cond-badge{position:absolute;top:8px;right:8px;font-size:10px;font-weight:800;padding:3px 7px;border-radius:20px;color:#fff;text-transform:uppercase}
  .pcard .body{padding:9px 10px 11px;display:flex;flex-direction:column;gap:2px;flex:1}
  .pcard .name{font-weight:800;font-size:14px;line-height:1.2;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
  .pcard .setline{font-size:11.5px;color:var(--muted);font-weight:600;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
  .pcard .val{margin-top:6px;font-weight:800;font-size:17px;color:var(--good)}
  .pcard .val small{color:var(--muted);font-weight:600;font-size:11px}
  .pcard .acts{display:flex;gap:6px;margin-top:9px}
  .pcard .acts button{flex:1;border:1px solid var(--line);background:var(--paper);border-radius:9px;padding:7px;font-size:12px;font-weight:700;cursor:pointer;color:var(--ink)}
  .pcard .acts button.del{color:var(--red);border-color:#f6d2d2;background:#fff5f5}
  .empty{text-align:center;padding:50px 20px;color:var(--muted)}
  .empty .pokeball{width:56px;height:56px;margin:0 auto 14px;border-width:3px}
  .empty .pokeball::after{width:16px;height:16px}
  .empty h3{color:var(--ink);margin:0 0 6px;font-size:20px}
  .empty p{margin:0 auto;font-size:14px;max-width:440px;line-height:1.55}
  .empty-cta{display:flex;flex-direction:column;gap:10px;max-width:320px;margin:18px auto 0}
  .empty-scan{background:linear-gradient(135deg,var(--blue),var(--blue-dark));color:#fff;border:none;border-radius:12px;padding:14px 18px;font-size:16px;font-weight:800;cursor:pointer;box-shadow:var(--shadow-lg);display:flex;align-items:center;justify-content:center;gap:8px}
  .empty-scan span{font-size:20px;line-height:1;margin-top:-2px}
  .empty-demo{background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:12px;padding:12px 18px;font-size:15px;font-weight:700;cursor:pointer}
  .empty-sub{margin:14px auto 0 !important;font-size:12.5px;opacity:.8}
  /* sample-collection banner */
  .demo-banner{display:flex;align-items:center;flex-wrap:wrap;gap:8px 10px;justify-content:center;background:#fff8e6;border:1px solid #f0d488;color:#7a5c12;border-radius:12px;padding:10px 14px;margin:0 0 14px;font-size:13.5px;font-weight:600}
  .demo-banner b{font-weight:800}
  .demo-banner button{background:#7a5c12;color:#fff;border:none;border-radius:8px;padding:6px 12px;font-size:12.5px;font-weight:700;cursor:pointer}
  /* fab */
  .fab{position:fixed;right:18px;bottom:22px;z-index:30;background:linear-gradient(135deg,var(--blue),var(--blue-dark));color:#fff;border:none;border-radius:50px;padding:15px 22px;font-size:16px;font-weight:800;cursor:pointer;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:8px}
  .fab span{font-size:22px;line-height:1;margin-top:-2px}
  /* modal */
  .overlay{position:fixed;inset:0;background:rgba(15,17,30,.55);z-index:40;display:none;align-items:flex-end;justify-content:center}
  .overlay.open{display:flex}
  .sheet{background:var(--card);width:100%;max-width:520px;border-radius:22px 22px 0 0;padding:20px 18px 26px;max-height:94vh;overflow:auto;box-shadow:var(--shadow-lg);animation:up .22s ease;position:relative}
  @media(min-width:560px){.overlay{align-items:center}.sheet{border-radius:22px}}
  @keyframes up{from{transform:translateY(30px);opacity:.6}to{transform:none;opacity:1}}
  .sheet h2{margin:2px 0 16px;font-size:20px;text-align:center}
  .sheet-x{position:absolute;top:12px;right:12px;width:32px;height:32px;border-radius:50%;border:none;background:#eef1f7;color:#555;font-size:18px;cursor:pointer;z-index:2}
  .alt{text-align:center;margin-top:16px;font-size:13.5px;color:var(--muted)}
  .cancel{width:100%;margin-top:10px;background:none;border:none;color:var(--muted);font-weight:700;padding:8px;cursor:pointer;font-size:14px}
  /* start state */
  .bigscan{width:100%;background:linear-gradient(135deg,var(--red),var(--red-dark));color:#fff;border:none;border-radius:16px;padding:26px;font-size:20px;font-weight:800;cursor:pointer;box-shadow:var(--shadow);display:flex;flex-direction:column;align-items:center;gap:8px}
  .bigscan .ic{font-size:40px;line-height:1}
  .bigscan small{font-weight:600;font-size:13px;opacity:.9}
  /* working state */
  .work-photo{width:150px;aspect-ratio:63/88;margin:6px auto 14px;border-radius:12px;overflow:hidden;background:#eef2fb;box-shadow:var(--shadow)}
  .work-photo img{width:100%;height:100%;object-fit:cover;display:block}
  .work-status{text-align:center;font-weight:700;color:var(--blue-dark);font-size:15px}
  .spin{display:inline-block;width:16px;height:16px;border:2.5px solid #cfe0f5;border-top-color:var(--blue);border-radius:50%;animation:sp .8s linear infinite;vertical-align:-3px;margin-right:7px}
  @keyframes sp{to{transform:rotate(360deg)}}
  /* match state */
  .compare{display:flex;gap:12px;justify-content:center;margin-bottom:14px}
  .cc{flex:1;max-width:190px;text-align:center}
  .cc-lbl{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin-bottom:6px}
  .cc-img{aspect-ratio:63/88;border-radius:12px;overflow:hidden;background:linear-gradient(160deg,#eef2fb,#dfe6f5);box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center}
  .cc-img img{width:100%;height:100%;object-fit:contain;display:block}
  .cc.you .cc-lbl{color:var(--blue-dark)}
  .cc.match .cc-lbl{color:var(--good)}
  .m-name{text-align:center;font-size:21px;font-weight:800;line-height:1.15}
  .m-sub{text-align:center;font-size:13.5px;color:var(--muted);font-weight:600;margin-top:2px}
  .worthbtn{width:100%;margin-top:16px;background:linear-gradient(135deg,var(--gold),#e09a06);color:#3a2c00;border:none;border-radius:14px;padding:15px;font-size:16px;font-weight:800;cursor:pointer;box-shadow:var(--shadow)}
  .worth{margin-top:16px;text-align:center;animation:up .25s ease}
  .worth-val{font-size:40px;font-weight:800;color:var(--good);line-height:1}
  .worth-meta{font-size:12.5px;color:var(--muted);font-weight:600;margin-top:4px}
  .addbtn{width:100%;margin-top:16px;background:linear-gradient(135deg,var(--blue),var(--blue-dark));color:#fff;border:none;border-radius:14px;padding:16px;font-size:17px;font-weight:800;cursor:pointer;box-shadow:var(--shadow)}
  /* net-after-fees line */
  .worth-fee{font-size:12.5px;color:var(--muted);font-weight:600;margin-top:7px;line-height:1.5}
  .worth-fee b{color:var(--ink)}
  .worth-fee input{width:54px;padding:3px 5px;border:1px solid var(--line);border-radius:7px;font-size:12.5px;font-weight:800;text-align:center;margin:0 2px;background:var(--card);color:var(--ink)}
  /* eBay affiliate button + disclosure */
  .ebay-btn{display:none;align-items:center;justify-content:center;gap:8px;width:100%;margin-top:12px;background:#0064d2;color:#fff;text-decoration:none;border-radius:14px;padding:14px;font-size:15px;font-weight:800;box-shadow:var(--shadow)}
  .ebay-btn:active{filter:brightness(.94)}
  .ebay-disc{display:none;font-size:11px;color:var(--muted);text-align:center;margin-top:7px;line-height:1.4}
  .ebay-disc a{color:var(--muted);text-decoration:underline}
  /* price transparency */
  .price-src{font-size:11px;color:var(--muted);line-height:1.55;margin-top:9px;text-align:left}
  .price-src b{color:var(--ink)}
  .gsold{display:block;font-weight:700;color:var(--blue);font-size:10px;margin-top:2px;text-decoration:none;white-space:nowrap}
  html[data-theme="dark"] .gsold{color:#8fc0ff}
  /* article / FAQ content (SEO) */
  .content{max-width:720px;margin:26px auto 0;padding:22px 16px 8px;border-top:1px solid var(--line)}
  .content h2{font-size:20px;margin:0 0 10px;color:var(--ink)}
  .content h3{font-size:16px;margin:22px 0 10px;color:var(--ink)}
  .content p{font-size:14px;color:var(--ink);line-height:1.6;margin:0 0 12px}
  .content b{font-weight:800}
  .steps{display:flex;flex-direction:column;gap:10px;margin:0 0 6px}
  .step{display:flex;gap:12px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:13.5px;line-height:1.5;box-shadow:var(--shadow)}
  .stepn{flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:14px}
  .content details{border:1px solid var(--line);border-radius:12px;background:var(--card);margin-bottom:8px;overflow:hidden;box-shadow:var(--shadow)}
  .content summary{cursor:pointer;padding:13px 15px;font-weight:800;font-size:14px;list-style:none;color:var(--ink)}
  .content summary::-webkit-details-marker{display:none}
  .content summary::after{content:"+";float:right;color:var(--muted);font-weight:800;font-size:16px;line-height:1}
  .content details[open] summary::after{content:"–"}
  .content details p{padding:0 15px 14px;margin:0;color:var(--muted);font-size:13.5px;line-height:1.55}
  /* graded */
  .gradebtn{width:100%;margin-top:12px;background:#fff;color:var(--blue-dark);border:2px solid var(--blue);border-radius:14px;padding:14px;font-size:15px;font-weight:800;cursor:pointer}
  .gradebtn:disabled{opacity:.6}
  .gradebox{margin-top:14px;animation:up .25s ease}
  .grade-h{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);text-align:center;margin-bottom:8px}
  .grade-row{display:flex;align-items:center;justify-content:space-between;padding:11px 14px;border:1px solid var(--line);border-radius:12px;margin-bottom:7px;background:#fff}
  .grade-row.top{border-color:var(--gold);background:linear-gradient(135deg,#fffdf5,#fff6df)}
  .grade-g .chip{background:var(--blue);color:#fff;font-size:12px;font-weight:800;padding:4px 10px;border-radius:20px}
  .grade-row.top .grade-g .chip{background:var(--gold);color:#3a2c00}
  .grade-v{font-weight:800;font-size:17px;color:var(--good);text-align:right}
  .grade-v small{display:block;font-weight:600;color:var(--muted);font-size:10px}
  .grade-note{font-size:11px;color:var(--muted);text-align:center;margin-top:6px}
  .grade-msg{text-align:center;color:var(--muted);font-size:13.5px;padding:10px 6px;line-height:1.4}
  .grade-row{position:relative;cursor:pointer}
  .grade-row .gsel{position:absolute;top:-8px;right:-8px;width:22px;height:22px;border-radius:50%;background:var(--blue);color:#fff;font-size:13px;font-weight:800;display:none;align-items:center;justify-content:center;box-shadow:var(--shadow)}
  .grade-row.sel{border-color:var(--blue);box-shadow:0 0 0 2px rgba(42,117,187,.28)}
  .grade-row.sel .gsel{display:flex}
  .grade-row.top.sel{border-color:var(--gold);box-shadow:0 0 0 2px rgba(246,180,11,.4)}
  .grade-row.top.sel .gsel{background:var(--gold);color:#3a2c00}
  .grade-g .chip.raw{background:var(--muted)}
  .grade-g .chip.cgc{background:#0f9d8f} .grade-g .chip.bgs{background:#8e44ad}
  .grade-sub{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.6px;color:var(--muted);margin:14px 0 6px;padding-left:2px}
  .grade-g .graw{font-weight:700;font-size:13px;color:var(--ink)}
  .calc-fee{font-size:13px;font-weight:700;color:var(--ink);margin-bottom:12px;text-align:center}
  .calc-fee input{width:74px;padding:7px 8px;border:1px solid var(--line);border-radius:9px;font-size:15px;font-weight:800;text-align:center;margin-left:4px}
  .calc-row{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 12px;border-bottom:1px solid var(--line);font-size:13.5px}
  .calc-row span{color:var(--ink)} .calc-row b{font-weight:800;white-space:nowrap}
  .calc-row b.pos{color:var(--good)} .calc-row b.neg{color:var(--red-dark)}
  .calc-verdict{margin-top:12px;padding:12px 14px;border-radius:12px;font-size:14px;font-weight:800;text-align:center;line-height:1.35}
  .calc-verdict.pos{background:#eafaef;color:#1c7a37} .calc-verdict.warn{background:#fff7e6;color:#8a6400} .calc-verdict.neg{background:#fdeeee;color:#c0392b}
  /* search + manual */
  .lookup-row{display:flex;gap:8px}
  .lookup-row input{flex:1;padding:12px;border:1px solid var(--line);border-radius:11px;font-size:16px;background:#fbfcfe;outline:none;min-width:0}
  .lookup-row button{background:var(--blue);color:#fff;border:none;border-radius:11px;padding:0 18px;font-weight:800;cursor:pointer}
  .lookup-status{font-size:12.5px;margin-top:10px;color:var(--muted);min-height:16px}
  .lookup-status.loading{color:var(--blue-dark)} .lookup-status.error{color:var(--red-dark)} .lookup-status.ok{color:var(--good);font-weight:700}
  .lookup-results{margin-top:10px;display:flex;flex-direction:column;gap:6px;max-height:58vh;overflow:auto}
  /* visual card-picker grid (search results) */
  .lookup-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:100%}
  .lgrid-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;cursor:pointer;text-align:center;padding:0;box-shadow:var(--shadow)}
  .lgrid-card:active{transform:scale(.97)}
  .lgrid-img{aspect-ratio:63/88;background:linear-gradient(160deg,#eef2fb,#dfe6f5);display:flex;align-items:center;justify-content:center}
  .lgrid-img img{width:100%;height:100%;object-fit:cover;display:block}
  .lgrid-cap{padding:6px 6px 8px}
  .lgrid-set{font-size:11px;font-weight:800;line-height:1.15;color:var(--ink);overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
  .lgrid-num{font-size:10px;color:var(--muted);font-weight:600;margin-top:2px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
  html[data-theme="dark"] .lgrid-img{background:linear-gradient(160deg,#20242f,#171a22)}
  .lresult{display:flex;gap:10px;align-items:center;background:#fff;border:1px solid #e2ecf9;border-radius:10px;padding:7px;cursor:pointer;text-align:left;width:100%}
  .lresult:active{background:#eef5ff}
  .lresult img{width:38px;height:53px;object-fit:contain;border-radius:4px;flex:0 0 auto;background:#eef2fb}
  .lresult .li-main{min-width:0;flex:1}
  .lresult .li-name{font-weight:800;font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .lresult .li-set{font-size:11px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .lresult .li-price{margin-left:auto;font-weight:800;color:var(--good);font-size:14px;white-space:nowrap;padding-left:6px;text-align:right}
  .lresult .li-price small{display:block;font-weight:600;color:var(--muted);font-size:9.5px}
  .field{margin-bottom:13px}
  .field label{display:block;font-size:12px;font-weight:800;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:5px}
  .field input,.field select{width:100%;padding:12px;border:1px solid var(--line);border-radius:11px;font-size:16px;background:#fbfcfe;outline:none;color:var(--ink)}
  .row2{display:flex;gap:10px}.row2>.field{flex:1}
  .photo-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;border:2px dashed var(--line);border-radius:12px;padding:16px;background:#fbfcfe;cursor:pointer;color:var(--muted);font-weight:700;font-size:14px}
  .photo-preview{position:relative;border-radius:12px;overflow:hidden;aspect-ratio:63/88;max-width:150px;margin:0 auto;background:#eef2fb}
  .photo-preview img{width:100%;height:100%;object-fit:cover;display:block}
  .photo-preview .rm{position:absolute;top:6px;right:6px;background:rgba(0,0,0,.6);color:#fff;border:none;border-radius:50%;width:26px;height:26px;font-size:15px;cursor:pointer}
  .val-input{position:relative}
  .val-input span{position:absolute;left:12px;top:50%;transform:translateY(-50%);font-weight:800;color:var(--good)}
  .val-input input{padding-left:26px;font-weight:800}
  .price-status{font-size:12px;margin-top:7px;min-height:14px;color:var(--muted);font-weight:600}
  .price-status.loading{color:var(--blue-dark)} .price-status.ok{color:var(--good);font-weight:800} .price-status.warn{color:var(--red-dark)}
  .save{width:100%;margin-top:6px;background:linear-gradient(135deg,var(--red),var(--red-dark));color:#fff;border:none;border-radius:12px;padding:15px;font-size:16px;font-weight:800;cursor:pointer;box-shadow:var(--shadow)}
  .lookupval{margin-top:8px;width:100%;border:1px solid var(--blue);background:var(--card);color:var(--blue-dark);border-radius:11px;padding:10px;font-size:13.5px;font-weight:800;cursor:pointer}
  .lookupval:active{background:var(--paper)}
  html[data-theme="dark"] .lookupval{color:#8fc0ff}
  /* utils */
  .utils{max-width:720px;margin:6px auto 0;padding:4px 14px 20px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
  .utils button{border:1px solid var(--line);border-radius:10px;padding:9px 14px;font-size:12.5px;font-weight:700;color:var(--muted);cursor:pointer;background:var(--card)}
  .hint{max-width:720px;margin:0 auto;padding:0 14px;text-align:center;color:var(--muted);font-size:11.5px}
  .toast{position:fixed;bottom:92px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:11px 18px;border-radius:30px;font-size:13.5px;font-weight:600;opacity:0;transition:.25s;z-index:60;pointer-events:none;box-shadow:var(--shadow-lg);max-width:90vw;text-align:center}
  .toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
  /* showcase */
  .viewbtn{padding:11px 13px;border:1px solid var(--line);border-radius:12px;background:var(--card);font-size:16px;cursor:pointer;box-shadow:var(--shadow);line-height:1}
  .showcase{position:fixed;inset:0;background:rgba(12,14,26,.94);z-index:50;display:none;flex-direction:column;align-items:center;justify-content:center;padding:20px 12px}
  .showcase.open{display:flex}
  .sc-x{position:absolute;top:14px;right:14px;width:40px;height:40px;border-radius:50%;border:none;background:rgba(255,255,255,.14);color:#fff;font-size:22px;cursor:pointer;z-index:3}
  .sc-stage{position:relative;width:100%;max-width:460px;display:flex;align-items:center;justify-content:center;gap:6px}
  .sc-arrow{flex:0 0 auto;width:44px;height:44px;border-radius:50%;border:none;background:rgba(255,255,255,.16);color:#fff;font-size:26px;font-weight:800;cursor:pointer;display:flex;align-items:center;justify-content:center}
  .sc-arrow:active{background:rgba(255,255,255,.32)}
  .sc-card{flex:1;min-width:0;text-align:center;color:#fff}
  .sc-img{width:100%;max-width:300px;aspect-ratio:63/88;margin:0 auto 16px;border-radius:16px;overflow:hidden;background:#20263a;box-shadow:0 20px 50px rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center}
  .sc-img img{width:100%;height:100%;object-fit:contain;display:block}
  .sc-ph{font-size:70px;opacity:.5;align-items:center;justify-content:center;width:100%;height:100%}
  .sc-grade{color:#fff;font-size:12px;font-weight:800;padding:4px 12px;border-radius:20px;text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px}
  .sc-name{font-size:22px;font-weight:800;line-height:1.2}
  .sc-sub{font-size:14px;opacity:.72;font-weight:600;margin-top:4px}
  .sc-val{font-size:32px;font-weight:800;color:var(--gold);margin-top:12px}
  .sc-count{margin-top:18px;color:rgba(255,255,255,.72);font-size:13px;font-weight:700;letter-spacing:1px}
  @keyframes scin{from{opacity:.3;transform:scale(.97)}to{opacity:1;transform:none}}
  .setsview{position:fixed;inset:0;background:var(--paper);z-index:55;display:none;flex-direction:column}
  .setsview.open{display:flex}
  .sv-top{display:flex;align-items:center;gap:8px;padding:13px 14px;background:#fff;border-bottom:1px solid var(--line)}
  .sv-head{flex:1;text-align:center;font-weight:800;font-size:16px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .sv-back{border:none;background:none;color:var(--blue);font-weight:800;font-size:14px;cursor:pointer;padding:4px;flex:0 0 auto}
  .sv-x{border:none;background:#eef1f7;color:#555;width:32px;height:32px;border-radius:50%;font-size:18px;cursor:pointer;flex:0 0 auto}
  .sv-body{flex:1;overflow:auto;padding:14px;max-width:720px;margin:0 auto;width:100%}
  .sv-note{color:var(--muted);font-size:13px;text-align:center;margin-bottom:12px;line-height:1.4}
  .sv-set{display:flex;align-items:center;gap:10px;width:100%;text-align:left;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;margin-bottom:10px;cursor:pointer;box-shadow:var(--shadow)}
  .sv-set-main{flex:1;min-width:0}
  .sv-set-name{font-weight:800;font-size:15px}
  .sv-set-sub{font-size:12.5px;color:var(--muted);font-weight:700;margin:3px 0 7px}
  .sv-chev{color:var(--muted);font-size:22px;font-weight:800}
  .sv-bar{height:8px;background:#e9edf5;border-radius:6px;overflow:hidden}
  .sv-bar span{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--good));border-radius:6px}
  .sv-prog{text-align:center;font-size:14px;color:var(--ink);font-weight:700;margin-bottom:14px}
  .sv-prog b{font-size:20px}
  .sv-prog .sv-bar{max-width:280px;margin:8px auto 0}
  .sv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
  @media(min-width:520px){.sv-grid{grid-template-columns:repeat(4,1fr)}}
  .sv-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;cursor:pointer}
  .sv-card .sv-img{aspect-ratio:63/88;background:#eef2fb;display:flex;align-items:center;justify-content:center}
  .sv-card .sv-img img{width:100%;height:100%;object-fit:contain}
  .sv-card .sv-num{font-size:10.5px;font-weight:700;color:var(--muted);text-align:center;padding:4px 2px}
  .sv-card:not(.owned){opacity:.42;filter:grayscale(.55)}
  .sv-card.owned{border-color:var(--good);box-shadow:0 0 0 2px rgba(46,158,75,.25)}
  .sv-tick{position:absolute;top:5px;right:5px;width:20px;height:20px;border-radius:50%;background:var(--good);color:#fff;font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;z-index:2}
  .sv-heart{position:absolute;top:5px;right:5px;width:20px;height:20px;border-radius:50%;background:var(--red);color:#fff;font-size:11px;display:flex;align-items:center;justify-content:center;z-index:2}
  .vv-sec{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin:16px 0 8px}
  .vv-fin{display:flex;justify-content:space-between;align-items:center;padding:11px 14px;border:1px solid var(--line);border-radius:12px;margin-bottom:7px;background:#fff;font-size:14px;font-weight:700}
  .vv-fin b{color:var(--good);font-weight:800}
  .vv-card{display:flex;gap:10px;align-items:center;width:100%;text-align:left;background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px;margin-bottom:7px;cursor:pointer}
  .vv-img{width:44px;height:61px;flex:0 0 auto;border-radius:5px;overflow:hidden;background:#eef2fb}
  .vv-img img{width:100%;height:100%;object-fit:contain}
  .vv-main{flex:1;min-width:0}
  .vv-name{font-weight:800;font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .vv-sub{font-size:11.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .vv-price{font-weight:800;color:var(--good);font-size:14px;white-space:nowrap;padding-left:6px}
  .st-tiles{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:8px}
  .st-tile{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;box-shadow:var(--shadow)}
  .st-tile .lbl{font-size:10.5px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);font-weight:800}
  .st-tile .val{font-size:21px;font-weight:800;margin-top:3px}
  .st-tile .val.up{color:var(--good)} .st-tile .val.down{color:var(--red-dark)}
  .st-sec{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin:18px 0 8px}
  .st-row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;border-bottom:1px solid var(--line);font-size:13.5px}
  .st-row .nm{font-weight:700;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .st-row .nm small{color:var(--muted);font-weight:600}
  .st-row b{font-weight:800;white-space:nowrap}
  .st-row b.up{color:var(--good)} .st-row b.down{color:var(--red-dark)}
  .st-bar-row{margin-bottom:11px}
  .st-bar-top{display:flex;justify-content:space-between;font-size:13px;font-weight:700;margin-bottom:4px;gap:8px}
  .st-bar-top .nm{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .st-bar-top .amt{color:var(--good);font-weight:800;white-space:nowrap}
  .st-barline{height:9px;background:#e9edf5;border-radius:6px;overflow:hidden}
  .st-barline span{display:block;height:100%;border-radius:6px}
  .stlink{color:var(--blue);font-weight:800;cursor:pointer;font-size:13px}

  /* theme toggle button (header, both modes) */
  .theme-toggle{position:absolute;top:14px;right:16px;width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.30);background:rgba(255,255,255,.15);color:#fff;font-size:17px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;z-index:3}
  .theme-toggle:active{background:rgba(255,255,255,.32)}

  /* ===================== DARK MODE ===================== */
  html[data-theme="dark"]{
    --ink:#e7e9f2; --paper:#0f1117; --card:#191c26; --line:#2b3040; --muted:#9aa1b7;
    --shadow:0 6px 20px rgba(0,0,0,.5); --shadow-lg:0 16px 44px rgba(0,0,0,.65);
  }
  html[data-theme="dark"] .pcard .imgwrap{background:linear-gradient(160deg,#20242f,#171a22)}
  html[data-theme="dark"] .pcard .acts button.del{background:#2a1618;border-color:#5b2b2f;color:#ff8f8f}
  html[data-theme="dark"] .demo-banner{background:#2a2413;border-color:#5c4d1f;color:#e8cf85}
  html[data-theme="dark"] .demo-banner button{background:#e8cf85;color:#2a2413}
  html[data-theme="dark"] .sheet-x,
  html[data-theme="dark"] .sv-x{background:#2b3040;color:#c7ccdb}
  html[data-theme="dark"] .gradebtn{background:var(--card);color:#8fc0ff}
  html[data-theme="dark"] .grade-row,
  html[data-theme="dark"] .sv-top,
  html[data-theme="dark"] .sv-set,
  html[data-theme="dark"] .sv-card,
  html[data-theme="dark"] .vv-fin,
  html[data-theme="dark"] .vv-card,
  html[data-theme="dark"] .lresult,
  html[data-theme="dark"] .st-tile{background:var(--card)}
  html[data-theme="dark"] .grade-row.top{background:linear-gradient(135deg,#2a2413,#332b12)}
  html[data-theme="dark"] .lresult{border-color:var(--line)}
  html[data-theme="dark"] .lresult:active{background:#232a38}
  html[data-theme="dark"] .lookup-row input,
  html[data-theme="dark"] .field input,
  html[data-theme="dark"] .field select,
  html[data-theme="dark"] .photo-btn{background:#12151d;color:var(--ink)}
  html[data-theme="dark"] .lresult img,
  html[data-theme="dark"] .photo-preview,
  html[data-theme="dark"] .work-photo,
  html[data-theme="dark"] .vv-img,
  html[data-theme="dark"] .sv-card .sv-img{background:#242938}
  html[data-theme="dark"] .sv-bar,
  html[data-theme="dark"] .st-barline{background:#2b3040}
  html[data-theme="dark"] .calc-verdict.pos{background:#12281a;color:#7cf3a0}
  html[data-theme="dark"] .calc-verdict.warn{background:#2c2510;color:#ffd479}
  html[data-theme="dark"] .calc-verdict.neg{background:#2c1414;color:#ff9b9b}
  html[data-theme="dark"] .calc-row b.neg,
  html[data-theme="dark"] .pl-badge.down{color:#ff9b9b}
  /* ===================== /DARK MODE ==================== */