/* Layout: one centred column. Snap = upload card beside a live sample sheet; Check = page photo beside the
   "notebook label" reading; Print = toolbar over a gallery of A4 sheets. Notebook motifs: blue ruling, red margin. */
:root{
  --paper:#F4F6FB; --surface:#FFFFFF; --surface-2:#EDF1F8; --ink:#1B2340; --muted:#5B6480; --line:#D9E1EE;
  --rule:#C7D5EC; --margin:#E06262; --accent:#F2B01E; --accent-ink:#2A1E00; --accent-soft:#FDF1D2;
  --link:#2C59D6; --ok:#1F7F55; --ok-soft:#E3F3EA; --warn:#9A6210; --warn-soft:#FBF0DC; --err:#B3261E; --err-soft:#FBE7E5;
  --shadow:0 1px 2px rgba(27,35,64,.06),0 8px 24px rgba(27,35,64,.07);
  --f-display:'Baloo 2','Hind',system-ui,sans-serif; --f-body:'Hind',system-ui,-apple-system,'Segoe UI',sans-serif; --f-kid:'Andika','Hind',sans-serif;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --paper:#0E1325; --surface:#161D34; --surface-2:#1D2642; --ink:#E7EBF6; --muted:#9BA5C2; --line:#2A3456;
  --rule:#26345A; --margin:#D86F6F; --accent:#F2B01E; --accent-ink:#1E1500; --accent-soft:#3A2F12;
  --link:#8FB0FF; --ok:#5CCB98; --ok-soft:#173A2B; --warn:#E8B45C; --warn-soft:#3A2C12; --err:#FF8A80; --err-soft:#3C1A19;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 30px rgba(0,0,0,.35); color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#0E1325; --surface:#161D34; --surface-2:#1D2642; --ink:#E7EBF6; --muted:#9BA5C2; --line:#2A3456;
  --rule:#26345A; --margin:#D86F6F; --accent:#F2B01E; --accent-ink:#1E1500; --accent-soft:#3A2F12;
  --link:#8FB0FF; --ok:#5CCB98; --ok-soft:#173A2B; --warn:#E8B45C; --warn-soft:#3A2C12; --err:#FF8A80; --err-soft:#3C1A19;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 30px rgba(0,0,0,.35); color-scheme:dark}

*{box-sizing:border-box}
body{background:var(--paper);color:var(--ink);font:400 16px/1.55 var(--f-body);-webkit-font-smoothing:antialiased}
.wrap{max-width:1080px;margin:0 auto;padding-inline:20px;padding-block:20px 64px}
h1,h2,h3{font-family:var(--f-display);line-height:1.15;text-wrap:balance;margin:0}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--link);outline-offset:2px;border-radius:6px}
a{color:var(--link)}
.muted{color:var(--muted)}

/* top bar */
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-block:4px 18px}
.logo{display:flex;align-items:center;gap:10px;min-width:0}
.logo-mark{width:38px;height:38px;border-radius:10px;background:var(--accent);display:grid;place-items:center;flex:none;box-shadow:inset 0 -3px 0 rgba(0,0,0,.12)}
.logo b{font:800 22px/1 var(--f-display);letter-spacing:-.01em}
.logo span{display:block;font-size:13px;color:var(--muted);line-height:1.2}
.steps{display:flex;gap:6px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.steps li{display:flex;align-items:center;gap:7px;font:600 14px var(--f-display);color:var(--muted);padding:5px 12px 5px 6px;border-radius:99px;background:var(--surface);border:1px solid var(--line)}
.steps li i{font-style:normal;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;background:var(--surface-2);font-size:12px}
.steps li.on{color:var(--accent-ink);background:var(--accent);border-color:var(--accent)}
.steps li.on i{background:rgba(255,255,255,.55)}
.steps li.done i{background:var(--ok);color:#fff}

/* cards */
.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
.notebook{position:relative;padding:26px 26px 26px 46px;overflow:hidden}
.notebook:before{content:"";position:absolute;left:28px;top:0;bottom:0;width:2px;background:var(--margin);opacity:.55}

/* snap screen */
.snap-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:22px;align-items:start}
.hero h2{font-size:clamp(28px,4vw,40px);font-weight:800;letter-spacing:-.01em}
.hero p{margin:8px 0 18px;color:var(--muted);max-width:52ch}
.drop{display:grid;place-items:center;text-align:center;gap:6px;padding:30px 18px;border:2px dashed var(--rule);border-radius:14px;cursor:pointer;
  background:repeating-linear-gradient(transparent 0 29px,color-mix(in srgb,var(--rule) 45%,transparent) 29px 30px) var(--surface);transition:border-color .15s,background-color .15s}
.drop:hover,.drop.over{border-color:var(--link)}
.drop strong{font:700 20px var(--f-display)}
.drop .hint{font-size:14px;color:var(--muted)}
.drop .cam{width:54px;height:54px;border-radius:16px;background:var(--accent-soft);display:grid;place-items:center;color:var(--ink)}
.thumbs{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.thumb{position:relative;width:86px;height:110px;border-radius:10px;overflow:hidden;border:1px solid var(--line);background:var(--surface-2)}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb button{position:absolute;top:4px;right:4px;width:24px;height:24px;border-radius:50%;border:0;background:rgba(0,0,0,.6);color:#fff;cursor:pointer;line-height:1}
.thumb .tag{position:absolute;left:4px;bottom:4px;font-size:11px;background:rgba(0,0,0,.6);color:#fff;border-radius:6px;padding:0 5px}
label.lbl{display:block;font:600 14px var(--f-display);margin:16px 0 6px}
textarea,input[type=text]{width:100%;border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:var(--surface);resize:vertical}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);background:var(--surface);border-radius:12px;padding:10px 16px;font:600 16px var(--f-display);cursor:pointer;min-height:44px}
.btn:hover{border-color:var(--muted)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);box-shadow:inset 0 -3px 0 rgba(0,0,0,.14)}
.btn.primary:hover{filter:brightness(1.04)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.ghost{background:transparent;border-color:transparent;color:var(--link);padding-inline:8px}
.btn.big{font-size:18px;padding:12px 22px;min-height:52px}
.status{margin-top:14px;font-size:15px;display:flex;gap:10px;align-items:flex-start}
.status[hidden]{display:none}
.callout{border-radius:12px;padding:12px 14px;font-size:15px;margin-top:14px}
.callout.warn{background:var(--warn-soft);color:var(--ink);border:1px solid color-mix(in srgb,var(--warn) 35%,transparent)}
.callout.err{background:var(--err-soft);border:1px solid color-mix(in srgb,var(--err) 35%,transparent)}
.callout.ok{background:var(--ok-soft);border:1px solid color-mix(in srgb,var(--ok) 35%,transparent)}
.callout b{font-family:var(--f-display)}
.spinner{width:18px;height:18px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--link);animation:spin .8s linear infinite;flex:none;margin-top:3px}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion: reduce){.spinner{animation-duration:3s}}

.examples{margin-top:28px}
.examples h3{font-size:20px;margin-bottom:4px}
.ex-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:12px}
.ex{display:flex;flex-direction:column;text-align:left;padding:0;overflow:hidden;cursor:pointer;border-radius:14px;border:1px solid var(--line);background:var(--surface)}
.ex:hover{border-color:var(--link)}
.ex .ph{aspect-ratio:4/3;background:var(--surface-2) center top/cover no-repeat;border-bottom:1px solid var(--line)}
.ex .tx{padding:10px 12px 12px}
.ex .tx b{display:block;font:700 15px/1.2 var(--f-display)}
.ex .tx span{font-size:13px;color:var(--muted)}

.sample-side{position:sticky;top:16px}
.sample-side .cap{font:600 14px var(--f-display);color:var(--muted);margin:0 0 8px 4px}
.sample-side .cap b{color:var(--ink)}

/* paste text instead of a photo */
details.paste{margin-top:14px;border:1px solid var(--line);border-radius:12px;background:var(--surface);padding:0}
details.paste summary{cursor:pointer;padding:11px 14px;font:600 15px var(--f-display);list-style:none;display:flex;align-items:center;gap:8px}
details.paste summary::-webkit-details-marker{display:none}
details.paste summary:before{content:"+";display:grid;place-items:center;width:22px;height:22px;border-radius:7px;background:var(--surface-2);font:700 16px/1 var(--f-display);flex:none}
details.paste[open] summary:before{content:"−"}
details.paste textarea{display:block;margin:0;border:0;border-top:1px solid var(--line);border-radius:0 0 12px 12px;min-height:110px;font:400 16px/1.5 var(--f-body);
  background:repeating-linear-gradient(transparent 0 23px,color-mix(in srgb,var(--rule) 40%,transparent) 23px 24px) var(--surface);padding:10px 14px}
.pasted{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:14px 16px 16px 30px;position:relative;
  background:repeating-linear-gradient(transparent 0 25px,color-mix(in srgb,var(--rule) 45%,transparent) 25px 26px) var(--surface)}
.pasted:before{content:"";position:absolute;left:16px;top:0;bottom:0;width:2px;background:var(--margin);opacity:.5}
.pasted .lt{font:700 12px var(--f-display);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.pasted p{margin:6px 0 0;white-space:pre-wrap;font:400 16px/26px var(--f-kid);overflow-wrap:anywhere;max-height:420px;overflow:auto}
.ex .ph.txt{display:block;padding:10px 12px;font:400 12.5px/1.45 var(--f-kid);color:var(--ink);overflow:hidden;text-align:left;
  background:repeating-linear-gradient(transparent 0 17px,color-mix(in srgb,var(--rule) 45%,transparent) 17px 18px) var(--surface)}
.ex .ph.txt b{display:block;font:700 11px var(--f-display);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:2px}
.region{display:flex;align-items:center;gap:8px;margin-top:16px;font-size:14px;color:var(--muted)}
.region select{border:1px solid var(--line);border-radius:8px;padding:4px 8px;background:var(--surface);font-size:14px}
.tool-top{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-block:4px 18px}

/* check screen */
.check-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:22px;align-items:start}
.photo{position:sticky;top:16px;padding:12px}
.photo img{width:100%;border-radius:10px;display:block;border:1px solid var(--line)}
.photo .more{display:flex;gap:8px;margin-top:8px;overflow-x:auto}
.photo .more img{width:64px;height:84px;object-fit:cover;cursor:pointer}
.label{border:2px solid var(--ink);border-radius:14px;padding:4px 16px 10px;background:var(--surface);position:relative}
.label .lt{position:absolute;top:-12px;left:14px;background:var(--surface);padding:0 8px;font:700 13px var(--f-display);letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.label dl{display:grid;grid-template-columns:auto 1fr;gap:0 14px;margin:10px 0 0}
.label dt{font:600 14px var(--f-display);color:var(--muted);padding:7px 0;border-bottom:1px solid var(--rule)}
.label dd{margin:0;padding:7px 0;border-bottom:1px solid var(--rule);font:600 17px var(--f-kid);min-width:0;overflow-wrap:anywhere}
.label dl>*:nth-last-child(-n+2){border-bottom:0}
.skill{font-size:17px;margin:16px 0 0}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--surface-2);padding:4px 10px;border-radius:99px;font-size:14px}
.chip.fit{background:var(--ok-soft);border-color:transparent;color:var(--ok);font-weight:600}
.chip.fit.close{background:var(--accent-soft);color:var(--ink)}
.eyebrow{font:700 13px var(--f-display);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:22px 0 6px}
.from{display:flex;flex-wrap:wrap;gap:8px}
.from span{font:600 16px var(--f-kid);background:var(--surface-2);border-radius:8px;padding:4px 10px}
.qs{margin-top:20px;padding-top:6px;border-top:1px dashed var(--line)}
.tier{display:inline-flex;align-items:center;gap:8px;font:700 14px var(--f-display);background:var(--accent-soft);color:var(--ink);border-radius:99px;padding:4px 12px;margin-top:14px}
.q{margin-top:14px}
.q p{margin:0 0 8px;font:600 17px var(--f-display)}
.opts{display:flex;flex-wrap:wrap;gap:8px}
.opt{position:relative}
.opt input{position:absolute;opacity:0;inset:0;cursor:pointer}
.opt span{display:inline-flex;align-items:center;min-height:42px;padding:8px 14px;border-radius:12px;border:1.5px solid var(--line);background:var(--surface);font-size:15px;cursor:pointer}
.opt input:checked+span{border-color:var(--ink);background:var(--ink);color:var(--surface)}
.opt input:focus-visible+span{outline:3px solid var(--link);outline-offset:2px}
.controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin-top:20px}
.ctl label{display:block;font:600 14px var(--f-display);color:var(--muted);margin-bottom:6px}
.stepper{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--surface)}
.stepper button{width:44px;height:44px;border:0;background:var(--surface-2);font-size:22px;cursor:pointer}
.stepper output{min-width:56px;text-align:center;font:700 20px var(--f-display);font-variant-numeric:tabular-nums}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--surface)}
.seg label{margin:0;position:relative}
.seg input{position:absolute;opacity:0;inset:0}
.seg span{display:block;padding:10px 14px;font:600 15px var(--f-display);color:var(--muted);cursor:pointer}
.seg input:checked+span{background:var(--surface-2);color:var(--ink);box-shadow:inset 0 -3px 0 var(--accent)}
.seg input:focus-visible+span{outline:3px solid var(--link);outline-offset:-3px}
.switch{display:flex;align-items:center;gap:10px;font-size:15px;min-height:44px}
.switch input{width:20px;height:20px;accent-color:var(--ink)}
details.fix{margin-top:18px;border:1px solid var(--line);border-radius:12px;padding:10px 14px;background:var(--surface-2)}
details.fix summary{cursor:pointer;font:600 15px var(--f-display)}
.make-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:22px}

/* pages screen */
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:14px 16px;position:sticky;top:8px;z-index:5}
.toolbar h2{font-size:22px}
.toolbar .sub{font-size:14px;color:var(--muted)}
.notes{margin:14px 0 0;padding:0;list-style:none;display:grid;gap:6px}
.notes li{font-size:14px;color:var(--muted);padding-left:18px;position:relative}
.notes li:before{content:"";position:absolute;left:4px;top:.6em;width:6px;height:6px;border-radius:50%;background:var(--rule)}
.notes li.trust:before{background:var(--ok)}
.notes li.warn{color:var(--ink);background:var(--warn-soft);border-radius:10px;padding:8px 12px 8px 26px}
.notes li.warn:before{background:var(--warn);left:10px;top:1.05em}
.contract{display:grid;gap:8px;margin-top:16px;border:1.5px dashed var(--rule);border-radius:12px;padding:12px 14px;background:var(--surface)}
.contract>div{display:grid;grid-template-columns:120px 1fr;gap:12px;align-items:baseline}
.contract .k{font:700 13px var(--f-display);letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
.contract .v{font:500 16px/1.45 var(--f-body)}
.contract .tag{display:inline-block;font:700 12px var(--f-display);background:var(--ok-soft);color:var(--ok);border-radius:99px;padding:1px 8px;margin-left:4px;vertical-align:1px}
.contract .tag.warn{background:var(--warn-soft);color:var(--warn)}
@media (max-width:480px){.contract>div{grid-template-columns:1fr;gap:2px}}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px;margin-top:20px}
.frame{min-width:0}
.frame .lab{font:600 13px var(--f-display);color:var(--muted);margin:0 0 6px 2px}
.scaler{width:100%;aspect-ratio:var(--sheet-ar,794/1123);position:relative;overflow:hidden;border-radius:6px;box-shadow:var(--shadow);background:#fff}
.scaler>.sheet{position:absolute;top:0;left:0;transform-origin:top left}
.stage{position:absolute;left:-12000px;top:0;width:max-content}
.progress{height:6px;border-radius:99px;background:var(--surface-2);overflow:hidden;margin-top:12px}
.progress i{display:block;height:100%;width:0;background:var(--link);transition:width .3s}

@media (max-width:860px){
  .snap-grid,.check-grid{grid-template-columns:1fr}
  .sample-side,.photo{position:static}
  .ex-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .photo img{max-height:340px;object-fit:contain;background:var(--surface-2)}
}
@media (max-width:480px){
  .wrap{padding-inline:16px}
  .notebook{padding:20px 18px 20px 34px}
  .notebook:before{left:20px}
  .steps li{padding:4px 9px 4px 4px;font-size:13px}
  .toolbar{position:static}
}

/* ===================== WORKSHEET (printed paper: fixed palette, never themed) ===================== */
.sheet.paper-letter{width:816px;height:1056px}
.sheet{width:794px;height:1123px;background:#fff;color:#1E2433;font:400 17px/1.4 'Hind',system-ui,sans-serif;padding:42px 48px 34px;display:flex;flex-direction:column;overflow:hidden;color-scheme:light}
.sheet .sh-top{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;padding-bottom:12px;border-bottom:3px solid #1E2433}
.sheet .brand{display:flex;align-items:center;gap:7px;font:600 13px 'Baloo 2',sans-serif;color:#5B6475}
.sheet .brand i{width:13px;height:13px;border-radius:4px;background:var(--tint)}
.sheet .sh-t{font:700 34px/1.1 'Baloo 2','Hind',sans-serif;margin:4px 0 0;color:#1E2433;max-width:440px}
.sheet .sh-right{display:grid;gap:12px;width:250px;flex:none}
.sheet .fld{display:flex;align-items:flex-end;gap:8px;font-size:15px;color:#5B6475}
.sheet .fld b{flex:1;border-bottom:2px solid #1E2433;height:26px;font:700 19px/26px 'Andika','Hind',sans-serif;color:#1E2433;padding-left:6px;white-space:nowrap;overflow:hidden}
.sheet .adult{font:600 15px 'Baloo 2',sans-serif;color:#5B6475;text-align:right}
.sheet .instr{margin:16px 0 4px;background:var(--tint-soft);border-radius:12px;padding:11px 16px;font-size:17px;color:#1E2433}
.sheet .sh-body{flex:1;min-height:0;overflow:hidden;padding-top:14px}
.sheet .fitwrap{transform-origin:top left}
.sheet .sec+.sec{margin-top:18px}
.sheet .sec-h{font:700 18px 'Baloo 2','Hind',sans-serif;color:var(--tint);margin:0 0 10px}
.sheet .grid{display:grid;gap:14px}
.sheet .cell{position:relative;border:1.5px solid #E1E5EC;border-radius:14px;padding:14px 16px 14px 46px;min-height:58px;display:flex;align-items:center;break-inside:avoid}
.sheet .cell .no{position:absolute;left:12px;top:14px;width:24px;height:24px;border-radius:50%;background:var(--tint-soft);color:var(--tint);font:700 13px/24px 'Baloo 2',sans-serif;text-align:center}
.sheet .cell .body{min-width:0;width:100%}
.sheet .bx{display:inline-block;vertical-align:middle;width:44px;height:38px;border:2px solid #2B3245;border-radius:9px;background:#fff}
.sheet .bx.w2{width:58px;height:46px}
.sheet .bx.w3{width:90px;height:46px}
.sheet .bx.big{width:64px;height:52px}
.sheet .eq{font:600 24px/1.2 'Baloo 2',sans-serif;color:#1E2433;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.sheet .eq.big{font-size:30px;gap:10px}
.sheet .gap{display:inline-block;width:16px}
/* make-10 cherries */
.sheet .f-make10_bond{padding:16px 16px 14px 46px;align-items:flex-start}
.sheet .f-make10_bond .eq.big{margin-bottom:76px}
.sheet .bnum{position:relative;display:inline-block}
.sheet img{max-width:none;display:block}
.sheet .bnum .cherry{position:absolute;top:100%;left:50%;margin-left:-42px;margin-top:2px}
.sheet .steps{font:600 18px 'Baloo 2',sans-serif;display:flex;align-items:center;gap:6px;flex-wrap:wrap;color:#1E2433}
.sheet .steps .bx{width:40px;height:34px}
/* column sums */
.sheet .colsum{display:grid;font:600 32px/1 'Baloo 2',sans-serif;justify-content:center;margin:0 auto}
.sheet .crow{display:grid;grid-template-columns:repeat(var(--w),34px);justify-items:center;align-items:center;height:42px}
.sheet .crow.heads{height:22px;font:700 14px 'Baloo 2',sans-serif;color:#7A8296}
.sheet .crow.ans{border-top:3px solid #1E2433;height:56px;padding-top:4px}
.sheet .crow.ans .bx{width:30px;height:40px;border-radius:7px}
.sheet .f-column_sums{padding:12px 10px 12px 40px;justify-content:center}
.sheet .f-column_sums .no{left:8px;top:10px}
/* number line, sequence, compare, objects, frames, blocks, clock */
.sheet .nl{display:grid;gap:4px}
.sheet .nl .nline{max-width:100%;height:auto}
.sheet .seq{display:flex;gap:10px;flex-wrap:wrap}
.sheet .sq{width:62px;height:50px;border:2px solid #2B3245;border-radius:10px;display:grid;place-items:center;font:600 24px 'Baloo 2',sans-serif}
.sheet .sq.empty{border-style:dashed;background:#FAFBFD}
.sheet .ring{display:inline-block;width:46px;height:46px;border:2px solid #2B3245;border-radius:50%}
.sheet .cnt,.sheet .tf,.sheet .pv,.sheet .clk{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.sheet .clk{flex-direction:column;gap:8px}
.sheet .f-clock_time{justify-content:center;padding-left:16px}
.sheet .pv .eq{font-size:22px}
/* words */
.sheet .sent{font:400 21px/1.5 'Andika','Hind',sans-serif;color:#1E2433}
.sheet .sent.big2{font-size:24px;line-height:1.6}
.sheet .blank{display:inline-block;width:130px;border-bottom:2px solid #1E2433;height:1.1em;vertical-align:baseline;margin:0 4px}
.sheet .bank{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 12px;padding:10px 12px;border:1.5px dashed var(--tint);border-radius:12px}
.sheet .bank span{font:700 17px 'Andika','Hind',sans-serif;background:var(--tint-soft);border-radius:8px;padding:2px 10px}
.sheet .mcq .q,.sheet .sa .q,.sheet .ms .q{font:400 20px/1.45 'Andika','Hind',sans-serif;margin-bottom:8px}
.sheet .opts{display:flex;flex-wrap:wrap;gap:10px}
.sheet .opt{display:inline-flex;align-items:center;gap:8px;font:400 19px 'Andika','Hind',sans-serif;border:1.5px solid #C9CFDA;border-radius:10px;padding:4px 12px}
.sheet .opt i{width:18px;height:18px;border:2px solid #2B3245;border-radius:5px;display:inline-block}
.sheet .tfq{display:flex;justify-content:space-between;align-items:center;gap:14px;width:100%}
.sheet .tfq .sent{font-size:19px}
.sheet .tfq .opts{flex:none}
.sheet .wline{height:40px;border-bottom:2px solid #9AA3B5;margin-top:6px}
.sheet .match{display:grid;grid-template-columns:1fr 1fr;gap:56px;width:100%}
.sheet .mleft,.sheet .mright{display:flex;align-items:center;gap:10px;font:400 19px/1.3 'Andika','Hind',sans-serif;min-height:50px;padding:4px 0}
.sheet .mleft{justify-content:flex-end;text-align:right}
.sheet .mleft b,.sheet .mright b{font-family:'Baloo 2',sans-serif;color:var(--tint)}
.sheet .dot{width:12px;height:12px;border-radius:50%;background:#1E2433;flex:none}
.sheet .f-match,.sheet .f-sort_groups{padding-left:16px}
.sheet .f-match .no,.sheet .f-sort_groups .no{display:none}
.sheet .ml{display:flex;gap:6px;align-items:flex-end;flex-wrap:wrap}
.sheet .ml .lt{font:400 38px/1 'Andika','Hind',sans-serif;min-width:30px;text-align:center}
.sheet .ml .lb{width:44px;height:48px;border:2px solid #2B3245;border-radius:9px;background:#fff}
.sheet .uns .tiles{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:4px}
.sheet .uns .tiles span{min-width:38px;height:42px;border:2px solid var(--tint);background:var(--tint-soft);border-radius:9px;display:grid;place-items:center;font:700 24px 'Andika','Hind',sans-serif;padding:0 8px}
.sheet .uns .tiles.words span{font-size:19px;font-weight:400}
.sheet .uns{width:100%}
.sheet .sortg{width:100%}
.sheet .gcols{display:grid;gap:14px}
.sheet .gcol{border:1.5px solid #E1E5EC;border-radius:12px;padding:8px 12px}
.sheet .gcol .wline{height:46px}
.sheet .gh{font:700 18px 'Baloo 2','Hind',sans-serif;color:var(--tint);text-align:center;border-bottom:2px solid var(--tint-soft);padding-bottom:4px}
.sheet .trace{width:100%;display:grid;gap:8px}
.sheet .guide{height:64px;position:relative;border-top:1.5px solid #9AA3B5;border-bottom:1.5px solid #9AA3B5;
  background:linear-gradient(transparent 31px,#D5DAE3 31px,#D5DAE3 32px,transparent 32px);display:flex;align-items:center;gap:36px;padding-left:8px}
.sheet .guide.tr span{font:400 46px/1 'Andika',sans-serif;color:#C3C9D4;letter-spacing:0}
.sheet .trace.deva .guide.tr span{font-family:'Hind',sans-serif;font-size:40px}
.sheet .ms,.sheet .sa{width:100%}
.sheet .ms .chip{font:700 22px 'Andika','Hind',sans-serif;background:var(--tint-soft);color:#1E2433;border-radius:10px;padding:2px 14px}
.sheet .wp{width:100%}
.sheet .wp p{margin:0 0 10px;font:400 20px/1.5 'Andika','Hind',sans-serif}
.sheet .wp-work{display:flex;align-items:center;justify-content:flex-end;gap:10px}
.sheet .wp-work .lbl{font:600 16px 'Baloo 2',sans-serif;color:#5B6475}
.sheet .dict{width:100%}
.sheet .dict .wline{margin-top:10px}
.sheet .f-dictation{min-height:64px}
/* pre-school: numeral tracing rows, colour-N groups */
.sheet .f-trace_numbers,.sheet .f-count_colour{padding:10px 12px;justify-content:center}
.sheet .f-trace_numbers .no,.sheet .f-count_colour .no{display:none}
.sheet .trow{display:flex;gap:8px;justify-content:center}
.sheet .tbox{height:118px;border:1.5px solid #B9D0EA;border-radius:6px;display:flex;align-items:center;justify-content:center;flex:none;
  background:linear-gradient(transparent 58px,#DCE7F4 58px,#DCE7F4 59px,transparent 59px)}
.sheet .colr{width:100%}
.sheet .colr-h{font:600 24px 'Baloo 2','Hind',sans-serif;margin-bottom:10px;color:#1E2433}
.sheet .colr-h b{font-size:34px;color:var(--tint);margin:0 4px}
.sheet .colr-pics{display:flex;flex-wrap:wrap;gap:18px 20px;justify-content:center;padding:6px 0}
/* custom (AI-rebuilt) pages */
.sheet .custom{font:400 19px/1.45 'Andika','Hind',sans-serif}
.sheet .custom .row{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.sheet .custom .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.sheet .custom .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.sheet .custom .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.sheet .custom .big{font-size:28px}
.sheet .custom .muted{color:#5B6475}
.sheet .custom .center{text-align:center}
.sheet .custom table{border-collapse:collapse}
.sheet .custom td,.sheet .custom th{border:1.5px solid #C9CFDA;padding:6px 10px}
/* answer key */
.sheet.key .kgrid{display:grid;grid-template-columns:1fr 1fr;gap:16px 24px}
.sheet.key .kblock{border:1.5px solid #E1E5EC;border-radius:12px;padding:10px 14px;break-inside:avoid}
.sheet.key h3{font:700 18px 'Baloo 2',sans-serif;color:var(--tint);margin:0 0 4px}
.sheet.key .kn{font:600 13px 'Baloo 2',sans-serif;color:#7A8296;margin-top:6px}
.sheet.key ol{margin:0;padding-left:24px;font:400 15px/1.45 'Hind',sans-serif;columns:2;column-gap:18px}
.sheet.key li{break-inside:avoid}
.sheet .sh-foot{display:flex;justify-content:space-between;gap:16px;border-top:1.5px solid #E1E5EC;padding-top:10px;font-size:13px;color:#7A8296;margin-top:12px}
/* reading passage + questions (one per page) */
.sheet .f-reading_passage{padding:6px 4px;align-items:flex-start;border:0}
.sheet .f-reading_passage .no{display:none}
.sheet .rp{width:100%}
.sheet .rp-t{font:700 28px 'Baloo 2','Hind',sans-serif;margin:0 0 10px;color:#1E2433;text-align:center}
.sheet .rp-story{border:2px solid var(--tint);border-radius:14px;padding:14px 22px;font:400 22px/1.7 'Andika','Hind',sans-serif;color:#1E2433}
.sheet .rp-story p{margin:0 0 6px}
.sheet .rp-story p:last-child{margin:0}
.sheet .rp-qs{display:grid;gap:14px;margin-top:20px}
.sheet .rq .q{font:400 20px/1.45 'Andika','Hind',sans-serif;margin-bottom:6px}
.sheet .rq .q b{font-family:'Baloo 2',sans-serif;color:var(--tint);margin-right:4px}
.sheet .rq .wline{margin-top:2px}
/* count the pictures, circle the right number (pre-school) */
.sheet .f-count_circle{padding:14px 14px 16px;flex-direction:column;align-items:stretch;justify-content:space-between}
.sheet .f-count_circle .no{display:none}
.sheet .ccb{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:space-between;gap:14px}
.sheet .cc-pics{width:100%;display:flex;justify-content:center;flex:1;align-items:center}
.sheet .cc-pics img{width:100%;max-width:330px;height:auto}
.sheet .cc-opts{display:flex;justify-content:space-around;width:100%;font:600 50px/1 'Baloo 2',sans-serif;color:#1E2433}
.sheet .cc-opts span{min-width:64px;text-align:center}
/* rebuilt pages: the building blocks the rebuild prompt may use */
.sheet .custom .box{border:1.5px solid #E1E5EC;border-radius:14px;padding:14px 16px;display:flex;flex-direction:column;align-items:center;gap:12px;break-inside:avoid}
.sheet .custom .grid-2,.sheet .custom .grid-3,.sheet .custom .grid-4{align-items:stretch}
.sheet .custom .huge{font-size:44px;font-family:'Baloo 2','Hind',sans-serif;font-weight:600}
.sheet .custom .pics{display:flex;justify-content:center;width:100%}
.sheet .custom .pics img{width:100%;max-width:300px;height:auto}
.sheet .custom .pic{display:inline-flex;vertical-align:middle}
.sheet .custom .choices{display:flex;justify-content:space-around;width:100%;font:600 46px/1 'Baloo 2',sans-serif;color:#1E2433}
.sheet .custom .choices span{min-width:60px;text-align:center}
.sheet .custom .ticks{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.sheet .custom .ticks span{display:inline-flex;align-items:center;gap:8px;border:1.5px solid #C9CFDA;border-radius:10px;padding:4px 12px;font-size:19px}
.sheet .custom .ticks span:before{content:"";width:18px;height:18px;border:2px solid #2B3245;border-radius:5px}
.sheet .custom .trace{font:400 44px/1.2 'Andika','Hind',sans-serif;color:#C3C9D4;letter-spacing:2px}
.sheet .custom .nline{display:block;width:100%}
.sheet .custom .nline img{width:100%;height:auto}
.sheet .custom .match2{display:grid;grid-template-columns:1fr 1fr;gap:80px;width:100%}
.sheet .custom .match2>div{display:grid;gap:14px}
.sheet .custom .match2 p{margin:0;display:flex;align-items:center;gap:10px;min-height:44px;font-size:20px}
.sheet .custom .match2>div:first-child p{justify-content:flex-end}
.sheet .custom .match2>div:first-child p:after,.sheet .custom .match2>div:last-child p:before{content:"";width:12px;height:12px;border-radius:50%;background:#1E2433;flex:none}
/* handwriting rows (letters, numbers, short words) */
.sheet .hw{display:block;width:100%;margin:2px 0}
.sheet .hw img,.sheet .hwt img{width:100%;height:auto}
.sheet .trace.hwt{display:grid;gap:4px}