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8px}.bank-pad-lines{margin:0;padding:0;list-style:none}.bank-pad .pad-line{border:none;border-bottom:1px solid var(--line-2);min-width:0;color:var(--c-ink);font:inherit;font-family:var(--mono);background:0 0;flex:auto;padding:7px 6px;font-size:16px}.bank-pad .pad-mark{text-align:center;flex:none;width:1.2em}.bank-pad .pad-note{border-inline-start:2px solid var(--line);margin:2px 0 6px;margin-inline-start:2em;padding-inline-start:8px;font-size:13px}.bank-pad-answer{color:var(--c-accent-ink);border-inline-start-color:var(--c-accent)!important}.bank-pad .given-add{margin:8px 0 0}.bank-root .pad-status{text-align:start;max-width:100%;margin-inline-start:0;padding:2px 6px 6px}.bank-verdict{min-height:1.4em;color:var(--soft);margin:10px 2px;font-size:14px}.bank-verdict.ok{color:var(--c-accent-ink);font-weight:500}.bank-hint{border-inline-start:2px solid var(--c-highlight);border-radius:0 var(--r-sm) var(--r-sm) 0;background:var(--note-bg);margin:8px 0;padding:10px 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0;font-size:13px;line-height:1.6}.formula-use,.formula-all{border-radius:var(--r-xs);box-shadow:inset 0 0 0 1px var(--line);color:var(--c-ink);font:inherit;cursor:pointer;background:0 0;margin-top:8px;padding:3px 10px;font-size:12px;font-weight:500}.formula-all{border:1px dashed var(--handle);box-shadow:none;font-size:13px}.formula-use:hover{background:var(--c-ink);box-shadow:none;color:var(--on-ink)}.formula-search{border-radius:var(--r-sm);background:var(--field);box-shadow:inset 0 0 0 1px var(--line);color:var(--c-ink);font:inherit;border:0;margin:10px 12px 4px;padding:8px 10px;font-size:14px}.formula-search:focus{box-shadow:inset 0 0 0 1px var(--c-accent);outline:none}.formula-empty{color:var(--soft);padding:14px 2px;font-size:14px}.formula-side{top:0;bottom:0;z-index:135;border-inline-end:1px solid var(--line);background:var(--win);width:min(340px,86vw);box-shadow:var(--shadow-pop);transform:translateX(var(--formula-off,-105%));transition:transform .6s 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.formula-name{font-size:14px}.trk-wrap{max-width:660px;margin:0 auto;padding:26px 22px 84px}.trk-strip{align-items:center;gap:12px;margin-bottom:20px;display:flex}.trk-bar{background:var(--line);border-radius:2px;flex:auto;height:2px;overflow:hidden}.trk-bar i{background:var(--c-accent);height:100%;transition:width .6s var(--out);border-radius:2px;display:block}.trk-count{color:var(--faint);font:12px var(--mono)}.trk-card{box-shadow:var(--shadow-win);animation:rise-in .5s var(--out);padding:28px 28px 24px}.trk-h{letter-spacing:-.035em;margin:0 0 14px;font-size:clamp(22px,2.6vw,28px);font-weight:420}.trk-h:focus{outline:none}.trk-p{color:var(--soft);margin:0 0 12px;font-size:17px;line-height:1.75}.trk-p strong,.trk-p b{color:var(--c-ink);font-weight:500}.trk-ask{letter-spacing:-.02em;margin:6px 0 16px;font-size:clamp(19px,2.4vw,23px);font-weight:500}.trk-cap,.trk-note{color:var(--soft);margin:10px 0 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var(--out);flex-wrap:wrap;align-items:center;gap:8px;padding:11px 14px;font-size:15.5px;display:flex}.trk-good{border-inline-start:2px solid var(--c-accent);background:var(--c-accent-soft);color:var(--c-ink);font-weight:500}.trk-good:before{content:"✓";color:var(--c-accent-ink);animation:tick-in .45s var(--out)}.trk-bad{border-inline-start:2px solid var(--c-error);background:var(--c-error-soft);color:var(--c-ink);animation:rise-in .4s var(--out), nudge .45s var(--out)}.trk-bad:before{content:"✗";color:var(--c-error-ink)}.trk-bad b{font-weight:600}.trk-hint{border-inline-start:2px solid var(--c-highlight);border-radius:0 var(--r-sm) var(--r-sm) 0;background:var(--note-bg);color:var(--c-ink);animation:rise-in .4s var(--out);padding:11px 14px;font-size:15px;line-height:1.7}.trk-hint b{color:var(--note-ink);font:500 11.5px var(--mono);letter-spacing:0;margin-bottom:3px;display:block}.trk-fixed{color:var(--c-accent-ink);font-weight:500}.trk-open .trk-h{margin-bottom:20px}.trk-choice{border-radius:var(--r-md);background:var(--sheet);width:100%;box-shadow:inset 0 0 0 1px var(--line);color:var(--c-ink);text-align:start;transition:box-shadow .3s, background .3s, transform .4s var(--out);margin-bottom:10px;padding:16px 18px;font-size:16.5px;font-weight:500;display:block}.trk-choice:hover{background:var(--c-accent-soft);box-shadow:inset 0 0 0 1px var(--c-accent);color:var(--c-ink);transform:translateY(-1px)}.trk-end .trk-h{margin-bottom:10px}@media (max-width:640px){.home-root,.set-root,.bank-root,.trk-root,.formulas-root{bottom:56px;left:0}.formula-side{width:100vw;bottom:56px}.bank-wrap,.formulas-wrap{padding:16px 16px 40px}}@media (max-width:560px){.home-wrap{padding:18px 16px 70px}.home-hero{padding:20px 16px}.trk-wrap{padding:16px 16px 80px}.trk-card{padding:20px 16px 18px}.trk-go{padding:10px 16px}}@media (max-width:520px){.bank-grid{grid-template-columns:1fr}.draft-thumb{flex:100%}}
.math-slot math-field.mf,math-field.pad-line,.trk-in math-field{--caret-color:var(--c-error);--selection-background-color:var(--c-accent-soft);--selection-color:var(--c-ink);--contains-highlight-background-color:transparent;--placeholder-color:var(--faint);--smart-fence-color:var(--faint);color:var(--c-ink)}.math-slot math-field.mf{background:0 0;border:none;border-bottom:1px solid #0000;border-radius:0;outline:none;flex:auto;min-width:0;padding:5px 6px;font-size:19px;display:block}.math-slot math-field.mf:focus-within{border-bottom-color:var(--line);background:var(--sheet)}.math-slot math-field.mf::part(menu-toggle){display:none}.math-slot math-field.mf::part(virtual-keyboard-toggle){color:var(--faint)}.math-slot math-field.mf::part(virtual-keyboard-toggle):hover{color:var(--c-ink)}