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env(safe-area-inset-bottom,0px));flex-direction:column;gap:8px;display:flex;position:sticky;bottom:0}.when{opacity:.8;margin-left:6px;font-size:14px;font-weight:400}.grades{grid-auto-columns:1fr;grid-auto-flow:column;gap:8px;display:grid}.grade{border-radius:var(--radius);border:1px solid var(--line);background:var(--surface);flex-direction:column;align-items:center;gap:2px;padding:12px 4px;font-weight:600;display:flex}.grade span{color:var(--muted);font-variant-numeric:tabular-nums;font-size:12px;font-weight:400}.grade.again{color:var(--wrong)}.grade.hard{color:var(--hard)}.grade.good{color:var(--right)}.grade.easy{color:var(--tape)}.sheet-backdrop{z-index:10;background:#0006;justify-content:center;align-items:flex-end;display:flex;position:fixed;inset:0}.sheet{background:var(--surface);width:100%;max-width:640px;padding:20px 18px calc(20px + env(safe-area-inset-bottom,0px));border-radius:16px 16px 0 0;animation:.2s ease-out rise}.toast{left:50%;bottom:calc(96px + env(safe-area-inset-bottom,0px));background:var(--ink);color:var(--bg);z-index:20;white-space:nowrap;border-radius:999px;padding:10px 16px;font-size:14px;position:fixed;transform:translate(-50%)}.done{padding-block:64px 32px}@keyframes rise{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}.tag.practice{color:var(--tape);border-color:var(--tape);background:var(--tape-soft)}.secondary{background:var(--surface);color:var(--tape);border:1px solid var(--tape);border-radius:var(--radius);width:100%;padding:12px 18px;font-weight:600}.chips{flex-wrap:wrap;gap:8px;display:flex}.chip{border:1px solid var(--line);background:var(--surface);color:var(--ink);text-align:left;border-radius:999px;padding:7px 12px;font-size:14px}.chip[aria-pressed=true]{background:var(--tape);border-color:var(--tape);color:var(--tape-ink)}.chip-code{font-variant-numeric:tabular-nums;opacity:.8;font-weight:600}.verdict.partial{color:var(--hard)}.option.selected{border-color:var(--tape);background:var(--tape-soft)}.option.missed{border-color:var(--hard);border-style:dashed}.option.check .box{border:1.5px solid var(--line);width:22px;height:22px;color:var(--tape-ink);border-radius:5px;flex:none;place-items:center;margin-top:1px;font-size:14px;font-weight:700;display:grid}.option.check.selected .box,.option.check.right .box,.option.check.wrong .box{background:var(--tape);border-color:var(--tape)}.option.check.right .box{background:var(--right);border-color:var(--right)}.option.check.wrong .box{background:var(--wrong);border-color:var(--wrong)}.missed-note{color:var(--hard);font-size:13px;font-style:normal}.tf{grid-template-columns:1fr 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var(--tape);outline-offset:2px}.affix{color:var(--muted);font-size:20px}.sequence{flex-direction:column;gap:8px;min-height:44px;margin:0;padding:0;list-style:none;display:flex}.sequence .slot{border:1px dashed var(--line);border-radius:var(--radius);text-align:center;padding:12px}.option.seq .opt-id{color:var(--tape)}.pool{border-top:1px solid var(--line);padding-top:12px}.solution{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px}.solution ol{flex-direction:column;gap:4px;margin:6px 0 0;padding-left:20px;display:flex}.match,.sort{flex-direction:column;gap:12px;margin:0;padding:0;list-style:none;display:flex}.match li,.sort li{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);flex-direction:column;gap:8px;padding:12px;display:flex}.match li.right,.sort li.right{border-color:var(--right)}.match li.wrong,.sort li.wrong{border-color:var(--wrong)}.match select{font:inherit;border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:8px;width:100%;padding:10px;font-size:16px}.fix{color:var(--wrong);font-size:14px}.sort-text{font-weight:500}.chip.answer{outline:2px solid var(--right);outline-offset:1px}.row.split{flex-wrap:wrap;justify-content:space-between}.small-btn{color:var(--tape);padding:6px 4px;font-size:14px}