.sm{max-width:1040px;margin:0 auto;padding:20px var(--gutter) 96px;color:var(--text)}.sm *,.sm :after,.sm :before{box-sizing:border-box}.sm [id]{scroll-margin-top:84px}.sm button{font-family:inherit;cursor:pointer}.sm button:disabled{cursor:not-allowed;opacity:.55}.sm :focus-visible{outline:3px solid var(--focus);outline-offset:2px}:where(.sm) h1,:where(.sm) h2,:where(.sm) h3{font-family:var(--font-display);margin:0;letter-spacing:-.01em}:where(.sm) p{margin:0}.sm-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:2px solid var(--ink);border-radius:var(--radius);padding:13px 20px;font-weight:800;font-size:1rem;background:var(--primary);color:var(--on-primary);box-shadow:4px 4px 0 var(--ink);transition:transform var(--t-fast) var(--ease-out),box-shadow var(--t-fast) var(--ease-out);text-decoration:none}.sm-btn:hover:not(:disabled){transform:translate(-1px,-1px);box-shadow:6px 6px 0 var(--ink)}.sm-btn:active:not(:disabled){transform:translate(3px,3px);box-shadow:1px 1px 0 var(--ink)}.sm-btn.hl{background:var(--hl);color:var(--on-hl)}.sm-btn.ghost{background:var(--surface);color:var(--text);box-shadow:none;border-color:var(--border)}.sm-btn.ghost:hover:not(:disabled){border-color:var(--ink);box-shadow:none;transform:none}.sm-btn.block{width:100%}.sm-btn.sm{padding:9px 14px;font-size:.88rem;box-shadow:3px 3px 0 var(--ink)}.sm-link{background:none;border:0;color:var(--link);font-weight:700;padding:6px 0;text-decoration:underline;text-underline-offset:3px}.sm-card{background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius-lg);padding:22px}.sm-eyebrow{font-size:.72rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:var(--text-muted)}.sm-muted{font-size:.92rem;line-height:1.55}.sm-muted,.sm-pill{color:var(--text-secondary)}.sm-pill{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:var(--radius-full);font-size:.76rem;font-weight:700;background:var(--surface-2);border:1px solid var(--border)}.sm-pill.ink{background:var(--ink);color:var(--on-ink);border-color:var(--ink)}.sm-pill.ai{background:rgba(124,58,237,.12);color:#7C3AED;border-color:rgba(124,58,237,.35)}[data-theme=dark] .sm-pill.ai{color:#B79CFF}.sm-player{display:grid;grid-template-columns:1fr auto;grid-gap:16px 24px;gap:16px 24px;align-items:center;background:var(--ink);color:var(--on-ink);border-radius:var(--radius-lg);padding:20px 22px;margin-bottom:18px}.sm-player .lvl{font-family:var(--font-display);font-size:1.35rem;font-weight:800}.sm-player .xpbar{height:8px;background:rgba(255,255,255,.18);border-radius:99px;overflow:hidden;margin:10px 0 6px}[data-theme=dark] .sm-player{background:var(--surface-2);color:var(--text);border:1.5px solid var(--border)}[data-theme=dark] .sm-player .xpbar{background:var(--border)}.sm-player 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p{font-size:.95rem;line-height:1.5;max-width:52ch}.sm-daily .done{display:inline-flex;align-items:center;gap:8px;font-weight:800}.sm-daily .sm-btn{background:var(--ink);color:var(--on-ink);box-shadow:4px 4px 0 rgba(18,22,58,.35)}@media (max-width:620px){.sm-daily{grid-template-columns:1fr}}.sm-modes{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));grid-gap:14px;gap:14px;margin-bottom:32px}.sm-mode{text-align:left;background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius-lg);padding:18px;display:flex;flex-direction:column;gap:6px;color:var(--text);transition:border-color var(--t-fast),transform var(--t-fast) var(--ease-out)}.sm-mode:hover:not(:disabled){border-color:var(--ink);transform:translateY(-2px)}.sm-mode .ic{font-size:1.5rem}.sm-mode b{font-family:var(--font-display);font-size:1.05rem}.sm-mode 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1fr;grid-gap:12px;gap:12px}.sm-ce .sm-opt{justify-content:center;align-items:center;font-weight:800;font-size:1.1rem;padding:18px}.sm-expl{margin-top:18px;padding:16px 18px;border-radius:var(--radius);border:2px solid;line-height:1.65;animation:sm-in .35s var(--ease-out)}.sm-expl.ok{border-color:var(--success);background:var(--success-soft)}.sm-expl.no{border-color:var(--accent);background:rgba(201,53,37,.07)}.sm-expl b.t{display:block;margin-bottom:6px;font-family:var(--font-display)}.sm-expl.ok b.t{color:var(--success)}.sm-expl.no b.t{color:var(--accent)}.sm-expl p{font-size:.93rem;color:var(--text)}.sm-expl .src{margin-top:8px;font-size:.78rem;color:var(--text-muted);font-weight:700}.sm-q-foot{display:flex;gap:10px;justify-content:space-between;align-items:center;margin-top:18px;flex-wrap:wrap}.sm-q-foot .sm-link.flagged{color:#8a6a00}[data-theme=dark] .sm-q-foot .sm-link.flagged{color:var(--hl)}.sm-keys{margin-top:14px;font-size:.74rem;color:var(--text-muted);text-align:center}.sm-keys kbd{background:var(--surface-3);border:1px solid var(--border);border-radius:5px;padding:1px 6px;font-family:inherit;font-weight:700}@media (hover:none){.sm-keys{display:none}}.sm-toast{position:fixed;top:calc(var(--header-h) + 14px);left:50%;transform:translateX(-50%);z-index:50;background:var(--ink);color:var(--on-ink);border:2px solid var(--hl);border-radius:var(--radius-full);padding:10px 22px;font-weight:800;animation:sm-pop .35s var(--ease-spring);white-space:nowrap}[data-theme=dark] .sm-toast{background:var(--hl);color:var(--on-hl);border-color:var(--ink)}.sm-modal{position:fixed;inset:0;z-index:60;background:rgba(10,13,36,.62);display:grid;place-items:center;padding:20px}.sm-modal>div{background:var(--surface);border:2px solid var(--ink);border-radius:var(--radius-lg);padding:24px;max-width:420px;width:100%;box-shadow:8px 8px 0 var(--ink)}.sm-modal h3{margin-bottom:8px;font-size:1.2rem}.sm-modal .row{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}.sm-modal .row>*{flex:1 1}.sm-res{max-width:820px;margin:0 auto}.sm-hero{background:var(--ink);color:var(--on-ink);border-radius:var(--radius-xl);padding:32px 24px;text-align:center;margin-bottom:18px;position:relative;overflow:hidden}[data-theme=dark] .sm-hero{background:var(--surface-2);color:var(--text);border:1.5px solid var(--border)}.sm-ring{width:168px;height:168px;margin:0 auto 10px;position:relative}.sm-ring svg{transform:rotate(-90deg)}.sm-ring .n{position:absolute;inset:0;display:grid;place-items:center;font-family:var(--font-display);font-weight:800;font-size:2.6rem;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.sm-hero h1{font-size:clamp(1.3rem,3.6vw,1.8rem);font-weight:800}.sm-hero p{opacity:.85;margin-top:6px;font-size:.95rem}.sm-hero 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b{font-family:var(--font-display)}.sm-block{margin-bottom:18px}.sm-block>h2{font-size:1.1rem;font-weight:800;margin-bottom:12px}.sm-tabs{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}.sm-rev{border:1.5px solid var(--border);border-radius:var(--radius);padding:14px 16px;margin-bottom:10px;background:var(--surface)}.sm-rev.no{border-left:5px solid var(--accent)}.sm-rev.ok{border-left:5px solid var(--success)}.sm-rev.skip{border-left:5px solid var(--text-muted)}.sm-rev .q{font-family:var(--font-read);line-height:1.6;font-size:.98rem;margin:6px 0 10px}.sm-rev .a{font-size:.87rem;line-height:1.5;margin-top:3px}.sm-rev .a.r{color:var(--success);font-weight:700}.sm-rev .a.w{color:var(--accent);font-weight:700}.sm-rev .e{margin-top:10px;font-size:.87rem;color:var(--text-secondary);line-height:1.6}.sm-tutor{background:var(--surface-2);border:1.5px solid var(--border);border-radius:var(--radius-lg);padding:20px}.sm-tutor p{line-height:1.7;font-size:.95rem;white-space:pre-line}.sm-actions{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));grid-gap:12px;gap:12px;margin-top:8px}.sm-mail{display:flex;gap:10px;flex-wrap:wrap}.sm-mail input{flex:1 1;min-width:190px;padding:12px 14px;border:2px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);font:inherit}.sm-mail input:focus{border-color:var(--primary);outline:none}.sm-loading{text-align:center;padding:80px 20px}.sm-loading .dots{display:inline-flex;gap:8px;margin-bottom:14px}.sm-loading .dots i{width:16px;height:16px;border-radius:50%;border:2px solid var(--ink);animation:sm-fill 1.2s infinite}.sm-loading .dots i:nth-child(2){animation-delay:.15s}.sm-loading .dots i:nth-child(3){animation-delay:.3s}.sm-loading .dots i:nth-child(4){animation-delay:.45s}@keyframes sm-pulse{50%{opacity:.55}}@keyframes sm-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}@keyframes 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