.ng-page{--ng-ink:#244caf;--ng-deep:#1c3576;--ng-blue:#e1edfa;--ng-mid:#b6ceec;--ng-line:#b6c5cb;--ng-text:#3e554d;--ng-nav-height:58px;scrollbar-color:#7694a6 var(--paper);overflow-x:clip}.ng-page [hidden]{display:none!important}.ng-page h1,.ng-page h2,.ng-page h3{letter-spacing:-.035em;text-wrap:balance;font-family:Bricolage,Outfit,sans-serif;font-weight:600}.ng-page h2{font-size:clamp(2.2rem,3.6vw,3.5rem);line-height:1.06}.ng-page h3{font-size:1.25rem;line-height:1.3}.ng-page p{line-height:1.65}.ng-page button{color:inherit;cursor:pointer}.ng-page button:disabled{opacity:.4;cursor:default}.ng-page :is(a,button,input,summary):focus-visible{outline-offset:4px;outline:3px solid #986022}.ng-page :is(h1,h2,h3,main):focus{outline:none}.ng-page ::selection{background:var(--ng-ink);color:#fffdf0}.ng-page button,.ng-page a{-webkit-tap-highlight-color:#b6ceec80}.ng-page svg{fill:none;stroke:currentColor;stroke-width:1.7px;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;width:22px;height:22px}.ng-page .brand-icon{fill:currentColor}.ng-js,.ng-stage{display:none}.ng-ready .ng-js{display:flex}.ng-header{justify-content:space-between;align-items:center;gap:16px;width:min(100% - 48px,1296px);min-height:78px;margin:auto;display:flex}.ng-brand{letter-spacing:-.03em;align-items:center;gap:9px;min-height:44px;font:800 1.25rem/1 Bricolage,sans-serif;text-decoration:none;display:inline-flex}.ng-header-play{align-items:center;gap:18px;min-height:44px;font-size:.9rem;text-decoration:none;display:inline-flex}.ng-header-play:hover{text-decoration:underline}.ng-opening{grid-template-columns:1.05fr 1fr;align-items:center;gap:clamp(40px,7vw,100px);width:min(100% - 64px,1240px);min-height:min(790px,100svh - 78px);margin:auto;padding:60px 0 90px;display:grid}.ng-opening h1{text-wrap:initial;font-size:clamp(3.3rem,5.5vw,5.6rem);font-weight:600;line-height:1.04}.ng-opening h1 span{color:var(--ng-ink);overflow-wrap:anywhere}.ng-page .ng-opening-line{letter-spacing:-.025em;font:500 clamp(1.5rem,2.5vw,2.25rem)/1.22 Bricolage,sans-serif;margin-top:30px!important}.ng-opening-copy>p:last-of-type{max-width:34ch;color:var(--ng-text);margin-top:20px;font-size:1.06rem}.ng-opening-links{flex-wrap:wrap;align-items:center;gap:10px 24px;margin-top:30px;display:flex}.ng-button{background:var(--ng-ink);border:0;border-radius:8px;justify-content:space-between;align-items:center;gap:24px;min-height:52px;padding:13px 18px;font-size:.96rem;font-weight:500;text-decoration:none;display:inline-flex;color:#fffdf0!important}.ng-button:hover{background:var(--ng-deep)}.ng-quick-link{align-items:center;min-height:44px;font-size:.9rem;font-weight:500;display:inline-flex}.ng-opening-art{min-width:0;margin:0;position:relative}.ng-opening-art>figcaption{text-align:center;color:var(--ng-text);margin-top:22px;font-size:.83rem;line-height:1.5}.ng-overlap-proof{color:var(--ng-deep)}.ng-hero-proof{background:var(--ng-blue);border-radius:12px;padding:32px 30px 25px;transform:rotate(2deg)}.ng-proof-question{letter-spacing:-.02em;font:500 1.4rem/1.3 Bricolage,sans-serif;margin-bottom:32px!important}.ng-line-example{grid-template-columns:36px minmax(0,1fr);align-items:center;gap:14px;width:100%;padding-top:18px;display:grid}.ng-line-clue{font-variant-numeric:tabular-nums;color:var(--ng-deep);justify-content:flex-end;gap:7px;font-size:1.4rem;font-weight:600;display:flex}.ng-line-cells{grid-template-columns:repeat(var(--length),minmax(0,1fr));border:1px solid #718caa;display:grid}.ng-line-cell{aspect-ratio:1;background:#fffef7;border-inline-end:1px solid #6d86a7;min-width:0;display:block;position:relative}.ng-line-cell:last-child{border-inline-end:0}.ng-line-cell small{text-align:center;color:#3e596c;width:100%;font-size:.7rem;font-weight:400;position:absolute;top:-24px;left:0}.ng-line-cell.is-fill,.ng-square.is-fill{background:var(--ng-ink);border-color:#aac1df}.ng-line-cell.is-focus:after,.ng-square.is-focus:after{content:"";border:2px solid var(--ng-ink);pointer-events:none;position:absolute;inset:4px}.ng-line-cell.is-fill.is-focus:after,.ng-square.is-fill.is-focus:after{border-color:#e4edff}.ng-cross{pointer-events:none;display:none;position:absolute;inset:0}.is-cross .ng-cross{display:block}.ng-cross:before,.ng-cross:after{content:"";background:#4d6480;width:40%;height:2px;position:absolute;top:50%;left:30%;transform:rotate(45deg)}.ng-cross:after{transform:rotate(-45deg)}.ng-sliding-line{position:relative}.ng-sliding-track{pointer-events:none;position:absolute;inset:18px 0 0 50px;overflow:hidden}.ng-sliding-ink{background:var(--ng-ink);width:80%;height:100%;transform:translateX(calc(var(--placement,0)*25%));grid-template-columns:repeat(4,1fr);transition:transform .48s cubic-bezier(.16,1,.3,1);display:grid}.ng-sliding-ink>i{border-inline-end:1px solid #aac1df}.ng-placement-pair{gap:22px;margin-top:30px;display:grid}.ng-placement-pair>div>span,.ng-overlap-result>span{color:#3e596c;margin-bottom:8px;font-size:.77rem;display:block}.ng-placement-pair .ng-line-example{grid-template-columns:24px minmax(0,1fr);gap:12px}.ng-placement-pair .ng-line-clue{font-size:1.05rem}.ng-overlap-result{border-top:1px solid #9cb5d3;margin-top:28px;padding-top:18px}.ng-proof-foot{font-size:.87rem;margin-top:22px!important}.ng-proof-foot strong{font-weight:500}.ng-hero-proof .ng-placement-pair{grid-template-columns:1fr 1fr;gap:22px}.ng-hero-proof .ng-placement-pair .ng-line-example{display:block}.ng-hero-proof .ng-placement-pair .ng-line-clue{display:none}.ng-hero-proof .ng-placement-pair .ng-line-cell small{font-size:.6rem;top:-19px}.ng-hero-proof .ng-overlap-result{margin-top:26px}.ng-chapters{z-index:20;background:var(--paper);border-block:1px solid var(--ng-line);justify-content:space-between;align-items:center;gap:20px;padding-inline:max(24px,50vw - 620px);display:flex;position:sticky;top:0}.ng-chapter-links{scrollbar-width:thin;scrollbar-color:#9aafbc transparent;align-items:center;gap:clamp(18px,3vw,44px);padding:2px 4px;display:flex;overflow:auto}.ng-chapter-links a{white-space:nowrap;border-block:2px solid #0000;flex-shrink:0;align-items:center;min-height:52px;font-size:.88rem;text-decoration:none;display:flex}.ng-chapter-links a[aria-current]{border-bottom-color:var(--ng-ink);color:var(--ng-deep);font-weight:600}.ng-reading-toggle{background:0 0;border:1px solid #849a9f;border-radius:6px;flex-shrink:0;align-items:center;min-height:40px;padding:7px 11px;font-size:.78rem!important}.ng-reading-toggle[aria-pressed=true]{background:var(--ng-blue);border-color:var(--ng-ink)}.ng-reading-progress{pointer-events:none;width:100%;height:2px;position:absolute;bottom:-1px;left:0}.ng-reading-progress span{background:var(--ng-ink);transform-origin:0;height:100%;display:block;transform:scaleX(0)}.ng-view-note{width:min(100% - 48px,900px);color:var(--ng-text);font-size:.9rem;margin:22px auto 0!important}.ng-story{width:min(100% - 64px,900px);margin:0 auto}.ng-beat{scroll-margin-top:calc(var(--ng-nav-height) + 28px);padding-block:70px}.ng-beat-copy>p{color:var(--ng-text);max-width:65ch;margin-top:20px;font-size:1.08rem}.ng-beat-copy>p:first-of-type:not(.ng-deduction-number){font-size:1.17rem}.ng-beat-copy .ng-deduction-number{color:var(--ng-ink);margin:0 0 18px;font-size:.79rem}.ng-inline-proof{width:100%;max-width:440px;margin:30px auto}.ng-inline-proof,.ng-practice-board-wrap{container-type:inline-size}.ng-inline-proof figcaption{color:var(--ng-text);margin-top:16px;font-size:.86rem;line-height:1.5}.ng-inline-proof .ng-line-example{padding-top:28px}.ng-inline-proof .ng-sliding-track{top:28px}.ng-beat .ng-rule-note{border-top:1px solid var(--ng-line);color:var(--ng-text);margin-top:28px;padding-top:20px;font-size:.94rem}.ng-last-beat>.ng-button{margin-top:28px}.ng-overlap-control{flex-direction:column;margin-top:28px}.ng-overlap-control label{flex-wrap:wrap;justify-content:space-between;gap:8px;font-size:.86rem;font-weight:600;display:flex}.ng-overlap-control label span{font-size:.78rem;font-weight:400}.ng-overlap-control input{width:100%;min-height:44px;accent-color:var(--ng-ink);cursor:ew-resize;margin:12px 0}.ng-overlap-control p{color:var(--ng-text);font-size:.79rem}.ng-decision{margin-top:30px}.ng-decision h3{margin:0 0 16px}.ng-answers{flex-direction:column;gap:9px}.ng-answers button{text-align:left;background:0 0;border:1px solid #7f93a3;border-radius:6px;min-height:48px;padding:11px 15px;font-size:.95rem}.ng-answers button:hover{background:#e5ecdf}.ng-answers button.is-right{background:var(--ng-blue);border-color:var(--ng-ink);color:var(--ng-deep)}.ng-answers button.is-wrong{color:#754329;background:#f3e1d3;border-color:#9b6037}.ng-feedback{min-height:80px;font-size:.91rem;margin-top:16px!important}.ng-feedback[data-result=wrong]{color:#834329}.ng-feedback[data-result=right]{color:var(--ng-deep)}.ng-ready .ng-answer-fallback{display:none}.ng-answer-fallback{margin-top:20px}.ng-page summary{cursor:pointer;min-height:48px;padding-block:12px}.ng-answer-fallback p{color:var(--ng-text);font-size:.93rem}.ng-board{table-layout:fixed;border-collapse:collapse;border-spacing:0;font-variant-numeric:tabular-nums;--ng-cell:64px;width:100%;color:var(--ng-deep)}.ng-board .ng-corner,.ng-row-clue{width:58px}.ng-corner{text-align:center;color:#566880;font-size:.8rem;line-height:1.25}.ng-column-clue{vertical-align:bottom;height:86px;padding-bottom:10px;position:relative}.ng-clue{font-size:1.5rem;font-weight:600}.ng-clue small{color:#576e7b;font-size:.65rem;font-weight:400;line-height:1;display:block}.ng-column-clue small{width:100%;position:absolute;top:5px;left:0}.ng-column-clue .ng-clue-values{flex-direction:column;align-items:center;gap:3px;line-height:1.16;display:flex}.ng-row-clue{text-align:right;padding-right:12px;position:relative}.ng-row-clue small{position:absolute;top:50%;left:0;transform:translateY(-50%)}.ng-row-clue .ng-clue-values{justify-content:flex-end;gap:5px;display:flex}.ng-clue.is-done{color:#476451}.ng-clue.is-done .ng-clue-values{text-decoration:line-through 1px}.ng-clue.is-line .ng-clue-values{text-underline-offset:4px;text-decoration:underline}.ng-square{height:var(--ng-cell);background:#fffef7;border:1px solid #6d86a7;padding:0;transition:background-color .2s;position:relative}.ng-square button{appearance:none;width:100%;height:100%;min-height:var(--ng-cell);background:0 0;border:0;padding:0;display:block}.ng-square button:hover{box-shadow:inset 0 0 0 2px #6e8fc5}.ng-square button:focus-visible{outline-offset:-4px;outline:3px solid #986022;box-shadow:inset 0 0 0 6px #fffdf0}.ng-square.is-fill button:focus-visible{box-shadow:none;outline-color:#f3d95e}.ng-square:has(button[data-hint]){box-shadow:inset 0 0 0 3px #986022}.ng-practice{background:var(--ng-blue);scroll-margin-top:var(--ng-nav-height);color:var(--ng-deep);padding:90px max(24px,50vw - 580px) 100px}.ng-practice-intro{grid-template-columns:1fr 1fr;align-items:start;gap:16px 65px;display:grid}.ng-practice-intro h2{grid-row:span 2;font-size:clamp(2.8rem,4.6vw,4.5rem)}.ng-practice-intro>p{max-width:43ch;font-size:1.1rem}.ng-practice-intro .ng-memory{color:#3e596c;font-size:.8rem}.ng-practice-layout{grid-template-columns:minmax(0,1fr) minmax(0,.85fr);align-items:start;gap:clamp(40px,8vw,110px);margin-top:45px;display:grid}.ng-practice-board-wrap{min-width:0;max-width:490px}.ng-inline-proof .ng-board,.ng-practice-board .ng-board{--ng-cell:calc((100cqi - 58px)/5)}.ng-tools{gap:6px;margin-bottom:12px;padding-left:58px}.ng-tools button{background:0 0;border:1px solid #6b88ae;border-radius:6px;flex:1;min-height:46px;padding:8px 12px}.ng-tools button[aria-pressed=true]{background:var(--ng-ink);color:#fffdf0;border-color:var(--ng-ink)}.ng-practice-count{justify-content:space-between;margin-top:18px;padding-left:58px;font-size:.78rem;display:flex}.ng-cell-key{justify-content:flex-end;gap:18px;font-size:.72rem;display:flex;margin-top:18px!important}.ng-cell-key>span{align-items:center;gap:6px;display:inline-flex}.ng-cell-key i{background:#fffdf0;border:1px solid #7188a5;width:13px;height:13px;display:block;position:relative}.ng-cell-key .ng-key-fill{background:var(--ng-ink)}.ng-key-cross:before,.ng-key-cross:after{content:"";background:var(--ng-deep);width:9px;height:1px;position:absolute;top:5px;left:1px;transform:rotate(45deg)}.ng-key-cross:after{transform:rotate(-45deg)}.ng-practice-help{padding-top:10px}.ng-practice-message{min-height:110px;font-size:1.23rem}.ng-practice-actions{flex-wrap:wrap;gap:8px;margin-top:20px}.ng-practice-actions>button,.ng-reset-confirm button{background:0 0;border:1px solid #6b88ae;border-radius:6px;min-height:46px;padding:10px 14px;font-size:.86rem}.ng-practice-actions>button:hover:not(:disabled){background:#cbdcf3}.ng-practice-actions [data-hint]{flex-basis:100%;font-weight:600}.ng-hint{font-size:.95rem;margin-top:20px!important}.ng-apply{margin-top:16px;font-size:.9rem}.ng-reset-confirm{border-block:1px solid #92aac9;margin-top:20px;padding:16px 0;font-size:.9rem}.ng-reset-confirm>div{gap:10px;margin-top:14px;display:flex}.ng-controls{border-top:1px solid #98b0ce;margin-top:24px}.ng-controls summary{font-size:.9rem;font-weight:500}.ng-controls p{margin:6px 0 14px;font-size:.83rem}.ng-skip{align-items:center;min-height:44px;margin-top:8px;font-size:.87rem;display:inline-flex}.ng-no-script{padding:16px 0;font-size:.9rem}.ng-finale{background:var(--ng-deep);color:#fffdf0;scroll-margin-top:var(--ng-nav-height);grid-template-columns:1fr 1fr;align-items:center;gap:clamp(40px,8vw,115px);padding:100px max(24px,50vw - 580px);display:grid}.ng-finale-figure{margin:0}.ng-picture-print{aspect-ratio:1;grid-template-columns:repeat(5,1fr);gap:5px;width:min(90%,365px);margin:auto;transition:transform .6s cubic-bezier(.16,1,.3,1);display:grid;transform:rotate(-4deg)}.ng-picture-print>span{background:#294781;border:1px solid #5570a1;transition:background .25s}.ng-picture-print>span.is-ink{background:#e7f0ff;border-color:#0000}.ng-picture-print.is-complete{transform:rotate(0)}.ng-picture-print.is-complete>span:not(.is-ink){background:0 0;border-color:#0000}.ng-finale-figure figcaption{color:#c8d8ef;text-align:center;margin-top:26px;font-size:.8rem}.ng-finale h2{font-size:clamp(2.8rem,4.5vw,4.5rem)}.ng-finale-copy>p{color:#d0dff5;max-width:38ch;margin-top:24px;font-size:1.06rem}.ng-play-button{background:#f3d95e;margin-top:30px;color:var(--ng-deep)!important}.ng-play-button:hover{background:#f9e88e}.ng-return{min-height:44px;margin-top:18px;font-size:.87rem;display:block}.ng-finale-copy .ng-free-note{margin-top:16px;font-size:.77rem}.ng-reference{width:min(100% - 64px,1160px);scroll-margin-top:calc(var(--ng-nav-height) + 30px);grid-template-columns:1fr 1fr;gap:clamp(40px,7vw,100px);margin:90px auto;display:grid}.ng-reference h2{margin-bottom:24px;font-size:2.3rem}.ng-reference ol{margin:0;padding-left:22px}.ng-reference li{color:var(--ng-text);margin-bottom:16px;padding-left:5px;line-height:1.65}.ng-reference strong{color:var(--ink);font-weight:600}.ng-reference>div>p{color:var(--ng-text);margin-top:18px;font-size:.95rem}.ng-reference .ng-quick-link{margin-top:15px}.ng-faq details{border-bottom:1px solid var(--ng-line)}.ng-faq summary{padding:16px 0;font-size:.96rem}.ng-faq p{color:var(--ng-text);padding:0 0 18px;font-size:.91rem}.ng-footer{border-top:1px solid var(--ng-line);grid-template-columns:.8fr 1.7fr auto;align-items:start;gap:35px;padding:30px max(24px,50vw - 620px);display:grid}.ng-footer .ng-brand{font-size:1.1rem}.ng-footer p{color:var(--ng-text);font-size:.77rem}.ng-footer p+p{margin-top:8px}.ng-footer>a:last-child{align-items:center;min-height:44px;font-size:.8rem;display:inline-flex}.ng-scroll-ready:not([data-reading=true]) .ng-story{width:100%;max-width:none}.ng-scroll-ready:not([data-reading=true]) .ng-stage{top:var(--ng-nav-height);z-index:8;background:#e8eff9;border-bottom:1px solid #bdcce0;flex-direction:column;height:clamp(250px,42svh,365px);padding:10px 20px 0;display:flex;position:sticky;overflow:hidden;box-shadow:0 12px 20px -20px #1c35764d}.ng-stage-heading{color:#3f587c;font-variant-numeric:tabular-nums;flex-shrink:0;justify-content:space-between;gap:20px;width:100%;max-width:560px;margin:0 auto;font-size:.72rem;display:flex}.ng-stage-art{flex:1;justify-content:center;align-items:center;width:100%;min-height:0;margin:0 auto;display:flex}.ng-page [data-story-scene]{fill:none;stroke:none;stroke-width:0;width:100%;max-width:650px;height:100%;display:block;overflow:visible}.ng-stage-caption{color:#304a6a;text-align:center;flex-shrink:0;width:100%;max-width:480px;min-height:32px;font-size:.77rem;margin:0 auto 6px!important;line-height:1.4!important}.ng-stage-controls{flex-shrink:0;justify-content:space-between;align-items:center;gap:8px;width:100%;max-width:560px;margin:0 auto;display:flex}.ng-stage-controls button{background:0 0;border:0;align-items:center;gap:7px;min-height:44px;padding:5px 3px;font-size:.8rem;display:inline-flex}.ng-stage-controls button:hover:not(:disabled){color:var(--ng-ink)}.ng-stage-controls button svg{width:18px;height:18px}.ng-scroll-cue{color:#445d7b;align-items:center;gap:6px;font-size:.7rem;display:inline-flex}.ng-scroll-cue svg{width:14px;height:14px}.ng-scene-meter{flex-shrink:0;gap:4px;width:100%;max-width:560px;height:3px;margin:0 auto;display:flex}.ng-scene-meter>span{background:#c3d1e4;flex:1;overflow:hidden}.ng-scene-meter i{background:var(--ng-ink);height:100%;transform:scaleX(var(--meter-progress,0));transform-origin:0;display:block}.ng-scroll-ready:not([data-reading=true]) .ng-story-copy{padding-inline:24px}.ng-scroll-ready:not([data-reading=true]) .ng-beat{min-height:86svh;scroll-margin-top:var(--ng-scroll-offset);border-bottom:0;padding:30px 0 70px;position:relative}.ng-scroll-ready:not([data-reading=true]) .ng-beat:has(.ng-decision){min-height:105svh}.ng-scroll-ready:not([data-reading=true]) .ng-beat[data-hold=true] .ng-beat-body{top:var(--ng-scroll-offset);position:sticky}.ng-scroll-ready:not([data-reading=true]) .ng-inline-proof{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;margin:0;position:absolute;overflow:hidden}.ng-scroll-ready:not([data-reading=true]) .ng-beat h2{font-size:clamp(1.9rem,6.9vw,2.7rem)}.ng-scroll-ready:not([data-reading=true]) .ng-beat-copy>p{font-size:1rem;line-height:1.6}.ng-last-beat .ng-button{margin-top:26px}.ng-resume-scroll{text-underline-offset:4px;background:0 0;border:0;align-self:flex-start;min-height:44px;padding:8px 0;font-size:.83rem;text-decoration:underline}.ng-page .ng-opening-scene{fill:none;stroke:none;stroke-width:0;width:100%;height:auto;max-height:520px;display:block;overflow:visible}.ng-opening-paper{transform:rotate(calc(-8deg + var(--hero-p,.5)*8deg));transform-origin:310px 234px}.ng-opening-tile-0{transform:translate(calc(-28px*(1 - 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