.sg-page{--sg-teal:#12655f;--sg-aqua:#dfede5;--sg-line:#a8beb0;--sg-text:#3e5f51;--sg-nav:54px;--sg-anchor:420px;scrollbar-color:#729d92 var(--paper);overflow-x:clip}.sg-page [hidden]{display:none!important}.sg-page :is(h1,h2,h3){letter-spacing:-.035em;text-wrap:balance;font-family:Bricolage,Outfit,sans-serif;font-weight:600}.sg-page h2{font-size:clamp(2.1rem,3.5vw,3.4rem);line-height:1.08}.sg-page h3{margin:0 0 18px;font-size:1.3rem;line-height:1.3}.sg-page p{line-height:1.6}.sg-page button{cursor:pointer;color:inherit}.sg-page button:disabled{opacity:.4;cursor:default}.sg-page :is(button,a,summary):focus-visible{outline-offset:4px;outline:3px solid #94651f}.sg-page :is(h1,h2,main):focus{outline:none}.sg-page .skip-link{z-index:50}.sg-page ::selection{background:var(--sg-teal);color:var(--paper)}.sg-page a,.sg-page button{-webkit-tap-highlight-color:#bee0dc80}.sg-js,.sg-stage{display:none}.sg-ready .sg-js{display:flex}.sg-page .r2-icon{flex:0 0 20px;width:20px;height:20px}.sg-header{justify-content:space-between;align-items:center;gap:16px;width:min(100% - 48px,1240px);min-height:76px;margin:auto;display:flex}.sg-brand{letter-spacing:-.03em;align-items:center;gap:9px;min-height:44px;font:800 1.24rem/1 Bricolage,sans-serif;text-decoration:none;display:inline-flex}.sg-header-play{align-items:center;gap:12px;min-height:44px;font-size:.9rem;text-decoration:none;display:flex}.sg-header-play:hover{text-decoration:underline}.sg-opening{grid-template-columns:1fr 1fr;align-items:center;gap:10%;width:min(100% - 80px,1120px);margin:0 auto;padding:40px 0 54px;display:grid}.sg-opening h1{font-size:clamp(3rem,5.1vw,4.8rem);line-height:1.04}.sg-opening h1 span{color:var(--sg-teal)}.sg-opening-line{letter-spacing:-.025em;font:500 clamp(1.5rem,2.5vw,2.2rem)/1.15 Bricolage,sans-serif}.sg-opening-line+p{max-width:40ch;color:var(--sg-text);margin-top:15px}.sg-opening-links{flex-wrap:wrap;align-items:center;gap:24px;margin-top:20px;display:flex}.sg-text-link{align-items:center;gap:18px;min-height:44px;font-size:.92rem;font-weight:500;display:inline-flex}.sg-opening-links>a:first-child .r2-icon{transform:rotate(90deg)}.sg-nav{z-index:30;background:var(--paper);border-block:1px solid var(--sg-line);align-items:center;gap:18px;padding:0 max(20px,50vw - 620px);display:flex;position:sticky;top:0}.sg-chapter-links{scrollbar-width:thin;flex:1;gap:30px;padding:2px 4px;display:flex;overflow-x:auto}.sg-chapter-links a{white-space:nowrap;border-bottom:2px solid #0000;align-items:center;min-height:48px;font-size:.87rem;text-decoration:none;display:flex}.sg-chapter-links a[aria-current]{border-color:var(--sg-teal);font-weight:600}.sg-reading{background:0 0;border:1px solid #7f9b89;border-radius:6px;flex-shrink:0;align-items:center;min-height:42px;padding:8px 12px;font-size:.8rem!important}.sg-reading[aria-pressed=true]{background:var(--sg-aqua)}.sg-progress{width:100%;height:2px;position:absolute;bottom:-1px;left:0}.sg-progress>span{background:var(--sg-teal);transform-origin:0;height:100%;display:block;transform:scaleX(0)}.sg-view-note{width:min(100% - 40px,900px);color:var(--sg-text);margin:24px auto!important}.sg-story{width:min(100% - 64px,1240px);margin:auto}.sg-beat{scroll-margin-top:calc(var(--sg-nav) + 24px);padding:60px 0}.sg-beat p{color:var(--sg-text);max-width:65ch;margin-top:20px;font-size:1.06rem}.sg-note{border-top:1px solid var(--sg-line);padding-top:20px;font-size:.94rem!important}.sg-static-proofs{gap:32px;margin-block:28px;display:grid}.sg-static-proofs figure{margin:0}.sg-diagram{background:var(--sg-aqua);border-radius:12px;width:min(100%,380px);height:auto;max-height:400px;margin:auto;display:block}.sg-static-proofs figcaption{max-width:55ch;color:var(--sg-text);margin:16px auto 0;font-size:.95rem;line-height:1.6}.sg-scroll-ready[data-reading=false] .sg-story{grid-template-columns:minmax(0,1fr) minmax(0,.95fr);align-items:start;gap:clamp(40px,6vw,90px);display:grid}.sg-scroll-ready[data-reading=false] .sg-stage{top:calc(var(--sg-nav) + 20px);height:min(780px,calc(100svh - var(--sg-nav) - 40px));background:var(--sg-aqua);z-index:10;border-radius:16px;flex-direction:column;min-width:0;margin-top:20px;padding:22px;display:flex;position:sticky}.sg-stage-top{color:var(--sg-text);font-variant-numeric:tabular-nums;justify-content:space-between;gap:10px;font-size:.78rem;display:flex}.sg-scene{stroke-linejoin:round;flex:1;width:100%;min-height:0;display:block;overflow:hidden}.sg-stage-caption{text-align:center;flex-shrink:0;height:124px;min-height:124px;padding:16px 2px 10px}.sg-stage-caption strong{letter-spacing:-.02em;font:600 1.18rem/1.25 Bricolage,sans-serif;display:block}.sg-stage-caption p{color:var(--sg-text);margin-top:8px;font-size:.9rem;line-height:1.45}.sg-stage-controls{border-top:1px solid #b7ccc0;justify-content:space-between;align-items:center;gap:8px;display:flex}.sg-stage-controls button{background:0 0;border:0;align-items:center;gap:7px;min-height:46px;padding:6px 0;font-size:.85rem;display:flex}.sg-stage-controls button:hover{color:var(--sg-teal)}.sg-scroll-cue{color:var(--sg-text);font-size:.75rem}.sg-meter{gap:4px;display:flex}.sg-meter>span{background:#bbd1c4;flex:1;height:3px}.sg-meter i{background:var(--sg-teal);transform-origin:0;height:100%;transform:scaleX(var(--p,0));display:block}.sg-scroll-ready[data-reading=false] .sg-beat{min-height:calc(var(--travel,600px) + var(--body,400px) + 110px);padding:70px 0 80px}.sg-scroll-ready[data-reading=false] .sg-beat[data-hold=false]{min-height:max(calc(var(--travel) + 160px),calc(var(--body) + 110px))}.sg-scroll-ready[data-reading=false] .sg-beat[data-hold=false] .sg-decision{margin-top:var(--decision-gap,28px)}.sg-scroll-ready[data-reading=false] .sg-beat[data-hold=true]>div{top:var(--sg-anchor);position:sticky}.sg-scroll-ready[data-reading=false] .sg-static-proofs{clip-path:inset(50%);width:1px;height:1px;margin:0;position:absolute;overflow:hidden}.sg-scroll-ready[data-reading=false] .sg-decision[data-ready=false]{visibility:hidden}.sg-decision{margin-top:28px}.sg-answers{flex-direction:column;gap:9px}.sg-answers button{text-align:left;background:0 0;border:1px solid #8aa08d;border-radius:6px;min-height:48px;padding:12px 16px}.sg-answers button:hover{background:#e4ecda}.sg-answers button[data-result=right]{border-color:var(--sg-teal);background:#cee3dc}.sg-answers button[data-result=wrong]{background:#f1dfcf;border-color:#aa3e2f}.sg-decision [data-feedback]{min-height:60px;margin-top:16px;font-size:.94rem}.sg-ready .sg-answer-fallback{display:none}.sg-page summary{cursor:pointer;min-height:48px;padding-block:12px}.sg-button{background:var(--sg-teal);border:0;border-radius:7px;justify-content:space-between;align-items:center;gap:24px;min-height:52px;padding:12px 18px;font-weight:500;text-decoration:none;display:inline-flex;color:#fffdf0!important}.sg-button:hover{background:#164e45}.sg-beat .sg-button{margin-top:24px}.sg-practice-section{width:min(100% - 80px,1120px);scroll-margin-top:var(--sg-nav);margin:auto;padding:90px 0 70px}.sg-practice-intro{grid-template-columns:1fr 1fr;align-items:end;gap:10%;margin-bottom:36px;display:grid}.sg-practice-intro>p{color:var(--sg-text);font-size:1.05rem}.sg-practice{grid-template-columns:minmax(0,1fr) minmax(0,.9fr);align-items:start;gap:clamp(40px,7vw,110px);display:grid}.sg-practice-board-wrap{min-width:0;max-width:500px}.sg-tools{gap:6px;margin:0 8.33% 4px}.sg-tools button{background:0 0;border:1px solid #8aa08d;border-radius:6px;flex:1;min-height:44px}.sg-tools button[aria-pressed=true]{background:var(--sg-teal);color:var(--paper);border-color:var(--sg-teal)}.sg-practice-board{aspect-ratio:1;background:#e4eee1;border-radius:14px;width:100%;position:relative}.sg-practice-board>svg{pointer-events:none;width:100%;height:100%;display:block}.sg-cell-targets{grid-template-rows:repeat(5,minmax(0,1fr));grid-template-columns:repeat(5,minmax(0,1fr));display:grid;position:absolute;inset:8.33333%}.sg-cell-targets button{background:0 0;border:0;border-radius:7px;min-width:0;padding:0}.sg-cell-targets button:hover{background:#12655f10}.sg-cell-targets button[aria-pressed=true]{box-shadow:inset 0 0 0 2px #12655f70}.sg-cell-targets button:focus-visible{outline-offset:-6px;outline:3px solid #94651f}.sg-p-line,.sg-p-cross,.sg-clue-error{display:none}.sg-practice-board [data-mark="1"] .sg-p-line,.sg-practice-board [data-mark="-1"] .sg-p-cross,.sg-practice-board [data-error=true] .sg-clue-error{display:block}.sg-practice-board [data-hinted=true][data-hint-kind=line] .sg-p-line{stroke:#94651f;stroke-dasharray:5 4;display:block}.sg-practice-board [data-hinted=true][data-hint-kind=cross] .sg-p-cross{stroke:#94651f;stroke-width:3px;opacity:.7;display:block}.sg-selection{color:var(--sg-text);text-align:center;font-size:.9rem;margin:10px 0!important}.sg-ready .sg-side-controls{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.sg-side-controls button{background:0 0;border:1px solid #8aa08d;border-radius:7px;justify-content:space-between;gap:8px;min-height:50px;padding:9px 13px;display:flex}.sg-side-controls [data-side-state]{color:var(--sg-text);align-self:center;font-size:.8rem}.sg-side-controls button[data-hinted=true]{background:#f4e5bd;border:2px solid #94651f}.sg-practice-message{min-height:70px;font-size:.94rem;margin-top:16px!important}.sg-practice-message[data-error=true]{color:#923e2a}.sg-practice-instruction{font:600 1.7rem/1.25 Bricolage,sans-serif}.sg-practice-help>p+p{color:var(--sg-text);margin-top:16px}.sg-practice-actions{flex-wrap:wrap;gap:10px;margin-block:24px}.sg-practice-actions button,.sg-reset button{background:0 0;border:1px solid #8aa08d;border-radius:6px;min-height:46px;padding:10px 14px}.sg-practice-actions button:hover,.sg-reset button:hover{background:#e4ecda}.sg-memory{font-size:.85rem}.sg-practice-help details{border-block:1px solid var(--sg-line);margin-block:20px}.sg-practice-help details p{color:var(--sg-text);margin-bottom:16px;font-size:.9rem}.sg-reset{flex-direction:column;gap:12px;margin:18px 0}.sg-reset>div{flex-wrap:wrap;gap:8px;display:flex}.sg-hint{background:#ecdfb9;border-radius:8px;margin-top:12px;padding:16px}.sg-hint p{font-size:.94rem}.sg-hint .sg-button{margin-top:12px}.sg-practice-board[data-complete=true]{background:#d8e8d4}.sg-finale{scroll-margin-top:calc(var(--sg-nav) + 24px);background:#dbe8db;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:center;gap:10%;padding:60px max(40px,50vw - 560px);display:grid}.sg-finale figure{margin:0}.sg-your-loop{width:100%;height:auto;max-height:420px;display:block}.sg-finale figcaption{text-align:center;color:var(--sg-text);font-size:.85rem;line-height:1.5}.sg-finale>div>p{color:var(--sg-text);max-width:40ch;margin-top:24px}.sg-finale .sg-button{margin-top:26px}.sg-finale [data-return]{width:fit-content;margin-top:12px;display:flex}.sg-free-note{font-size:.82rem}.sg-reference{width:min(100% - 80px,1120px);scroll-margin-top:calc(var(--sg-nav) + 24px);grid-template-columns:1fr .9fr;gap:10%;margin:auto;padding:100px 0;display:grid}.sg-reference h2{margin-bottom:26px;font-size:clamp(1.9rem,3vw,2.7rem)}.sg-reference ol{margin:0;padding-left:22px}.sg-reference li{padding:0 0 16px 6px;line-height:1.6}.sg-reference p{color:var(--sg-text);font-size:.95rem}.sg-reference-links{flex-wrap:wrap;gap:12px 24px;margin-top:20px;display:flex}.sg-reference-links a{align-items:center;min-height:44px;display:flex}.sg-faq details{border-bottom:1px solid var(--sg-line)}.sg-faq details p{padding-bottom:18px}.sg-footer{border-top:1px solid var(--sg-line);justify-content:space-between;align-items:start;gap:40px;width:min(100% - 48px,1240px);margin:auto;padding:30px 0 50px;display:flex}.sg-footer p{color:var(--sg-text);max-width:48ch;font-size:.82rem}.sg-footer>a:last-child{min-height:44px;font-size:.85rem}.sg-page[data-reading=true] .sg-story{max-width:900px}.sg-page[data-reading=true] .sg-static-proofs{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}.sg-page[data-reading=true] .sg-beat{padding-block:50px}@media (width<=960px){.sg-header{width:calc(100% - 36px);min-height:64px}.sg-brand{font-size:1.08rem}.sg-header-play{gap:7px;font-size:.8rem}.sg-opening{grid-template-columns:1fr;gap:16px;width:calc(100% - 40px);padding:22px 0 26px}.sg-opening h1{font-size:clamp(2.5rem,9vw,3.3rem);line-height:1.04}.sg-opening-line{font-size:1.5rem}.sg-opening-line+p{max-width:48ch;margin-top:10px;font-size:.94rem}.sg-opening-links{gap:24px;margin-top:10px}.sg-nav{gap:10px;padding-inline:12px}.sg-chapter-links{gap:20px;min-width:0}.sg-reading{padding-inline:9px;font-size:.75rem!important}.sg-scroll-ready[data-reading=false] .sg-story{width:100%;display:block}.sg-scroll-ready[data-reading=false] .sg-stage{top:var(--sg-nav);border-radius:0;height:auto;margin-top:0;padding:10px 20px 0}.sg-stage-top{font-size:.73rem}.sg-scene{flex:none;height:clamp(190px,26svh,235px);margin-top:2px}.sg-stage-caption{height:124px;min-height:124px;padding:7px 0 8px}.sg-stage-caption strong{font-size:1.05rem}.sg-stage-caption p{margin-top:5px;font-size:.85rem;line-height:1.4}.sg-stage-controls button{min-height:44px;font-size:.8rem}.sg-stage-controls .r2-icon{flex-basis:17px;width:17px;height:17px}.sg-scroll-cue{font-size:.68rem}.sg-beat h2{font-size:1.9rem}.sg-scroll-ready[data-reading=false] .sg-beat{min-height:calc(var(--travel,600px) + var(--body,400px) + 100px);padding:34px 22px 70px}.sg-beat p{margin-top:16px;font-size:1rem}.sg-scroll-ready[data-reading=false] .sg-beat[data-hold=true]>div{top:var(--sg-anchor)}.sg-story{width:calc(100% - 40px)}.sg-practice-section{width:calc(100% - 40px);padding:60px 0 45px}.sg-practice-intro{grid-template-columns:1fr;gap:20px;margin-bottom:26px}.sg-practice-intro h2{font-size:2.2rem}.sg-practice-intro>p{font-size:1rem}.sg-practice{grid-template-columns:1fr;gap:24px}.sg-practice-board-wrap{width:100%;max-width:400px;margin:auto}.sg-practice-help{max-width:500px}.sg-practice-instruction{font-size:1.4rem}.sg-practice-actions{margin-block:16px}.sg-finale{grid-template-columns:1fr;gap:30px;padding:30px 24px 50px}.sg-finale figure{width:100%;max-width:360px;margin:auto}.sg-finale>div{width:100%;max-width:500px;margin:auto}.sg-finale h2{font-size:2.3rem}.sg-reference{grid-template-columns:1fr;gap:50px;width:calc(100% - 40px);padding:60px 0}.sg-reference h2{font-size:2rem}.sg-footer{flex-wrap:wrap;gap:20px}.sg-page[data-reading=true] .sg-static-proofs{grid-template-columns:1fr}.sg-view-note{font-size:.9rem}.sg-page[data-reading=true] .sg-beat{padding-block:36px}}@media (width<=350px){.sg-opening h1{font-size:2.6rem}.sg-stage-caption{min-height:124px}.sg-scroll-cue{display:none}.sg-nav{gap:7px}.sg-chapter-links{gap:16px}.sg-practice-section{width:calc(100% - 32px)}.sg-side-controls button{padding-inline:10px}.sg-practice-actions{gap:7px}.sg-practice-actions button{padding-inline:10px;font-size:.9rem}}@media (prefers-reduced-motion:reduce){.sg-page *,.sg-page :before,.sg-page :after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@media print{.sg-header,.sg-nav,.sg-stage,.sg-js,.sg-practice-section,.sg-finale,.sg-opening-links{display:none!important}.sg-page .sg-story,.sg-page .sg-reference{width:100%!important;display:block!important}.sg-page .sg-beat{break-inside:avoid;min-height:0!important;padding:20px!important}.sg-page [data-beat-body]{position:static!important}.sg-page .sg-static-proofs{clip-path:none!important;grid-template-columns:1fr 1fr!important;width:auto!important;height:auto!important;display:grid!important;position:static!important}.sg-page .sg-decision{visibility:visible!important}.sg-answer-fallback{display:block!important}.sg-opening{width:100%;padding:20px}.sg-diagram{max-height:200px}}