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:root{--paper:#fff;--surface2:#f4f4f1;--line:#e4e4e0;--text:#121212;--text2:#6b6b68;--text3:#8e8e89;--lime:#d8f24a;--lime-soft:#f1fbc8;--lime-edge:#a8c428;--on-lime:#121212;--cell:#fff;--cell-text:#121212;--anchor:#121212;--anchor-text:#fff;--empty:#f7f7f4;--grid:#121212;--frame:#121212;--button-face:#1a1a19;--button-edge:#000;--button-text:#fff;--raised-face:#fff;--raised-edge:#d7d7d2;--press:#f0f0ec;--slab:var(--font-slab), "Zilla Slab", Georgia, serif;--sans:var(--font-text), "Gabarito", ui-sans-serif, system-ui, sans-serif;--wrap:1080px;--gutter:20px;--ease:cubic-bezier(.22, 1, .36, 1);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark}@media (prefers-color-scheme:dark){:root{--lightningcss-light: 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var(--ease);padding-bottom:1px;font-weight:700;text-decoration:none}.text-link:hover{background:var(--lime-soft)}.board{--size:46px;border:2px solid var(--frame);background:var(--grid);-webkit-user-select:none;user-select:none;place-self:start;gap:2px;width:max-content;display:inline-grid}.board-s{--size:30px}.board-l{--size:clamp(46px, 11vw, 58px)}.board-row{grid-template-columns:repeat(var(--letters), var(--size));gap:2px;display:grid}.cell{width:var(--size);height:var(--size);background:var(--cell);color:var(--cell-text);font-family:var(--sans);font-weight:800;font-size:calc(var(--size) * .48);place-items:center;line-height:1;display:grid}.board-anchor .cell{background:var(--anchor);color:var(--anchor-text)}.board-empty .cell{background:var(--empty)}.cell-mark{background:var(--lime);color:var(--on-lime)}.board-animate .board-step .cell{animation:cell-in .5s var(--ease) both;animation-delay:calc(.5s + var(--i) * .55s)}.board-animate .board-final .cell{animation:final-in .8s var(--ease) both;animation-delay:calc(.5s + var(--i) * .55s)}@keyframes row-in{0%{opacity:0;transform:translateY(-8px)}}@keyframes cell-in{0%{background:var(--empty);color:#0000}}@keyframes final-in{0%,to{background:var(--anchor);color:var(--anchor-text)}45%{background:var(--lime);color:var(--on-lime)}}.line-dot{fill:var(--text3)}.line-path{fill:none;stroke:var(--text);stroke-width:3px;stroke-linecap:round;stroke-linejoin:round}.line-start{fill:var(--paper);stroke:var(--text);stroke-width:2.5px}.line-end{fill:var(--lime);stroke:var(--text);stroke-width:2.5px}.line-animate .line-path{stroke-dasharray:var(--length);stroke-dashoffset:var(--length);animation:draw 1.6s var(--ease) 2.9s forwards}.line-animate .line-end{opacity:0;animation:fade .4s var(--ease) 4.3s forwards}@keyframes draw{to{stroke-dashoffset:0}}@keyframes fade{to{opacity:1}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-delay:0s!important}}.hero{padding-block:clamp(40px,7vw,88px) clamp(56px,8vw,96px)}.hero-grid{grid-template-columns:1.1fr .9fr;align-items:center;gap:clamp(32px,6vw,80px);display:grid}.hero-meta{color:var(--text2);margin-top:18px;font-size:.95rem}.hero-art{justify-content:center;align-items:center;gap:clamp(18px,3vw,32px);display:flex}.hero-caption{text-align:center;color:var(--text2);margin-top:16px;font-size:.92rem}@media (max-width:860px){.hero-grid{grid-template-columns:1fr}}.today{background:var(--surface2);border-radius:20px;grid-template-columns:auto 1fr;align-items:center;gap:clamp(24px,5vw,56px);padding:clamp(24px,4vw,44px);display:grid}.today-number{color:var(--text2);margin-bottom:6px;font-size:.95rem;font-weight:700}@media (max-width:640px){.today{grid-template-columns:1fr}}.steps{grid-template-columns:repeat(4,1fr);gap:20px;display:grid}.step{border:1px solid var(--line);background:var(--paper);border-radius:18px;flex-direction:column;gap:16px;padding:24px;display:flex}.step-art{align-items:center;min-height:132px;display:flex}.step h3{margin:0}.step p{color:var(--text2);margin:0}@media (max-width:980px){.steps{grid-template-columns:repeat(2,1fr)}}@media (max-width:560px){.steps{grid-template-columns:1fr}}.screens{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}.screens img{border:1px solid var(--line);border-radius:20px;width:100%;height:auto}@media (max-width:760px){.screens{scroll-snap-type:x mandatory;margin-inline:calc(var(--gutter) * -1);padding-inline:var(--gutter);scrollbar-width:none;grid-template-columns:repeat(3,72%);overflow-x:auto}.screens>*{scroll-snap-align:center}}.features{grid-template-columns:repeat(3,1fr);gap:28px 32px;display:grid}.feature h3{margin-bottom:6px;font-size:1.15rem}.feature p{color:var(--text2);margin:0}@media (max-width:860px){.features{grid-template-columns:1fr 1fr}}@media (max-width:560px){.features{grid-template-columns:1fr}}.plans{grid-template-columns:1fr 1fr;gap:20px;display:grid}.plan{border:2px solid var(--text);border-radius:20px;padding:28px}.plan-lime{background:var(--lime-soft)}.plan-price{font-family:var(--slab);margin:4px 0 12px;font-size:2.2rem;font-weight:700}.plan ul{color:var(--text2);margin:0;padding-left:1.1em}.plan li{margin-bottom:6px}@media (max-width:680px){.plans{grid-template-columns:1fr}}.cta{text-align:center}.cta .button-row{justify-content:center}.faq{border-top:2px solid var(--text)}.faq details{border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;transition:background .25s var(--ease);justify-content:space-between;align-items:center;gap:16px;padding:20px 4px;font-size:1.1rem;font-weight:700;list-style:none;display:flex}.faq summary::-webkit-details-marker{display:none}.faq summary:active{background:var(--press)}.faq summary:after{content:"";background:linear-gradient(var(--text), var(--text)) center / 14px 2.5px no-repeat, linear-gradient(var(--text), var(--text)) center / 2.5px 14px no-repeat;width:14px;height:14px;transition:transform .35s var(--ease);flex:none}.faq details[open] summary:after{transform:rotate(45deg)}.faq details>div{color:var(--text2);max-width:44em;padding:0 4px 20px}.faq details>div p:last-child{margin:0}.page-head{padding-block:clamp(40px,7vw,80px) 28px}.crumbs{color:var(--text2);gap:8px;margin-bottom:14px;font-size:.92rem;font-weight:600;display:flex}.crumbs a{text-decoration:none}.crumbs a:hover{color:var(--text)}.prose{font-size:1.08rem}.prose h2{margin-top:1.8em;scroll-margin-top:90px;font-size:clamp(1.6rem,3.4vw,2.1rem)}.prose h3{margin-top:1.4em}.prose ul,.prose ol{padding-left:1.2em}.prose li{margin-bottom:.5em}.prose li::marker{color:var(--text3)}.figure{background:var(--surface2);border-radius:18px;flex-wrap:wrap;align-items:center;gap:24px 32px;margin:28px 0;padding:28px;display:flex}.figure figcaption{color:var(--text2);flex:220px;font-size:.98rem}.figure figcaption strong{color:var(--text)}.examples{grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr));gap:20px;margin:24px 0;display:grid}.example{border:1px solid var(--line);border-radius:18px;flex-direction:column;gap:14px;padding:22px;display:flex}.example h3{margin:0;font-size:1.2rem}.example p{color:var(--text2);margin:0;font-size:.95rem}.example-route{letter-spacing:.02em;color:var(--text);font-size:.92rem;font-weight:700}.ladder-grid{grid-template-columns:auto 1fr;align-items:start;gap:clamp(28px,6vw,72px);display:grid}.ladder-art{align-items:flex-start;gap:24px;display:flex}@media (max-width:760px){.ladder-grid{grid-template-columns:1fr}}.route-steps{border-top:2px solid var(--text);margin:0 0 24px;padding:0;list-style:none}.route-steps li{border-bottom:1px solid var(--line);justify-content:space-between;gap:16px;padding:12px 2px;display:flex}.route-steps .word{letter-spacing:.06em;font-weight:800}.route-steps .how{color:var(--text2);text-align:right}.other-routes{letter-spacing:.03em;margin:0 0 12px;padding:0;font-size:.92rem;font-weight:700;list-style:none}.other-routes li{border-bottom:1px solid var(--line);padding:8px 0}.facts{flex-wrap:wrap;gap:10px;margin:0 0 22px;padding:0;list-style:none;display:flex}.facts li{background:var(--surface2);border-radius:999px;padding:6px 14px;font-size:.92rem;font-weight:600}.facts li.mark{background:var(--lime);color:var(--on-lime)}.pager{border-top:1px solid var(--line);justify-content:space-between;gap:16px;margin-top:40px;padding-top:20px;font-weight:700;display:flex}.pager a{text-decoration:none}.pager span{color:var(--text2);font-size:.9rem;font-weight:500;display:block}.hints{flex-direction:column;gap:12px;margin:8px 0 28px;display:flex}.hint{border:1px solid var(--line);border-radius:16px;overflow:hidden}.hint button{background:var(--paper);width:100%;color:var(--text);font:inherit;text-align:left;cursor:pointer;transition:background .25s var(--ease);border:0;justify-content:space-between;align-items:center;gap:16px;padding:16px 18px;font-weight:700;display:flex}.hint button:active{background:var(--press)}.hint button span:last-child{color:var(--text2);font-size:.9rem;font-weight:600}.hint-body{transition:grid-template-rows .45s var(--ease);grid-template-rows:0fr;display:grid}.hint-open .hint-body{grid-template-rows:1fr}.hint-body>div{overflow:hidden}.hint-body p{margin:0;padding:0 18px 18px;font-size:1.1rem}.archive-month{margin-bottom:40px}.archive-month h2{margin-bottom:10px;font-size:1.5rem}.archive-list{border-top:2px solid var(--text);margin:0;padding:0;list-style:none}.archive-list a{border-bottom:1px solid var(--line);transition:background .25s var(--ease);grid-template-columns:4.5em 5em 1fr auto;align-items:baseline;gap:12px;padding:14px 6px;text-decoration:none;display:grid}.archive-list a:hover{background:var(--surface2)}.archive-list a:active{background:var(--press)}.archive-list .num{font-weight:700}.archive-list .date,.archive-list .par{color:var(--text2);font-size:.92rem}.archive-list .pair{letter-spacing:.04em;font-weight:700}.badge{background:var(--lime);color:var(--on-lime);letter-spacing:0;vertical-align:2px;border-radius:6px;margin-left:8px;padding:2px 8px;font-size:.78rem;font-weight:700;display:inline-block}@media (max-width:560px){.archive-list a{grid-template-columns:3.6em 1fr auto}.archive-list .date{display:none}}.solver{flex-wrap:wrap;align-items:flex-end;gap:14px;margin:8px 0 28px;display:flex}.solver label{flex-direction:column;gap:6px;font-size:.92rem;font-weight:700;display:flex}.solver input{border:2px solid var(--text);background:var(--paper);width:9.5em;height:56px;color:var(--text);font:inherit;letter-spacing:.12em;text-transform:uppercase;border-radius:12px;padding:0 14px;font-size:1.3rem;font-weight:800}.solver input::placeholder{color:var(--text3);letter-spacing:.04em;text-transform:none;font-size:1rem;font-weight:600}.solver-result{min-height:60px;animation:row-in .45s var(--ease) both;flex-wrap:wrap;align-items:flex-start;gap:24px 36px;display:flex}.notice{background:var(--surface2);border-radius:14px;max-width:34em;padding:16px 18px;font-weight:600}.sheet{border:2px solid var(--text);border-radius:18px;margin-bottom:28px;padding:28px}.sheet-head{flex-wrap:wrap;justify-content:space-between;gap:8px 24px;margin-bottom:18px;display:flex}.sheet-head h2{margin:0;font-size:1.7rem}.sheet-name{color:var(--text2)}.sheet-grid{grid-template-columns:repeat(4,1fr);gap:24px 20px;display:grid}.sheet-item{flex-direction:column;align-items:flex-start;gap:8px;display:flex}.sheet-item b{font-size:.9rem}.answers{color:var(--text2);margin-top:18px;font-size:.92rem}.answers ol{columns:2;margin:6px 0 0;padding-left:1.2em}@media (max-width:760px){.sheet-grid{grid-template-columns:repeat(2,1fr)}}@media print{.site-header,.site-footer,.no-print,.skip{display:none!important}body{color:#000;background:#fff;font-size:12pt}.sheet{break-after:page;border:0;padding:0}.sheet-grid{grid-template-columns:repeat(4,1fr)}.page-head{padding:0 0 12pt}.answers{break-before:auto}}