@font-face{font-family:Bricolage;src:url('/assets/bricolage-grotesque.ttf') format('truetype');font-weight:700;font-display:swap}
@font-face{font-family:DM;src:url('/assets/dm-sans.ttf') format('truetype');font-weight:400;font-display:swap}
:root{--paper:#f6f3eb;--ink:#1e2320;--muted:#5b625c;--pine:#2f5b45;--line:#e3ddd0;--green:#d7e7dc;--orange:#a8431b;--radius:24px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:32px}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.65 DM,Arial,sans-serif}a{color:inherit;text-underline-offset:5px}button{font:inherit}img{display:block;max-width:100%;height:auto}h1,h2,h3,.brand{font-family:Bricolage,Arial,sans-serif;line-height:1.05;letter-spacing:-.045em}h1,h2,h3,p,figure{margin:0}h1{font-size:clamp(48px,5.6vw,78px);margin:25px 0}h2{font-size:clamp(38px,4.3vw,58px);margin:20px 0 30px}h3{font-size:30px;letter-spacing:-.035em}.wrap{width:min(1200px,calc(100% - 80px));margin:auto}.accent{color:var(--pine)}.header{display:flex;justify-content:space-between;align-items:center;padding:30px 0}.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-size:28px;letter-spacing:-1.1px}.brand-dot{color:var(--pine);margin-left:-8px}.header nav,.footer nav{display:flex;gap:30px;font-size:14px}.header nav a,.footer nav a{text-decoration:none}.header nav a:hover,.footer nav a:hover{text-decoration:underline}.eyebrow{font-size:12px;font-weight:bold;letter-spacing:.13em;text-transform:uppercase;display:inline-flex;gap:9px;align-items:center}.status-dot{width:7px;height:7px;border-radius:50%;background:var(--pine)}.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:65px;align-items:center;padding:44px 0 68px}.hero-description{max-width:440px;font-size:19px;line-height:1.65;color:var(--muted)}.hero-actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-top:32px}.button{display:inline-flex;align-items:center;justify-content:center;gap:20px;padding:15px 23px;border-radius:12px;background:var(--pine);color:white;text-decoration:none;font-size:15px;line-height:1.4;font-weight:bold;transition:background .15s}.button:hover{background:#224633}.text-link{font-size:14px;font-weight:bold;text-decoration:none;border-bottom:1px solid var(--ink);padding-bottom:4px}.release-note{font-size:12px;color:var(--muted);margin-top:13px}.hero-footnote{margin-top:47px;font-size:14px;display:flex;align-items:center;gap:13px}.hero-footnote span{font-size:31px;color:var(--pine)}.hero-visual{background:#e8e6d9;border-radius:28px;padding:20px 30px 23px;position:relative;overflow:hidden}.visual-top{display:flex;justify-content:space-between;align-items:center;font-size:10px;letter-spacing:.14em;color:var(--pine);font-weight:bold}.visual-top span:last-child{font-size:35px;line-height:1}.phone{width:252px;margin:8px auto 21px;border:7px solid #273b30;border-radius:29px;overflow:hidden;box-shadow:10px 16px 0 #d2d4c5;transform:rotate(3deg);background:var(--paper)}.hero-visual figcaption{display:flex;align-items:center;justify-content:center;gap:12px;font-size:12px;line-height:1.5;color:var(--muted)}.hero-visual strong{color:var(--ink)}.caption-mark{font-size:35px;color:var(--pine)}.principles{border-block:1px solid var(--line);background:#eeeadf}.principles .wrap{display:flex;align-items:center;justify-content:space-between;padding:21px 0;font-size:13px}.separator{font-size:20px;color:var(--pine)}.section{padding-top:96px;padding-bottom:88px}.section-heading{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:center;margin-bottom:24px}.section-heading p{max-width:380px;color:var(--muted)}.puzzle-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.puzzle-panel{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);padding:28px 26px 0}.maths{background:#f5e7dc}.sudoku{background:#e7ebf5}.chess{background:#eee6d5}.puzzle-copy .eyebrow{font-size:10px;letter-spacing:.12em}.puzzle-copy h3{margin:18px 0 14px}.puzzle-copy p{font-size:14px;line-height:1.7;min-height:72px;color:var(--muted)}.category-label{display:inline-block;font-size:10px;line-height:1.5;margin:18px 0 24px;padding:5px 10px;background:#ffffffa6;border-radius:30px}.screenshot-link{display:block;position:relative;max-width:240px;margin:auto;text-decoration:none;border:5px solid #ffffffa0;border-bottom:0;border-radius:20px 20px 0 0;overflow:hidden;height:350px;background:var(--paper)}.screenshot-link img{width:100%}.enlarge{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);white-space:nowrap;background:var(--ink);color:white;font-size:11px;padding:7px 12px;border-radius:8px}.gallery-note{font-size:12px;color:var(--muted);margin-top:18px}.more-puzzles{margin-top:38px;padding-top:27px;border-top:1px solid var(--line)}.more-puzzles>span{font-size:12px;font-weight:bold;text-transform:uppercase;letter-spacing:.1em}.more-puzzles p{margin:12px 0;font-size:clamp(20px,2vw,24px);line-height:1.5;font-weight:600}.more-puzzles small{font-size:12px;color:var(--muted)}.how{background:var(--pine);color:var(--paper)}.how .eyebrow{color:#d7e7dc}.steps{padding:0;margin:43px 0 0;list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:60px}.step-number{display:inline-flex;border:1px solid #8caa98;border-radius:50%;width:43px;height:43px;align-items:center;justify-content:center;font-size:13px;margin-bottom:23px;color:#d7e7dc}.steps h3{font-size:25px;margin-bottom:16px}.steps p{color:#e0e8df;font-size:15px}.control-note{border-top:1px solid #668570;margin-top:44px;padding-top:28px;display:flex;align-items:center;gap:25px;font-size:13px;color:#d7e7dc}.control-note>span{font-size:30px}.privacy-section{display:grid;grid-template-columns:1fr 1fr;gap:100px;border-bottom:1px solid var(--line)}.privacy-section h2{font-size:43px}.privacy-copy p{margin-bottom:19px;color:var(--muted);font-size:15px}.privacy-copy .text-link{display:inline-block;margin-top:6px}.faq{max-width:850px}.faq details{border-bottom:1px solid var(--line);padding:20px 0}.faq summary{font-family:Bricolage,Arial,sans-serif;font-size:19px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px}.faq summary::-webkit-details-marker{display:none}.faq summary::after{content:'+';color:var(--pine);font-size:24px;line-height:1}.faq details[open] summary::after{content:'−'}.faq details p{color:var(--muted);font-size:15px;max-width:720px;padding:18px 25px 0 0}.closing{background:var(--green);padding:55px 40px 60px;border-radius:28px;text-align:center;margin-bottom:70px}.closing h2{font-size:clamp(40px,4.8vw,65px)}.footer{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:0 0 35px}.footer .brand{font-size:23px}.footer p{font-size:11px;color:var(--muted)}.footer nav{font-size:12px;gap:20px}.skip{position:fixed;top:-80px;left:20px;z-index:20;background:white;padding:12px}.skip:focus{top:12px}:focus-visible{outline:3px solid var(--orange);outline-offset:5px}dialog{padding:45px 12px 12px;border:0;border-radius:20px;max-height:92vh;max-width:min(520px,95vw);background:var(--paper)}dialog::backdrop{background:#142218d9}dialog img{max-height:78vh;width:auto;margin:auto}.dialog-close{position:absolute;right:12px;top:9px;border:0;background:transparent;color:var(--pine);font-weight:bold;cursor:pointer;padding:4px 9px}.legal{max-width:800px;padding:60px 0 90px}.legal h1{font-size:52px}.legal h2{font-size:26px;margin:36px 0 14px}.legal p{margin:0 0 18px;color:var(--muted)}.legal .intro{font-size:19px}.legal .policy-meta{border-block:1px solid var(--line);padding:20px 0;margin:30px 0}.legal .policy-meta p{margin:0}.support-box{background:var(--green);padding:30px;border-radius:20px;margin:30px 0}.support-box h2{margin-top:0}.support-box p{margin-bottom:12px}.legal ul{color:var(--muted);padding-left:22px}.notice{padding:16px 20px;background:#f5e7dc;border-radius:12px;font-size:14px}.legal .notice{color:var(--ink)}
@media(min-width:1400px){.hero{gap:100px}}
@media(max-width:1000px){.wrap{width:calc(100% - 48px)}.hero{gap:35px}.phone{width:220px}.hero-visual{padding-inline:20px}.section-heading,.privacy-section{gap:45px}.steps{gap:30px}.puzzle-panel{padding:24px 18px 0}.puzzle-copy h3{font-size:27px}.footer{flex-wrap:wrap}.footer p{order:3;width:100%}}
@media(max-width:700px){.wrap{width:calc(100% - 40px)}.header{padding:22px 0}.header .brand{font-size:25px}.header nav{gap:17px;font-size:12px}.header nav a:first-child{display:none}.hero{grid-template-columns:1fr;padding:35px 0 44px;gap:35px}.hero h1{font-size:clamp(46px,10vw,65px)}.hero-description{font-size:17px;max-width:440px}.hero-actions{gap:18px}.hero-footnote{margin-top:25px}.hero-visual{max-width:450px;width:100%;margin:auto;padding:19px 22px 22px}.phone{width:235px}.principles .wrap{display:grid;grid-template-columns:1fr 1fr;gap:11px;padding:18px 0;font-size:12px}.separator{display:none}.section{padding:60px 0}.section-heading{grid-template-columns:1fr;gap:0;margin-bottom:28px}.section-heading h2{margin-bottom:20px}.section-heading p{max-width:100%}.puzzle-gallery{grid-template-columns:1fr;gap:20px}.puzzle-panel{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:25px 18px 0}.puzzle-copy h3{font-size:27px}.puzzle-copy p{font-size:13px;min-height:0}.category-label{font-size:9px;padding:5px 8px;margin-top:13px}.screenshot-link{height:285px;width:100%;align-self:end;border-width:4px}.enlarge{font-size:9px;padding:6px 9px}.steps{grid-template-columns:1fr;gap:32px;margin-top:32px}.steps li{position:relative;padding-left:67px}.step-number{position:absolute;left:0;top:0}.steps h3{font-size:25px;margin-bottom:10px}.privacy-section{grid-template-columns:1fr;gap:6px}.privacy-section h2{font-size:38px}.closing{padding:38px 20px;margin-bottom:45px}.closing .eyebrow{font-size:10px}.footer{gap:24px}.footer nav{margin-left:auto}.legal{padding-top:35px}.legal h1{font-size:42px}.faq summary{font-size:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}}
.logic{background:#e4eee7}
@media(max-width:700px){.hero h1{font-size:clamp(36px,10.5vw,46px)}}