:root{color-scheme:light;--canvas:#fffaf3;--paper:#fff;--ink:#211d19;--muted:#665d54;--line:#e2d8cb;--action:#ff9d52;--focus:#954000}
html.dark{color-scheme:dark;--canvas:#1b1917;--paper:#24211e;--ink:#fff4e8;--muted:#c8bfb3;--line:#4b423a;--focus:#ffb77f}
*{box-sizing:border-box}body{margin:0;background:var(--canvas);color:var(--ink);font-family:"DM Sans",sans-serif;font-size:1rem;line-height:1.6}a{color:inherit}button{font:inherit;color:inherit}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--focus);outline-offset:5px}.shell{width:min(1180px,calc(100% - 48px));margin-inline:auto}.skip{position:absolute;top:0;left:16px;transform:translateY(-150%);padding:12px;background:var(--ink);color:var(--canvas);z-index:2}.skip:focus{transform:none}.topbar{min-height:104px;display:flex;justify-content:space-between;align-items:center;gap:24px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;min-height:48px}.brand img{object-fit:contain;max-width:100%}html.dark .brand img{background:#fffaf3;border-radius:8px;padding:4px}nav{display:flex;align-items:center;gap:24px;flex-wrap:wrap}nav a{text-decoration:none;padding-block:12px}nav button{border:1px solid var(--line);background:transparent;border-radius:12px;padding:10px 14px;min-height:44px;cursor:pointer}.hero{display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:48px;padding:80px 0 72px}.eyebrow{font-size:.95rem;font-weight:700;color:var(--muted);margin:0 0 20px}h1,h2,h3{font-family:"Bricolage Grotesque",sans-serif;line-height:1.06;letter-spacing:-.04em}h1{font-size:clamp(3.1rem,5.5vw,5.1rem);margin:0;font-weight:800}h1 span{color:var(--muted)}.intro{font-size:1.13rem;max-width:45ch;margin:28px 0 30px}.download{display:flex;align-items:center;gap:24px;flex-wrap:wrap}.button{display:inline-flex;justify-content:center;align-items:center;gap:20px;text-decoration:none;min-height:54px;padding:14px 22px;font-weight:700;border-radius:16px;line-height:1.3}.primary{background:var(--action);color:#211d19}.primary[aria-disabled=true]{background:var(--line);color:var(--muted);cursor:wait}.secondary{border:1px solid var(--line);background:var(--paper)}.web-link{padding-block:14px;text-underline-offset:5px}.release-status{font-size:.96rem;color:var(--muted);max-width:52ch;margin:20px 0 0}.release-meta{font-size:.9rem;color:var(--muted);margin-top:8px}.hero-art{margin:0;text-align:center}.hero-art img{width:100%;height:auto;max-width:490px;display:block;margin:auto}.hero-art figcaption{color:var(--muted);font-size:.95rem;margin-top:8px}.getting-started{display:grid;grid-template-columns:1fr 1.25fr;gap:80px;border-block:1px solid var(--line);padding-block:56px}h2{font-size:clamp(2rem,3vw,3rem);margin:0 0 20px}h3{font-size:1.25rem;margin:0 0 8px;letter-spacing:-.02em}.getting-started p,.beta-note p{color:var(--muted);max-width:63ch}.getting-started ol{list-style:none;padding:0;margin:0}.getting-started li{display:flex;gap:24px;padding:0 0 30px}.getting-started li:last-child{padding-bottom:0}.getting-started li p{margin:0}.step{font-family:"Bricolage Grotesque",sans-serif;font-weight:800;font-size:1.35rem;color:var(--muted);padding-top:1px}.beta-note{padding:56px 0;max-width:760px}.beta-note .button{margin-top:12px}details{padding:24px 0;border-top:1px solid var(--line);margin-bottom:30px}summary{cursor:pointer;min-height:44px;padding-block:10px;font-weight:600}dl{display:grid;grid-template-columns:180px 1fr;gap:12px 24px;font-size:.92rem}dt{font-weight:700}dd{margin:0;overflow-wrap:anywhere;color:var(--muted)}footer{display:flex;justify-content:space-between;align-items:center;gap:24px;padding-block:30px;border-top:1px solid var(--line);color:var(--muted);font-size:.92rem}[hidden]{display:none!important}
@media(max-width:760px){.shell{width:calc(100% - 36px)}.topbar{min-height:88px;gap:16px}.brand img{width:124px}.topbar nav{gap:10px}.topbar nav a{display:none}.topbar nav button{font-size:.9rem}.hero{grid-template-columns:1fr;gap:24px;padding:44px 0}.hero-art img{max-width:300px}.hero-art figcaption{margin-top:0}.intro{font-size:1.05rem}.download{gap:12px}.primary{width:100%}.getting-started{grid-template-columns:1fr;gap:24px;padding-block:36px}.getting-started>div>p:last-child{margin-bottom:0}.getting-started li{gap:18px}.beta-note{padding-block:36px}dl{grid-template-columns:1fr;gap:6px}dd{margin-bottom:14px}footer{display:block}footer nav{gap:20px;margin-top:8px}}
@media(prefers-reduced-motion:no-preference){a,button{transition:background-color .15s,color .15s}.primary:not([aria-disabled=true]):hover{background:#ffb77f}}

/* The original TigerGo flight composition, shared with the landing page. */
.beta-flight{position:relative;isolation:isolate;width:100%;aspect-ratio:1.08;display:grid;place-items:center}
.hero-art .beta-tigo{position:relative;z-index:1;width:100%;max-width:490px;height:auto}
.hero-art .beta-ribbon{position:absolute;z-index:0;max-width:none;width:78%;height:auto;pointer-events:none}
.hero-art .beta-ribbon--sweep{top:4%;left:1%;transform:rotate(-12deg)}
.hero-art .beta-ribbon--loop{bottom:4%;right:0;width:64%;transform:rotate(15deg)}
.hero-art .beta-subject{position:absolute;z-index:2;width:clamp(48px,6vw,76px);height:auto;pointer-events:none}
.beta-subject--math{left:1%;top:22%;transform:rotate(-12deg)}
.beta-subject--notebook{right:2%;top:7%;transform:rotate(9deg)}
.beta-subject--tasks{right:2%;bottom:15%;transform:rotate(12deg)}
@media(max-width:760px){.beta-flight{max-width:370px;margin:auto}.hero-art .beta-tigo{max-width:350px}.hero-art .beta-subject{width:58px}}


.store-notice{padding:16px 0 16px 20px;border-left:4px solid var(--action);margin-bottom:28px;max-width:52ch;color:var(--muted)}.store-notice strong{display:block;color:var(--ink);margin-bottom:4px}.retry{display:block;margin-top:16px;min-height:48px;border:1px solid var(--line);border-radius:12px;background:var(--paper);padding:10px 18px;cursor:pointer}h1{overflow-wrap:anywhere}
.step{flex-shrink:0;white-space:nowrap;min-width:2ch}