/* Chengel: the layout of the other app sites (fixed header with an overlay menu, hairline frames, pill buttons,
   scroll reveals) painted with the app's own palette (docs/chengel-design/tokens.json): paper blue, navy ink,
   the purple brand colour, meadow green and gold coins. JetBrains Mono everywhere; Yagmur Hand for the
   highlighted word, as in the App Store screenshots. No third-party requests. */
@font-face{font-family:"JBM";src:url(assets/fonts/JetBrainsMono-Regular.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"JBM";src:url(assets/fonts/JetBrainsMono-Medium.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"JBM";src:url(assets/fonts/JetBrainsMono-Bold.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Hand";src:url(assets/fonts/YagmurHand-Regular.woff2) format("woff2");font-display:swap}
:root{
  --paper:#ecf2fe;--raised:#f8faff;--sunken:#dde8fd;--wash:#cadbfc;--sky:#94b7f8;
  --ink:#000131;--muted:#41436b;--primary:#44086a;--purple-hi:#5a1388;--purple-lo:#2b0447;--on-primary:#f6effc;
  --written:#2552c8;--gold:#f4bd3f;--meadow:#cfe7c7;--meadow-hi:#e2f1dc;--meadow-lo:#b7d9ae;--leaf:#2f4a33;
  --mono:"JBM",ui-monospace,"SF Mono",Menlo,Consolas,monospace;--hand:"Hand","Bradley Hand","Segoe Print",cursive;
  --ease:cubic-bezier(.65,.05,.36,1);--bounce:cubic-bezier(.23,.82,.6,2);--t:.26s;
  --gutter:clamp(1.25rem,4vw,2.75rem);--max:1200px;
  --side:max(var(--gutter),calc((100vw - var(--max))/2 + var(--gutter)));
  --line:2px solid var(--ink);--lift:0 5px 0 var(--ink);
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--mono);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
body.nav-locked{overflow:hidden}
a{color:inherit}
img{max-width:100%}
h1,h2,h3{font-weight:700;letter-spacing:-.03em;color:var(--ink);margin-top:0}
em{font-family:var(--hand);font-style:normal;font-weight:400;font-size:1.28em;line-height:1;letter-spacing:0;color:var(--primary)}
:focus-visible{outline:3px solid var(--written);outline-offset:3px}
.skip{position:fixed;top:-6rem;left:1rem;background:var(--gold);color:var(--ink);padding:.8rem 1rem;z-index:300;font-weight:700}
.skip:focus{top:1rem}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- Header and overlay menu ---------- */
.nav{position:fixed;z-index:200;top:0;left:0;width:100%;height:100px;padding:22px var(--gutter) 0;display:flex;align-items:flex-start;justify-content:space-between;pointer-events:none;color:var(--ink);transition:color var(--t) var(--ease)}
.nav>*{pointer-events:auto}
.nav.scrolled:not(.nav-open){background:linear-gradient(var(--paper) 55%,rgba(236,242,254,0))}
.nav.on-dark:not(.nav-open){color:var(--on-primary);background:none}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;font-weight:700;font-size:1.35rem;line-height:1;letter-spacing:-.03em;transition:transform var(--t) var(--ease)}
.brand:hover{transform:scale(1.05) rotate(-1.5deg)}
.brand img{border-radius:23%;border:var(--line);transition:transform .5s var(--bounce)}
.brand:hover img{transform:rotate(-10deg) scale(1.1)}
.brand small{display:block;font-size:.62rem;font-weight:500;letter-spacing:.02em;margin-top:.3rem;opacity:.75}
.nav-toggle{position:relative;width:46px;height:46px;padding:0;border:0;background:none;cursor:pointer;z-index:2}
.nav-toggle:before{content:"";position:absolute;inset:0;border-radius:14px;background:var(--raised);border:var(--line);box-shadow:0 4px 0 var(--ink);transition:transform var(--t) var(--bounce)}
.nav-toggle:hover:before,.nav-toggle:focus-visible:before{transform:scale(1.12) rotate(-4deg)}
.nav-toggle span:not(.sr-only){position:absolute;left:13px;width:20px;height:2.5px;border-radius:2px;background:var(--ink);transform-origin:center;transition:transform .36s var(--ease)}
.nav-toggle span:nth-child(2){top:17px}.nav-toggle span:nth-child(3){top:26px}
.nav-toggle[aria-expanded=true] span:nth-child(2){transform:translateY(4.5px) rotate(45deg)}
.nav-toggle[aria-expanded=true] span:nth-child(3){transform:translateY(-4.5px) rotate(-45deg)}
.nav nav{position:fixed;inset:0;height:100vh;z-index:-1;background:var(--meadow);display:flex;flex-direction:column;justify-content:center;align-items:center;gap:.3rem;opacity:0;visibility:hidden;transform:scale(1.04);transition:opacity .3s var(--ease),transform .4s var(--ease),visibility 0s .4s}
.nav nav.open{opacity:1;visibility:visible;transform:none;transition-delay:0s}
.nav nav a{font-weight:700;font-size:clamp(2.2rem,7vw,4.6rem);line-height:1.08;letter-spacing:-.05em;text-decoration:none;color:var(--ink);opacity:0;transform:translateY(24px);transition:opacity .4s var(--ease),transform .5s var(--ease),color .2s}
.nav nav.open a{opacity:1;transform:none}
.nav nav.open a:nth-child(1){transition-delay:.08s}.nav nav.open a:nth-child(2){transition-delay:.13s}.nav nav.open a:nth-child(3){transition-delay:.18s}.nav nav.open a:nth-child(4){transition-delay:.23s}.nav nav.open a:nth-child(5){transition-delay:.28s}
.nav nav a:hover{color:var(--primary)}
.nav nav a.pill{margin-top:1.5rem;background:var(--primary);color:var(--on-primary);padding:.95rem 2rem;border-radius:30px;border:var(--line);box-shadow:var(--lift);font-weight:700;font-size:1rem;letter-spacing:0}
.nav nav a.pill:hover{color:var(--on-primary);background:var(--purple-hi)}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100svh;padding:8.5rem var(--side) 10rem;background:linear-gradient(180deg,#c9dafc 0%,#e4ecfd 62%,#d6ebcf 100%);display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center;overflow:hidden}
.hero-copy{position:relative;z-index:2}
.kicker{display:inline-block;margin:0 0 1.4rem;background:var(--gold);color:var(--ink);padding:.3rem .65rem;border:var(--line);border-radius:8px;font-size:.75rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase}
h1{font-size:clamp(2.6rem,5.4vw,72px);line-height:1;letter-spacing:-.055em;margin-bottom:1.5rem}
h1 em{display:inline-block;font-size:1.12em;transform:rotate(-2deg)}
.nowrap{white-space:nowrap}
.lede{font-size:clamp(1.05rem,1.7vw,1.2rem);line-height:1.6;max-width:34rem;margin:0;color:var(--muted)}
.actions{display:flex;align-items:center;gap:1.5rem;flex-wrap:wrap;margin-top:2.2rem}
.button{display:inline-flex;align-items:center;gap:.6rem;background:var(--primary);color:var(--on-primary);border:var(--line);border-radius:30px;padding:.9rem 1.8rem;font-weight:700;text-decoration:none;box-shadow:var(--lift);transition:transform var(--t) var(--bounce),background-color var(--t)}
.button img{width:26px;height:26px;margin:-4px 0;padding:2px;background:var(--raised);border-radius:50%}
a.button:hover{transform:translateY(-2px) scale(1.04);background:var(--purple-hi)}
.soft-link{font-weight:700;color:var(--written);text-decoration:none;border-bottom:2px solid var(--written);padding-bottom:2px;transition:color .2s,border-color .2s}
.soft-link:hover{color:var(--primary);border-color:var(--primary)}
.meta{font-size:.78rem;margin:1.6rem 0 0;color:var(--muted)}
.hero-art{position:relative;z-index:1;min-height:720px;isolation:isolate}
.hero-art:before{content:"";position:absolute;inset:7% 4% 4% 12%;background:linear-gradient(165deg,var(--purple-hi),var(--primary) 45%,var(--purple-lo));border:var(--line);border-radius:28px;z-index:-1;transform:rotate(3deg);transition:transform .6s var(--ease)}
.hero-art:hover:before{transform:rotate(-1deg)}
.phone{position:absolute;width:min(68%,320px);height:auto;right:14%;top:2%;border:9px solid #0d0d16;border-radius:46px;background:var(--paper);box-shadow:0 30px 60px rgba(0,1,49,.3)}
.hero-demo{aspect-ratio:590/1282;object-fit:cover}
.cengo{position:absolute;width:34%;height:auto;left:-4%;bottom:2%;z-index:3;animation:bob 3.2s var(--ease) infinite alternate}
@keyframes bob{to{transform:translateY(-12px) rotate(-3deg)}}
.clue-card{position:absolute;z-index:4;left:-6%;top:12%;display:grid;gap:.7rem;background:var(--raised);border:var(--line);border-radius:16px;padding:1rem 1.1rem;box-shadow:var(--lift);animation:bob 4s var(--ease) infinite alternate-reverse}
.clue{display:inline-block;background:var(--wash);border-radius:8px;padding:.2rem .6rem;font-weight:700;font-size:1.05rem}
.clue b{color:var(--muted);font-weight:500}
.answer{display:flex;gap:.3rem}
.answer i,.float-tile{display:grid;place-items:center;width:38px;height:38px;background:var(--raised);border:var(--line);border-radius:8px;box-shadow:0 3px 0 var(--ink);font-family:var(--hand);font-style:normal;font-size:1.7rem;line-height:1;color:var(--written)}
.answer i{opacity:0;transform:translateY(-14px) scale(.6);animation:drop .45s var(--bounce) forwards}
.answer i:nth-child(1){animation-delay:1.1s}.answer i:nth-child(2){animation-delay:1.3s}.answer i:nth-child(3){animation-delay:1.5s}.answer i:nth-child(4){animation-delay:1.7s}.answer i:nth-child(5){animation-delay:1.9s}
@keyframes drop{to{opacity:1;transform:none}}
.float-tile{position:absolute;z-index:2;width:58px;height:58px;font-size:2.6rem;box-shadow:0 5px 0 var(--ink);animation:bob 5s var(--ease) infinite alternate}
.float-tile.t1{right:2%;top:6%;transform:rotate(10deg);animation-duration:4.4s}
.float-tile.t2{right:-2%;top:56%;animation-duration:5.2s;animation-direction:alternate-reverse}
.float-tile.t3{left:16%;top:58%;animation-duration:3.8s}
.hill{position:absolute;left:-10%;right:-10%;bottom:-54vw;height:62vw;max-height:none;background:var(--meadow);border-top:3px solid var(--ink);border-radius:50%;z-index:0;pointer-events:none}
.hill img{position:absolute;top:-58px;width:56px;height:auto;transform-origin:50% 100%;animation:sway 3.6s ease-in-out infinite alternate}
.hill img:nth-child(odd){animation-duration:4.4s;animation-direction:alternate-reverse}
.hill img:nth-child(2n){top:-46px;width:44px}
@keyframes sway{from{transform:rotate(-4deg)}to{transform:rotate(4deg)}}

/* hero load-in */
.js .hero-copy>*{opacity:0;transform:translateY(36px);animation:rise .9s var(--ease) forwards}
.js .hero-copy>:nth-child(1){animation-delay:.1s}.js .hero-copy>:nth-child(2){animation-delay:.22s}.js .hero-copy>:nth-child(3){animation-delay:.4s}.js .hero-copy>:nth-child(4){animation-delay:.55s}.js .hero-copy>:nth-child(5){animation-delay:.68s}
.js .hero-art{opacity:0;transform:translateY(40px);animation:rise 1s var(--ease) .35s forwards}
@keyframes rise{to{opacity:1;transform:none}}

/* ---------- Bands and sections ---------- */
.note{background:var(--gold);color:var(--ink);border-block:var(--line);padding:1.1rem var(--gutter);display:flex;justify-content:center;gap:1rem;text-align:center;font-weight:500}
.note strong{font-weight:700}
.section{padding:clamp(4rem,8vw,6rem) var(--side)}
.section-title{text-align:center;max-width:820px;margin:0 auto 3.5rem}
.section h2,.section-title h2{font-size:clamp(2rem,5vw,52px);line-height:1.05;letter-spacing:-.05em;margin-bottom:1.1rem}
.section-title .kicker{margin-bottom:1.2rem}
.section-title>p:last-child{font-size:1.1rem;line-height:1.6;color:var(--muted);max-width:560px;margin:0 auto}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.steps article{min-height:330px;padding:24px;display:flex;flex-direction:column;border:var(--line);border-radius:22px;box-shadow:0 6px 0 var(--ink);background:linear-gradient(165deg,var(--purple-hi),var(--primary));color:var(--on-primary);transition:transform .35s var(--bounce)}
.steps article:nth-child(2){background:var(--sky);color:var(--ink)}
.steps article:nth-child(3){background:var(--meadow);color:var(--ink)}
.steps article:hover{transform:translateY(-6px) rotate(-.8deg)}
.steps span{display:grid;place-items:center;width:56px;height:56px;border-radius:12px;background:var(--raised);color:var(--written);border:var(--line);box-shadow:0 4px 0 var(--ink);font-family:var(--hand);font-size:2rem;line-height:1}
.steps h3{font-size:clamp(1.5rem,2.6vw,28px);line-height:1.12;color:inherit;margin:auto 0 .6rem}
.steps p{margin:0;font-size:.95rem}

.watch{background:linear-gradient(165deg,var(--purple-hi) 0%,var(--primary) 45%,var(--purple-lo) 100%);border-block:var(--line)}
.watch h2,.watch .section-title>p:last-child{color:var(--on-primary)}
.watch em{color:var(--gold)}
.watch .section-title>p:last-child{opacity:.85}
.promo{margin:0 auto;max-width:1000px;border:var(--line);border-radius:22px;background:var(--raised);padding:12px;box-shadow:0 8px 0 var(--ink)}
.promo video{display:block;width:100%;height:auto;aspect-ratio:16/9;background:var(--paper);border:var(--line);border-radius:12px}

.gallery{background:var(--raised);border-bottom:var(--line);overflow:hidden}
.gallery em{color:var(--written)}
.carousel{width:100vw;margin-left:calc(50% - 50vw);overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-width:none;cursor:grab;touch-action:pan-x pan-y pinch-zoom;padding:1rem var(--side) 1.5rem}
.carousel::-webkit-scrollbar{display:none}
.carousel:active{cursor:grabbing}
.carousel:focus-visible{outline:3px solid var(--written);outline-offset:-5px}
.carousel-track{display:flex;width:max-content;gap:24px}
.carousel figure{flex:none;width:clamp(190px,23vw,290px);margin:0}
.carousel img{display:block;width:100%;height:auto;border:var(--line);border-radius:18px;-webkit-user-drag:none;user-select:none}

.features{background:var(--meadow-hi);border-bottom:var(--line)}
.features em{color:var(--leaf)}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feature-grid article{background:var(--raised);border:var(--line);border-radius:18px;padding:1.4rem;box-shadow:0 5px 0 var(--ink);transition:transform .35s var(--bounce)}
.feature-grid article:hover{transform:translateY(-4px) rotate(.6deg)}
.feature-grid img{display:block;width:64px;height:64px}
.feature-grid h3{font-size:1.2rem;margin:.8rem 0 .4rem;letter-spacing:-.02em}
.feature-grid p{margin:0;font-size:.95rem;color:var(--muted)}

.faq{max-width:860px;margin:0 auto}
.faq h2{font-size:clamp(2rem,5vw,52px);letter-spacing:-.05em}
.faq details{border-top:var(--line);padding:1.1rem 0;transition:padding-left var(--t) var(--ease)}
.faq details:last-of-type{border-bottom:var(--line)}
.faq details[open]{padding-left:.8rem}
.faq summary{cursor:pointer;font-weight:700;font-size:1.15rem;letter-spacing:-.02em}
.faq summary::marker{color:var(--primary)}
.faq details p{color:var(--muted);margin:.6rem 0 0}
.faq a{color:var(--written)}

.support{text-align:center;display:flex;flex-direction:column;align-items:center;gap:1.6rem;background:var(--sunken);border-top:var(--line);padding-top:clamp(4rem,8vw,6rem)}
.support>div{max-width:740px}
.support h2{font-size:clamp(2.6rem,7vw,80px);line-height:1;letter-spacing:-.055em;margin-bottom:1rem}
.support p{font-size:1.1rem;color:var(--muted)}
.support .kicker{margin-bottom:1.2rem}
.support .button{font-size:1.1rem}
.support-cengo{width:160px;height:auto;animation:bob 3s var(--ease) infinite alternate}

footer{background:var(--ink);color:var(--on-primary);padding:2.6rem var(--side);display:grid;grid-template-columns:1fr auto;align-items:center;gap:1.25rem 2rem;font-size:.875rem}
footer .brand{color:var(--on-primary);font-size:1.3rem;border:0}
footer .brand img{border-color:var(--on-primary)}
footer>div{display:flex;gap:1.4rem;flex-wrap:wrap}
footer a{text-decoration:none;border-bottom:2px solid var(--sky);transition:color .2s}
footer a:hover{color:var(--gold)}
footer p{margin:0}
.more-apps{grid-column:1/-1}

/* ---------- Legal pages and 404 ---------- */
.page{padding:8.5rem var(--side) 5rem;min-height:70vh}
.prose{max-width:820px;margin:0 auto}
.prose h1{font-size:clamp(2.4rem,6vw,64px);margin-bottom:.6rem}
.prose h2{font-size:clamp(1.5rem,3.4vw,30px);letter-spacing:-.03em;margin:2.6rem 0 .6rem;padding-top:1.2rem;border-top:var(--line)}
.prose h3{font-size:1.1rem;margin:1.6rem 0 .4rem;color:var(--primary)}
.prose p,.prose li,.prose dd{color:var(--muted)}
.prose a{color:var(--written)}
.prose ul{padding-left:22px}
.prose li{margin:4px 0}
.prose .updated{font-size:.9rem}
.prose dt{font-weight:700;margin-top:12px}
.prose dd{margin:2px 0 0}
.lost{text-align:center}
.lost img{display:block;width:200px;height:auto;margin:0 auto 1rem}

/* ---------- Scroll reveal ---------- */
.js [data-reveal]{opacity:0;transform:translateY(24px);transition:opacity .5s var(--ease),transform .5s var(--ease);transition-delay:var(--d,0s)}
.js [data-reveal].in{opacity:1;transform:none}

@media(max-width:860px){
  .hero{grid-template-columns:1fr;padding-top:8rem;gap:2rem;min-height:auto;padding-bottom:8rem}
  .hero-art{min-height:640px}
  .phone{right:12%}
  .steps,.feature-grid{grid-template-columns:1fr}
  .steps article{min-height:250px}
  footer{grid-template-columns:1fr}
}
@media(min-width:861px) and (max-width:1080px){.feature-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:460px){
  .hero-art{min-height:560px}
  .phone{width:66%;right:6%}
  .cengo{width:40%;left:-2%}
  .clue-card{left:-2%;top:4%;padding:.8rem}
  .answer i{width:32px;height:32px;font-size:1.4rem}
  .float-tile.t3{display:none}
  .note{flex-direction:column;gap:.2rem}
  .hill img{width:40px;top:-42px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*:before,*:after{animation:none!important;transition:none!important}
  .js .hero-copy>*,.js .hero-art,.js [data-reveal],.answer i{opacity:1;transform:none}
}