:root{
  --paper:#FAF7F1;
  --paper-2:#F2ECE1;
  --ink:#16130E;
  --ink-soft:#5A5247;
  --yellow:#FFB93D;
  --yellow-deep:#FFB93D;
  --dark:#14110D;
  --dark-soft:#9A9183;
  --line:rgba(22,19,14,.10);
  --r:22px;
  --display:"Bricolage Grotesque",sans-serif;
  --body:"Hanken Grotesk",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--body);
  background:var(--paper);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
a{color:inherit;text-decoration:none}

/* grain overlay */
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:9999;opacity:.04;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* nav */
nav{position:absolute;top:0;left:0;right:0;z-index:50}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:84px}
.mark{font-family:var(--display);font-weight:800;font-size:24px;letter-spacing:-.02em;display:flex;align-items:center;gap:9px}
.mark .dot{width:15px;height:15px;border-radius:50%;background:var(--yellow);box-shadow:0 0 0 5px rgba(255,185,61,.22)}
.nav-cta{font-weight:600;font-size:17px;padding:13px 23px;border:2px solid var(--ink);border-radius:100px;transition:.25s}
.nav-cta:hover{background:var(--ink);color:var(--paper)}

/* hero */
header{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden}
.glow{position:absolute;border-radius:50%;filter:blur(80px);opacity:.7;z-index:0}
.g1{width:680px;height:680px;background:radial-gradient(circle,rgba(255,185,61,.85),transparent 68%);top:-200px;right:-170px;opacity:.95}
.g2{width:480px;height:480px;background:radial-gradient(circle,rgba(255,185,61,.30),transparent 65%);bottom:-220px;left:-120px}
.hero{position:relative;z-index:2;text-align:center;width:100%;padding:120px 0 80px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:13.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);background:rgba(255,255,255,.6);border:1px solid var(--line);padding:8px 16px;border-radius:100px;margin-bottom:34px;backdrop-filter:blur(6px)}
.eyebrow .pulse{width:8px;height:8px;border-radius:50%;background:var(--yellow-deep);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.5);opacity:.4}}
h1{font-family:var(--display);font-weight:800;font-size:clamp(34px,7.5vw,90px);line-height:1.0;letter-spacing:-.03em;max-width:25ch;margin:0 auto}
h1 .accent{color:var(--yellow-deep)}
.hero p{max-width:560px;margin:30px auto 0;font-size:clamp(17px,2.3vw,20px);line-height:1.55;color:var(--ink-soft)}
.hero-cta{margin-top:44px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-trust{margin-top:24px;font-size:13.5px;letter-spacing:.01em;color:var(--ink-soft);font-weight:500}
.btn{font-family:var(--body);font-weight:700;font-size:16px;padding:16px 30px;border-radius:100px;cursor:pointer;border:none;transition:.25s;display:inline-flex;align-items:center;gap:9px}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--yellow);color:var(--ink);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--ink)}
.scroll-hint{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);z-index:3;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-soft);display:flex;flex-direction:column;align-items:center;gap:10px}
.scroll-hint .ln{width:1px;height:38px;background:linear-gradient(var(--ink-soft),transparent);animation:drop 1.8s infinite}
@keyframes drop{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* section shell */
section{position:relative;padding:120px 0}
.tag{font-family:var(--body);font-weight:600;font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--yellow-deep);margin-bottom:18px}
.h2{font-family:var(--display);font-weight:700;font-size:clamp(36px,5.5vw,62px);line-height:1.02;letter-spacing:-.03em}

/* section 2 — showcase */
.showcase{background:var(--paper-2)}
.showcase .wrap{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.showcase .copy p{margin-top:24px;font-size:18px;line-height:1.6;color:var(--ink-soft);max-width:440px}
.showcase .copy .p-short{display:none}
.feature-list{margin-top:34px;display:flex;flex-direction:column;gap:16px}
.feature-list li{list-style:none;display:flex;gap:14px;align-items:flex-start;font-size:16px;font-weight:500}
.feature-list .ck{flex-shrink:0;width:24px;height:24px;border-radius:50%;background:var(--yellow);display:grid;place-items:center;font-size:13px;font-weight:800;color:var(--ink)}
.feature-list .short{display:none}

/* iphone mock */
.phone-stage{display:flex;justify-content:center;perspective:1600px}
.phone{position:relative;width:300px;height:612px;background:#1a1a1a;border-radius:54px;padding:13px;box-shadow:0 50px 90px -30px rgba(22,19,14,.45),0 0 0 2px rgba(0,0,0,.2) inset;transform:rotateY(0) rotateX(0);transition:transform .6s ease}
.phone:hover{transform:rotateY(-12deg) rotateX(3deg)}
.phone .island{position:absolute;top:24px;left:50%;transform:translateX(-50%);width:96px;height:28px;background:#000;border-radius:100px;z-index:4}
.screen{position:relative;width:100%;height:100%;border-radius:42px;overflow:hidden;background:linear-gradient(160deg,#FFF3DC,#FAF7F1)}
.screen img{width:100%;height:100%;object-fit:cover;display:block}
.screen-empty{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:30px;gap:14px}
.screen-empty .ico{width:54px;height:54px;border-radius:16px;background:var(--yellow);display:grid;place-items:center;font-size:26px}
.screen-empty b{font-family:var(--display);font-size:17px}
.screen-empty span{font-size:13px;color:var(--ink-soft);line-height:1.5;max-width:170px}

/* section 3 — science (dark) */
.science{background:#000;color:var(--paper)}
.science .head{max-width:720px;margin:0 auto;text-align:center}
.science .head .tag{color:var(--yellow)}
.science .head p{margin-top:22px;font-size:18px;line-height:1.6;color:var(--dark-soft)}

/* science — vertical journey */
.journey{position:relative;max-width:860px;margin:58px auto 0}
.journey::before{content:"";position:absolute;left:50%;top:34px;bottom:34px;width:3px;transform:translateX(-50%);background:linear-gradient(var(--yellow),rgba(255,185,61,.15));border-radius:3px}
.j-stage{position:relative;display:grid;grid-template-columns:1fr 76px 1fr;align-items:center;padding:24px 0}
.j-media{grid-column:1;grid-row:1}
.j-text{grid-column:3;grid-row:1;padding-left:10px}
.j-stage.rev .j-media{grid-column:3}
.j-stage.rev .j-text{grid-column:1;padding-left:0;padding-right:10px;text-align:right}
.j-node{grid-column:2;grid-row:1;justify-self:center;z-index:2;width:48px;height:48px;border-radius:50%;background:var(--yellow);color:var(--ink);font-family:var(--display);font-weight:800;font-size:21px;display:grid;place-items:center;box-shadow:0 0 0 9px #000,0 0 0 12px rgba(255,185,61,.18)}
.j-ph{position:relative;width:100%;max-width:300px;margin-right:auto}
.j-ph.wide{max-width:430px}
.j-ph img{width:100%;height:auto;display:block}
.j-ph img[alt="Levld mascot distracted while trying to work at a laptop"]{transform:scaleX(-1)}
.j-stage:not(.rev) .j-media .j-ph{margin-left:auto;margin-right:0}
.j-ph span{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--dark-soft);padding:0 14px}
.j-text b{display:block;font-family:var(--display);font-weight:700;font-size:24px;line-height:1.05;color:var(--yellow);margin-bottom:9px;letter-spacing:-.01em}
.j-text p{font-size:15px;line-height:1.55;color:var(--dark-soft);margin:0;max-width:340px}
.j-stage.rev .j-text p{margin-left:auto}
@media(min-width:761px){.j-stage{min-height:380px}}
@media(max-width:760px){
  .journey{max-width:460px;margin-top:42px}
  .journey::before{left:30px;top:26px;bottom:26px}
  .j-stage{grid-template-columns:60px 1fr;column-gap:16px;padding:16px 0}
  .j-node,.j-stage.rev .j-node{grid-column:1;grid-row:1 / span 2;align-self:start;width:42px;height:42px;font-size:18px;box-shadow:0 0 0 6px #000,0 0 0 9px rgba(255,185,61,.18)}
  .j-media,.j-stage.rev .j-media{grid-column:2;grid-row:1;margin-bottom:14px}
  .j-text,.j-stage.rev .j-text{grid-column:2;grid-row:2;padding:0;text-align:left}
  .j-ph,.j-stage:not(.rev) .j-media .j-ph{max-width:210px;margin:0}
  .j-ph.wide{max-width:290px}
  .j-text p,.j-stage.rev .j-text p{margin-left:0;max-width:none}
}

/* section 4 — preorder */
.preorder{background:var(--paper);text-align:center}
.pre-intro{max-width:480px;margin:22px auto 0;color:var(--ink-soft);font-size:17px;line-height:1.55}
.price-card{max-width:540px;margin:54px auto 0;background:#fff;border:1px solid var(--line);border-radius:30px;padding:54px 46px;box-shadow:0 40px 80px -40px rgba(22,19,14,.25);position:relative;overflow:hidden}
.price-card::before{content:"";position:absolute;top:0;left:0;right:0;height:7px;background:var(--yellow)}
.badge{display:inline-block;background:var(--yellow);color:var(--ink);font-weight:700;font-size:13px;letter-spacing:.06em;padding:8px 18px;border-radius:100px;margin-bottom:26px}
.price{font-family:var(--display);font-weight:800;font-size:78px;line-height:1;letter-spacing:-.03em}
.price sup{font-size:34px;top:-.6em;font-weight:700}
.price-sub{color:var(--ink-soft);font-size:16px;margin-top:8px}
.perks{text-align:left;max-width:330px;margin:34px auto;display:flex;flex-direction:column;gap:14px}
.perks li{list-style:none;display:flex;gap:12px;font-size:15.5px;font-weight:500;align-items:center}
.perks .ck{flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--yellow);display:grid;place-items:center;font-size:12px;font-weight:800}
.pay-btn{width:100%;justify-content:center;background:var(--ink);color:var(--paper);font-size:17px;padding:19px}
.pay-btn:hover{background:var(--yellow);color:var(--ink);transform:translateY(-2px)}
.pay-note{margin:4px auto 20px;max-width:none;font-size:13px;line-height:1.55;color:var(--ink-soft);text-align:center}
.pay-note b{color:var(--ink);font-weight:700}
.scarce{margin-top:16px;display:inline-flex;align-items:center;gap:9px;font-size:13.5px;font-weight:600;color:var(--ink-soft)}
.scarce .dot{width:8px;height:8px;border-radius:50%;background:var(--yellow);box-shadow:0 0 0 4px rgba(255,185,61,.18);animation:pulse 2s infinite}
.pay-note{margin-top:18px;font-size:13px;color:var(--ink-soft)}

footer{background:var(--paper);padding:40px 0 60px;text-align:center;border-top:1px solid var(--line)}
footer .mark{justify-content:center;margin-bottom:12px}
footer small{color:var(--ink-soft);font-size:13px}

/* reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

@media(max-width:860px){
  .g1{width:500px;height:500px;top:-160px;right:-130px}
  .g2{width:380px;height:380px;bottom:-170px;left:-100px}
  .showcase .wrap{grid-template-columns:1fr;gap:32px}
  .showcase .copy{text-align:center;order:2}
  .showcase .copy .p-full{display:none}
  .showcase .copy .p-short{display:block}
  .showcase .phone-stage{order:1;position:relative}
  .showcase .phone-stage::before{content:"";position:absolute;width:420px;height:420px;top:50%;left:50%;transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(255,185,61,.55),transparent 65%);filter:blur(60px);z-index:0;pointer-events:none}
  .showcase .phone{position:relative;z-index:1;transform:scale(.77);transform-origin:center top;margin-bottom:-140px}
  .showcase .copy p,.perks{margin-left:auto;margin-right:auto}
  .feature-list{flex-direction:row;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:28px}
  .feature-list li{text-align:left;background:#fff;border:1px solid var(--line);border-radius:100px;padding:9px 16px 9px 10px;font-size:14px;font-weight:600;gap:8px;align-items:center}
  .feature-list .ck{width:20px;height:20px;font-size:11px}
  .feature-list .full{display:none}
  .feature-list .short{display:inline}
  section{padding:84px 0}
  .price-card{padding:44px 26px}
}