*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --blue:#0a84ff;
  --blue-2:#5ac8fa;
  --red:#ff3b30;
  --bg:#fff;
  --tint:#f5f5f7;
  --ink:#1d1d1f;
  --ink-dim:#6e6e73;
  --line:rgba(0,0,0,.09);
  --radius:22px;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,monospace;
}

html{scroll-behavior:smooth;background:var(--bg)}
body{
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Helvetica Neue",Inter,system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}

/* ---------- SHELL: centred column with side rules ---------- */
:root{--shell-min:720px;--shell-max:1100px}
.shell{
  width:min(100%,clamp(var(--shell-min),34vw,var(--shell-max)));
  margin:0 auto;background:#fff;
  border-left:1px solid var(--line);border-right:1px solid var(--line);
  overflow:hidden;
}
@media(max-width:760px){.shell{border-left:none;border-right:none}}

.wrap{width:100%;padding-inline:clamp(16px,3%,28px)}

/* ---------- REVEAL ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- SHARED TYPE ---------- */
.eyebrow{font-size:13px;font-weight:600;letter-spacing:.01em;color:var(--blue);margin-bottom:12px}
.section-title{font-size:clamp(34px,4.6vw,56px);line-height:1.05;letter-spacing:-.035em;font-weight:600}
.lead{font-size:clamp(16px,1.5vw,18px);line-height:1.55;color:var(--ink-dim);max-width:600px;margin-top:18px}

/* ---------- HERO: full-bleed video with overlaid content ---------- */
.hero{position:relative;aspect-ratio:4/3;height:auto;min-height:540px;max-height:84vh;overflow:hidden;background:#fff;display:flex;align-items:flex-end}
.hero-media{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:#fff}
.hero-scrim{position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,rgba(0,0,0,0) 0%,rgba(0,0,0,0) 10%,rgba(0,0,0,.5) 66%,rgba(0,0,0,.7) 100%)}
.hero-content{position:relative;width:100%;padding-bottom:clamp(18px,2.6vh,30px);color:#fff}
.app-icon{width:104px;height:104px;flex:none;border-radius:24.5%;display:block}
.hero-title{font-size:clamp(26px,3.2vw,38px);font-weight:600;letter-spacing:-.035em;line-height:1.05}
.hero-sub{font-size:clamp(15px,1.3vw,16.5px);font-weight:400;letter-spacing:normal;line-height:1.5;margin-top:12px;color:rgba(255,255,255,.92)}
.hero-actions{display:flex;gap:22px;align-items:center;flex-wrap:wrap;margin-top:28px}
/* copy left, badge right, both sitting on the same bottom line */
.hero-row{display:flex;align-items:flex-end;justify-content:space-between;gap:28px}
.hero-copy{min-width:0;display:flex;align-items:center;gap:20px}
.hero-text{min-width:0}
.hero .hero-actions{margin-top:0;justify-content:flex-end;flex:none}
.badge{display:inline-block;transition:transform .2s,opacity .2s}
.badge:hover{opacity:.82}
.badge:active{transform:scale(.97)}
.badge img{display:block;width:150px;height:auto}
@media(max-width:760px){
  .hero{height:auto;min-height:0;padding-top:62vw}
  .app-icon{width:76px;height:76px}
}

/* ---------- SECTIONS ---------- */
.section{padding:110px 0;background:var(--bg)}
.section.tint{background:var(--tint)}
/* full-bleed hairline separator above a section */
.sep{border-top:1px solid var(--line)}
.lead.small{font-size:clamp(15px,1.3vw,16.5px);max-width:520px}

/* title over a full-width video */
.section-video{padding:56px 0 0;background:#fff}
.section-video .section-title,
#train .section-title,
#cta .section-title{font-size:clamp(26px,3.2vw,38px)}
.section-video{padding-bottom:0}
.section-video .facts{margin-top:clamp(40px,5vw,56px);padding-bottom:48px}
#train .facts{padding-bottom:36px}
#cta .facts{padding-bottom:8px}
#accomplish .facts,
#know .facts,
#cta .facts{grid-template-columns:repeat(2,1fr)}
/* sections whose video sits on the grey canvas */
#accomplish,#know,#train{background:#F2F2F7}
#accomplish .section-media,
#accomplish .section-media video,
#know .section-media,
#know .section-media video,
#train .section-media,
#train .section-media video{background:#F2F2F7}

.section-media{margin-top:clamp(36px,5vw,64px);line-height:0;background:#fff}
.section-media video{display:block;width:100%;height:auto;background:#fff}

.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);padding:28px;
  box-shadow:0 14px 44px -28px rgba(0,0,0,.35);
  transition:transform .35s cubic-bezier(.2,.7,.2,1),border-color .35s,box-shadow .35s;
}
.card:hover{transform:translateY(-5px);border-color:rgba(10,132,255,.45);box-shadow:0 22px 54px -28px rgba(10,132,255,.5)}
.card h3{font-size:18px;font-weight:600;letter-spacing:-.02em;margin-bottom:9px}
.card p{font-size:15px;line-height:1.55;color:var(--ink-dim)}
.ico{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;font-size:18px;margin-bottom:16px;background:linear-gradient(135deg,var(--blue),var(--blue-2));color:#fff}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:44px}
@media(max-width:860px){.grid-3,.grid-2{grid-template-columns:1fr}}

/* release card */
.release-card{
  margin-top:52px;padding:30px;border-radius:26px;
  background:linear-gradient(180deg,rgba(10,132,255,.08),rgba(255,255,255,.9));
  border:1px solid rgba(10,132,255,.25);
}
.release-head{display:flex;align-items:center;gap:11px}
.dot{width:9px;height:9px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 5px rgba(10,132,255,.16)}
.mono{font-family:var(--mono);font-size:15px;letter-spacing:-.01em;color:var(--blue)}
.mono.small{font-size:12.5px;color:var(--ink-dim)}
.release-label{font-size:13px;color:var(--ink-dim);margin:22px 0 12px;text-transform:uppercase;letter-spacing:.08em}
.chips{display:flex;gap:10px;flex-wrap:wrap}
.chip{padding:9px 15px;border-radius:14px;font-size:14px;background:#fff;border:1px solid var(--line)}
.chip.ghost{background:none;border-style:dashed;color:var(--ink-dim)}

/* three short notes under the train */
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:64px}
.fact{padding-top:18px;border-top:1px solid var(--line)}
.fact h3{font-size:18px;font-weight:600;letter-spacing:-.025em;line-height:1.25;margin-bottom:8px}
/* heading-only note: no trailing gap under it */
.fact h3:last-child{margin-bottom:0}
.fact p{font-size:clamp(15px,1.3vw,16.5px);line-height:1.5;color:var(--ink-dim)}
.fact.danger{border-top-color:rgba(255,59,48,.55)}
.fact.danger h3{color:var(--red)}
/* muted red: reads as secondary next to the bright headline, still clearly red */
.fact.danger p{color:#c2453c}
@media(max-width:640px){.facts{grid-template-columns:1fr;gap:0}.fact{padding:18px 0}}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:52px}
@media(max-width:860px){.steps{grid-template-columns:1fr}}
.step{padding:32px 28px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:0 14px 44px -30px rgba(0,0,0,.35)}
.step .num{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;border:1.5px solid var(--blue);color:var(--blue);font-size:19px;font-weight:600;margin-bottom:18px}
.step h3{font-size:18px;font-weight:600;letter-spacing:-.02em;margin-bottom:9px}
.step p{font-size:15px;line-height:1.55;color:var(--ink-dim)}

/* cta */
.cta{padding:56px 0 48px;background:#F2F2F7}
#cta .facts{margin-top:clamp(40px,5vw,56px)}


/* footer */
.footer{border-top:1px solid var(--line);padding:26px 0;font-size:12.5px;color:#86868b;background:#F2F2F7}
.footer-inner{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.footer a{color:var(--ink-dim);transition:color .2s}
.footer a:hover{color:var(--blue)}

@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .bangs span{animation:none}
  html{scroll-behavior:auto}
}