:root{
  --radius:1rem;
  --background:oklch(0.14 0.01 150);
  --foreground:oklch(0.98 0.01 120);
  --card:oklch(0.18 0.012 150);
  --muted-foreground:oklch(0.72 0.02 140);
  --primary:oklch(0.92 0.21 130);
  --primary-foreground:oklch(0.14 0.05 150);
  --on-primary-muted:oklch(0.34 0.06 150);
  --border:oklch(1 0 0 / 8%);
  --gradient-card:linear-gradient(180deg, oklch(0.22 0.04 145 / 0.6), oklch(0.16 0.02 150 / 0.4));
  --shadow-glow:0 0 60px -10px oklch(0.92 0.21 130 / 0.45);
  --shadow-card:0 20px 60px -20px oklch(0 0 0 / 0.6);
  --shadow-lime:0 32px 80px -24px oklch(0.92 0.21 130 / 0.45);
}
*{box-sizing:border-box;margin:0;padding:0;border-color:var(--border)}
html{scroll-behavior:smooth}
body{
  background-color:var(--background);
  color:var(--foreground);
  font-family:"Inter",ui-sans-serif,system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, oklch(0.92 0.21 130 / 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 80% 80%, oklch(0.6 0.18 150 / 0.08), transparent);
  overflow-x:hidden;
}
h1,h2,h3{font-family:"Sora",ui-sans-serif,system-ui,sans-serif;letter-spacing:-0.02em}
a{text-decoration:none;color:inherit}
img{display:block}
button{font:inherit;color:inherit}
.muted{color:var(--muted-foreground)}
.text-gradient-primary{background:linear-gradient(120deg, oklch(0.92 0.21 130), oklch(0.85 0.18 155));-webkit-background-clip:text;background-clip:text;color:transparent}
.card-glass{background:var(--gradient-card);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid oklch(1 0 0 / 6%);box-shadow:var(--shadow-card)}
.micro{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:0.18em}
.icon{height:1rem;width:1rem;flex:none}

/* ---------- animations ---------- */
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
@keyframes pulse-glow{0%,100%{opacity:.55;transform:scale(1)}50%{opacity:1;transform:scale(1.06)}}
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}
@keyframes heartbeat{0%,100%{transform:scale(1)}15%{transform:scale(1.15)}30%{transform:scale(1)}45%{transform:scale(1.08)}60%{transform:scale(1)}}
.animate-heartbeat{animation:heartbeat 1.6s ease-in-out infinite}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity 700ms cubic-bezier(0.22,1,0.36,1),transform 700ms cubic-bezier(0.22,1,0.36,1);will-change:opacity,transform}
.reveal.is-visible{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .animate-heartbeat,.orb,.btn-primary .shine,.ecg path{animation:none !important}
  *{transition-duration:0.01ms !important}
}

/* ---------- ambient orbs ---------- */
.orbs{position:fixed;inset:0;z-index:-1;pointer-events:none}
.orb{position:absolute;border-radius:9999px}
.orb1{top:-10%;left:50%;height:600px;width:900px;transform:translateX(-50%);background:oklch(0.92 0.21 130 / 0.18);filter:blur(140px);animation:pulse-glow 4s ease-in-out infinite}
.orb2{top:40%;right:-10%;height:400px;width:400px;background:oklch(0.85 0.22 135 / 0.1);filter:blur(120px);animation:float 7s ease-in-out infinite}
.orb3{bottom:10%;left:-5%;height:400px;width:400px;background:oklch(0.92 0.21 130 / 0.1);filter:blur(120px);animation:float 7s ease-in-out infinite;animation-delay:2s}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);background:oklch(0.14 0.01 150 / 0.6);border-bottom:1px solid oklch(1 0 0 / 4%)}
.nav-inner{max-width:72rem;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0.75rem 1.25rem}
.brand{display:flex;align-items:center;gap:0.625rem}
.brand svg{height:1.25rem;width:1.25rem;color:var(--primary)}
.brand img{height:1.25rem;width:auto}
.nav-desktop{display:none;align-items:center;gap:0.5rem}
.nav-link{padding:0.5rem 0.75rem;font-size:0.875rem;color:var(--muted-foreground);transition:color .2s}
.nav-link:hover{color:var(--foreground)}
.store-btn{display:inline-flex;align-items:center;gap:0.5rem;border-radius:9999px;padding:0.5rem 1rem;font-size:0.875rem;font-weight:500;transition:transform .3s,box-shadow .3s,border-color .3s,background .3s}
.store-btn:hover{transform:translateY(-2px)}
.store-btn.solid{background:var(--foreground);color:var(--background)}
.store-btn.solid:hover{box-shadow:0 0 30px -5px oklch(1 0 0 / 0.4)}
.store-btn.outline{border:1px solid var(--border);background:oklch(0.18 0.012 150 / 0.4);color:var(--foreground)}
.store-btn.outline:hover{background:var(--card);border-color:oklch(0.92 0.21 130 / 0.4)}
.store-btn svg{height:1rem;width:1rem}
.nav-mobile{display:flex;align-items:center;gap:0.5rem}
.open-app-pill{display:inline-flex;align-items:center;gap:0.375rem;border-radius:9999px;background:var(--primary);padding:0.375rem 0.875rem;font-size:0.75rem;font-weight:600;color:var(--primary-foreground)}
.menu-btn{display:inline-flex;height:2.25rem;width:2.25rem;align-items:center;justify-content:center;border-radius:9999px;border:1px solid var(--border);background:oklch(0.18 0.012 150 / 0.6);color:var(--foreground);cursor:pointer;transition:border-color .2s}
.menu-btn:hover{border-color:oklch(0.92 0.21 130 / 0.4)}
.menu-btn svg{height:1rem;width:1rem}
.mobile-panel{overflow:hidden;max-height:0;opacity:0;transition:max-height .3s,opacity .3s;background:oklch(0.14 0.01 150 / 0.8);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}
.mobile-panel.open{max-height:20rem;opacity:1;border-top:1px solid oklch(1 0 0 / 4%)}
.mobile-panel-inner{padding:1rem 1.25rem;display:flex;flex-direction:column;gap:0.5rem}
.mobile-link{display:block;border-radius:0.75rem;padding:0.625rem 0.75rem;font-size:0.875rem;color:var(--muted-foreground)}
.mobile-link:hover{background:var(--card);color:var(--foreground)}
.mobile-store{display:flex;align-items:center;gap:0.75rem;border-radius:0.75rem;padding:0.75rem 1rem;font-size:0.875rem;font-weight:600}
.mobile-store svg{height:1.25rem;width:1.25rem}
.mobile-store .eyebrow{font-size:10px;font-weight:400;text-transform:uppercase;letter-spacing:0.05em;opacity:0.7;display:block}
.mobile-store.dark{background:var(--foreground);color:var(--background)}
.mobile-store.light{border:1px solid var(--border);background:oklch(0.18 0.012 150 / 0.6);color:var(--foreground)}
.mobile-store.light svg{color:var(--primary)}

/* ---------- hero ---------- */
.hero{position:relative;max-width:72rem;margin:0 auto;padding:3.5rem 1.25rem 3rem;text-align:center}
.badge{display:inline-flex;align-items:center;gap:0.5rem;border-radius:9999px;border:1px solid oklch(0.92 0.21 130 / 0.3);background:oklch(0.92 0.21 130 / 0.1);padding:0.375rem 1rem;font-size:0.72rem;font-weight:600;text-transform:uppercase;letter-spacing:0.15em;color:var(--primary)}
.badge .dot{height:0.4rem;width:0.4rem;border-radius:9999px;background:var(--primary);box-shadow:0 0 12px var(--primary)}
.hero h1{margin:1.5rem auto 0;max-width:20ch;font-size:2.4rem;font-weight:700;line-height:1.05}
.hero .lede{margin:1.5rem auto 0;max-width:34rem;font-size:1rem;color:var(--muted-foreground);line-height:1.6}
.hero-ctas{margin-top:2.25rem;display:flex;flex-direction:column;align-items:stretch;justify-content:center;gap:0.75rem}
.btn-primary{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;overflow:hidden;border-radius:9999px;background:var(--primary);padding:1rem 2rem;font-size:1rem;font-weight:600;color:var(--primary-foreground);box-shadow:var(--shadow-glow);border:0;cursor:pointer;transition:transform .3s,box-shadow .3s}
.btn-primary:hover{transform:translateY(-2px)}
.btn-primary:active{transform:scale(0.98)}
.btn-primary svg{position:relative;z-index:1;height:1rem;width:1rem;transition:transform .3s}
.btn-primary:hover svg{transform:translateX(4px)}
.btn-primary .label{position:relative;z-index:1}
.btn-primary .shine{position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);background-size:200% 100%;animation:shimmer 3s linear infinite}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;border-radius:9999px;border:1px solid var(--border);background:oklch(0.18 0.012 150 / 0.4);padding:1rem 2rem;font-size:1rem;font-weight:500;cursor:pointer;transition:background .3s,border-color .3s}
.btn-ghost:hover{background:var(--card);border-color:oklch(0.92 0.21 130 / 0.4)}
.app-note{margin:1rem auto 0;display:inline-flex;align-items:center;gap:0.5rem;font-size:0.8125rem;color:var(--muted-foreground)}
.app-note svg{height:0.9rem;width:0.9rem;color:var(--primary);flex:none}
.ecg{position:relative;margin:2.5rem auto 0;height:7rem;width:100%;max-width:44rem;opacity:0.9}
.ecg svg{height:100%;width:100%}

/* ---------- app notice (hidden until needed) ---------- */
.notice{display:none;max-width:40rem;margin:1.5rem auto 0;text-align:left;border-radius:1.25rem;border:1px solid oklch(0.92 0.21 130 / 0.3);background:oklch(0.92 0.21 130 / 0.08);padding:1.25rem}
.notice.is-open{display:block;animation:rise .5s cubic-bezier(0.16,1,0.3,1) both}
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.notice-head{display:flex;align-items:flex-start;gap:0.75rem}
.notice-head .step-icon{margin:0;height:2.5rem;width:2.5rem;flex:none}
.notice-head .step-icon svg{height:1.15rem;width:1.15rem}
.notice h3{font-size:1.05rem;font-weight:600}
.notice p{margin-top:0.35rem;font-size:0.9rem;line-height:1.55;color:var(--muted-foreground)}
.notice-actions{margin-top:1rem;display:flex;flex-wrap:wrap;gap:0.5rem}
.notice-actions .store-btn{font-size:0.8125rem}
.notice .hint{margin-top:0.85rem;font-size:0.78rem;color:var(--muted-foreground)}

/* ---------- sections ---------- */
.section{max-width:72rem;margin:0 auto;padding:2.5rem 1.25rem}
.section-head{text-align:center;max-width:40rem;margin:0 auto}
.section-head .micro{color:var(--primary)}
.section-head h2{margin-top:0.75rem;font-size:1.75rem;font-weight:700}
.section-head p{margin-top:0.75rem;color:var(--muted-foreground);line-height:1.6}

/* ---------- lime criteria panel ---------- */
.lime{position:relative;overflow:hidden;border-radius:1.75rem;background:var(--primary);color:var(--primary-foreground);padding:1.75rem 1.5rem;box-shadow:var(--shadow-lime)}
.lime::after{content:"";position:absolute;right:-8rem;top:-8rem;height:22rem;width:22rem;border-radius:9999px;background:oklch(1 0 0 / 0.22);filter:blur(60px);pointer-events:none}
.lime-grid{position:relative;display:grid;gap:1.75rem}
.lime .micro{color:var(--on-primary-muted)}
.lime .lead{margin-top:0.75rem;font-family:"Sora",sans-serif;font-size:1.3rem;font-weight:600;line-height:1.3;letter-spacing:-0.02em}
.criteria{margin-top:1.5rem;list-style:none}
.criteria li{display:flex;align-items:center;gap:1rem;padding:0.85rem 0;border-top:1px solid oklch(0.14 0.05 150 / 0.18);font-size:1rem;font-weight:500}
.criteria li:last-child{border-bottom:1px solid oklch(0.14 0.05 150 / 0.18)}
.criteria .num{font-size:0.7rem;font-weight:700;letter-spacing:0.12em;color:var(--on-primary-muted);width:1.5rem;flex:none}
.lime-side{display:flex;flex-direction:column;justify-content:center}
.lime-side p{font-size:1rem;line-height:1.6;font-weight:500}
.btn-dark{display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;margin-top:1.5rem;border-radius:9999px;background:var(--primary-foreground);color:var(--primary);padding:0.95rem 1.75rem;font-size:1rem;font-weight:600;border:0;cursor:pointer;box-shadow:0 16px 32px -12px oklch(0.14 0.05 150 / 0.6);transition:transform .3s}
.btn-dark:hover{transform:translateY(-2px)}
.btn-dark:active{transform:scale(0.98)}
.btn-dark svg{height:1rem;width:1rem;transition:transform .3s}
.btn-dark:hover svg{transform:translateX(4px)}
.lime-side .fine{margin-top:0.85rem;font-size:0.78rem;color:var(--on-primary-muted);display:flex;align-items:center;gap:0.4rem}
.lime-side .fine svg{height:0.85rem;width:0.85rem;flex:none}

/* ---------- steps ---------- */
.steps{margin-top:2rem;display:grid;gap:1.25rem}
.step{position:relative;height:100%;border-radius:1.25rem;border:1px solid var(--border);background:oklch(0.14 0.01 150 / 0.4);padding:1.75rem 1.5rem 1.5rem;transition:transform .5s,border-color .5s,background .5s}
.step:hover{transform:translateY(-4px);border-color:oklch(0.92 0.21 130 / 0.4);background:var(--card)}
.step-num{position:absolute;top:-0.8rem;left:1.5rem;border-radius:9999px;background:var(--primary);padding:0.15rem 0.7rem;font-size:0.72rem;font-weight:700;color:var(--primary-foreground)}
.step-icon{margin-bottom:1rem;display:inline-flex;height:3rem;width:3rem;align-items:center;justify-content:center;border-radius:0.85rem;background:oklch(0.92 0.21 130 / 0.15);color:var(--primary);transition:transform .3s}
.step:hover .step-icon{transform:scale(1.08) rotate(5deg)}
.step-icon svg{height:1.4rem;width:1.4rem}
.step h3{font-size:1.1rem;font-weight:600}
.step p{margin-top:0.4rem;font-size:0.9rem;line-height:1.55;color:var(--muted-foreground)}
.step p strong{color:var(--foreground);font-weight:600}

/* ---------- fine print ---------- */
.rules{margin-top:2rem;display:grid;gap:0.85rem}
.rule{display:flex;gap:0.9rem;align-items:flex-start;border-radius:1.1rem;border:1px solid var(--border);background:oklch(0.18 0.012 150 / 0.5);padding:1.1rem 1.15rem}
.rule .step-icon{margin:0;height:2.4rem;width:2.4rem;border-radius:0.7rem;flex:none}
.rule .step-icon svg{height:1.05rem;width:1.05rem}
.rule h3{font-size:0.98rem;font-weight:600}
.rule p{margin-top:0.25rem;font-size:0.875rem;line-height:1.55;color:var(--muted-foreground)}

/* ---------- study facts ---------- */
.facts{position:relative;overflow:hidden;border-radius:1.75rem;padding:1.75rem 1.5rem}
.facts-grid{display:grid;gap:1.75rem}
.facts .micro{color:var(--primary)}
.facts h2{margin-top:0.75rem;font-size:1.6rem;font-weight:700;line-height:1.15}
.facts .intro{margin-top:0.85rem;color:var(--muted-foreground);line-height:1.6}
.facts .warn{margin-top:1.25rem;display:flex;gap:0.6rem;align-items:flex-start;border-radius:0.9rem;border:1px solid oklch(0.92 0.21 130 / 0.25);background:oklch(0.92 0.21 130 / 0.08);padding:0.85rem 0.95rem;font-size:0.85rem;line-height:1.5}
.facts .warn svg{height:1rem;width:1rem;color:var(--primary);flex:none;margin-top:0.1rem}
.facts .warn a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.spec{list-style:none;border-radius:1.25rem;border:1px solid var(--border);background:oklch(0.14 0.01 150 / 0.5);overflow:hidden}
.spec li{display:grid;grid-template-columns:1fr;gap:0.3rem;padding:0.85rem 1.1rem;border-top:1px solid var(--border);font-size:0.9rem;line-height:1.5}
.spec li:first-child{border-top:0}
.spec .k{font-size:0.7rem;font-weight:700;text-transform:uppercase;letter-spacing:0.14em;color:var(--primary);padding-top:0.2rem;white-space:nowrap}

/* ---------- final cta ---------- */
.final{position:relative;overflow:hidden;border-radius:1.75rem;padding:2.25rem 1.5rem;text-align:center}
.final::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--primary),transparent)}
.final>svg{margin:0 auto;height:2.25rem;width:2.25rem;color:var(--primary)}
.final h2{margin-top:1.25rem;font-size:1.75rem;font-weight:700}
.final p{margin:0.85rem auto 0;max-width:32rem;color:var(--muted-foreground);line-height:1.6}
.final .hero-ctas{margin-top:1.75rem}
.store-row{margin-top:1.5rem;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0.75rem}
.store-big{display:inline-flex;align-items:center;gap:0.75rem;border-radius:1rem;padding:0.8rem 1.4rem;transition:transform .3s,box-shadow .3s,border-color .3s}
.store-big:hover{transform:translateY(-2px)}
.store-big svg{height:1.6rem;width:1.6rem}
.store-big .eyebrow2{font-size:10px;text-transform:uppercase;letter-spacing:0.05em;opacity:0.7}
.store-big .name{font-size:0.95rem;font-weight:600;line-height:1.2}
.store-big.dark{background:var(--foreground);color:var(--background)}
.store-big.dark:hover{box-shadow:0 0 30px -5px oklch(1 0 0 / 0.4)}
.store-big.light{border:1px solid var(--border);background:oklch(0.18 0.012 150 / 0.6)}
.store-big.light:hover{border-color:oklch(0.92 0.21 130 / 0.4)}
.store-big.light svg{color:var(--primary)}
.final .store-label{margin-top:1.75rem;font-size:0.78rem;color:var(--muted-foreground)}

/* ---------- footer ---------- */
footer{border-top:1px solid oklch(1 0 0 / 4%);padding:2.5rem 1.25rem;margin-top:1.5rem}
.footer-inner{max-width:72rem;margin:0 auto;display:flex;flex-direction:column;align-items:center;justify-content:space-between;gap:1rem;font-size:0.875rem;color:var(--muted-foreground)}
.footer-brand{display:flex;align-items:center;gap:0.5rem}
.footer-brand svg{height:1rem;width:1rem;color:var(--primary)}
.footer-brand img{height:1rem;width:auto}

/* ---------- breakpoints ---------- */
@media (min-width:640px){
  .nav-inner{padding:1rem 1.5rem}
  .brand img{height:1.5rem}
  .nav-desktop{display:flex}
  .nav-mobile,.mobile-panel{display:none}
  .hero{padding:5rem 1.5rem 3.5rem}
  .hero h1{font-size:3.4rem}
  .hero .lede{font-size:1.125rem}
  .hero-ctas,.store-row{flex-direction:row;align-items:center}
  .section{padding:3rem 1.5rem}
  .section-head h2,.final h2{font-size:2.25rem}
  .lime{padding:2.5rem}
  .lime .lead{font-size:1.5rem}
  .steps{grid-template-columns:repeat(3,1fr)}
  .rules{grid-template-columns:repeat(2,1fr)}
  .facts{padding:2.5rem}
  .facts h2{font-size:2rem}
  .spec li{grid-template-columns:9.5rem 1fr;gap:0.75rem}
  .final{padding:3rem}
}
@media (min-width:900px){
  .hero h1{font-size:4.25rem}
  .lime{padding:3.25rem}
  .lime-grid{grid-template-columns:1.15fr 1fr;gap:3rem;align-items:center}
  .lime-side{padding-left:2.5rem;border-left:1px solid oklch(0.14 0.05 150 / 0.18)}
  .facts{padding:3.25rem}
  .facts-grid{grid-template-columns:1fr 1.1fr;gap:3rem;align-items:center}
  .section{padding:3.5rem 1.5rem}
  .footer-inner{flex-direction:row}
}