/* Layout: the app's own screens stretched to a site. One dark ground, glass cards,
   a frosted title bar on top, a floating nav pill like the app's bottom bar. */
:root{
  --bg:#0b0e14; --bg2:#0f131b; --card:#151a23; --card2:#1a2029; --line:#232a36;
  --fg:#e6e9ef; --dim:#9aa3b2; --faint:#5e6878;
  --teal:#5fe3c8; --teal-ink:#04211c; --teal-dim:#2f8f7d;
  --amber:#fbbf24; --amber-ink:#2a1d00; --red:#f26d7d; --lav:#b9a6ff;
  --font:"Roboto",-apple-system,"Segoe UI",Helvetica,Arial,sans-serif;
  --mono:"Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --r:22px; --r-s:14px; --max:1080px; --gut:20px;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.55 var(--font);-webkit-font-smoothing:antialiased}
a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%;display:block}
h1,h2,h3{margin:0;font-weight:400;letter-spacing:-.01em;text-wrap:balance}
h1{font-size:clamp(36px,6vw,60px);line-height:1.05}
h2{font-size:clamp(26px,3.6vw,36px);line-height:1.15}
h3{font-size:21px;line-height:1.3}
p{margin:0}
.eyebrow{color:var(--teal);font-size:13px;font-weight:500;letter-spacing:.14em;text-transform:uppercase}
.wrap{max-width:var(--max);margin:0 auto;padding-inline:var(--gut)}
.stack{display:grid;gap:14px}
.dim{color:var(--dim)}
.small{font-size:14px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- title bar, like the app's GlassBar ---------- */
.bar{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;
  background:linear-gradient(180deg,rgba(14,26,30,.96),rgba(11,14,20,.92));
  border-bottom:1px solid var(--line)}
.bar .wrap{display:flex;align-items:center;gap:14px;height:64px}
.brand{display:flex;align-items:center;gap:12px;color:var(--fg);font-weight:500;letter-spacing:.22em;font-size:17px}
.brand:hover{text-decoration:none}
.brand img{width:32px;height:32px;border-radius:9px}
.nav{margin-left:auto;display:flex;gap:4px;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:4px}
.nav a{color:var(--dim);padding:8px 14px;border-radius:999px;font-size:15px;white-space:nowrap}
.nav a:hover{text-decoration:none;color:var(--fg)}
.nav a[aria-current="page"]{background:var(--card2);color:var(--fg)}
.cta{display:inline-flex;align-items:center;gap:8px;background:var(--amber);color:var(--amber-ink);font-weight:500;
  padding:12px 20px;border-radius:999px;border:0;font:inherit;cursor:pointer;white-space:nowrap}
.cta:hover{text-decoration:none;filter:brightness(1.06)}
.cta.ghost{background:var(--card);color:var(--fg);border:1px solid var(--line)}
.cta.teal{background:var(--teal);color:var(--teal-ink)}
.bar .cta{display:none}
@media(min-width:900px){.bar .cta{display:inline-flex;margin-left:10px}}
.menu-btn{display:none;margin-left:auto;background:var(--card);border:1px solid var(--line);color:var(--fg);border-radius:999px;width:44px;height:44px;cursor:pointer;font:inherit}
@media(max-width:760px){
  .nav{display:none;position:absolute;left:var(--gut);right:var(--gut);top:70px;flex-direction:column;border-radius:var(--r);padding:8px}
  .nav.open{display:flex}.nav a{padding:12px 16px}
  .menu-btn{display:inline-flex;align-items:center;justify-content:center}
}

/* ---------- pages ---------- */
main.page{display:block;padding-block:0 96px}
.hero{position:relative;overflow:hidden;padding-block:56px 40px;
  background:radial-gradient(900px 420px at 15% 0%,rgba(95,227,200,.10),transparent 60%),
             radial-gradient(700px 400px at 90% 20%,rgba(185,166,255,.08),transparent 60%)}
.hero-grid{display:grid;gap:36px;align-items:center;grid-template-columns:1.1fr .9fr}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr}}
.hero .lead{font-size:clamp(18px,2.2vw,22px);color:var(--dim);max-width:34em}
.hero .stay{color:var(--teal)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.hero-note{font-size:14px;color:var(--faint)}
.phone{justify-self:center;width:min(300px,78vw);aspect-ratio:1080/2270;border-radius:38px;background:#07090d;
  border:1px solid #2a3140;box-shadow:0 30px 80px rgba(0,0,0,.6),0 0 0 8px #0e1218,0 0 60px rgba(95,227,200,.08);overflow:hidden}
.phone img{width:100%;height:100%;object-fit:cover}

/* live strip, like the live ECG panel */
.strip{margin-top:48px;border-radius:var(--r);border:1px solid var(--line);background:var(--card);overflow:hidden}
.strip-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px 0}
.strip-head .big{font-size:28px}
.pill{display:inline-flex;align-items:center;gap:8px;background:var(--card2);border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-size:14px;color:var(--dim)}
.pill .dot{width:8px;height:8px;border-radius:50%;background:var(--red);box-shadow:0 0 10px var(--red)}
canvas.ecg{display:block;width:100%;height:190px}
.strip-foot{display:flex;justify-content:space-between;padding:0 18px 12px;color:var(--faint);font-size:13px}

/* story */
.story{display:grid;gap:28px;grid-template-columns:1.5fr 1fr;align-items:start;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:32px;
  background:linear-gradient(160deg,#10272a,var(--card) 55%)}
@media(max-width:860px){.story{grid-template-columns:1fr;padding:24px}}
.story-text{display:grid;gap:16px}
.story-text h2{font-size:clamp(22px,2.8vw,30px);font-weight:300;line-height:1.3}
.story-text p{color:var(--dim)}
.story-text .byline{color:var(--fg);font-size:15px}
.story-facts{display:grid;gap:10px}
.fact{display:grid;grid-template-columns:90px 1fr;gap:12px;align-items:baseline;background:var(--bg2);border:1px solid var(--line);border-radius:var(--r-s);padding:14px 16px}
.fact .n{font-size:26px;color:var(--teal)}
.fact .l{color:var(--dim);font-size:15px}
/* tiles like the app's heart tiles */
.tiles{display:grid;gap:14px;grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.tiles{grid-template-columns:repeat(2,1fr)}}
@media(max-width:460px){.tiles{grid-template-columns:1fr}}
.tile{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px 18px 16px;display:grid;gap:4px;align-content:start;min-width:0}
.tile.glow{background:linear-gradient(160deg,#10272a,var(--card) 70%)}
.tile .lbl{color:var(--dim);font-size:15px;display:flex;align-items:center;gap:6px}
.tile .lbl .i{width:16px;height:16px;border:1.5px solid var(--dim);border-radius:50%;font-size:10px;display:inline-grid;place-items:center;font-weight:700}
.tile .val{font-size:40px;line-height:1.1;font-weight:300}
.tile .val small{font-size:16px;color:var(--dim);margin-left:4px}
.tile .sub{color:var(--dim);font-size:15px}
.tile .sub b{color:var(--teal);font-weight:400}
.tile .val.teal{color:var(--teal)}
.tile svg{width:100%;height:46px;margin-top:6px}

.sec{padding-top:72px}
.sec-head{display:grid;gap:10px;max-width:40em;margin-bottom:28px}
.sec-head p{color:var(--dim)}

/* feature cards */
.cards{display:grid;gap:14px;grid-template-columns:repeat(3,1fr)}
@media(max-width:860px){.cards{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.cards{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px;display:grid;gap:8px;align-content:start;min-width:0}
.card h3{font-size:19px}
.card p{color:var(--dim);font-size:16px}
.card .ic{width:40px;height:40px;border-radius:12px;background:var(--card2);display:grid;place-items:center;color:var(--teal);margin-bottom:6px}
.card .ic svg{width:22px;height:22px}

/* steps: a real sequence (strap → night → share) */
.steps{display:grid;gap:14px;grid-template-columns:repeat(3,1fr);counter-reset:s}
@media(max-width:760px){.steps{grid-template-columns:1fr}}
.step{position:relative;background:var(--bg2);border:1px solid var(--line);border-radius:var(--r);padding:22px 22px 22px 64px;display:grid;gap:6px}
.step::before{counter-increment:s;content:counter(s);position:absolute;left:20px;top:20px;width:30px;height:30px;border-radius:50%;
  background:var(--teal);color:var(--teal-ink);display:grid;place-items:center;font-weight:500;font-size:15px}
.step p{color:var(--dim);font-size:16px}

/* plans */
.plans{display:grid;gap:14px;grid-template-columns:repeat(3,1fr)}
@media(max-width:860px){.plans{grid-template-columns:1fr}}
.plan{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;display:grid;gap:14px;align-content:start;min-width:0}
.plan.hi{border-color:var(--teal-dim);background:linear-gradient(160deg,#10272a,var(--card) 60%)}
.plan .name{display:flex;align-items:baseline;justify-content:space-between;gap:10px}
.plan .name h3{font-size:24px}
.plan .job{color:var(--teal);font-size:14px;letter-spacing:.08em;text-transform:uppercase}
.plan .price{font-size:34px;font-weight:300;line-height:1}
.plan .price small{font-size:15px;color:var(--dim);font-weight:400}
.plan .alt{color:var(--dim);font-size:14px;margin-top:-8px}
.plan ul{margin:0;padding:0;list-style:none;display:grid;gap:8px;color:var(--dim);font-size:16px}
.plan li{padding-left:26px;position:relative}
.plan li::before{content:"";position:absolute;left:2px;top:9px;width:12px;height:7px;border-left:2px solid var(--teal);border-bottom:2px solid var(--teal);transform:rotate(-45deg)}
.plan li.inh{color:var(--faint)}.plan li.inh::before{border-color:var(--faint)}
.support{margin-top:14px;background:var(--bg2);border:1px dashed var(--line);border-radius:var(--r);padding:22px;display:grid;gap:10px;grid-template-columns:1fr auto;align-items:center}
@media(max-width:700px){.support{grid-template-columns:1fr}}
.support .amts{display:flex;gap:8px;flex-wrap:wrap}
.support .amts span{border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-family:var(--mono)}
.fine{color:var(--faint);font-size:14px;max-width:60em}

/* shop row, like the app's shop link row */
.shop{display:grid;gap:14px;grid-template-columns:1fr 1fr}
@media(max-width:700px){.shop{grid-template-columns:1fr}}
.shoprow{display:flex;align-items:center;gap:14px;background:#10272a;border:1px solid var(--teal-dim);border-radius:var(--r-s);padding:14px 16px;color:var(--fg)}
.shoprow:hover{text-decoration:none;filter:brightness(1.08)}
.shoprow .t{display:grid;gap:2px}.shoprow .t small{color:var(--teal);font-size:14px}
.shoprow .arrow{margin-left:auto;color:var(--teal)}
.disclosure{color:var(--faint);font-size:13px;margin-top:8px}
/* the app's note block */
.note{border-left:4px solid var(--teal);background:#10201d;padding:14px 18px;border-radius:8px;color:var(--fg)}
.note.amber{border-color:var(--amber);background:#241d0b}

/* maker */
.maker{display:grid;gap:24px;grid-template-columns:1fr 1fr;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px}
@media(max-width:760px){.maker{grid-template-columns:1fr}}
.maker blockquote{margin:0;font-size:clamp(20px,2.4vw,26px);font-weight:300;line-height:1.35}
.maker p{color:var(--dim)}

/* footer */
footer{border-top:1px solid var(--line);padding-block:36px 48px;color:var(--dim);font-size:15px;background:var(--bg2)}
footer .wrap{display:grid;gap:28px;grid-template-columns:1.4fr 1fr 1fr 1fr}
@media(max-width:760px){footer .wrap{grid-template-columns:1fr 1fr}}
@media(max-width:460px){footer .wrap{grid-template-columns:1fr}}
footer h4{margin:0 0 10px;color:var(--fg);font-weight:500;font-size:14px;letter-spacing:.1em;text-transform:uppercase}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
footer a{color:var(--dim)}footer a:hover{color:var(--fg)}
.legal-line{max-width:var(--max);margin:28px auto 0;padding-inline:var(--gut);color:var(--faint);font-size:13px}

/* ---------- document pages (privacy, terms, help, changelog, contact) ---------- */
.doc{max-width:760px;margin:0 auto;padding-top:48px}
.doc-head{display:grid;gap:12px;margin-bottom:32px}
.doc-head .meta{color:var(--dim);font-size:15px;display:flex;flex-wrap:wrap;gap:8px 18px}
.doc h2{font-size:22px;margin-top:40px;margin-bottom:10px}
.doc h3{font-size:18px;margin-top:24px;margin-bottom:6px}
.doc p,.doc li{color:#c9cfd8;font-size:16.5px}
.doc p+p{margin-top:12px}
.doc ul{padding-left:22px;margin:10px 0}.doc li{margin:6px 0}
.doc .note{margin:18px 0}
.tbl{overflow-x:auto;margin:14px 0;border:1px solid var(--line);border-radius:var(--r-s)}
.doc table{border-collapse:collapse;width:100%;font-size:15px;min-width:520px}
.doc th,.doc td{text-align:left;vertical-align:top;padding:10px 12px;border-bottom:1px solid var(--line);color:#c9cfd8}
.doc th{color:var(--dim);font-weight:500;font-size:13px;letter-spacing:.08em;text-transform:uppercase;background:var(--card)}
.doc tr:last-child td{border-bottom:0}
.toc{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 8px}
.toc a{font-size:14px;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:6px 12px;color:var(--dim)}
.toc a:hover{color:var(--fg);text-decoration:none}

/* contact */
.addr{display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px}
.addr .mail{font-family:var(--mono);font-size:clamp(18px,3vw,24px);color:var(--fg);user-select:all;word-break:break-all}
.addr button{margin-left:auto}
.kv{display:grid;grid-template-columns:auto 1fr;gap:8px 18px;font-size:16px}
.kv dt{color:var(--dim)}.kv dd{margin:0}

/* changelog */
.rel{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:22px 0;border-top:1px solid var(--line)}
.rel:first-of-type{border-top:0}
@media(max-width:560px){.rel{grid-template-columns:1fr;gap:6px}}
.rel .v{font-family:var(--mono);font-size:18px;color:var(--fg)}
.rel .d{color:var(--faint);font-size:14px;display:block;margin-top:2px}
.rel .tag{display:inline-block;margin-top:8px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;border-radius:999px;padding:3px 9px;background:var(--card2);color:var(--teal)}
.rel ul{margin:6px 0 0;padding-left:20px}
.rel li{margin:4px 0;color:#c9cfd8;font-size:16px}

/* faq */
details{border:1px solid var(--line);border-radius:var(--r-s);background:var(--card);padding:0 18px;margin:8px 0}
summary{cursor:pointer;padding:14px 0;font-size:17px;color:var(--fg);list-style:none;display:flex;justify-content:space-between;gap:12px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--teal);font-size:22px;line-height:1}
details[open] summary::after{content:"–"}
details p{padding-bottom:16px}

:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}