/* Min Hälsa — Apple-inspired styling (system SF font stack, Apple palette) */
:root{
  --text:#1d1d1f;          /* Apple near-black */
  --muted:#6e6e73;         /* Apple secondary gray */
  --bg:#ffffff;
  --bg-alt:#f5f5f7;        /* Apple light section gray */
  --line:#d2d2d7;          /* Apple hairline */
  --link:#0066cc;          /* Apple text link blue */
  --btn:#0071e3;           /* Apple button blue */
  --btn-hover:#0077ed;
  --accent:#ffe600;        /* app brand yellow */
  --nav-h:48px;
  --maxw:980px;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text",
         "SF Pro Icons","Helvetica Neue",Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--text);background:var(--bg);
  line-height:1.47;font-size:17px;letter-spacing:-.01em;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
code{font-family:"SF Mono",ui-monospace,Menlo,Consolas,monospace;font-size:.9em;
  background:var(--bg-alt);padding:.12em .4em;border-radius:5px}
hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

/* ---- Nav ---- */
.nav{position:sticky;top:0;z-index:50;height:var(--nav-h);
  background:rgba(251,251,253,.82);backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid rgba(0,0,0,.08)}
.nav-inner{max-width:var(--maxw);margin:0 auto;height:100%;padding:0 22px;
  display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:9px;color:var(--text);font-weight:600;
  font-size:18px;letter-spacing:-.02em}
.brand:hover{text-decoration:none}
.appmark{display:block;border-radius:7px}
.links{display:flex;flex-wrap:wrap;gap:4px}
.links a{color:#1d1d1f;opacity:.82;font-size:13px;padding:6px 11px;border-radius:980px}
.links a:hover{opacity:1;text-decoration:none;background:rgba(0,0,0,.05)}
.links a.active{opacity:1;font-weight:500}

/* ---- Buttons ---- */
.btn{display:inline-block;background:var(--btn);color:#fff;font-size:16px;
  padding:11px 21px;border-radius:980px;font-weight:400}
.btn:hover{background:var(--btn-hover);text-decoration:none}
.btn-link{font-size:16px}
.btn-link:hover{text-decoration:underline}
.cta{display:flex;gap:22px;align-items:center;flex-wrap:wrap;margin-top:26px}

/* ---- Hero ---- */
.hero{max-width:var(--maxw);margin:0 auto;padding:72px 22px 36px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero h1{font-size:64px;line-height:1.05;font-weight:600;letter-spacing:-.025em;margin:0 0 .35em}
.hero .sub{font-size:21px;line-height:1.38;color:var(--muted);margin:0;max-width:30em}
.hero .meta{margin-top:22px;color:var(--muted);font-size:14px}
.hero-device{display:flex;justify-content:center}
.phone{width:248px;height:512px;border-radius:46px;background:#000;
  padding:11px;box-shadow:0 30px 70px rgba(0,0,0,.28);position:relative}
.phone:before{content:"";position:absolute;top:16px;left:50%;transform:translateX(-50%);
  width:96px;height:26px;background:#000;border-radius:16px;z-index:2}
.phone-screen{width:100%;height:100%;border-radius:36px;
  background:radial-gradient(120% 80% at 50% 0,#2c2c2e 0,#000 70%);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;color:#fff}
.screen-name{font-size:26px;font-weight:600;letter-spacing:-.02em}
.screen-tag{color:#a1a1a6;font-size:14px}

/* ---- Sections ---- */
.section{max-width:var(--maxw);margin:0 auto;padding:64px 22px}
.section-title{font-size:40px;line-height:1.1;font-weight:600;letter-spacing:-.02em;
  text-align:center;margin:0 0 .9em}
.lead{font-size:20px;color:var(--muted);max-width:40em;margin:0 auto;text-align:center}
.band{background:var(--bg-alt);max-width:none;padding:0}
.band-inner{max-width:var(--maxw);margin:0 auto;padding:72px 22px;text-align:center}
.band-inner.narrow{max-width:680px}

/* Feature grid */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature{background:var(--bg-alt);border-radius:18px;padding:30px 26px}
.feature h3{font-size:21px;font-weight:600;letter-spacing:-.02em;margin:.2em 0 .35em}
.feature p{color:var(--muted);font-size:15px;line-height:1.5;margin:0}
.ficon{width:40px;height:40px;border-radius:11px;background:var(--btn);
  -webkit-mask-position:center;mask-position:center;
  -webkit-mask-repeat:no-repeat;mask-repeat:no-repeat}
.ficon.heart{background:#ff3b30}
.ficon.question{background:#0071e3}
.ficon.doc{background:#5856d6}
.ficon.vitals{background:#34c759}
.ficon.mic{background:#ff9500}
.ficon.share{background:#00c7be}

/* Two big cards */
.cards2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.bigcard{display:block;background:var(--bg-alt);border-radius:18px;padding:34px;
  color:var(--text)}
.bigcard:hover{text-decoration:none;background:#ececed}
.bigcard .kicker{color:var(--btn);font-size:14px;font-weight:600}
.bigcard h3{font-size:26px;font-weight:600;letter-spacing:-.02em;margin:.25em 0 .35em}
.bigcard p{color:var(--muted);margin:0 0 1em}
.bigcard .go{color:var(--link);font-size:16px}

/* Research section */
.pullquote{max-width:760px;margin:34px auto 44px;text-align:center;font-size:28px;
  font-weight:600;letter-spacing:-.02em;line-height:1.28;border:0;padding:0}
.pullquote cite{display:block;font-size:15px;font-weight:400;color:var(--muted);
  font-style:normal;margin-top:16px}
.research{display:grid;grid-template-columns:1fr 1fr;gap:22px;text-align:left}
.rcard{background:var(--bg-alt);border-radius:18px;padding:28px}
.rcard .kicker{color:var(--btn);font-size:13px;font-weight:600}
.rcard h3{font-size:21px;font-weight:600;letter-spacing:-.02em;margin:.25em 0 .4em}
.rcard p{color:var(--muted);font-size:15px;line-height:1.5;margin:0}
.rmore{display:inline-block;margin-top:14px;color:var(--link);font-size:15px}
.note{color:var(--muted);font-size:13px;text-align:center;max-width:46em;margin:30px auto 0}

/* Apple Heart Study findings */
#heart-study{scroll-margin-top:64px}
.study{max-width:940px}
.studytag{display:inline-block;color:var(--btn);font-size:14px;font-weight:600;margin-bottom:6px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:10px 0 38px}
.stat{background:#fff;border-radius:16px;padding:22px 18px;text-align:left}
.stat .num{display:block;font-size:34px;font-weight:600;letter-spacing:-.02em;color:var(--text)}
.stat .lbl{display:block;margin-top:8px;font-size:13px;line-height:1.42;color:var(--muted)}
.study .prose{text-align:left;font-size:18px;line-height:1.5}
.study .prose p{margin:.85em 0;color:var(--text)}
.study-conc{text-align:left;margin:30px 0 6px;padding:20px 24px;background:#fff7d6;
  border-left:4px solid var(--accent);border-radius:0 14px 14px 0;font-size:18px;
  line-height:1.5;color:#5c4d00}
.study .note{text-align:left}
#spo2-study{scroll-margin-top:64px}
.studylist{margin:6px 0 0}
.studyitem{text-align:left;padding:22px 0;border-bottom:1px solid var(--line)}
.studyitem:last-child{border-bottom:0}
.studyitem .yr{color:var(--btn);font-size:13px;font-weight:600}
.studyitem h3{font-size:20px;font-weight:600;letter-spacing:-.02em;margin:3px 0 6px}
.studyitem ul{margin:0;padding-left:1.3em;color:var(--muted);font-size:16px;line-height:1.5}
.studyitem li{margin:.3em 0}
.verdict-box{background:var(--bg-alt);border-radius:18px;padding:26px 30px;margin-top:30px;text-align:left}
.verdict-box h3{font-size:21px;font-weight:600;letter-spacing:-.02em;margin:0 0 10px}
.verdict{list-style:none;padding:0;margin:0}
.verdict li{font-size:17px;line-height:1.5;margin:.5em 0;color:var(--text)}
@media(max-width:760px){.stats{grid-template-columns:1fr 1fr}}

.req{max-width:520px;margin:0 auto;text-align:left;list-style:none;padding:0}
.req li{padding:14px 0;border-bottom:1px solid var(--line)}
.req li:last-child{border-bottom:0}

/* ---- Page head (sub pages) ---- */
.pagehead{max-width:var(--maxw);margin:0 auto;padding:72px 22px 8px;text-align:center}
.pagehead h1{font-size:48px;font-weight:600;letter-spacing:-.025em;margin:0 0 .2em}
.pagehead p{font-size:20px;color:var(--muted);max-width:36em;margin:0 auto}

/* ---- Doc / article ---- */
.content{max-width:var(--maxw);margin:0 auto;padding:8px 22px 40px}
.doc{max-width:720px;margin:0 auto;padding:24px 0 8px;font-size:17px}
.doc h1{font-size:34px;font-weight:600;letter-spacing:-.02em;margin:1.2em 0 .4em}
.doc h2{font-size:26px;font-weight:600;letter-spacing:-.02em;margin:1.5em 0 .4em;
  padding-top:.5em}
.doc h3{font-size:20px;font-weight:600;margin:1.3em 0 .35em}
.doc p{margin:.7em 0}
.doc ul,.doc ol{margin:.6em 0;padding-left:1.4em}
.doc li{margin:.4em 0}
.doc li>ul,.doc li>ol{margin:.3em 0}
.doc a{color:var(--link)}
.doc blockquote{margin:1.4em 0;padding:16px 20px;background:#fff7d6;
  border-left:4px solid var(--accent);border-radius:0 12px 12px 0}
.doc blockquote p{margin:0;color:#5c4d00}
.doc strong{font-weight:600}

/* FAQ */
.faq{border-bottom:1px solid var(--line);padding:6px 0}
.faq summary{cursor:pointer;font-weight:500;font-size:18px;padding:14px 0;
  list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";color:var(--muted);font-size:24px;font-weight:300}
.faq[open] summary:after{content:"\2013"}
.faq p{margin:0 0 16px;color:var(--muted)}

/* ---- Footer ---- */
.footer{background:var(--bg-alt);border-top:1px solid var(--line);
  font-size:12px;color:var(--muted)}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:34px 22px}
.disclaimer{max-width:none;margin:0 0 16px}
.footer-links{display:flex;flex-wrap:wrap;gap:6px 20px;padding:16px 0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.footer-links a{color:var(--muted)}
.copyright{margin:16px 0 0}

/* ---- Responsive ---- */
@media(max-width:820px){
  .hero{grid-template-columns:1fr;padding-top:48px;text-align:center}
  .hero .sub{margin:0 auto}.cta{justify-content:center}
  .hero-device{order:-1}
  .hero h1{font-size:46px}
  .features{grid-template-columns:1fr 1fr}
  .cards2{grid-template-columns:1fr}
}
@media(max-width:700px){.research{grid-template-columns:1fr}.pullquote{font-size:23px}}
@media(max-width:560px){
  .features{grid-template-columns:1fr}
  .hero h1{font-size:38px}.section-title{font-size:30px}
  .pagehead h1{font-size:36px}
  .links{display:none}
}

.ficon.heart{-webkit-mask-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="black" d="M12 21s-7.5-5-9.5-9.2C1 8.7 2.3 5.5 5.4 5c2-.3 3.7.8 4.6 2.3.3.5.7.5 1 0C11.9 5.8 13.6 4.7 15.6 5c3.1.5 4.4 3.7 2.9 6.8C19.5 16 12 21 12 21z"/></svg>');mask-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="black" d="M12 21s-7.5-5-9.5-9.2C1 8.7 2.3 5.5 5.4 5c2-.3 3.7.8 4.6 2.3.3.5.7.5 1 0C11.9 5.8 13.6 4.7 15.6 5c3.1.5 4.4 3.7 2.9 6.8C19.5 16 12 21 12 21z"/></svg>')}
.ficon.question{-webkit-mask-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="black" d="M12 2a10 10 0 100 20 10 10 0 000-20zm.2 15.5a1.3 1.3 0 110-2.6 1.3 1.3 0 010 2.6zM14 11c-1 .8-1.2 1.2-1.2 2.1h-1.7c0-1.4.4-2.1 1.5-2.9.9-.7 1.2-1 1.2-1.7 0-.8-.6-1.3-1.6-1.3-.8 0-1.5.4-2 1.1L8.9 7.3C9.7 6.2 10.9 5.6 12.4 5.6c2 0 3.4 1.1 3.4 2.9 0 1.2-.5 1.8-1.8 2.5z"/></svg>');mask-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="black" d="M12 2a10 10 0 100 20 10 10 0 000-20zm.2 15.5a1.3 1.3 0 110-2.6 1.3 1.3 0 010 2.6zM14 11c-1 .8-1.2 1.2-1.2 2.1h-1.7c0-1.4.4-2.1 1.5-2.9.9-.7 1.2-1 1.2-1.7 0-.8-.6-1.3-1.6-1.3-.8 0-1.5.4-2 1.1L8.9 7.3C9.7 6.2 10.9 5.6 12.4 5.6c2 0 3.4 1.1 3.4 2.9 0 1.2-.5 1.8-1.8 2.5z"/></svg>')}
.ficon.doc{-webkit-mask-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="black" d="M6 2h8l4 4v16H6zM14 2v4h4M8 12h8M8 15h8M8 18h5" stroke="black" stroke-width="1.6" fill="none"/></svg>');mask-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="black" d="M6 2h8l4 4v16H6zM14 2v4h4M8 12h8M8 15h8M8 18h5" stroke="black" stroke-width="1.6" fill="none"/></svg>')}
.ficon.vitals{-webkit-mask-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="none" stroke="black" stroke-width="1.8" d="M2 13h4l2-6 3 12 3-9 2 3h6"/></svg>');mask-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="none" stroke="black" stroke-width="1.8" d="M2 13h4l2-6 3 12 3-9 2 3h6"/></svg>')}
.ficon.mic{-webkit-mask-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="black" d="M12 3a3 3 0 00-3 3v6a3 3 0 006 0V6a3 3 0 00-3-3zM6 11a6 6 0 0012 0M12 17v4M9 21h6" stroke="black" stroke-width="1.6" fill="none"/></svg>');mask-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="none" stroke="black" stroke-width="1.6" d="M12 3a3 3 0 00-3 3v6a3 3 0 006 0V6a3 3 0 00-3-3zM6 11a6 6 0 0012 0M12 17v4M9 21h6"/></svg>')}
.ficon.share{-webkit-mask-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="none" stroke="black" stroke-width="1.7" d="M12 3v12M8 7l4-4 4 4M5 12v8h14v-8"/></svg>');mask-image:url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="none" stroke="black" stroke-width="1.7" d="M12 3v12M8 7l4-4 4 4M5 12v8h14v-8"/></svg>')}
.ficon{-webkit-mask-size:60%;mask-size:60%}