/* =========================================================================
   PepTrack — marketing site
   Clinical-premium: ink / teal / emerald / azure. Private, precise, calm.
   ========================================================================= */
:root{
  --ink:#07120F; --bg2:#0A1714; --surface:#0E1B17; --surface2:#122722;
  --mint:#EAF6F1; --sage:#A7C4BB; --muted:#7E9A92; --dim:#56756C;
  --teal:#19E3C4; --emerald:#00C389; --azure:#0FA3E0; --azure2:#0082DE;
  --line:rgba(25,227,196,.14);
  --line2:rgba(25,227,196,.10);
  --display:'Space Grotesk', 'Inter', -apple-system, sans-serif;
  --sans:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--ink); color:var(--mint);
  font-family:var(--sans); font-weight:400; line-height:1.6;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.container{max-width:var(--maxw);margin:0 auto;padding:0 28px;width:100%}

/* ---- type ---- */
.eyebrow{
  font-size:12px;letter-spacing:.26em;text-transform:uppercase;
  color:var(--teal);font-weight:600;margin-bottom:18px;
}
.eyebrow--center{text-align:center}
.display{
  font-family:var(--display);font-weight:600;
  font-size:clamp(46px,7.4vw,88px);line-height:1.0;letter-spacing:-.02em;
  color:var(--mint);margin-bottom:24px;
}
.display em{
  font-style:normal;
  background:linear-gradient(120deg,var(--teal),var(--azure));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.h2{
  font-family:var(--display);font-weight:600;
  font-size:clamp(30px,4.2vw,50px);line-height:1.08;letter-spacing:-.015em;
  color:var(--mint);margin-bottom:18px;
}
.h2--center{text-align:center}
.lede{font-size:clamp(17px,1.5vw,20px);color:var(--sage);max-width:62ch;line-height:1.7}
.lede--center{text-align:center;margin-left:auto;margin-right:auto;margin-top:14px}
.body{font-size:17px;color:var(--sage);line-height:1.75;max-width:54ch}

/* ---- buttons / fields ---- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-family:var(--sans);font-weight:600;font-size:15px;letter-spacing:.01em;
  padding:15px 26px;border-radius:14px;cursor:pointer;border:1px solid transparent;
  transition:transform .15s ease, box-shadow .25s ease, background .2s ease;white-space:nowrap;
}
.btn--sm{padding:10px 18px;font-size:14px;border-radius:11px}
.btn--primary{
  background:linear-gradient(135deg,var(--teal),var(--azure));color:#04201B;
  box-shadow:0 10px 34px rgba(15,163,224,.26);
}
.btn--primary:hover{transform:translateY(-1px);box-shadow:0 14px 42px rgba(25,227,196,.34)}
.btn--ghost{border-color:var(--line);color:var(--mint);background:rgba(25,227,196,.03)}
.btn--ghost:hover{border-color:var(--teal);background:rgba(25,227,196,.08)}
.appstore svg{flex:none}
.field{
  flex:1;min-width:0;background:rgba(0,0,0,.32);border:1px solid var(--line);
  border-radius:14px;padding:15px 20px;color:var(--mint);font-family:var(--sans);
  font-size:15px;outline:none;transition:border-color .2s ease;
}
.field::placeholder{color:var(--dim)}
.field:focus{border-color:var(--teal)}

/* ---- topbar ---- */
.topbar{position:sticky;top:0;z-index:50;
  background:rgba(7,18,15,.74);backdrop-filter:saturate(150%) blur(14px);
  border-bottom:1px solid var(--line2);
}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.brand{display:flex;align-items:center;gap:11px}
.brand__badge{width:34px;height:34px;border-radius:9px;box-shadow:0 2px 12px rgba(0,0,0,.5)}
.brand__word{font-family:var(--display);font-weight:600;letter-spacing:.01em;font-size:18px;color:var(--mint)}
.topbar__nav{display:flex;gap:28px;margin-left:auto;margin-right:8px}
.topbar__nav a{font-size:14px;color:var(--sage);transition:color .2s}
.topbar__nav a:hover{color:var(--teal)}

/* ---- hero ---- */
.hero{position:relative;overflow:hidden;padding:clamp(52px,8vw,104px) 0 clamp(36px,5vw,64px)}
.hero__glow{position:absolute;top:-300px;left:50%;transform:translateX(-30%);
  width:1100px;height:780px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(25,227,196,.16),rgba(15,163,224,.07) 45%,transparent 72%);
  pointer-events:none;filter:blur(18px);
}
.hero__inner{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:54px;align-items:center}
.hero__copy{max-width:620px}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 22px}
.hero__trust{display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:12.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--dim)}
.hero__trust i{color:var(--emerald);font-style:normal}
.hero__device{display:flex;justify-content:center}

/* Full-bleed premium product showcase (Higgsfield render), fades into the dark page */
.showcase{position:relative;margin:clamp(6px,2vw,22px) 0 clamp(4px,2vw,16px)}
.showcase__img{display:block;width:100%;max-height:520px;object-fit:cover;object-position:center;
  -webkit-mask-image:linear-gradient(180deg,transparent 0,#000 14%,#000 86%,transparent 100%);
  mask-image:linear-gradient(180deg,transparent 0,#000 14%,#000 86%,transparent 100%)}

/* ---- device frame + screen mock ---- */
.device{position:relative;width:min(322px,80vw);padding:11px;border-radius:46px;
  background:linear-gradient(165deg,#15302A,#070D0B);
  border:1px solid rgba(25,227,196,.22);
  box-shadow:0 46px 100px rgba(0,0,0,.62), 0 0 0 1px rgba(0,0,0,.4) inset, 0 0 60px rgba(25,227,196,.06);
}
.device--angled{transform:rotate(2.2deg)}
.screen{
  border-radius:36px;overflow:hidden;background:linear-gradient(180deg,#08130F,#0B1A16);
  border:1px solid rgba(25,227,196,.08);padding:16px 16px 10px;min-height:560px;
  display:flex;flex-direction:column;gap:12px;
}
.screen__status{display:flex;justify-content:space-between;align-items:center;
  font-size:12px;font-weight:600;color:var(--mint);padding:2px 6px 4px}
.screen__dots{letter-spacing:-2px;font-size:9px;color:var(--sage)}
.screen__nav{display:flex;align-items:center;justify-content:space-between;padding:2px 4px}
.screen__title{font-family:var(--display);font-weight:600;font-size:24px;color:var(--mint)}
.screen__pill{font-size:11px;font-weight:600;color:var(--emerald);
  background:rgba(0,195,137,.12);border:1px solid rgba(0,195,137,.25);
  padding:5px 11px;border-radius:999px}
.screen__section{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);padding:6px 4px 0}
.screen__tabs{margin-top:auto;display:flex;justify-content:space-between;
  padding:12px 14px 6px;border-top:1px solid var(--line2);
  font-size:11px;color:var(--dim)}
.screen__tabs .on{color:var(--teal);font-weight:600}

.card{background:var(--surface);border:1px solid var(--line2);border-radius:18px;padding:15px 16px}
.card--accent{background:
  linear-gradient(140deg,rgba(25,227,196,.10),rgba(15,163,224,.05)),var(--surface);
  border-color:rgba(25,227,196,.20)}
.card__k{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--dim);margin-bottom:6px}
.card__v{font-family:var(--display);font-weight:600;font-size:19px;color:var(--mint);margin-bottom:10px}
.card__row{display:flex;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--muted);padding:6px 0;border-top:1px solid var(--line2)}
.card__row:first-of-type{border-top:none}
.card__row b{color:var(--mint);font-weight:600}
.card__row--mini{font-size:12px;padding-top:8px;margin-top:6px}
.spark{width:100%;height:78px;display:block}

/* calculator screen */
.calc{display:flex;flex-direction:column;gap:1px;background:var(--line2);
  border:1px solid var(--line2);border-radius:16px;overflow:hidden}
.calc__row{display:flex;justify-content:space-between;align-items:center;
  background:var(--surface);padding:13px 15px;font-size:14px;color:var(--muted)}
.calc__row b{color:var(--sage);font-weight:500;font-size:13px}
.calc__result{background:
  linear-gradient(140deg,rgba(25,227,196,.12),rgba(15,163,224,.05)),var(--surface);
  border:1px solid rgba(25,227,196,.22);border-radius:18px;padding:18px 16px;text-align:center}
.calc__k{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--dim)}
.calc__big{font-family:var(--display);font-weight:700;font-size:30px;
  background:linear-gradient(120deg,var(--teal),var(--azure));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin:4px 0 14px}
.syringe{height:14px;border-radius:999px;background:rgba(0,0,0,.4);
  border:1px solid var(--line);overflow:hidden}
.syringe__fill{height:100%;width:58%;border-radius:999px;
  background:linear-gradient(90deg,var(--teal),var(--azure))}
.calc__note{font-size:11px;color:var(--dim);margin-top:10px}

/* export screen */
.export__row{display:flex;gap:10px;justify-content:center;padding:4px 0}
.export__tag{font-size:12px;font-weight:600;color:var(--teal);
  border:1px solid rgba(25,227,196,.3);border-radius:10px;padding:8px 18px;
  background:rgba(25,227,196,.06)}

/* ---- disclaimer ---- */
.disclaimer{background:rgba(0,0,0,.25);border-top:1px solid var(--line2);border-bottom:1px solid var(--line2)}
.disclaimer__inner{display:flex;gap:14px;align-items:flex-start;padding:18px 28px;max-width:980px;margin:0 auto}
.disclaimer__mark{color:var(--teal);font-size:18px;line-height:1.5;flex:none}
.disclaimer p{font-size:13.5px;color:var(--muted);line-height:1.6}
.disclaimer b{color:var(--sage)}

/* ---- value strip ---- */
.strip{background:rgba(0,0,0,.18)}
.strip__inner{display:flex;flex-wrap:wrap;justify-content:center;gap:14px 34px;padding:22px 28px;
  font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--dim)}

/* ---- sections ---- */
.section{padding:clamp(60px,8vw,116px) 0}
.section--dark{background:linear-gradient(180deg,#070D0B,#0A1714)}

/* features */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:52px;
  background:var(--line2);border:1px solid var(--line2);border-radius:22px;overflow:hidden}
.feature{background:var(--surface);padding:32px 28px}
.feature__mark{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;
  border-radius:13px;background:rgba(25,227,196,.1);color:var(--teal);font-size:22px;font-weight:600;margin-bottom:18px}
.feature h3{font-family:var(--display);font-weight:600;font-size:21px;color:var(--mint);margin-bottom:9px;letter-spacing:-.01em}
.feature p{font-size:14.5px;color:var(--sage);line-height:1.65}

/* two-col */
.two-col{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.two-col--rev .hero__device{order:-1}
.two-col .btn{margin-top:26px}

/* faq */
.faq{max-width:760px;margin:48px auto 0;display:flex;flex-direction:column;gap:12px}
.faq__item{background:var(--surface);border:1px solid var(--line2);border-radius:16px;padding:4px 22px}
.faq__item summary{list-style:none;cursor:pointer;padding:18px 0;font-weight:600;
  font-size:16.5px;color:var(--mint);display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{content:"+";color:var(--teal);font-size:22px;font-weight:400;flex:none}
.faq__item[open] summary::after{content:"–"}
.faq__item p{font-size:15px;color:var(--sage);line-height:1.7;padding:0 0 20px}

/* waitlist */
.section--waitlist{background:
  radial-gradient(closest-side at 50% 0,rgba(25,227,196,.12),transparent 70%),var(--ink);
  border-top:1px solid var(--line2)}
.waitlist{display:flex;flex-direction:column;align-items:center;text-align:center}
.waitlist__badge{width:60px;height:60px;border-radius:15px;margin-bottom:24px;
  box-shadow:0 10px 30px rgba(0,0,0,.5)}
.waitlist__form{display:flex;gap:10px;margin:30px 0 14px;width:100%;max-width:480px}
.waitlist__fineprint{font-size:13.5px;color:var(--dim)}
.waitlist__fineprint a{color:var(--teal)}

/* footer */
.footer{border-top:1px solid var(--line2);padding:46px 0;background:#060C0A}
.footer__inner{display:flex;flex-direction:column;align-items:center;gap:13px;text-align:center}
.footer__disclaimer{font-size:12.5px;color:var(--dim);max-width:62ch;line-height:1.6}
.footer__line{font-size:13px;color:var(--muted)}
.footer__links{font-size:13.5px;color:var(--sage)}
.footer__links a:hover{color:var(--teal)}

/* ---- responsive ---- */
@media (max-width:900px){
  .hero__inner{grid-template-columns:1fr;gap:46px;text-align:center}
  .hero__copy{margin:0 auto}
  .hero__cta{justify-content:center}
  .hero__trust{justify-content:center}
  .two-col{grid-template-columns:1fr;gap:42px}
  .two-col--rev .hero__device{order:0}
  .two-col .body{margin-left:auto;margin-right:auto}
  .two-col .eyebrow,.two-col .h2{text-align:center}
  .features{grid-template-columns:1fr 1fr}
  .topbar__nav{display:none}
}
@media (max-width:560px){
  .features{grid-template-columns:1fr}
  .waitlist__form{flex-direction:column}
  .waitlist__form .btn{width:100%}
  .field{text-align:center}
  .strip__inner{gap:10px 20px;font-size:11px}
  .disclaimer__inner{padding:16px 22px}
}