/* CardioPathway — shared styles for landing pages and /learn articles.
   Matches the home page brand system (Lora + Inter, navy / Signal Red / teal). */

:root{
  --navy:#0E2A5E; --navy2:#113272; --blue:#1E40AF; --teal:#1478B4;
  --red:#E11D48; --ink:#1B2233; --muted:#5B6577; --soft:#F4F6FB; --soft2:#EEF2FA;
  --line:#E4E9F2; --gold:#F4B740; --green:#127A3E;
  --shadow:0 12px 40px rgba(14,42,94,.10); --shadow-sm:0 4px 16px rgba(14,42,94,.08);
  --r:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Inter,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);
  line-height:1.72;background:#fff;-webkit-font-smoothing:antialiased}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.col{max-width:760px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.93);
  backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid var(--line)}
header.site nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-family:Lora,serif;font-weight:700;
  font-size:20px;color:var(--navy);text-decoration:none}
.brand img{height:34px;width:auto}
.tm{font-size:.5em;vertical-align:super;font-weight:600;font-family:Inter,sans-serif;margin-left:1px}
.navlinks{display:flex;align-items:center;gap:24px}
.navlinks a{color:var(--ink);font-weight:500;font-size:15px;text-decoration:none}
.navlinks a:hover{color:var(--blue)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;
  padding:14px 26px;border-radius:999px;text-decoration:none;border:1.5px solid transparent;
  transition:transform .15s ease,box-shadow .15s ease;cursor:pointer}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--red);color:#fff;box-shadow:0 8px 22px rgba(225,29,72,.28)}
.btn-ghost{background:#fff;color:var(--navy);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--navy);background:var(--soft)}
.btn-light{background:#fff;color:var(--navy)}
.btn-sm{padding:11px 22px;font-size:14px}

/* ---------- hero ---------- */
.phero{background:linear-gradient(165deg,#0B2350,#0E2A5E 48%,#123471);color:#fff;padding:64px 0 60px}
.phero .eyebrow{font-size:12.5px;font-weight:700;letter-spacing:2.5px;text-transform:uppercase;
  color:#7FD3FF;margin-bottom:14px}
.phero h1{font-family:Lora,serif;font-size:clamp(32px,5vw,46px);line-height:1.12;
  font-weight:700;letter-spacing:-.6px;margin-bottom:18px}
.phero .lead{font-size:18.5px;color:#C9D8F0;max-width:680px}
.phero .cta{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap}
.byline{margin-top:24px;font-size:14px;color:#8FA6CE;border-top:1px solid rgba(255,255,255,.15);
  padding-top:16px;max-width:680px}

/* ---------- body content ---------- */
main{padding:56px 0 80px}
h2{font-family:Lora,serif;font-size:clamp(24px,3.4vw,31px);color:var(--navy);
  line-height:1.2;margin:44px 0 14px;letter-spacing:-.3px}
h2:first-child{margin-top:0}
h3{font-family:Lora,serif;font-size:20px;color:var(--navy);margin:28px 0 10px}
p{font-size:17px;margin-bottom:18px}
ul,ol{padding-left:24px;margin-bottom:20px}
li{font-size:17px;margin-bottom:10px}
a{color:var(--blue)}
strong{color:var(--navy)}
em{color:var(--navy)}
.intro{font-size:19px;color:var(--muted);margin-bottom:28px}

/* table of contents */
.toc{background:var(--soft);border:1px solid var(--line);border-radius:14px;padding:22px 26px;margin-bottom:36px}
.toc h4{font-size:12.5px;text-transform:uppercase;letter-spacing:1.6px;color:var(--teal);
  margin-bottom:12px;font-weight:700}
.toc ol{margin:0;padding-left:20px}
.toc li{font-size:15.5px;margin-bottom:7px}

/* callouts */
.note{background:var(--soft);border:1px solid var(--line);border-left:4px solid var(--teal);
  border-radius:12px;padding:20px 24px;margin:26px 0}
.note p:last-child{margin-bottom:0}
.note.warn{border-left-color:var(--red);background:#FFF3F5;border-color:#FADBE2}
.note.founder{border-left-color:var(--gold);background:#FFFBF0;border-color:#F3E4B8}
.note h4{font-family:Lora,serif;font-size:17px;color:var(--navy);margin-bottom:8px}

/* stat tiles */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:30px 0}
.stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;
  text-align:center;box-shadow:var(--shadow-sm)}
.stat .n{font-family:Lora,serif;font-size:30px;font-weight:700;color:var(--navy);line-height:1.1}
.stat .n span{color:var(--red)}
.stat .l{font-size:13.5px;color:var(--muted);margin-top:8px;line-height:1.5}

/* comparison / feature cards */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:28px 0}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;box-shadow:var(--shadow-sm)}
.card h3{margin:0 0 8px;font-size:18px}
.card p{font-size:15.5px;color:var(--muted);margin-bottom:0}

/* path/route list */
.route{border:1px solid var(--line);border-radius:14px;padding:22px 24px;margin-bottom:16px;background:#fff}
.route .tag{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:1.2px;
  text-transform:uppercase;color:var(--teal);background:var(--soft2);padding:4px 10px;
  border-radius:999px;margin-bottom:10px}
.route h3{margin:0 0 8px}
.route p:last-child{margin-bottom:0}

/* inline CTA band */
.ctaband{background:linear-gradient(160deg,#0E2A5E,#123471);color:#fff;border-radius:var(--r);
  padding:34px 38px;margin:44px 0;display:flex;justify-content:space-between;
  align-items:center;gap:24px;flex-wrap:wrap}
.ctaband h3{color:#fff;font-size:22px;margin:0 0 6px}
.ctaband p{color:#C9D8F0;margin:0;font-size:16px;max-width:560px}

/* FAQ */
details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
details summary{cursor:pointer;padding:18px 22px;font-weight:600;color:var(--navy);
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;font-size:16.5px}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";font-size:22px;color:var(--teal);font-weight:400}
details[open] summary::after{content:"\2013"}
details .a{padding:0 22px 20px;color:var(--muted);font-size:16px}

/* related links */
.related{border-top:1px solid var(--line);margin-top:50px;padding-top:32px}
.related h3{margin-top:0}
.rel{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.rel a{display:block;border:1px solid var(--line);border-radius:12px;padding:18px;
  text-decoration:none;background:#fff;transition:border-color .15s}
.rel a:hover{border-color:var(--teal)}
.rel strong{display:block;color:var(--navy);font-family:Lora,serif;font-size:16px;margin-bottom:4px}
.rel span{color:var(--muted);font-size:14px}

/* footer */
footer.site{background:var(--navy);color:#C9D6EC;padding:48px 0 26px;margin-top:60px}
footer.site .fcols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px;margin-bottom:34px}
footer.site .brand{color:#fff;margin-bottom:12px}
footer.site p{color:#9FB2D4;font-size:14.5px}
footer.site h4{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:1px;margin-bottom:12px}
footer.site a{display:block;color:#A9BCDD;font-size:14.5px;margin-bottom:9px;text-decoration:none}
footer.site a:hover{color:#fff}
.compliance{border-top:1px solid rgba(255,255,255,.14);padding-top:22px;font-size:12.5px;
  color:#7E92B6;line-height:1.7}
.compliance .row{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:12px}
.compliance a{display:inline;color:#A9BCDD;text-decoration:underline;margin:0}

@media(max-width:820px){
  .stats,.cards,.rel,footer.site .fcols{grid-template-columns:1fr}
  .navlinks{display:none}
  .ctaband{flex-direction:column;align-items:flex-start}
  main{padding:44px 0 60px}
}