:root{
    --bg:#FFFFFF;
    --bg-soft:#F4F7FA;
    --bg-tint:#EAF1F7;
    --ink:#15212E;
    --ink-soft:#4A5867;
    --line:#DCE4EC;
    --blue:#1E5A8A;
    --blue-bright:#2272A8;
    --teal:#277777;
    --iron:#B5532A;
    --iron-soft:#FBF1EC;
    --sans:'Inter',system-ui,-apple-system,sans-serif;
    --serif:'Fraunces',Georgia,serif;
    --wrap:1120px;
    --r:14px;
    --shadow:0 1px 2px rgba(21,33,46,.04),0 12px 32px -12px rgba(21,33,46,.14);
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased;font-size:17px}
  a{color:var(--blue);text-decoration:none}
  a:hover{text-decoration:underline}
  h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.12;letter-spacing:-.01em;color:var(--ink)}
  .wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
  .eyebrow{font-size:.78rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--blue-bright)}

  /* ---- Header ---- */
  header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
  .nav{display:flex;align-items:center;justify-content:space-between;height:68px}
  .brand{font-family:var(--serif);font-weight:600;font-size:1.18rem;color:var(--ink);letter-spacing:-.01em}
  .brand span{color:var(--blue)}
  .nav ul{display:flex;gap:30px;list-style:none}
  .nav ul a{color:var(--ink-soft);font-size:.95rem;font-weight:500}
  .nav ul a:hover{color:var(--blue);text-decoration:none}
  .nav .cta{background:var(--blue);color:#fff;padding:9px 18px;border-radius:999px;font-size:.9rem;font-weight:600}
  .nav .cta:hover{background:var(--blue-bright);text-decoration:none}
  .menu-btn{display:none;background:none;border:0;font-size:1.5rem;color:var(--ink);cursor:pointer}

  /* ---- Hero ---- */
  .hero{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;padding:78px 0 70px}
  .hero h1{font-size:clamp(2.5rem,5vw,3.7rem);margin:18px 0 0}
  .hero .lede{font-size:1.22rem;color:var(--ink-soft);margin-top:22px;max-width:30em}
  .hero .actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}
  .btn{display:inline-block;padding:13px 26px;border-radius:999px;font-weight:600;font-size:1rem}
  .btn-primary{background:var(--blue);color:#fff}
  .btn-primary:hover{background:var(--blue-bright);text-decoration:none}
  .btn-ghost{border:1px solid var(--line);color:var(--ink)}
  .btn-ghost:hover{border-color:var(--blue);color:var(--blue);text-decoration:none}
  .portrait{position:relative}
  .portrait img{width:100%;border-radius:20px;display:block;box-shadow:var(--shadow);aspect-ratio:5/6;object-fit:cover;object-position:center top}
  .portrait::after{content:"";position:absolute;inset:auto -18px -18px auto;width:160px;height:160px;background:radial-gradient(circle at 30% 30%,var(--bg-tint),transparent 70%);border-radius:50%;z-index:-1}

  /* ---- Trust strip ---- */
  .trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-soft)}
  .trust .wrap{display:flex;flex-wrap:wrap;gap:14px 36px;align-items:center;padding-top:22px;padding-bottom:22px}
  .trust .item{display:flex;align-items:center;gap:10px;font-size:.95rem;color:var(--ink-soft)}
  .trust .item strong{color:var(--ink);font-weight:600}
  .dot{width:7px;height:7px;border-radius:50%;background:var(--teal);flex:none}

  /* ---- Section frame ---- */
  section.block{padding:84px 0}
  .head{max-width:40em;margin-bottom:42px}
  .head h2{font-size:clamp(1.9rem,3.4vw,2.5rem);margin-top:12px}
  .head p{color:var(--ink-soft);font-size:1.1rem;margin-top:14px}

  /* ---- Explainer cards ---- */
  .cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r);padding:28px 26px 26px;background:#fff;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfdbe6;text-decoration:none}
  .card .tag{font-size:.74rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--teal)}
  .card h3{font-size:1.32rem;margin:14px 0 0}
  .card p{color:var(--ink-soft);font-size:.98rem;margin-top:12px;flex:1}
  .card .more{margin-top:18px;font-weight:600;color:var(--blue);font-size:.95rem}
  .card .more::after{content:" →";transition:margin .18s ease}
  .card:hover .more::after{margin-left:4px}

  /* ---- Audience split ---- */
  .audience{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .split{display:grid;grid-template-columns:1fr 1fr;gap:24px}
  .panel{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:34px 32px}
  .panel h3{font-size:1.4rem;display:flex;align-items:center;gap:12px}
  .panel .ic{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;flex:none;color:#fff;font-size:1.1rem}
  .panel.patients .ic{background:var(--teal)}
  .panel.clinicians .ic{background:var(--blue)}
  .panel p{color:var(--ink-soft);margin-top:14px;font-size:1.02rem}

  /* ---- Iron Doctor ---- */
  .iron{background:linear-gradient(120deg,#fff 0%,var(--iron-soft) 100%);border:1px solid #F0DDD2;border-radius:18px;padding:46px 44px;display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center}
  .iron .eyebrow{color:var(--iron)}
  .iron h2{font-size:clamp(1.8rem,3vw,2.3rem);margin-top:12px}
  .iron p{color:var(--ink-soft);margin-top:14px;font-size:1.08rem}
  .iron .btn-iron{display:inline-block;margin-top:24px;background:var(--iron);color:#fff;padding:13px 26px;border-radius:999px;font-weight:600}
  .iron .btn-iron:hover{background:#9C4523;text-decoration:none}
  .iron .crest{justify-self:center;width:150px;height:150px;border-radius:50%;background:#fff;border:1px solid #F0DDD2;display:grid;place-items:center;text-align:center;box-shadow:var(--shadow)}
  .iron .crest b{font-family:var(--serif);color:var(--iron);font-size:1.05rem;line-height:1.2}
  .iron .crest small{display:block;color:var(--ink-soft);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;margin-top:6px}

  /* ---- Footer ---- */
  footer.site{background:#11202D;color:#C3D0DB;padding:54px 0 30px;font-size:.94rem}
  footer .cols{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.1)}
  footer .brand-f{font-family:var(--serif);color:#fff;font-size:1.2rem}
  footer h4{color:#fff;font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px;font-weight:600;font-family:var(--sans)}
  footer ul{list-style:none}
  footer ul li{margin-bottom:9px}
  footer a{color:#C3D0DB}
  footer a:hover{color:#fff}
  .disclaimer{margin-top:24px;color:#8295A4;font-size:.84rem;line-height:1.6;max-width:62em}
  .legal{margin-top:18px;color:#7A8B9B;font-size:.82rem}

  /* ---- Responsive ---- */
  @media(max-width:880px){
    .hero{grid-template-columns:1fr;gap:36px;padding:48px 0;text-align:center}
    .portrait{order:-1;max-width:380px;margin:0 auto;justify-self:center}
    .hero h1{margin-left:auto;margin-right:auto}
    .hero .lede{margin-left:auto;margin-right:auto}
    .hero .actions{justify-content:center}
    .cards{grid-template-columns:1fr}
    .split{grid-template-columns:1fr}
    .iron{grid-template-columns:1fr;text-align:center}
    .iron .crest{margin-top:6px}
    footer .cols{grid-template-columns:1fr 1fr}
    .nav ul{display:none}
    .menu-btn{display:block}
    /* Mobile dropdown menu (toggled by .menu-btn via site.js) */
    .wrap.nav{position:relative}
    header.site.nav-open .nav ul{
      display:flex;flex-direction:column;gap:0;
      position:absolute;left:0;right:0;top:100%;
      background:#fff;border-bottom:1px solid var(--line);
      box-shadow:var(--shadow);padding:6px 0;z-index:60}
    header.site.nav-open .nav ul li{width:100%}
    header.site.nav-open .nav ul a{display:block;padding:12px 28px;font-size:1rem}
    header.site.nav-open .nav ul a:hover{background:var(--bg-soft);text-decoration:none}
    .menu-btn[aria-expanded="true"]{color:var(--blue)}
  }
  @media(max-width:480px){footer .cols{grid-template-columns:1fr}}

/* ---- Brand link & interior pages ---- */
a.brand:hover{text-decoration:none}
.page-hero{padding-top:64px;padding-bottom:10px}
.page-hero .eyebrow{margin-bottom:14px}
.page-hero h1{font-size:clamp(2.2rem,4.4vw,3.1rem)}
.page-hero .lede{font-size:1.18rem;color:var(--ink-soft);margin-top:18px;max-width:34em}
.prose{max-width:42em}
.prose p{margin-top:18px;color:#2c3b4a}
.prose h2{font-size:1.6rem;margin-top:40px}
.prose h3{font-size:1.2rem;margin-top:28px;font-family:var(--sans);font-weight:600}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.about-grid .portrait img{aspect-ratio:5/6}
.creds{list-style:none;margin-top:14px}
.creds li{padding:12px 0;border-bottom:1px solid var(--line);display:flex;gap:12px;color:var(--ink-soft)}
.creds li:last-child{border-bottom:0}
.creds b{color:var(--ink);font-weight:600}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:8px}
.contact-card{border:1px solid var(--line);border-radius:var(--r);padding:28px 26px;background:#fff}
.contact-card h3{font-size:1.2rem;font-family:var(--sans);font-weight:600}
.contact-card p{color:var(--ink-soft);margin-top:8px;font-size:.98rem}
.contact-card a.btn-primary{margin-top:18px}
.notice{background:var(--bg-soft);border:1px solid var(--line);border-left:3px solid var(--teal);border-radius:10px;padding:18px 22px;color:var(--ink-soft);font-size:.96rem;margin-top:28px}
@media(max-width:880px){.about-grid{grid-template-columns:1fr;gap:30px}.about-grid .portrait{max-width:360px}.contact-grid{grid-template-columns:1fr}}

/* ---- Footer social ---- */
.social{display:flex;gap:12px;margin-top:18px}
.social a{display:grid;place-items:center;width:38px;height:38px;border-radius:9px;border:1px solid rgba(255,255,255,.16);color:#C3D0DB;transition:background .18s ease,color .18s ease,border-color .18s ease}
.social a:hover{background:#1E5A8A;border-color:#1E5A8A;color:#fff;text-decoration:none}
.social svg{width:18px;height:18px;fill:currentColor}
.footmail{margin-top:14px}
.footmail a{color:#C3D0DB}
.footmail a:hover{color:#fff}

/* ---- Accessibility ---- */
/* Visible keyboard focus (mouse clicks stay clean via :focus-visible) */
a:focus-visible,button:focus-visible,.btn:focus-visible,.cta:focus-visible,
.card:focus-visible,.btn-iron:focus-visible,.menu-btn:focus-visible{
  outline:3px solid var(--blue-bright);outline-offset:3px;border-radius:3px}
/* Light focus ring on the dark footer for contrast */
footer.site a:focus-visible{outline:3px solid #A9D3F5;outline-offset:3px}

/* Skip-to-content link: off-screen until focused by keyboard */
.skip-link{position:absolute;left:8px;top:-48px;z-index:200;
  background:var(--blue);color:#fff;padding:10px 16px;border-radius:8px;
  font-weight:600;transition:top .15s ease}
.skip-link:focus{top:8px;outline:3px solid #A9D3F5;outline-offset:2px}

/* In-content text links are underlined, not distinguished by color alone */
.prose a,.notice a,.head p a,.lede a{text-decoration:underline}

/* Respect users who prefer reduced motion */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
  .card:hover{transform:none}
}