/* ===========================================================
   Prime Helix — design tokens
   Palette pulled from the wordmark: deep ink navy + antique gold
   on a warm porcelain field. Serif display (editorial, clinical-
   trust register) + a quiet grotesk for body/UI + a mono for data.
=========================================================== */
:root{
  --ink:        #10182B;   /* near-black navy, headlines */
  --ink-soft:   #2B3550;   /* body text on light */
  --paper:      #FAF8F4;   /* porcelain background */
  --paper-dim:  #F1EDE4;   /* card / section fill */
  --box-blue:   #E4EFF7;   /* light-blue content box fill (hero, forms, callouts) */
  --box-blue-line: #C9DEEC;
  --line:       #DDD5C4;   /* hairline borders */
  --gold:       #B08A4E;   /* antique gold, primary accent */
  --gold-deep:  #8C6C39;   /* pressed / hover state */
  --gold-pale:  #E9DCC0;   /* tints, chips */
  --helix-teal: #1F6E63;   /* secondary accent — the "double helix" strand color, used sparingly for data/status */
  --danger:     #9A3B2E;
  --ok:         #2E6B4F;
  --warn:       #A9762B;

  --serif: "Canela","Fraunces",Georgia,"Times New Roman",serif;
  --sans: "Inter","Neue Haas Grotesk",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono: "IBM Plex Mono","SFMono-Regular",Menlo,monospace;

  --r-sm: 3px;
  --r-md: 6px;
  --shadow-card: 0 1px 2px rgba(16,24,43,0.04), 0 8px 24px -12px rgba(16,24,43,0.15);
}

@font-face{
  font-family:"Fraunces";
  src: local("Fraunces");
  font-display: swap;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-soft);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{
  font-family:var(--serif);
  color:var(--ink);
  font-weight:600;
  line-height:1.12;
  margin:0 0 .5em;
  letter-spacing:-0.01em;
}
p{margin:0 0 1em;}
:focus-visible{outline:2px solid var(--gold-deep);outline-offset:2px;}

.wrap{max-width:1180px;margin:0 auto;padding:0 28px;}
@media (max-width:640px){ .wrap{padding:0 18px;} }

/* ---------- Nav ---------- */
.site-nav{
  position:sticky;top:0;z-index:40;
  background:rgba(250,248,244,0.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-nav .bar{display:flex;align-items:center;justify-content:space-between;height:76px;}
.brand{display:flex;align-items:center;gap:12px;}
.brand img{height:42px;width:42px;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-name{font-family:var(--serif);font-size:19px;color:var(--ink);letter-spacing:.01em;}
.brand-sub{font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--gold-deep);font-weight:600;margin-top:2px;}
@media (max-width:400px){ .brand img{height:34px;width:34px;} .brand-name{font-size:16px;} }
.nav-links{display:none;gap:34px;align-items:center;}
@media (min-width:860px){ .nav-links{display:flex;} }
.nav-links a{
  font-size:13px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--ink-soft);position:relative;padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--gold);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{color:var(--ink);}
.nav-cta{
  font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;
  border:1px solid var(--ink);color:var(--ink);
  padding:10px 18px;border-radius:2px;transition:.2s ease;
}
.nav-cta:hover{background:var(--ink);color:var(--paper);}
.nav-toggle{display:flex;background:none;border:0;font-size:22px;color:var(--ink);cursor:pointer;}
@media (min-width:860px){ .nav-toggle{display:none;} }
.mobile-menu{display:none;border-top:1px solid var(--line);padding:14px 0 22px;}
.mobile-menu.open{display:block;}
.mobile-menu a{display:block;padding:10px 0;font-size:15px;color:var(--ink-soft);border-bottom:1px solid var(--line);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:13px;letter-spacing:.06em;text-transform:uppercase;
  padding:14px 26px;border-radius:2px;cursor:pointer;border:1px solid transparent;
  transition:transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
  font-family:var(--sans);
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{background:#050a16;}
.btn-gold{background:var(--gold);color:#fff;}
.btn-gold:hover{background:var(--gold-deep);}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-outline:hover{background:var(--ink);color:var(--paper);}
.btn-ghost{color:var(--gold-deep);border-color:var(--gold-pale);background:#fff;}

/* ---------- Section rhythm ---------- */
section{padding:88px 0;}
@media (max-width:640px){ section{padding:56px 0;} }
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gold-deep);font-weight:600;margin-bottom:16px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--gold);}

/* ---------- Footer ---------- */
footer{background:var(--ink);color:#D8D5CC;padding:56px 0 34px;}
footer a{color:#D8D5CC;}
footer .word-mark{height:20px;filter:brightness(0) invert(1);opacity:.9;margin-bottom:18px;}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
@media (max-width:760px){ footer .cols{grid-template-columns:1fr 1fr;} }
footer h5{color:#fff;font-family:var(--sans);font-size:12px;letter-spacing:.1em;text-transform:uppercase;margin:0 0 14px;font-weight:600;}
footer ul{list-style:none;margin:0;padding:0;}
footer li{margin-bottom:9px;font-size:14px;opacity:.85;}
footer .legal{
  margin-top:44px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  font-size:12.5px;opacity:.6;display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
}
footer .disclaimer{
  margin-top:28px;padding:18px 20px;border:1px solid rgba(255,255,255,.14);border-radius:4px;
  font-size:12.5px;line-height:1.6;opacity:.75;
}

/* ---------- Chips / status ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:11.5px;letter-spacing:.04em;text-transform:uppercase;font-weight:600;
  padding:4px 10px;border-radius:20px;white-space:nowrap;
}
.chip::before{content:"";width:6px;height:6px;border-radius:50%;}
.chip-in{background:#E7F0EA;color:var(--ok);} .chip-in::before{background:var(--ok);}
.chip-low{background:#FBF0DD;color:var(--warn);} .chip-low::before{background:var(--warn);}
.chip-out{background:#F6E7E4;color:var(--danger);} .chip-out::before{background:var(--danger);}
.chip-call{background:var(--paper-dim);color:var(--ink-soft);} .chip-call::before{background:#9A9384;}

/* ---------- Page background imagery ---------- */
.page-bg{
  position:fixed;
  inset:0;
  z-index:-1;
  background-size:cover;
  background-position:center top;
  opacity:0.16;
  pointer-events:none;
}
.page-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, var(--paper) 0%, rgba(250,248,244,0.55) 22%, rgba(250,248,244,0.55) 78%, var(--paper) 100%);
}
.page-bg.tint-blue::after{
  background:linear-gradient(180deg, var(--paper) 0%, rgba(20,45,66,0.12) 20%, rgba(20,45,66,0.10) 75%, var(--paper) 100%);
}
@media (max-width:640px){ .page-bg{ opacity:0.11; } }

/* ---------- Responsive grid override ----------
   Any element tagged .rgrid uses its inline grid-template-columns on
   desktop, but forces a single stacked column below 820px — inline
   styles win specificity normally, so !important is required here to
   override them at the breakpoint. ---------- */
@media (max-width:820px){
  .rgrid{ grid-template-columns: 1fr !important; }
}
@media (max-width:900px){
  .rgrid3{ grid-template-columns: 1fr !important; }
}

/* Readable white containment box for text sitting over a busier background */
.text-box{
  background:rgba(228,239,247,0.94);
  border:1px solid var(--box-blue-line);
  border-radius:8px;
  padding:32px 30px;
  box-shadow:var(--shadow-card);
}

/* ---------- Photo showcase panels (dark navy overlay atop an uploaded photo,
   used inside cards so the image reads clearly while text stays legible) ---------- */
.photo-panel{
  position:relative;
  background-size:cover;
  background-position:center;
  border-radius:8px;
  overflow:hidden;
}
.photo-panel::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(160deg, rgba(16,24,43,0.82) 0%, rgba(16,24,43,0.60) 55%, rgba(16,24,43,0.78) 100%);
}
.photo-panel > *{ position:relative; z-index:1; }

.muted{color:#6B7185;}
.center{text-align:center;}
.divider{height:1px;background:var(--line);border:0;margin:0;}
.skip-link{
  position:absolute;left:-999px;top:auto;background:var(--ink);color:#fff;padding:12px 18px;z-index:100;
}
.skip-link:focus{left:16px;top:16px;}