/* ============================================================
   Intelligent Duck — shared design system
   Built on the supplied MUI theme tokens.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Nunito:wght@600;700;800&display=swap');

:root{
  /* Brand blue scale (from theme.js) */
  --blue-50:#EFF6FF;  --blue-100:#DBEAFE; --blue-200:#BFDBFE;
  --blue-300:#93C5FD; --blue-400:#60A5FA; --blue-500:#2563EB;
  --blue-600:#1D4ED8; --blue-700:#1A46C1; --blue-800:#1E40AF;
  --blue-900:#1E3A8A;

  --primary:#2563EB;
  --primary-strong:#1D4ED8;
  --sky:#0EA5E9;                /* secondary accent */
  --sky-soft:#E0F2FE;

  /* Neutrals — cool, low-chroma */
  --ink:#212B36;                /* text primary */
  --muted:#637381;              /* text secondary */
  --faint:#919EAB;
  --line:#E4E8EE;
  --line-soft:#EDF0F4;
  --bg:#F6F7F9;                 /* page background */
  --paper:#FFFFFF;
  --paper-2:#FBFCFD;

  /* Deep navy dark sections */
  --navy:#0B0F19;
  --navy-2:#111726;
  --navy-3:#1A2234;
  --navy-line:rgba(255,255,255,0.09);
  --on-navy:#F5F8FA;
  --on-navy-muted:#9DA4B3;

  /* Status */
  --green:#16A34A; --green-soft:#DCFCE7;
  --amber:#D97706; --amber-soft:#FEF3C7;
  --red:#DC2626;   --red-soft:#FEE2E2;
  --violet:#7C3AED;--violet-soft:#EDE9FE;

  /* Shape & shadow (from theme) */
  --r:8px; --r-lg:14px; --r-xl:20px; --pill:999px;
  --shadow-sm:0 1px 2px rgba(145,158,171,0.16);
  --shadow:0 4px 12px rgba(145,158,171,0.12);
  --shadow-md:0 12px 28px rgba(145,158,171,0.18);
  --shadow-lg:0 28px 60px rgba(33,43,54,0.18);
  --shadow-navy:0 30px 70px rgba(5,8,16,0.55);

  --maxw:1200px;
  --nav-h:68px;

  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:"SFMono-Regular",ui-monospace,"JetBrains Mono",Menlo,Consolas,monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  line-height:1.55;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3,h4{margin:0;line-height:1.08;letter-spacing:-0.02em;font-weight:700}
p{margin:0}
::selection{background:var(--blue-200);color:var(--ink)}

/* ---------- Layout helpers ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.center{text-align:center}
.eyebrow{
  font-size:12.5px;font-weight:700;letter-spacing:0.14em;text-transform:uppercase;
  color:var(--primary);display:inline-flex;align-items:center;gap:8px;
}
.eyebrow.on-navy{color:var(--blue-300)}
.eyebrow::before{content:"";width:18px;height:1.5px;background:currentColor;border-radius:2px;opacity:.7}
.lead{font-size:19px;color:var(--muted);max-width:60ch}
.kicker{color:var(--muted);font-size:17px}

h1.display{font-size:clamp(40px,5.4vw,68px);font-weight:800;letter-spacing:-0.035em}
h2.title{font-size:clamp(30px,3.6vw,46px);font-weight:800;letter-spacing:-0.03em}
h3.sub{font-size:clamp(21px,2.2vw,26px);font-weight:700}

.grad-ink{
  background:linear-gradient(98deg,var(--primary) 0%,var(--sky) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;justify-content:center;
  font-family:var(--font);font-weight:600;font-size:15px;
  border-radius:var(--pill);padding:12px 22px;cursor:pointer;border:1px solid transparent;
  transition:transform .16s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(37,99,235,.28)}
.btn-primary:hover{background:var(--primary-strong);box-shadow:0 10px 24px rgba(37,99,235,.34)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--faint);background:#fff}
.btn-light{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-light:hover{box-shadow:var(--shadow)}
.btn-on-navy{background:rgba(255,255,255,.08);color:#fff;border-color:var(--navy-line)}
.btn-on-navy:hover{background:rgba(255,255,255,.15)}
.btn-lg{padding:15px 28px;font-size:16px}
.btn-arrow{transition:transform .18s ease}
.btn:hover .btn-arrow{transform:translateX(3px)}

.link-arrow{display:inline-flex;align-items:center;gap:7px;color:var(--primary);font-weight:600;font-size:15px}
.link-arrow svg{transition:transform .18s ease}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- Pills / chips / badges ---------- */
.chip{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;
  padding:6px 13px;border-radius:var(--pill);background:#fff;border:1px solid var(--line);color:var(--muted);
}
.chip .dot{width:7px;height:7px;border-radius:50%;background:var(--primary)}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;
  padding:4px 10px;border-radius:var(--pill);letter-spacing:.01em;white-space:nowrap;
}
.badge.green{background:var(--green-soft);color:#15803D}
.badge.amber{background:var(--amber-soft);color:#B45309}
.badge.red{background:var(--red-soft);color:#B91C1C}
.badge.blue{background:var(--blue-100);color:var(--blue-700)}
.badge.violet{background:var(--violet-soft);color:#6D28D9}
.badge.grey{background:#EEF1F5;color:var(--muted)}

/* ---------- Cards ---------- */
.card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);
}
.card-pad{padding:28px}
.card-hover{transition:transform .2s ease,box-shadow .25s ease,border-color .2s ease}
.card-hover:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--blue-200)}

/* ---------- Nav ---------- */
.nav{
  position:sticky;top:0;z-index:60;height:var(--nav-h);
  background:rgba(246,247,249,.82);backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid transparent;transition:border-color .2s,background .2s;
}
.nav.scrolled{border-bottom-color:var(--line);background:rgba(255,255,255,.86)}
.nav-inner{max-width:var(--maxw);margin:0 auto;height:100%;padding:0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:18px;letter-spacing:-0.02em}
.brand .mark{
  width:30px;height:30px;border-radius:9px;flex:none;position:relative;
  background:linear-gradient(140deg,var(--primary),var(--sky));
  box-shadow:0 4px 10px rgba(37,99,235,.32);
}
.brand .mark::after{content:"";position:absolute;width:9px;height:9px;border-radius:50%;
  background:#fff;top:7px;right:7px;box-shadow:0 0 0 3px rgba(255,255,255,.25)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  font-size:14.5px;font-weight:500;color:var(--muted);padding:8px 14px;border-radius:var(--pill);
  transition:color .15s,background .15s;
}
.nav-links a:hover{color:var(--ink);background:rgba(99,115,129,.08)}
.nav-links a.active{color:var(--primary);font-weight:600}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-burger{display:none}

/* ---------- Footer ---------- */
.footer{background:var(--navy);color:var(--on-navy-muted);padding:72px 0 36px;margin-top:0}
.footer a{color:var(--on-navy-muted);transition:color .15s}
.footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer .brand{color:#fff}
.footer .brand .mark{box-shadow:none}
.footer h5{color:#fff;font-size:13px;letter-spacing:.1em;text-transform:uppercase;margin:0 0 16px;font-weight:700}
.footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px;font-size:14.5px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;
  margin-top:56px;padding-top:26px;border-top:1px solid var(--navy-line);font-size:13px}
.footer-bottom .flags{display:flex;gap:14px}

/* ---------- Dark section ---------- */
.dark{background:var(--navy);color:var(--on-navy);position:relative;overflow:hidden}
.dark h1,.dark h2,.dark h3,.dark h4{color:#fff}
.dark .lead,.dark .kicker{color:var(--on-navy-muted)}
.dark .card{background:var(--navy-2);border-color:var(--navy-line);box-shadow:var(--shadow-navy)}
.dark-glow{position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(700px 380px at 78% 8%,rgba(37,99,235,.22),transparent 60%),
             radial-gradient(560px 360px at 10% 95%,rgba(14,165,233,.16),transparent 60%);}

/* ---------- Grid utilities ---------- */
.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

/* ---------- Integration chips ---------- */
.intg{display:inline-flex;align-items:center;gap:9px;padding:9px 15px;border-radius:var(--pill);
  background:#fff;border:1px solid var(--line);font-weight:600;font-size:14px;color:var(--ink);
  box-shadow:var(--shadow-sm)}
.intg .ic{width:18px;height:18px;border-radius:5px;flex:none;overflow:hidden}

/* Avatar (shared) */
.av{display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;
  background:linear-gradient(140deg,#2563EB,#0EA5E9);width:34px;height:34px;border-radius:9px;font-size:12.5px;flex:none}

/* ---------- Reveal-on-scroll ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.08s}
.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}
.reveal[data-d="4"]{transition-delay:.32s}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------- Section heading block ---------- */
.shead{max-width:720px}
.shead.center{margin:0 auto}
.shead h2{margin:14px 0 16px}

/* ---------- Stat ---------- */
.stat .n{font-size:clamp(34px,4vw,52px);font-weight:800;letter-spacing:-0.03em;line-height:1}
.stat .l{color:var(--muted);font-size:15px;margin-top:8px}
.dark .stat .l{color:var(--on-navy-muted)}

/* ---------- Responsive ---------- */
@media (max-width:1040px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:880px){
  .section{padding:72px 0}
  .g3,.g4{grid-template-columns:repeat(2,1fr)}
  .nav-links{display:none}
  .nav-burger{display:inline-flex}
}
@media (max-width:680px){
  .wrap{padding:0 20px}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  h1.display{font-size:clamp(34px,9vw,46px)}
}

/* ---------- Mobile menu ---------- */
.mobile-menu{position:fixed;inset:var(--nav-h) 0 0;background:#fff;z-index:55;
  transform:translateY(-8px);opacity:0;pointer-events:none;transition:.2s;padding:24px 28px;
  display:flex;flex-direction:column;gap:6px;border-top:1px solid var(--line)}
.mobile-menu.open{opacity:1;transform:none;pointer-events:auto}
.mobile-menu a{font-size:19px;font-weight:600;padding:14px 4px;border-bottom:1px solid var(--line-soft)}
.nav-burger{background:none;border:1px solid var(--line);border-radius:10px;width:42px;height:42px;
  align-items:center;justify-content:center;cursor:pointer}
.nav-burger span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink)}
.nav-burger span::before{top:-6px}.nav-burger span::after{top:6px}
.trial-alt-link{display:block;text-align:center;margin-top:10px;font-size:13px;color:var(--muted);text-decoration:none}
.trial-alt-link:hover{text-decoration:underline}
.pcr-demo-link{color:inherit;text-decoration:none}
.pcr-demo-link:hover{text-decoration:underline}