/* ============================================================
   MUCOSAL INTELLIGENCE — Design System
   Deep-tech healthcare. Quantification. Clinical trust.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=IBM+Plex+Mono:wght@400;500;600&family=Newsreader:opsz,wght@6..72,400;6..72,500;6..72,600;6..72,700&display=swap');

:root {
  /* ---- Spectrum palette — modern, warm, high-tech ----
     Trusted blue + electric violet, warmed with coral & pink,
     grounded in deep indigo, gradient-forward. */
  --c-bg:        #f7f7fc;   /* Canvas — cool-warm white */
  --c-bg-2:      #eef0fa;   /* Wash */
  --c-indigo:    #15143c;   /* Midnight Indigo — dark sections / hero / footer */
  --c-indigo-2:  #0e0d2b;   /* Deeper indigo */
  --c-ink:       #1a1840;   /* Ink — headings & text (indigo-warm) */
  --c-accent:    #1e50e5;   /* Clinical Blue — primary action */
  --c-accent-d:  #143fc4;
  --c-violet:    #6a4bff;   /* Electric Violet — innovation */
  --c-coral:     #f47c6b;   /* Coral — warmth & emotion */
  --c-pink:      #ff4d8d;   /* Hot Pink — colourful pop / gradient end */
  --c-signal:    #6a4bff;   /* Signal (violet) — quantification / data (logo-aligned, no green) */
  --c-text:      #1a1840;
  --c-slate:     #595a7e;   /* Body text (violet-warm slate) */
  --c-surface:   #ffffff;
  --c-muted:     #646584;
  --c-card:      #ffffff;
  --c-card-2:    #f4f5fc;
  --c-border:    #e6e7f3;
  --c-border-2:  #d3d5e8;
  --c-glow:      rgba(106,75,255,0.32);
  --c-alert:     #f4604f;
  --c-shadow:    rgba(21,20,60,0.12);

  /* signature gradients */
  --grad-aurora: linear-gradient(100deg, #2e54e8 0%, #6a4bff 48%, #f47c6b 100%);
  --grad-cta:    linear-gradient(120deg, #1e50e5 0%, #6a4bff 100%);
  --grad-ember:  linear-gradient(100deg, #ff4d8d 0%, #f47c6b 55%, #f5b544 100%);
  --grad-violetpink: linear-gradient(110deg, #6a4bff 0%, #ff4d8d 100%);

  /* severity ramp (functional, product UI only) */
  --sev-low:  #6a4bff;
  --sev-mod:  #f5b544;
  --sev-high: #f4604f;

  /* ---- Type ---- */
  --font-sans: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
  --font-display: 'Newsreader', Georgia, 'Times New Roman', serif;

  /* ---- Layout ---- */
  --maxw: 1240px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius: 18px;
  --radius-sm: 12px;
  --header-h: 76px;
}

/* ---------- reset ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  background: var(--c-bg);
  color: var(--c-slate);
  line-height: 1.55;
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, svg, canvas { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; }
::selection { background: var(--c-violet); color: #fff; }

/* ---------- accessibility: visible focus ---------- */
.skip-link { position: fixed; top: 10px; left: 10px; z-index: 300; background: var(--c-ink); color: #fff; padding: 11px 18px; border-radius: 8px; font-size: 14px; font-weight: 500; transform: translateY(-160%); transition: transform .2s; box-shadow: 0 10px 30px -10px var(--c-shadow); }
.skip-link:focus { transform: none; outline: 3px solid var(--c-violet); outline-offset: 2px; }
.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, [tabindex]:focus-visible, .compare-handle:focus-visible {
  outline: 3px solid var(--c-violet); outline-offset: 3px; border-radius: 4px;
}
.hero a:focus-visible, .site-footer a:focus-visible, .unseen a:focus-visible { outline-color: #ffffff; }

/* ---------- accessibility: reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

/* ---------- ambient background ---------- */
.bg-field {
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(1000px 720px at 82% -8%, rgba(106,75,255,0.11), transparent 60%),
    radial-gradient(900px 640px at 4% 6%, rgba(244,124,107,0.08), transparent 55%),
    radial-gradient(820px 600px at 50% 112%, rgba(30,80,229,0.06), transparent 60%),
    var(--c-bg);
}
#bg-canvas { position: fixed; inset: 0; z-index: -1; opacity: 0.5; pointer-events: none; }
.grain { display: none; }

/* ---------- layout helpers ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: clamp(72px, 11vh, 140px) 0; position: relative; }
.eyebrow {
  font-family: var(--font-mono); font-size: 13px; font-weight: 500;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--c-violet);
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before {
  content: ""; width: 26px; height: 1px; background: var(--c-violet); opacity: 0.85;
}
.eyebrow.alt { color: var(--c-accent); }
.eyebrow.alt::before { background: var(--c-accent); }
.eyebrow.warm { color: #b94a37; }
.eyebrow.warm::before { background: #b94a37; }
.eyebrow.violet { color: var(--c-violet); }
.eyebrow.violet::before { background: var(--c-violet); }

h1, h2, h3 { font-weight: 600; line-height: 1.05; letter-spacing: -0.02em; color: var(--c-ink); }
h4, h5, h6 { color: var(--c-ink); }
.h-display { font-family: var(--font-display); font-size: clamp(46px, 6.7vw, 98px); font-weight: 600; line-height: 1.0; letter-spacing: -0.015em; }
.h-section { font-family: var(--font-display); font-size: clamp(34px, 4.4vw, 62px); font-weight: 600; line-height: 1.04; letter-spacing: -0.012em; }
.h-card    { font-size: clamp(22px, 2vw, 28px); letter-spacing: -0.02em; }
.lead { font-size: clamp(18px, 1.5vw, 22px); color: var(--c-slate); line-height: 1.6; font-weight: 400; }
.text-accent { color: var(--c-accent); }
.text-signal { color: var(--c-signal); }
.text-coral { color: var(--c-coral); }
.text-violet { color: var(--c-violet); }
.text-gradient { background: var(--grad-aurora); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; }
.text-gradient-ember { background: var(--grad-ember); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; }
.text-gradient-warm { background: linear-gradient(102deg, #6a4bff 0%, #f47c6b 52%, #ff4d8d 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; }
.text-gradient-cool { background: linear-gradient(100deg, #1e50e5 0%, #6a4bff 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; }
.mono { font-family: var(--font-mono); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 15px; font-weight: 500; line-height: 1;
  padding: 14px 24px; border-radius: 100px; border: 1px solid transparent;
  transition: transform .25s cubic-bezier(.2,.7,.3,1), background-color .25s, background-position .5s cubic-bezier(.2,.7,.3,1), border-color .25s, box-shadow .25s;
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary {
  background: var(--grad-cta); background-size: 170% 100%; background-position: 0% 50%; color: #fff;
  box-shadow: 0 10px 30px -10px var(--c-glow);
}
.btn-primary:hover { background-position: 100% 50%; transform: translateY(-2px); box-shadow: 0 18px 46px -12px var(--c-glow); }
.btn-coral { background: var(--c-coral); color: #2b1410; box-shadow: 0 10px 30px -10px rgba(244,124,107,0.5); }
.btn-coral:hover { background: #f06b58; transform: translateY(-2px); box-shadow: 0 18px 46px -12px rgba(244,124,107,0.55); }
.btn-ghost { background: #fff; color: var(--c-ink); border-color: var(--c-border-2); }
.btn-ghost:hover { background: var(--c-bg-2); border-color: var(--c-accent); transform: translateY(-2px); }
.btn-text { padding: 0; color: var(--c-accent); font-weight: 500; background: none; }
.btn-text .arr { transition: transform .25s; }
.btn-text:hover .arr { transform: translateX(4px); }
.btn-lg { padding: 17px 30px; font-size: 16px; }
.btn-full { width: 100%; justify-content: center; }

/* ---------- header ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100; height: var(--header-h);
  display: flex; align-items: center;
  background: rgba(247,247,252,0.82); backdrop-filter: blur(16px) saturate(140%);
  transition: background .3s, border-color .3s, box-shadow .3s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(247,247,252,0.92); backdrop-filter: blur(18px) saturate(150%);
  border-bottom: 1px solid var(--c-border); box-shadow: 0 8px 30px -20px var(--c-shadow);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.brand { display: flex; align-items: center; gap: 12px; }
.brand .logo-mark { height: 34px; width: auto; flex: none; }
.brand .logo-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand .logo-text b { font-weight: 600; font-size: 16px; letter-spacing: -0.01em; color: var(--c-ink); }
.brand .logo-text span { font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.28em; text-transform: uppercase; color: var(--c-muted); }
.nav { display: flex; align-items: center; gap: 6px; }
.nav a { font-size: 15px; color: var(--c-slate); padding: 9px 16px; border-radius: 100px; transition: color .2s, background .2s; }
.nav a:hover, .nav a.active { color: var(--c-ink); background: var(--c-bg-2); }
.header-cta { display: flex; align-items: center; gap: 14px; }
.menu-btn { display: none; width: 42px; height: 42px; border-radius: 10px; border: 1px solid var(--c-border-2); background: #fff; color: var(--c-ink); align-items: center; justify-content: center; }

/* ---------- mobile nav ---------- */
.mobile-nav {
  position: fixed; top: var(--header-h); left: 0; right: 0; z-index: 99;
  background: rgba(255,255,255,0.97); backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--c-border); box-shadow: 0 20px 40px -24px var(--c-shadow);
  display: flex; flex-direction: column; gap: 4px; padding: 16px var(--gutter) 26px;
  transform: translateY(-12px); opacity: 0; pointer-events: none; transition: opacity .25s, transform .25s;
}
.mobile-nav.open { transform: none; opacity: 1; pointer-events: auto; }
.mobile-nav a { padding: 13px 6px; font-size: 18px; color: var(--c-ink); border-bottom: 1px solid var(--c-border); }
.mobile-nav a.btn { border-bottom: none; margin-top: 14px; }
body.nav-open { overflow: hidden; }

/* ---------- floating quick action ---------- */
.quick-action {
  position: fixed; right: 22px; bottom: 26px; z-index: 90;
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--c-accent); color: #fff; border: none;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 14px 40px -10px var(--c-glow); transition: transform .25s, background .25s;
}
.quick-action:hover { transform: translateY(-3px) scale(1.04); background: var(--c-accent-d); }
.quick-action svg { width: 22px; height: 22px; }

/* ---------- cards ---------- */
.card {
  background: var(--c-card); border: 1px solid var(--c-border);
  border-radius: var(--radius);
  position: relative; overflow: hidden;
  box-shadow: 0 1px 2px rgba(21,20,60,0.04), 0 16px 38px -22px rgba(21,20,60,0.20);
  transition: box-shadow .35s cubic-bezier(.2,.7,.3,1), transform .35s cubic-bezier(.2,.7,.3,1), border-color .35s;
}
.card:hover { box-shadow: 0 2px 6px rgba(21,20,60,0.05), 0 30px 56px -30px rgba(106,75,255,0.36); }
.card-pad { padding: clamp(26px, 3vw, 40px); }
.glow-top::before {
  content: ""; position: absolute; inset: -1px -1px auto -1px; height: 2px;
  background: var(--grad-aurora); opacity: 0.85;
}

/* ---------- scroll progress ---------- */
.scroll-progress { position: fixed; top: 0; left: 0; height: 3px; width: 100%; transform: scaleX(0); transform-origin: 0 50%; background: var(--grad-aurora); z-index: 200; will-change: transform; }

/* ---------- footer (intentionally dark indigo — local light vars) ---------- */
.site-footer { background: var(--c-indigo); color: #eef0fb; padding: 80px 0 40px; position: relative; z-index: 1; overflow: hidden;
  --c-text: #eef0fb; --c-muted: #a6a7c4; --c-slate: #c3c4dc; --c-border: rgba(255,255,255,0.12); --c-border-2: rgba(255,255,255,0.22); }
.site-footer::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--grad-aurora); }
.site-footer::after { content: ""; position: absolute; top: -160px; right: -120px; width: 460px; height: 460px; border-radius: 50%; background: radial-gradient(circle, rgba(106,75,255,0.28), transparent 70%); pointer-events: none; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 48px; }
.footer-grid h4 { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--c-muted); margin-bottom: 18px; font-weight: 500; }
.footer-grid a { display: block; color: var(--c-muted); font-size: 15px; padding: 6px 0; transition: color .2s; }
.footer-grid a:hover { color: var(--c-text); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-top: 64px; padding-top: 28px; border-top: 1px solid var(--c-border); color: var(--c-muted); font-size: 13px; font-family: var(--font-mono); flex-wrap: wrap; }
.footer-blurb { color: var(--c-muted); font-size: 15px; line-height: 1.6; margin: 18px 0 24px; max-width: 320px; }
.social-row { display: flex; gap: 10px; }
.social-row a { width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--c-border); display: flex; align-items: center; justify-content: center; color: var(--c-muted); transition: all .2s; }
.social-row a:hover { color: var(--c-text); border-color: var(--c-border-2); background: rgba(255,255,255,0.06); }

/* ---------- hero console (intentionally dark — local vibrant dark vars) ---------- */
.console { color: #e9eef6;
  --c-text: #e9eef6; --c-muted: #93a2b8; --c-slate: #b8c4d6;
  --c-border: rgba(255,255,255,0.09); --c-border-2: rgba(255,255,255,0.16);
  --c-card: rgba(255,255,255,0.03); --c-accent: #5b8cff; --c-signal: #8a72ff; }

/* ---------- reveal animation ----------
   Opacity is ALWAYS 1 so content can never be hidden by a frozen
   animation/transition clock. Only a transform slide animates; if the
   clock never advances, elements simply rest at the start offset (visible). */
.reveal { opacity: 1; transform: translateY(20px); }
.reveal.in { animation: revealIn .7s cubic-bezier(.2,.7,.3,1) forwards; }
@keyframes revealIn { from { transform: translateY(20px); } to { transform: translateY(0); } }
.reveal-scale { opacity: 1; transform: translateY(26px) scale(0.98); }
.reveal-scale.in { animation: revealScale .8s cubic-bezier(.2,.7,.3,1) forwards; }
@keyframes revealScale { from { transform: translateY(26px) scale(0.98); } to { transform: translateY(0) scale(1); } }
.reveal-left { opacity: 1; transform: translateX(-26px); }
.reveal-left.in { animation: revealLeft .8s cubic-bezier(.2,.7,.3,1) forwards; }
@keyframes revealLeft { from { transform: translateX(-26px); } to { transform: translateX(0); } }
@media (prefers-reduced-motion: reduce) { .reveal, .reveal-scale, .reveal-left { transform: none; } .reveal.in, .reveal-scale.in, .reveal-left.in { animation: none; } }

/* ---------- back link ---------- */
.back-link { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.05em; color: var(--c-muted); transition: color .2s; }
.back-link:hover { color: var(--c-text); }
.back-link svg { width: 14px; height: 14px; }

/* ---------- chips / pills ---------- */
.chip { display: inline-flex; align-items: center; gap: 7px; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em; text-transform: uppercase; padding: 7px 13px; border-radius: 100px; border: 1px solid var(--c-border); color: var(--c-slate); background: #fff; transition: all .2s; }
.chip.active, .chip:hover { color: #fff; border-color: var(--c-accent); background: var(--c-accent); }

/* ---------- forms ---------- */
.field { display: flex; flex-direction: column; gap: 8px; }
.field label { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-muted); }
.field label .req { color: var(--c-alert); }
.field input, .field select, .field textarea {
  font-family: var(--font-sans); font-size: 15px; color: var(--c-ink);
  background: #fff; border: 1px solid var(--c-border); border-radius: 10px;
  padding: 13px 15px; transition: border-color .2s, background .2s, box-shadow .2s; width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--c-accent); box-shadow: 0 0 0 3px rgba(30,80,229,0.12); }
.field textarea { resize: vertical; min-height: 120px; }
.field input::placeholder, .field textarea::placeholder { color: #97a3b5; }

/* ---------- light surface (articles/forms) ---------- */
.surface-light { background: var(--c-surface); color: #10151d; border-radius: var(--radius); }

/* ---------- utility ---------- */
.grid { display: grid; }
.flex { display: flex; }
.stat-num { font-weight: 600; letter-spacing: -0.04em; line-height: 0.9; }

/* ---------- responsive ---------- */
@media (max-width: 940px) {
  .nav { display: none; }
  .menu-btn { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .header-cta .btn-primary { display: none; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .footer-grid { grid-template-columns: 1fr; }
  .quick-action { right: 16px; bottom: 18px; }
}

/* ============================================================
   Cookie consent banner + legal footer links
   ============================================================ */
.cookie-banner { position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 1000; display: flex; justify-content: center; transform: translateY(180%); transition: transform .45s cubic-bezier(.2,.7,.3,1); pointer-events: none; }
.cookie-banner.is-open { transform: translateY(0); }
.cookie-inner { pointer-events: auto; width: 100%; max-width: 760px; background: var(--c-card); border: 1px solid var(--c-border-2); border-radius: 16px; box-shadow: 0 24px 60px -20px rgba(21,20,60,0.4); padding: 20px 22px; display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.cookie-text { flex: 1; min-width: 240px; margin: 0; font-size: 13.5px; line-height: 1.55; color: var(--c-slate); }
.cookie-text a { color: var(--c-accent); }
.cookie-text strong { color: var(--c-text); font-weight: 600; }
.cookie-actions { display: flex; gap: 10px; flex: none; }
.cookie-actions .btn { font-size: 13.5px; padding: 10px 16px; }
@media (max-width: 560px) {
  .cookie-banner { left: 12px; right: 12px; bottom: 12px; }
  .cookie-inner { flex-direction: column; align-items: stretch; gap: 14px; }
  .cookie-actions .btn { flex: 1; }
}

.footer-legal { display: flex; flex-wrap: wrap; gap: 8px 22px; align-items: center; margin-top: 56px; padding-top: 26px; border-top: 1px solid var(--c-border); }
.footer-legal a, .footer-legal .cookie-settings { font-family: var(--font-mono); font-size: 12.5px; letter-spacing: 0.02em; color: var(--c-muted); background: none; border: 0; padding: 0; cursor: pointer; transition: color .2s; }
.footer-legal a:hover, .footer-legal .cookie-settings:hover { color: var(--c-text); }
.footer-legal + .footer-bottom { margin-top: 22px; padding-top: 0; border-top: none; }