/* ==========================================================================
   BioArmor — Marketing Site shared styles
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;500;600;700&family=Geist+Mono:wght@400;500&family=Instrument+Serif:ital@0;1&display=swap');

:root {
  /* Brand teal */
  --brand-50:  oklch(0.975 0.018 200);
  --brand-100: oklch(0.945 0.035 200);
  --brand-200: oklch(0.885 0.065 200);
  --brand-300: oklch(0.800 0.095 200);
  --brand-400: oklch(0.720 0.115 200);
  --brand-500: oklch(0.620 0.120 200);
  --brand-600: oklch(0.540 0.115 200);
  --brand-700: oklch(0.430 0.095 200);
  --brand-800: oklch(0.320 0.075 200);
  --brand-900: oklch(0.220 0.045 200);
  --brand-950: oklch(0.140 0.025 200);

  /* Graphite warm neutrals */
  --g-0:   oklch(1.000 0.000 0);
  --g-50:  oklch(0.985 0.002 85);
  --g-100: oklch(0.965 0.004 85);
  --g-200: oklch(0.925 0.006 85);
  --g-300: oklch(0.870 0.008 85);
  --g-400: oklch(0.720 0.010 85);
  --g-500: oklch(0.580 0.012 85);
  --g-600: oklch(0.460 0.012 85);
  --g-700: oklch(0.360 0.010 85);
  --g-800: oklch(0.260 0.008 85);
  --g-900: oklch(0.180 0.006 85);
  --g-950: oklch(0.120 0.004 85);

  /* Chrome */
  --chrome-300: oklch(0.870 0.005 230);
  --chrome-500: oklch(0.700 0.008 230);

  /* Semantic */
  --success: oklch(0.560 0.095 150);
  --warning: oklch(0.680 0.140 70);
  --danger:  oklch(0.565 0.180 28);

  /* Type */
  --font-sans: 'Geist', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --font-display: 'Instrument Serif', 'Times New Roman', serif;

  /* Layout */
  --max-content: 1200px;
  --max-prose: 720px;
  --nav-h: 68px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--g-900);
  background: var(--g-50);
  font-feature-settings: 'ss01', 'cv11';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ==========================================================================
   Type utilities
   ========================================================================== */
.eyebrow {
  font: 600 11px/1 var(--font-sans);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--g-500);
}
.eyebrow-light { color: oklch(0.870 0.020 200); }
.display { font-family: var(--font-display); font-weight: 400; line-height: 0.98; letter-spacing: -0.025em; }
.display-italic { font-family: var(--font-display); font-style: italic; font-weight: 400; line-height: 1.05; letter-spacing: -0.015em; }
.tabular { font-family: var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }

/* ==========================================================================
   Layout
   ========================================================================== */
.wrap { max-width: var(--max-content); margin: 0 auto; padding: 0 32px; }
.wrap-narrow { max-width: 880px; margin: 0 auto; padding: 0 32px; }
.section { padding: 96px 0; }
.section-tight { padding: 64px 0; }
.section-dark { background: var(--g-950); color: var(--g-100); }
.section-light { background: var(--g-50); }
.section-paper { background: var(--g-0); }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font: 500 14px/1 var(--font-sans);
  letter-spacing: -0.005em;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--brand-600);
  color: var(--g-50);
}
.btn-primary:hover { background: var(--brand-700); }
.btn-on-dark {
  background: var(--g-50);
  color: var(--g-950);
}
.btn-on-dark:hover { background: var(--g-200); }
.btn-ghost {
  color: var(--g-700);
  border: 1px solid var(--g-300);
  background: transparent;
}
.btn-ghost:hover { background: var(--g-100); border-color: var(--g-400); }
.btn-ghost-on-dark {
  color: var(--g-100);
  border: 1px solid oklch(1 0 0 / 0.2);
}
.btn-ghost-on-dark:hover { background: oklch(1 0 0 / 0.05); border-color: oklch(1 0 0 / 0.4); }
.btn-lg { padding: 16px 28px; font-size: 15px; }
.btn .arrow { transition: transform .15s ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* ==========================================================================
   Nav
   ========================================================================== */
.nav {
  position: sticky; top: 0; z-index: 50;
  height: var(--nav-h);
  background: oklch(0.985 0.002 85 / 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--g-200);
}
.nav-inner {
  height: 100%;
  display: flex; align-items: center; gap: 40px;
  max-width: var(--max-content);
  margin: 0 auto; padding: 0 32px;
}
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  flex-shrink: 0;
}
.nav-brand .shield {
  width: 26px; height: 32px;
}
.nav-brand .word {
  font: 600 15px/1 var(--font-sans);
  letter-spacing: -0.01em;
}
.nav-brand .word .pre { color: var(--brand-700); }
.nav-brand .word .post { color: var(--g-700); }
.nav-links {
  display: flex; gap: 28px; align-items: center;
  flex: 1;
}
.nav-link {
  font: 500 14px/1 var(--font-sans);
  color: var(--g-700);
  transition: color .15s ease;
}
.nav-link:hover { color: var(--g-950); }
.nav-cta {
  display: flex; gap: 12px; align-items: center;
  margin-left: auto;
}

/* Dark variant */
.nav-dark {
  background: oklch(0.120 0.004 85 / 0.85);
  border-bottom: 1px solid oklch(1 0 0 / 0.08);
}
.nav-dark .nav-brand .word .pre { color: var(--brand-300); }
.nav-dark .nav-brand .word .post { color: var(--g-200); }
.nav-dark .nav-link { color: var(--g-300); }
.nav-dark .nav-link:hover { color: var(--g-50); }

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background: var(--g-950);
  color: var(--g-300);
  padding: 80px 0 40px;
  border-top: 1px solid oklch(1 0 0 / 0.08);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 56px;
}
.footer h4 {
  font: 600 11px/1 var(--font-sans);
  letter-spacing: 0.18em; text-transform: uppercase;
  color: oklch(0.870 0.020 200);
  margin-bottom: 18px;
}
.footer ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer a { color: var(--g-300); font: 400 14px/1.4 var(--font-sans); transition: color .15s ease; }
.footer a:hover { color: var(--g-50); }
.footer-brand p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 22px;
  line-height: 1.25;
  color: var(--g-100);
  max-width: 36ch;
  margin-top: 14px;
}
.footer-disc {
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid oklch(1 0 0 / 0.08);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  font: 400 12px/1.5 var(--font-sans);
  color: var(--g-500);
}
.footer-disc p { max-width: 60ch; }

/* ==========================================================================
   Cards & primitives reused everywhere
   ========================================================================== */
.card {
  background: var(--g-0);
  border: 1px solid var(--g-200);
  border-radius: 14px;
  padding: 28px;
}
.card-dark {
  background: var(--g-900);
  border: 1px solid oklch(1 0 0 / 0.08);
  color: var(--g-100);
}
.card-feature {
  background: var(--g-0);
  border: 1px solid var(--g-200);
  border-radius: 14px;
  padding: 32px;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.card-feature:hover {
  border-color: var(--brand-300);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px -16px oklch(0.540 0.115 200 / 0.25);
}

/* KPI tile */
.kpi {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.kpi .v {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 56px;
  line-height: 1;
  letter-spacing: -0.035em;
  font-variant-numeric: tabular-nums;
  color: var(--g-950);
}
.kpi .v .unit {
  font-size: 0.45em;
  font-weight: 400;
  color: var(--g-500);
  margin-left: 4px;
  letter-spacing: -0.01em;
}
.kpi .l {
  font: 600 11px/1 var(--font-sans);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--g-500);
}
.kpi-on-dark .v { color: var(--g-50); }
.kpi-on-dark .v .unit { color: var(--g-400); }
.kpi-on-dark .l { color: oklch(0.870 0.020 200); }

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* Section header pattern */
.section-head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 720px;
  margin-bottom: 56px;
}
.section-head h2 {
  font: 600 40px/1.05 var(--font-sans);
  letter-spacing: -0.025em;
  color: var(--g-950);
}
.section-head h2 em {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
}
.section-head .lede {
  font-size: 17px;
  color: var(--g-600);
  max-width: 56ch;
  line-height: 1.55;
}
.section-dark .section-head h2 { color: var(--g-50); }
.section-dark .section-head .lede { color: var(--g-300); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .section { padding: 64px 0; }
  .section-head h2 { font-size: 32px; }
  .kpi .v { font-size: 44px; }
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
  .wrap { padding: 0 20px; }
  .nav-inner { padding: 0 20px; gap: 16px; }
}


/* ========== CTA final (shared across pages) ========== */
.cta-final { background: var(--g-950); color: var(--g-50); padding: 96px 0; position: relative; overflow: hidden; }
.cta-final::before { content: ""; position: absolute; inset: 0; background: radial-gradient(40% 60% at 80% 50%, oklch(0.220 0.045 200 / 0.6), transparent 70%); }
.cta-final .inner { position: relative; display: grid; grid-template-columns: 1.2fr 1fr; gap: 56px; align-items: center; max-width: var(--max-content); margin: 0 auto; padding: 0 32px; }
.cta-final h2 { font-family: var(--font-display); font-style: italic; font-weight: 400; font-size: clamp(40px, 5vw, 64px); line-height: 1; letter-spacing: -0.02em; color: var(--g-50); }
.cta-final h2 em { color: var(--brand-300); }
.cta-final p { margin-top: 20px; font-size: 17px; color: var(--g-300); max-width: 50ch; line-height: 1.55; }
.cta-final .form-card { background: oklch(1 0 0 / 0.03); border: 1px solid oklch(1 0 0 / 0.08); border-radius: 18px; padding: 32px; backdrop-filter: blur(8px); }
.cta-final .form-card label { display: block; font: 600 11px/1 var(--font-sans); letter-spacing: 0.16em; text-transform: uppercase; color: oklch(0.870 0.020 200); margin-bottom: 8px; }
.cta-final .form-card label + label { margin-top: 0; }
.cta-final .form-card input, .cta-final .form-card select, .cta-final .form-card textarea { width: 100%; padding: 12px 14px; background: oklch(1 0 0 / 0.05); border: 1px solid oklch(1 0 0 / 0.12); border-radius: 10px; color: var(--g-50); font: 400 15px/1.4 var(--font-sans); margin-bottom: 18px; box-sizing: border-box; }
.cta-final .form-card input:focus, .cta-final .form-card select:focus, .cta-final .form-card textarea:focus { outline: none; border-color: var(--brand-400); background: oklch(1 0 0 / 0.08); }
.cta-final .form-card input::placeholder, .cta-final .form-card textarea::placeholder { color: var(--g-500); }
.cta-final .form-card .btn { width: 100%; justify-content: center; }
@media (max-width: 900px) { .cta-final .inner { grid-template-columns: 1fr; gap: 32px; } }