:root {
  --white: #FFFFFF;
  --teal: #0D9488;
  --teal-dark: #0F766E;
  --teal-light: #CCFBF1;
  --slate: #0F172A;
  --slate-mid: #334155;
  --slate-light: #64748B;
  --border: #E2E8F0;
  --grid: #F1F5F9;
  --amber: #F59E0B;
  --font-head: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --max-w: 1200px;
  --radius: 4px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--slate-mid);
  background: var(--white);
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--teal); text-decoration: none; transition: color .2s; }
a:hover { color: var(--teal-dark); }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

.mono-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--slate);
  line-height: 1.2;
  font-weight: 600;
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); margin-bottom: 16px; }
h3 { font-size: 1.25rem; margin-bottom: 12px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-mark {
  width: 36px;
  height: 36px;
  background: var(--teal);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
}

.logo-mark svg { width: 20px; height: 20px; }

.logo-text {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--slate);
}

.logo-text span { color: var(--teal); }

.main-nav { display: flex; align-items: center; gap: 28px; }

.main-nav a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--slate-mid);
  text-decoration: none;
}

.main-nav a:hover, .main-nav a.active { color: var(--teal); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  padding: 8px 12px;
  cursor: pointer;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 12px 24px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all .2s;
}

.btn-primary {
  background: var(--teal);
  color: var(--white);
  border-color: var(--teal);
}

.btn-primary:hover { background: var(--teal-dark); color: var(--white); }

.btn-outline {
  background: transparent;
  color: var(--teal);
  border-color: var(--teal);
}

.btn-outline:hover { background: var(--teal-light); color: var(--teal-dark); }

.btn-ghost {
  background: var(--grid);
  color: var(--slate-mid);
  border-color: var(--border);
}

/* Hero */
.hero {
  padding: 80px 0 64px;
  background: var(--white);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.4;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  position: relative;
}

.hero-content p.lead {
  font-size: 1.125rem;
  margin: 20px 0 32px;
  max-width: 520px;
}

.hero-slogan {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--teal);
  margin-bottom: 16px;
}

.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-visual {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.hero-visual img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }

.hero-chart-overlay {
  position: absolute;
  bottom: 16px;
  right: 16px;
  background: rgba(255,255,255,0.95);
  border: 1px solid var(--border);
  padding: 12px;
  border-radius: var(--radius);
  width: 180px;
}

/* Sections */
section { padding: 72px 0; }

section.alt-bg { background: var(--grid); }

.section-header { margin-bottom: 48px; max-width: 640px; }

.section-header p { margin-top: 12px; }

/* Lab Charter */
.charter-callout {
  background: var(--slate);
  color: var(--white);
  padding: 48px;
  border-radius: var(--radius);
  border-left: 4px solid var(--teal);
}

.charter-callout h2 { color: var(--white); margin-bottom: 16px; }

.charter-callout p { color: #CBD5E1; margin-bottom: 12px; }

.charter-callout .mono-label { color: var(--teal-light); margin-bottom: 12px; display: block; }

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.stat-cell {
  background: var(--white);
  padding: 32px 24px;
  text-align: center;
}

.stat-value {
  font-family: var(--font-head);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--teal);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--slate-light);
}

/* Cards grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  background: var(--white);
  transition: border-color .2s, box-shadow .2s;
}

.card:hover { border-color: var(--teal); box-shadow: 0 4px 24px rgba(13,148,136,0.08); }

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--teal-light);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
}

.card-icon svg { width: 24px; height: 24px; stroke: var(--teal); }

.card .step-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--teal);
  margin-bottom: 8px;
}

.card h3 { margin-bottom: 10px; }

/* Two column layout */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.two-col.reverse { direction: rtl; }
.two-col.reverse > * { direction: ltr; }

/* Dashboard panel */
.dashboard-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
}

.dashboard-header {
  background: var(--grid);
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}

.dashboard-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
}

.dashboard-dot.active { background: var(--teal); }

.dashboard-body { padding: 24px; }

/* Method steps */
.method-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  counter-reset: step;
}

.method-step {
  border: 1px solid var(--border);
  padding: 24px 16px;
  border-radius: var(--radius);
  position: relative;
  background: var(--white);
}

.method-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--teal);
  display: block;
  margin-bottom: 12px;
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
}

.service-card img { aspect-ratio: 16/10; object-fit: cover; width: 100%; }

.service-card-body { padding: 24px; }

.service-code {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--teal);
  margin-bottom: 8px;
}

/* FAQ */
.faq-list { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }

.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:last-child { border-bottom: none; }

.faq-question {
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  background: var(--white);
  border: none;
  cursor: pointer;
  font-family: var(--font-head);
  font-size: 1rem;
  color: var(--slate);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question:hover { background: var(--grid); }

.faq-answer {
  padding: 0 24px 20px;
  display: none;
}

.faq-item.open .faq-answer { display: block; }

.faq-item.open .faq-question { color: var(--teal); }

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial {
  border: 1px solid var(--border);
  padding: 28px;
  border-radius: var(--radius);
  background: var(--white);
}

.testimonial blockquote {
  font-style: italic;
  margin-bottom: 16px;
  color: var(--slate-mid);
}

.testimonial cite {
  font-family: var(--font-mono);
  font-size: 11px;
  font-style: normal;
  color: var(--slate-light);
}

/* CTA */
.cta-band {
  background: var(--teal);
  color: var(--white);
  padding: 64px 0;
  text-align: center;
}

.cta-band h2 { color: var(--white); margin-bottom: 12px; }

.cta-band p { color: var(--teal-light); margin-bottom: 28px; max-width: 560px; margin-left: auto; margin-right: auto; }

.cta-band .btn-primary { background: var(--white); color: var(--teal); border-color: var(--white); }
.cta-band .btn-primary:hover { background: var(--teal-light); }

/* Page hero */
.page-hero {
  padding: 56px 0 48px;
  background: var(--grid);
  border-bottom: 1px solid var(--border);
}

.page-hero .mono-label { margin-bottom: 12px; display: block; }

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 11px;
  margin-bottom: 16px;
  color: var(--slate-light);
}

.breadcrumb a { color: var(--slate-light); }
.breadcrumb a:hover { color: var(--teal); }

/* Content blocks */
.content-block { max-width: 760px; }
.content-block h2 { margin-top: 40px; margin-bottom: 16px; }
.content-block h2:first-child { margin-top: 0; }
.content-block p { margin-bottom: 16px; }
.content-block ul, .content-block ol { margin: 0 0 16px 24px; }
.content-block li { margin-bottom: 8px; }

.feature-list {
  list-style: none;
  margin: 24px 0;
  padding: 0;
}

.feature-list li {
  padding: 12px 0 12px 28px;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.feature-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--teal);
  font-family: var(--font-mono);
}

/* Contact form */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group { margin-bottom: 20px; }
.form-group.full { grid-column: 1 / -1; }

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--slate);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 15px;
  background: var(--white);
  transition: border-color .2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--teal);
}

.form-group textarea { min-height: 140px; resize: vertical; }

.form-note {
  font-size: 13px;
  color: var(--slate-light);
  margin-top: 12px;
}

.alert {
  padding: 16px 20px;
  border-radius: var(--radius);
  margin-bottom: 24px;
  font-size: 14px;
}

.alert-success { background: var(--teal-light); color: var(--teal-dark); border: 1px solid var(--teal); }
.alert-error { background: #FEF2F2; color: #991B1B; border: 1px solid #FECACA; }

.contact-info {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  background: var(--grid);
}

.contact-info dl { margin: 0; }
.contact-info dt {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  color: var(--teal);
  margin-top: 16px;
}
.contact-info dt:first-child { margin-top: 0; }
.contact-info dd { margin: 4px 0 0; color: var(--slate); }

/* Footer */
.site-footer {
  background: var(--slate);
  color: #94A3B8;
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand p { margin-top: 16px; font-size: 14px; line-height: 1.6; }

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--white);
  margin-bottom: 16px;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: #94A3B8; font-size: 14px; text-decoration: none; }
.footer-col a:hover { color: var(--teal-light); }

.footer-bottom {
  border-top: 1px solid #1E293B;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
}

.footer-bottom a { color: #64748B; }

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--slate);
  color: var(--white);
  padding: 20px 24px;
  z-index: 1000;
  display: none;
  border-top: 2px solid var(--teal);
}

.cookie-banner.visible { display: block; }

.cookie-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cookie-text { flex: 1; min-width: 280px; font-size: 14px; line-height: 1.5; }
.cookie-text a { color: var(--teal-light); }

.cookie-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.cookie-actions .btn { padding: 10px 16px; font-size: 11px; }

.cookie-settings {
  display: none;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid #334155;
  width: 100%;
}

.cookie-settings.visible { display: block; }

.cookie-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 14px;
}

.cookie-toggle input { accent-color: var(--teal); }

/* Chart utilities */
.chart-bars { display: flex; align-items: flex-end; gap: 8px; height: 80px; }
.chart-bar { flex: 1; background: var(--teal); border-radius: 2px 2px 0 0; opacity: 0.85; }
.chart-bar.alt { background: var(--slate-light); opacity: 0.5; }

.chart-line { width: 100%; height: auto; }

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.why-item {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.why-item .mono-label { margin-bottom: 12px; display: block; }

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid, .two-col { grid-template-columns: 1fr; }
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .method-steps { grid-template-columns: repeat(3, 1fr); }
  .services-grid, .testimonials-grid, .why-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    gap: 16px;
  }
  .main-nav.open { display: flex; }
  .site-header { position: relative; }
  .cards-grid, .stats-grid, .method-steps { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  section { padding: 48px 0; }
  .hero { padding: 48px 0; }
}