:root {
  --color-bg: #0a0a0a;
  --color-surface: #141414;
  --color-border: #262626;
  --color-text: #fafafa;
  --color-text-muted: #a1a1aa;
  --color-accent: #3b82f6;
  --color-accent-hover: #2563eb;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Fira Mono", Menlo, Monaco, monospace;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.header {
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.logo span {
  color: var(--color-text-muted);
  font-weight: 400;
}

.nav {
  display: flex;
  gap: 32px;
}

.nav a {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  transition: color 0.2s;
}

.nav a:hover {
  color: var(--color-text);
}

.hero {
  padding: 120px 0;
  text-align: center;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  line-height: 1.1;
}

.hero p {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 48px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--color-text);
  color: var(--color-bg);
}

.btn-primary:hover {
  background-color: #e4e4e7;
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-surface);
  border-color: var(--color-text-muted);
}

.products {
  padding: 80px 0;
}

.products h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 48px;
  text-align: center;
  letter-spacing: -0.02em;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.product-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 32px;
  transition: all 0.2s;
}

.product-card:hover {
  border-color: var(--color-text-muted);
  transform: translateY(-2px);
}

.product-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.product-card p {
  font-size: 0.875rem;
  color: #d4d4d8;
  margin-bottom: 16px;
}

.product-card .tag {
  display: inline-block;
  font-size: 0.75rem;
  color: #93c5fd;
  background-color: rgba(59, 130, 246, 0.15);
  padding: 4px 8px;
  border-radius: 4px;
}

.lab-section {
  padding: 80px 0;
  background-color: var(--color-surface);
  text-align: center;
}

.lab-section h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.lab-lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin-bottom: 48px;
}

.lab-benefits {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
  text-align: left;
}

.lab-benefit {
  padding: 24px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
}

.lab-benefit h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.lab-benefit p {
  font-size: 0.875rem;
  color: #d4d4d8;
}

.footer {
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

@media (max-width: 768px) {
  .hero {
    padding: 80px 0;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .nav {
    display: none;
  }
}