:root {
  --primary: #0D1F2D;
  --secondary: #1A6B55;
  --accent: #00E5A0;
  --background: #F4F6F8;
  --text: #0D1F2D;
  --font-heading: 'Inter', Georgia, 'Times New Roman', serif;
  --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --border: rgba(15, 23, 42, 0.12);
  --shadow-soft: 0 10px 24px rgba(15, 23, 42, 0.06);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font-body); color: var(--text); background: var(--background); line-height: 1.6; }
a { color: inherit; }
img { display: block; max-width: 100%; }
.shell { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; }
.skip-link { position: absolute; left: 1rem; top: -3rem; background: var(--primary); color: #fff; padding: 0.75rem 1rem; z-index: 20; }
.skip-link:focus { top: 1rem; }
.site-header { position: sticky; top: 0; background: rgba(255,255,255,0.96); border-bottom: 1px solid var(--border); }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 4.5rem; }
.brand-mark { display: inline-flex; align-items: center; gap: 0.75rem; font-family: var(--font-heading); font-weight: 700; text-decoration: none; }
.brand-mark img { width: 2.25rem; height: 2.25rem; }
.site-nav { display: flex; gap: 1.25rem; }
.site-nav a { text-decoration: none; font-weight: 600; }
.menu-toggle { display: none; }
.hero-panel { padding: 5rem 0 4rem; background: linear-gradient(135deg, color-mix(in srgb, var(--primary) 92%, white 8%), var(--secondary)); color: #fff; }
.hero-grid { display: grid; grid-template-columns: 1.4fr 0.9fr; gap: 2rem; align-items: center; }
.hero-proof, .card, .detail-card, .contact-form { background: rgba(255,255,255,0.96); color: var(--text); border-radius: 1.25rem; border: 1px solid var(--border); box-shadow: var(--shadow-soft); }
.hero-proof { padding: 1.5rem; }
.eyebrow { text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.76rem; font-weight: 700; opacity: 0.85; }
h1, h2, h3 { font-family: var(--font-heading); line-height: 1.1; margin: 0 0 1rem; }
h1 { font-size: clamp(2.4rem, 6vw, 4.8rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
.lede { font-size: 1.15rem; max-width: 42rem; }
.cta-row { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2rem; }
.button { display: inline-flex; align-items: center; justify-content: center; padding: 0.95rem 1.3rem; border-radius: 999px; text-decoration: none; font-weight: 700; border: 1px solid transparent; }
.button.primary { background: var(--accent); color: #fff; }
.button.secondary { background: transparent; color: #fff; border-color: rgba(255,255,255,0.45); }
.section-block { padding: 4.5rem 0; }
.section-block.muted { background: rgba(255,255,255,0.45); }
.section-heading { margin-bottom: 1.5rem; }
.card-grid, .blog-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem; }
.card, .blog-card { padding: 1.5rem; }
.detail-stack { display: grid; gap: 1rem; }
.detail-card { padding: 1.5rem; }
.detail-note { color: color-mix(in srgb, var(--text) 75%, white 25%); }
.page-hero { padding: 4rem 0 1rem; }
.prose-block { max-width: 52rem; }
.contact-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 1.5rem; align-items: start; }
.contact-form { padding: 1.5rem; }
.contact-form label { display: block; font-weight: 600; margin-bottom: 1rem; }
.contact-form input, .contact-form textarea { width: 100%; margin-top: 0.4rem; padding: 0.85rem 1rem; border-radius: 0.85rem; border: 1px solid var(--border); font: inherit; background: #fff; }
.site-footer { padding: 2rem 0 3rem; border-top: 1px solid var(--border); }
.footer-grid { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }

@media (max-width: 900px) {
  .hero-grid, .card-grid, .blog-grid, .contact-layout { grid-template-columns: 1fr; }
  .menu-toggle { display: inline-flex; border: 1px solid var(--border); background: #fff; border-radius: 999px; padding: 0.7rem 1rem; }
  .site-nav { display: none; position: absolute; top: 4.5rem; right: 1rem; flex-direction: column; padding: 1rem; background: #fff; border: 1px solid var(--border); border-radius: 1rem; }
  .site-nav.is-open { display: flex; }
}