:root {
  --navy: #0f172a;
  --blue: #2563eb;
  --teal: #14b8a6;
  --gray: #64748b;
  --light: #f8fafc;
  --white: #ffffff;
  --border: #e2e8f0;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, Arial, sans-serif; color: var(--navy); background: var(--white); line-height: 1.6; }
a { color: inherit; text-decoration: none; }
.container { width: min(1120px, 92%); margin: auto; }
.nav { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--border); backdrop-filter: blur(10px); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: 1px; }
.logo { width: 42px; height: 42px; border-radius: 12px; background: linear-gradient(135deg, var(--blue), var(--teal)); color: white; display: grid; place-items: center; font-weight: 900; }
.links { display: flex; gap: 22px; align-items: center; font-size: 14px; }
.btn { display: inline-block; padding: 12px 18px; border-radius: 999px; background: var(--blue); color: white; font-weight: 700; box-shadow: 0 12px 30px rgba(37,99,235,.22); }
.btn.secondary { background: white; color: var(--navy); border: 1px solid var(--border); box-shadow: none; }
.hero { padding: 90px 0 70px; background: radial-gradient(circle at top right, rgba(37,99,235,.18), transparent 35%), linear-gradient(180deg, #f8fbff, white); }
.hero-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: center; }
.eyebrow { color: var(--blue); font-weight: 800; text-transform: uppercase; font-size: 13px; letter-spacing: .12em; }
h1 { font-size: clamp(42px, 6vw, 68px); line-height: 1.02; margin: 14px 0 20px; }
h2 { font-size: clamp(30px, 4vw, 44px); line-height: 1.12; margin: 0 0 14px; }
h3 { margin: 0 0 8px; font-size: 20px; }
p { color: var(--gray); margin: 0 0 18px; }
.hero-card { background: var(--navy); color: white; border-radius: 28px; padding: 30px; box-shadow: 0 24px 60px rgba(15,23,42,.25); }
.hero-card p { color: #cbd5e1; }
.node-v { height: 260px; position: relative; margin: 15px auto; max-width: 260px; }
.node { position: absolute; width: 18px; height: 18px; background: var(--teal); border: 3px solid white; border-radius: 50%; box-shadow: 0 0 0 8px rgba(20,184,166,.15); }
.line { position: absolute; height: 3px; background: linear-gradient(90deg, var(--blue), var(--teal)); transform-origin: left center; }
.n1 { left: 30px; top: 20px; } .n2 { left: 78px; top: 98px; } .n3 { left: 128px; top: 180px; } .n4 { left: 178px; top: 98px; } .n5 { left: 228px; top: 20px; }
.l1 { left: 43px; top: 39px; width: 92px; transform: rotate(58deg); } .l2 { left: 90px; top: 116px; width: 92px; transform: rotate(58deg); } .l3 { left: 141px; top: 194px; width: 92px; transform: rotate(-58deg); } .l4 { left: 191px; top: 116px; width: 92px; transform: rotate(-58deg); }
.section { padding: 76px 0; }
.section.alt { background: var(--light); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card { background: white; border: 1px solid var(--border); border-radius: 22px; padding: 24px; box-shadow: 0 10px 30px rgba(15,23,42,.04); }
.card .icon { width: 42px; height: 42px; border-radius: 12px; background: rgba(37,99,235,.1); color: var(--blue); display: grid; place-items: center; font-weight: 900; margin-bottom: 16px; }
.pill-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.pill { padding: 8px 12px; border-radius: 999px; background: #eef6ff; color: #1d4ed8; font-weight: 700; font-size: 13px; }
.cta { background: linear-gradient(135deg, var(--navy), #1e3a8a); color: white; border-radius: 30px; padding: 42px; display: flex; justify-content: space-between; gap: 24px; align-items: center; }
.cta p { color: #cbd5e1; }
.footer { padding: 34px 0; background: var(--navy); color: white; }
.footer p { color: #94a3b8; }
.form { display: grid; gap: 14px; }
input, textarea, select { width: 100%; padding: 14px 16px; border: 1px solid var(--border); border-radius: 12px; font: inherit; }
textarea { min-height: 130px; }
@media (max-width: 850px) { .hero-grid, .grid { grid-template-columns: 1fr; } .links { display: none; } .cta { display: block; } }