:root {
  --navy: #16222F;
  --navy-2: #1E2D3D;
  --green: #1B7A4A;
  --green-bright: #3FB37A;
  --green-wash: #E8F3EC;
  --ink: #16222F;
  --body: #3D4A57;
  --muted: #6B7785;
  --line: #D8DCE2;
  --bg: #FFFFFF;
  --bg-alt: #F5F7F9;
  --max: 1120px;
  --sans: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--body);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; }
a { color: var(--green); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* NAV */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,0.94);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-name { font-weight: 600; font-size: 16px; letter-spacing: -0.01em; white-space: nowrap; }
.brand-name span { color: var(--green); }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; font-size: 14px; }
.nav-links a { color: var(--body); text-decoration: none; }
.nav-links a:hover { color: var(--ink); }

.btn {
  display: inline-block; text-decoration: none;
  background: var(--green); color: #fff;
  padding: 11px 22px; border-radius: 6px;
  font-size: 15px; font-weight: 500;
  transition: background .15s;
}
.btn:hover { background: #156A3F; }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-ghost:hover { background: var(--bg-alt); }
.btn-sm { padding: 8px 16px; font-size: 14px; }
.on-dark .btn-ghost { color: #fff; border-color: rgba(255,255,255,0.3); }
.on-dark .btn-ghost:hover { background: rgba(255,255,255,0.08); }

/* HERO */
.hero { background: var(--navy); color: #C9D2DC; position: relative; overflow: hidden; }
.hero .wrap { padding-top: 96px; padding-bottom: 104px; position: relative; }
.eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--green-bright); margin-bottom: 20px;
}
.hero h1 {
  color: #fff; font-weight: 600;
  font-size: clamp(34px, 5.2vw, 58px); line-height: 1.08; letter-spacing: -0.025em;
  max-width: 760px; margin-bottom: 24px;
}
.hero h1 em { font-style: normal; color: var(--green-bright); }
.hero .lead { font-size: 18px; max-width: 600px; margin-bottom: 36px; }
.ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-trace { position: absolute; right: -40px; bottom: 0; width: 520px; max-width: 60%; opacity: 0.5; pointer-events: none; }

/* SECTIONS */
section { padding: 88px 0; }
.alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.label { font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--green); margin-bottom: 12px; }
h2 { color: var(--ink); font-weight: 600; font-size: clamp(26px, 3.4vw, 38px); line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 16px; max-width: 720px; }
.sub { font-size: 17px; max-width: 640px; margin-bottom: 48px; }
h3 { color: var(--ink); font-weight: 600; font-size: 18px; margin-bottom: 8px; letter-spacing: -0.01em; }

.grid { display: grid; gap: 24px; }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.card { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 28px; }
.card p { font-size: 15px; }
.card .num { font-family: var(--mono); font-size: 13px; color: var(--green); margin-bottom: 14px; display: block; }

/* LIFECYCLE STRIP */
.lifecycle { display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: #fff; }
.phase { padding: 22px 20px; border-right: 1px solid var(--line); }
.phase:last-child { border-right: none; }
.phase .k { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.phase .t { color: var(--ink); font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.phase p { font-size: 13.5px; }

/* PRODUCT FEATURE */
.feature { background: var(--navy); color: #C9D2DC; border-radius: 14px; padding: 56px; display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.feature h2 { color: #fff; }
.feature .sub { color: #C9D2DC; margin-bottom: 28px; }
.feature ul { list-style: none; display: grid; gap: 12px; }
.feature li { padding-left: 26px; position: relative; font-size: 15px; }
.feature li::before { content: ""; position: absolute; left: 0; top: 9px; width: 12px; height: 2px; background: var(--green-bright); }
.feature li strong { color: #fff; font-weight: 500; }
.trace-panel { background: var(--navy-2); border: 1px solid rgba(255,255,255,0.08); border-radius: 10px; padding: 24px; font-family: var(--mono); font-size: 13px; }
.trace-row { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px dashed rgba(255,255,255,0.1); }
.trace-row:last-child { border-bottom: none; }
.trace-row .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green-bright); flex-shrink: 0; }
.trace-row .dot.warn { background: #E0A43A; }
.trace-row .name { color: #fff; flex: 1; }
.trace-row .st { color: #8A96A3; font-size: 12px; }

/* ABOUT */
.about { display: grid; grid-template-columns: 1.2fr 1fr; gap: 64px; align-items: start; }
.about p { margin-bottom: 16px; font-size: 16.5px; }
.facts { display: grid; gap: 0; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.fact { padding: 18px 22px; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; font-size: 14.5px; background: #fff; }
.fact:last-child { border-bottom: none; }
.fact .k { color: var(--muted); }
.fact .v { color: var(--ink); font-weight: 500; text-align: right; }

/* CTA */
.cta { background: var(--navy); text-align: center; color: #C9D2DC; }
.cta h2 { color: #fff; margin-left: auto; margin-right: auto; }
.cta .sub { margin-left: auto; margin-right: auto; margin-bottom: 32px; }
.cta .ctas { justify-content: center; }

/* FOOTER */
footer { background: #101A24; color: #8A96A3; font-size: 13.5px; padding: 40px 0; }
footer .wrap { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; align-items: center; }
footer a { color: #C9D2DC; text-decoration: none; }
footer a:hover { color: #fff; }
footer .brand { color: #fff; }
.foot-links { display: flex; gap: 24px; list-style: none; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .g3, .g4 { grid-template-columns: 1fr 1fr; }
  .lifecycle { grid-template-columns: 1fr 1fr; }
  .phase { border-bottom: 1px solid var(--line); }
  .feature { grid-template-columns: 1fr; padding: 36px 28px; }
  .about { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 640px) {
  section { padding: 64px 0; }
  .nav-links li:not(:last-child) { display: none; }
  .g3, .g2, .g4, .lifecycle { grid-template-columns: 1fr; }
  .phase { border-right: none; }
  .hero .wrap { padding-top: 64px; padding-bottom: 72px; }
  .hero-trace { display: none; }
  .brand-name { font-size: 15px; }
}