:root {
  --bg: #f5f1e8;
  --ink: #172626;
  --muted: #60706e;
  --deep: #102a2a;
  --accent: #a76f3f;
  --accent-2: #557c75;
  --card: rgba(255, 252, 244, 0.82);
  --line: rgba(23, 38, 38, 0.16);
  --shadow: 0 24px 70px rgba(24, 42, 38, 0.13);
  --radius: 28px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(167,111,63,.20), transparent 32rem),
    radial-gradient(circle at 85% 8%, rgba(85,124,117,.20), transparent 34rem),
    var(--bg);
  line-height: 1.6;
}

a { color: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(245, 241, 232, 0.84);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

.nav {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 760;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--deep);
  color: #fff8ed;
  font-size: 0.78rem;
  letter-spacing: .05em;
}

.nav-links {
  display: flex;
  gap: 22px;
  align-items: center;
  color: var(--muted);
  font-size: .96rem;
}

.nav-links a { text-decoration: none; }
.nav-links a:hover { color: var(--ink); }
.nav-toggle { display: none; }

.section-pad {
  max-width: 1180px;
  margin: 0 auto;
  padding: 92px 22px;
}

.hero {
  min-height: 78vh;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, .96fr);
  gap: 56px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .78rem;
}

h1, h2, h3 { line-height: 1.05; letter-spacing: -0.045em; }
h1 { font-size: clamp(3.1rem, 7vw, 6.9rem); margin: 0 0 24px; }
h2 { font-size: clamp(2.05rem, 4vw, 4rem); margin: 0 0 22px; }
h3 { font-size: 1.45rem; margin: 0 0 14px; }
p { margin: 0 0 18px; }
.lead { font-size: clamp(1.12rem, 2vw, 1.35rem); color: var(--muted); max-width: 740px; }

.hero-actions, .inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}
.center { justify-content: center; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 760;
  border: 1px solid var(--line);
}
.button.primary { background: var(--deep); color: #fff8ed; box-shadow: 0 14px 34px rgba(16,42,42,.20); }
.button.secondary { background: rgba(255,255,255,.36); color: var(--ink); }
.button:hover { transform: translateY(-1px); }

.hero-card, .card, .panel {
  background: var(--card);
  border: 1px solid rgba(255,255,255,.7);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}

.hero-card { padding: 24px; overflow: hidden; }
.trajectory-frame {
  min-height: 480px;
  border-radius: 22px;
  background: linear-gradient(145deg, #123231, #446a61 58%, #a76f3f);
  padding: 22px;
  color: #fff8ed;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.trajectory-frame svg { width: 100%; height: auto; }
.trajectory-path {
  fill: none;
  stroke: rgba(255,248,237,.92);
  stroke-width: 7;
  stroke-linecap: round;
  filter: drop-shadow(0 8px 20px rgba(0,0,0,.20));
}
.node { fill: #f5f1e8; opacity: .9; }
.node.active { fill: #ffd39b; }
.metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.metric-grid span {
  border: 1px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.09);
  border-radius: 16px;
  padding: 12px;
  font-size: .9rem;
}
.metric-grid strong { display: block; }

.section-heading { max-width: 820px; margin-bottom: 36px; }
.section-heading.narrow { margin-left: auto; margin-right: auto; text-align: center; }
.section-heading p { color: var(--muted); }
.three-grid, .two-grid {
  display: grid;
  gap: 22px;
}
.three-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.two-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { padding: 28px; }
.card p, .panel p { color: var(--muted); }
.card.large { padding: 34px; }

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr);
  gap: 44px;
  align-items: center;
}
.reverse { grid-template-columns: minmax(320px, .85fr) minmax(0, 1.15fr); }
.panel { padding: 34px; }
.panel.warm { background: rgba(255, 245, 229, 0.84); }
.check-list { list-style: none; padding: 0; margin: 18px 0 0; }
.check-list li {
  padding: 11px 0 11px 30px;
  border-top: 1px solid var(--line);
  position: relative;
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-2);
  font-weight: 900;
}

.framework { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.levels { display: grid; gap: 14px; max-width: 900px; margin: 34px auto 0; }
.level {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 22px;
  align-items: start;
  padding: 22px;
  background: rgba(255,255,255,.42);
  border: 1px solid var(--line);
  border-radius: 22px;
}
.level-number {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--deep);
  color: #fff8ed;
  font-weight: 900;
}
.level h3 { margin-bottom: 8px; }
.level p { color: var(--muted); margin: 0; }

.cta { text-align: center; max-width: 880px; }
.cta p:not(.eyebrow) { color: var(--muted); font-size: 1.1rem; }
.footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 34px 22px 54px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.muted { color: var(--muted); }

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex;
    border: 1px solid var(--line);
    background: rgba(255,255,255,.5);
    border-radius: 999px;
    padding: 10px 14px;
    font-weight: 700;
  }
  .nav-links {
    position: absolute;
    left: 22px;
    right: 22px;
    top: 76px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
    background: rgba(255,252,244,.96);
    border: 1px solid var(--line);
    border-radius: 20px;
    box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .hero, .split, .reverse, .three-grid, .two-grid { grid-template-columns: 1fr; }
  .section-pad { padding: 66px 18px; }
  .trajectory-frame { min-height: auto; }
  .level { grid-template-columns: 1fr; }
  h1 { font-size: clamp(2.7rem, 15vw, 5rem); }
}

@media (prefers-reduced-motion: no-preference) {
  .trajectory-path {
    stroke-dasharray: 900;
    stroke-dashoffset: 900;
    animation: drawPath 3.8s ease forwards;
  }
  @keyframes drawPath { to { stroke-dashoffset: 0; } }
}