.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(10px);
  background: rgba(247, 251, 249, 0.9);
  border-bottom: 1px solid rgba(144, 204, 182, 0.45);
}

.nav-shell {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.brand-mark {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: contain;
  object-position: center 56%;
  background: radial-gradient(circle at 50% 50%, #eefef7, #cff6e6 72%, #9de9cb);
  border: 1px solid rgba(0, 126, 87, 0.24);
  box-shadow: 0 10px 24px rgba(0, 126, 87, 0.22);
  padding: 4px;
}

.brand-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: 0.01em;
}

.brand-sub {
  color: var(--ink-500);
  font-size: 0.82rem;
  margin-top: 2px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-6);
  align-items: center;
}

.hero-copy h1 {
  margin: var(--space-4) 0 var(--space-4);
  font-family: var(--font-display);
  font-size: clamp(2.3rem, 5vw, 4rem);
  line-height: 1.03;
  letter-spacing: -0.02em;
}

.hero-copy p {
  margin: 0;
  color: var(--ink-500);
  font-size: clamp(1rem, 1.7vw, 1.16rem);
  max-width: 56ch;
}

.hero-actions {
  margin-top: var(--space-6);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero-panel {
  position: relative;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.feature-grid {
  margin-top: var(--space-6);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.docs-grid {
  margin-top: var(--space-6);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.roadmap-grid {
  margin-top: var(--space-5);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.cta-shell {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-5);
  align-items: center;
}

.site-footer {
  margin-top: var(--space-8);
  border-top: 1px solid var(--line);
  padding: var(--space-5) 0 var(--space-6);
  color: var(--ink-500);
}

.footer-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-4);
  font-size: 0.92rem;
}