.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(8px);
  background: rgba(7, 10, 20, 0.7);
  border-bottom: 1px solid rgba(114, 130, 170, 0.18);
}
.nav-wrap {
  width: min(1220px, 94vw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}
.brand-badge {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  box-shadow: 0 0 20px rgba(41, 182, 255, 0.35);
}
.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.nav-links a {
  padding: 9px 12px;
  border-radius: 10px;
  color: #cbd8ff;
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  background: rgba(41, 182, 255, 0.14);
  color: #fff;
}
.nav-tools { display: flex; gap: 8px; align-items: center; }

.site-footer {
  margin-top: 40px;
  border-top: 1px solid rgba(122, 136, 173, 0.2);
  background: rgba(5, 8, 16, 0.8);
}
.footer-grid {
  width: min(1220px, 94vw);
  margin: 0 auto;
  padding: 30px 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}
.footer-grid p { margin-bottom: 8px; }

.main-grid {
  display: grid;
  gap: 20px;
}

.section-card {
  background: var(--surface);
  border: 1px solid rgba(89, 112, 166, 0.35);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}

.grid-2 { display: grid; gap: 20px; grid-template-columns: 1.1fr 1fr; }
.grid-3 { display: grid; gap: 16px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { display: grid; gap: 16px; grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 980px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .nav-wrap { flex-wrap: wrap; }
}