.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(246, 248, 251, 0.76);
  border-bottom: 1px solid rgba(217, 226, 234, 0.72);
  backdrop-filter: blur(18px);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  color: #ffffff;
  background: var(--accent-strong);
  border-radius: 12px;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.site-nav a {
  padding: 9px 16px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 700;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--accent-strong);
  background: var(--surface-blue);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--text);
}

.site-footer {
  padding: 58px 0 28px;
  background: #eaf0f4;
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 36px;
}

.footer-grid strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.12rem;
}

.footer-contact {
  display: grid;
  gap: 8px;
  color: var(--muted);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-top: 34px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}