.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(251, 252, 255, 0.78);
  border-bottom: 1px solid rgba(19, 34, 56, 0.08);
  backdrop-filter: blur(18px);
}

.site-header__inner {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 14px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.site-header__brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
}

.logo__img {
  height: 34px;
  width: auto;
}

.logo__text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 1;
  gap: 1rem;
}

.site-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 0.28rem;
  flex-direction: column;
  width: 2.8rem;
  height: 2.8rem;
  border: 1px solid rgba(19, 34, 56, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink);
}

.site-nav-toggle span {
  width: 1rem;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform 160ms ease, opacity 160ms ease;
}

.site-header[data-nav-open="1"] .site-nav-toggle span:first-child {
  transform: translateY(3px) rotate(45deg);
}

.site-header[data-nav-open="1"] .site-nav-toggle span:last-child {
  transform: translateY(-3px) rotate(-45deg);
}

.site-nav__links,
.site-nav__tools {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.site-nav__tools {
  justify-content: flex-end;
}

.nav-link {
  padding: 0.65rem 0.95rem;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
  transition: color 160ms ease, background 160ms ease, transform 160ms ease;
}

.nav-link:hover {
  color: var(--ink);
  background: rgba(23, 104, 255, 0.06);
  transform: translateY(-1px);
}

.nav-link--cta {
  background: linear-gradient(135deg, #132238, #1d3150);
  color: #fff;
  box-shadow: 0 16px 24px rgba(19, 34, 56, 0.18);
}

.nav-link--cta:hover {
  color: #fff;
  background: var(--accent);
}

@media (max-width: 960px) {
  .site-header__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-header__brand {
    width: 100%;
  }

  .site-nav {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav__links,
  .site-nav__tools {
    width: 100%;
    justify-content: flex-start;
  }
}

@media (max-width: 720px) {
  .site-header__inner {
    width: min(1240px, calc(100% - 24px));
    gap: 0.9rem;
  }

  .site-header__brand {
    width: 100%;
  }

  .site-nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    padding: 1rem;
    border: 1px solid rgba(19, 34, 56, 0.08);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: var(--shadow-sm);
  }

  .site-header[data-nav-open="1"] .site-nav {
    display: flex;
  }

  .site-nav__links,
  .site-nav__tools {
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav__tools {
    padding-top: 0.5rem;
    border-top: 1px solid rgba(19, 34, 56, 0.08);
  }

  .nav-link,
  .nav-link--cta {
    justify-content: center;
  }
}