.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 245, 242, 0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand img {
  width: 48px;
  height: 48px;
}

.brand-title {
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  font-weight: 600;
  display: block;
  font-size: 1rem;
}

.brand-subtitle {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-link {
  font-weight: 600;
  font-size: 0.95rem;
  position: relative;
  padding: 6px 0;
  color: var(--text-muted);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.2s ease;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--text-main);
}

.nav-link:hover::after,
.nav-link.is-active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  cursor: pointer;
}

.nav-toggle-line {
  width: 22px;
  height: 2px;
  background: var(--text-main);
}

@media (max-width: 960px) {
  .primary-nav {
    position: absolute;
    top: 72px;
    right: 4vw;
    background: #fff;
    border-radius: 18px;
    border: 1px solid var(--border);
    box-shadow: 0 16px 30px rgba(0, 0, 0, 0.1);
    padding: 18px 20px;
    flex-direction: column;
    align-items: flex-start;
    min-width: 220px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .site-header.nav-open .primary-nav {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-toggle {
    display: flex;
  }
}

@media (max-width: 620px) {
  .brand-title {
    font-size: 0.9rem;
  }

  .brand-subtitle {
    display: none;
  }
}