/* ===== header.css — site header, brand, nav ===== */

.site-header {
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: box-shadow 0.2s ease;
}
.site-header.scrolled {
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 18px;
}
.brand-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
}
.brand-name {
  font-size: 20px;
  letter-spacing: 0;
  font-weight: 500;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 15px;
  color: var(--ink-soft);
}
.site-nav a:hover {
  color: var(--ink);
}
.nav-cta {
  border: 1px solid var(--ink);
  padding: 8px 16px;
  border-radius: 2px;
  color: var(--ink) !important;
  transition:
    background 0.15s,
    color 0.15s;
}
.nav-cta:hover {
  background: var(--ink);
  color: var(--paper) !important;
}

@media (max-width: 800px) {
  .header-inner {
    height: 64px;
  }
  .brand-logo {
    width: 30px;
    height: 30px;
  }
  .brand-name {
    font-size: 18px;
  }
  .site-nav {
    gap: 18px;
    font-size: 14px;
  }
  .site-nav a:not(.nav-cta) {
    display: none;
  }
}