#masthead {
  position: fixed !important;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: min(var(--max), calc(100% - 32px));
  z-index: 9999;
  background: transparent !important;
  box-shadow: none !important;
}

#masthead .site-main-header-wrap,
#masthead .site-header-row-container-inner {
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
}

#masthead .site-container {
  max-width: none !important;
  padding: 0 !important;
}

#masthead .site-main-header-inner-wrap {
  min-height: 0 !important;
  height: auto !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  gap: 24px;
  padding: 14px 16px 14px 20px !important;
  background: var(--surface) !important;
  border: 1px solid var(--border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 999px;
  box-shadow: 0 18px 50px rgba(8, 17, 31, 0.08);
}

@media (prefers-color-scheme: dark) {
  #masthead .site-main-header-inner-wrap {
    box-shadow: 0 18px 58px rgba(0, 0, 0, 0.32);
  }
}

body.dark-mode #masthead .site-main-header-inner-wrap {
  box-shadow: 0 18px 58px rgba(0, 0, 0, 0.32);
}

#masthead img.custom-logo {
  display: block;
  width: auto !important;
  max-height: 30px !important;
  height: 30px !important;
}

#masthead .main-navigation ul {
  display: flex !important;
  align-items: center !important;
  gap: 20px !important;
}

#masthead .main-navigation li {
  margin: 0 !important;
}

#masthead .main-navigation a {
  min-height: 0 !important;
  height: auto !important;
  line-height: 1.2 !important;
  padding: 0 !important;
  color: var(--muted) !important;
  font-size: 0.92rem !important;
  font-weight: 500 !important;
  text-decoration: none !important;
  transition: color 0.25s ease;
}

#masthead .main-navigation a:hover {
  color: var(--text) !important;
}

#masthead .header-button,
#masthead .header-button-wrap .button,
#masthead a.button {
  background: var(--text) !important;
  color: var(--bg) !important;
  border: 1px solid var(--border) !important;
  box-shadow: 0 10px 24px rgba(8, 17, 31, 0.14);
}

#masthead .header-button:hover,
#masthead .header-button-wrap .button:hover,
#masthead a.button:hover {
  transform: translateY(-1px);
  opacity: 0.92;
}

@media (prefers-color-scheme: dark) {
  #masthead .header-button,
  #masthead .header-button-wrap .button,
  #masthead a.button {
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
  }
}

body.dark-mode #masthead .header-button,
body.dark-mode #masthead .header-button-wrap .button,
body.dark-mode #masthead a.button {
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
}

.site-branding img.custom-logo,
.site-branding .custom-logo-link img {
  width: auto !important;
  max-width: none !important;
  height: 28px !important;
  max-height: 28px !important;
  object-fit: contain !important;
  display: block;
}