.theme-switcher {
  position: relative;
  display: inline-flex;
  align-items: center;
  z-index: 80;
  color: var(--theme-switch-text, var(--text, var(--auth-text, #fff)));
}

.theme-toggle {
  appearance: none;
  border: 1px solid var(--theme-switch-border, rgba(255,255,255,.16));
  min-height: 44px;
  padding: 0 13px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  color: var(--theme-switch-text, inherit);
  background:
    linear-gradient(135deg, var(--theme-switch-bg-a, rgba(255,255,255,.12)), var(--theme-switch-bg-b, rgba(255,255,255,.06)));
  box-shadow: var(--theme-switch-shadow, 0 14px 34px rgba(0,0,0,.2));
  cursor: pointer;
  font: inherit;
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

.theme-toggle:hover,
.theme-toggle[aria-expanded="true"] {
  transform: translateY(-2px);
  border-color: var(--theme-switch-border-active, rgba(255,255,255,.32));
  box-shadow: var(--theme-switch-shadow-active, 0 20px 46px rgba(139,92,246,.28));
}

.theme-toggle-icon {
  width: 23px;
  height: 23px;
  border-radius: 999px;
  display: inline-grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, #8b5cf6, #ec4899);
  font-size: 13px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.28), 0 10px 24px rgba(139,92,246,.3);
}

.theme-toggle-label {
  font-size: 13px;
  white-space: nowrap;
}

.theme-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 176px;
  padding: 8px;
  border-radius: 20px;
  border: 1px solid var(--theme-switch-menu-border, rgba(255,255,255,.14));
  background: var(--theme-switch-menu-bg, rgba(11,7,26,.86));
  backdrop-filter: blur(20px);
  box-shadow: 0 24px 70px rgba(0,0,0,.34);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(.98);
  transform-origin: top right;
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}

.theme-switcher.is-open .theme-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.theme-menu button {
  width: 100%;
  border: 0;
  border-radius: 14px;
  padding: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--theme-switch-menu-text, #fff);
  background: transparent;
  text-align: left;
  cursor: pointer;
  font: inherit;
  transition: background .16s ease, transform .16s ease, color .16s ease;
}

.theme-menu button:hover {
  transform: translateX(2px);
  background: var(--theme-switch-menu-hover, rgba(255,255,255,.08));
}

.theme-menu button[aria-checked="true"] {
  background: linear-gradient(135deg, rgba(139,92,246,.95), rgba(236,72,153,.86));
  color: #fff;
}

.theme-menu button span {
  width: 26px;
  height: 26px;
  border-radius: 10px;
  display: inline-grid;
  place-items: center;
  background: rgba(255,255,255,.1);
  flex: 0 0 auto;
}

.theme-menu button strong {
  font-size: 13px;
}

.header-tools {
  display: inline-flex;
  align-items: center;
  margin-left: 12px;
}

#header .theme-switcher {
  --theme-switch-text: #2b164a;
  --theme-switch-border: rgba(124,58,237,.18);
  --theme-switch-border-active: rgba(124,58,237,.34);
  --theme-switch-bg-a: rgba(255,255,255,.92);
  --theme-switch-bg-b: rgba(248,245,255,.78);
  --theme-switch-menu-bg: rgba(255,255,255,.94);
  --theme-switch-menu-border: rgba(124,58,237,.16);
  --theme-switch-menu-text: #24113e;
  --theme-switch-menu-hover: rgba(124,58,237,.08);
  --theme-switch-shadow: 0 12px 28px rgba(76,29,149,.12);
  --theme-switch-shadow-active: 0 18px 42px rgba(124,58,237,.22);
}

html[data-theme="dark"] #header .theme-switcher {
  --theme-switch-text: #fff;
  --theme-switch-border: rgba(255,255,255,.14);
  --theme-switch-border-active: rgba(255,255,255,.28);
  --theme-switch-bg-a: rgba(255,255,255,.11);
  --theme-switch-bg-b: rgba(255,255,255,.05);
  --theme-switch-menu-bg: rgba(12,7,27,.94);
  --theme-switch-menu-border: rgba(255,255,255,.14);
  --theme-switch-menu-text: #fff;
  --theme-switch-menu-hover: rgba(255,255,255,.08);
  --theme-switch-shadow: 0 14px 34px rgba(0,0,0,.26);
  --theme-switch-shadow-active: 0 20px 46px rgba(139,92,246,.26);
}

html[data-theme="light"] .landing-shell .theme-switcher,
html[data-theme="light"] .auth-nav .theme-switcher,
html[data-theme="light"] .public-nav .theme-switcher {
  --theme-switch-text: #211337;
  --theme-switch-border: rgba(124,58,237,.16);
  --theme-switch-border-active: rgba(124,58,237,.34);
  --theme-switch-bg-a: rgba(255,255,255,.94);
  --theme-switch-bg-b: rgba(248,245,255,.76);
  --theme-switch-menu-bg: rgba(255,255,255,.94);
  --theme-switch-menu-border: rgba(124,58,237,.16);
  --theme-switch-menu-text: #211337;
  --theme-switch-menu-hover: rgba(124,58,237,.08);
  --theme-switch-shadow: 0 12px 32px rgba(76,29,149,.12);
  --theme-switch-shadow-active: 0 18px 46px rgba(124,58,237,.2);
}

@media (max-width: 860px) {
  .theme-toggle-label {
    display: none;
  }

  .theme-toggle {
    width: 44px;
    padding: 0;
  }

  .theme-menu {
    right: -8px;
  }

  #header .header-tools {
    margin-left: auto;
    margin-right: 12px;
  }
}

@media (max-width: 520px) {
  .auth-nav-actions,
  .public-nav-actions,
  .nav-actions {
    gap: 8px;
  }

  .theme-menu {
    width: 164px;
  }
}

/* Keep theme dropdowns above page cards/forms. */
.theme-switcher {
  z-index: 3000;
}

.theme-switcher.is-open {
  z-index: 5000;
}

.theme-menu {
  z-index: 5001;
}

.auth-nav .theme-menu,
.public-nav .theme-menu,
.landing-nav .theme-menu,
.nav-actions .theme-menu,
.header-tools .theme-menu {
  box-shadow: 0 24px 80px rgba(0,0,0,.38), 0 0 0 1px rgba(255,255,255,.04) inset;
}

html[data-theme="light"] .theme-menu {
  box-shadow: 0 24px 80px rgba(76,29,149,.18), 0 0 0 1px rgba(255,255,255,.72) inset;
}