#skin-switcher {
  position: fixed;
  right: 1rem;
  bottom: 8rem;
  z-index: 1000;
}

#skin-switcher .skin-toggle {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 999px;
  border: 1px solid var(--btn-border-color, #d0d0d0);
  background: var(--button-bg, #ffffff);
  color: var(--text-color, #222222);
  box-shadow: var(--card-shadow, 0 4px 12px rgba(0, 0, 0, 0.15));
  cursor: pointer;
}

#skin-switcher .skin-panel {
  margin-top: 0.5rem;
  width: 12rem;
  padding: 0.5rem;
  border-radius: 12px;
  border: 1px solid var(--main-border-color, #e5e5e5);
  background: var(--card-bg, #ffffff);
  box-shadow: var(--card-shadow, 0 8px 22px rgba(0, 0, 0, 0.2));
  display: none;
}

#skin-switcher.open .skin-panel {
  display: block;
}

#skin-switcher .skin-btn {
  width: 100%;
  margin: 0.2rem 0;
  padding: 0.45rem 0.6rem;
  border-radius: 8px;
  border: 1px solid var(--btn-border-color, #d0d0d0);
  background: var(--button-bg, #ffffff);
  color: var(--text-color, #222222);
  text-align: left;
  cursor: pointer;
}

#skin-switcher .skin-btn:hover {
  background: var(--sidebar-hover-bg, rgba(120, 120, 120, 0.12));
}

html.theme-switching *,
html.theme-switching *::before,
html.theme-switching *::after {
  transition: none !important;
  animation: none !important;
}

html[data-user-skin='sepia'] {
  --main-bg: #f7f1e6;
  --card-bg: #fdf7eb;
  --text-color: #4e3f2b;
  --heading-color: #3a2b1a;
  --link-color: #8a4f2b;
  --sidebar-bg: #efe2cd;
  --sidebar-border-color: #e2d1b8;
  --sidebar-muted-color: #6a533c;
  --sidebar-active-color: #3b2c1c;
  --topbar-bg: rgba(247, 241, 230, 0.85);
  --main-border-color: #e6d6bf;
  --btn-border-color: #d8c3a6;
  --button-bg: #fff9ef;
}

@media (max-width: 768px) {
  #skin-switcher {
    right: 0.75rem;
    bottom: 7rem;
  }
}