/* Theme toggle — shared by the panel shell and interview prep pages. */

.theme-toggle {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.25rem;
  height: var(--tap, 2.75rem);
  padding: 0;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-paper-2) 80%, transparent);
  color: var(--color-ink-2);
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease, box-shadow 160ms ease;
}

.theme-toggle:hover {
  border-color: var(--border-hover);
  color: var(--color-ink);
  background: var(--color-paper-2);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.theme-toggle-track {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  width: 2.55rem;
  height: 1.45rem;
  padding: 0 0.18rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-ink) 8%, var(--color-paper));
}

.theme-toggle-sun,
.theme-toggle-moon {
  position: relative;
  z-index: 1;
  justify-self: center;
  opacity: 0.55;
  transition: opacity 160ms ease, color 160ms ease;
}

.theme-toggle-thumb {
  position: absolute;
  top: 0.12rem;
  left: 0.12rem;
  width: 1.2rem;
  height: 1.2rem;
  border-radius: 999px;
  background: var(--color-paper);
  box-shadow: 0 1px 2px rgba(14, 58, 105, 0.18), 0 4px 10px -4px rgba(14, 58, 105, 0.28);
  transition: transform 180ms cubic-bezier(0.22, 1, 0.36, 1), background 160ms ease, box-shadow 160ms ease;
}

.theme-toggle.is-dark .theme-toggle-thumb {
  transform: translateX(1.15rem);
  background: var(--color-paper-3);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.35), 0 6px 14px -6px rgba(0, 0, 0, 0.45);
}

.theme-toggle:not(.is-dark) .theme-toggle-sun,
.theme-toggle.is-dark .theme-toggle-moon {
  opacity: 1;
  color: var(--color-accent);
}

:root[data-theme="dark"] .theme-toggle {
  background: color-mix(in srgb, var(--color-paper-3) 70%, transparent);
}