/* Shared light/dark toggle  --  Sloane Harrow interactive novels */

.theme-toggle {
  position: fixed;
  z-index: 95; /* above system chrome (~90); below dossier overlay (200) */
  bottom: max(1rem, env(safe-area-inset-bottom));
  right: max(1rem, env(safe-area-inset-right));
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border, #333);
  background: var(--card, #161b22);
  color: var(--text, #e6edf3);
  font-family: var(--sans, system-ui, sans-serif);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(10px);
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease;
}

.theme-toggle:hover {
  transform: translateY(-1px);
}

.theme-toggle:active {
  transform: translateY(0);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--accent, #58a6ff);
  outline-offset: 3px;
}

.theme-toggle .theme-toggle-icon {
  font-size: 1rem;
  line-height: 1;
}

.theme-toggle .theme-toggle-label {
  text-transform: uppercase;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}

/* Sit above chrome footers on very small screens */
@media (max-width: 420px) {
  .theme-toggle .theme-toggle-label {
    /* icon-only on tiny screens */
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
  }
  .theme-toggle {
    padding: 0.65rem 0.75rem;
  }
}

html {
  color-scheme: dark light;
}

html[data-theme="light"] {
  color-scheme: light;
}

html[data-theme="dark"] {
  color-scheme: dark;
}