.theme-toggle{border:1px solid var(--border-2);border-radius:var(--radius-lg);background:var(--surface-1);color:var(--text-primary);font-size:var(--text-sm);font-weight:var(--font-medium);cursor:pointer;transition:all var(--transition-base);will-change:transform,background-color,border-color;backface-visibility:hidden;align-items:center;gap:8px;padding:8px 12px;display:flex;transform:translateZ(0)}.theme-toggle:hover{background:var(--surface-2);border-color:var(--border-3);transform:translateY(-1px)translateZ(0)}.theme-toggle:active{transform:translateY(0)translateZ(0)}.theme-toggle:disabled{opacity:.5;cursor:not-allowed}.theme-toggle-icon-wrapper{justify-content:center;align-items:center;width:20px;height:20px;display:flex}.theme-icon{animation:.2s themeIconFadeIn;display:block}@keyframes themeIconFadeIn{0%{opacity:0;transform:scale(.8)rotate(-20deg)}to{opacity:1;transform:scale(1)rotate(0)}}.theme-icon-sun{color:var(--warning)}.theme-icon-moon{color:var(--info)}.theme-icon-auto{color:var(--text-primary)}.theme-toggle-label{-webkit-user-select:none;user-select:none;white-space:nowrap}@media (max-width:640px){.theme-toggle{gap:6px;padding:8px}.theme-toggle-label{font-size:12px}}.theme-toggle.theme-toggle-compact{gap:0;padding:8px}.theme-toggle.theme-toggle-compact .theme-toggle-label{display:none}.hdr-right-nav .theme-toggle{border-radius:8px;padding:6px 10px;font-size:.8125rem}.hdr-right-nav .theme-toggle-icon-wrapper,.hdr-right-nav .theme-toggle-icon-wrapper svg{width:16px;height:16px}.hdr-mobile-actions .theme-toggle{flex:1;justify-content:center;padding:10px}@media (prefers-reduced-motion:reduce){.theme-toggle,.theme-icon{transition:none;animation:none}.theme-toggle:hover{transform:none}}