.theme-toggle-btn{border:1px solid var(--color-border);background:var(--color-panel-bg,var(--color-surface));color:var(--color-text);cursor:pointer;border-radius:10px;justify-content:center;align-items:center;min-width:44px;height:44px;padding:0;transition:background-color .2s,border-color .2s,transform .2s;display:inline-flex}.theme-toggle-btn:hover{background:var(--color-hover-bg);border-color:var(--color-accent,var(--color-primary));transform:translateY(-1px)}.theme-toggle-btn:focus-visible{outline:2px solid var(--color-accent,var(--color-primary));outline-offset:2px}.theme-toggle-btn__icon{justify-content:center;align-items:center;font-size:.95rem;display:inline-flex}@media (prefers-reduced-motion:reduce){.theme-toggle-btn{transition:none}}