.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:2.75rem;height:2.75rem;border:1px solid var(--color-border);border-radius:var(--radius-pill);background:var(--color-surface);color:var(--color-text);font-size:.95rem;line-height:1;cursor:pointer;transition:border-color var(--transition-fast),background var(--transition-fast)}.theme-toggle:hover{border-color:var(--color-accent);background:var(--color-accent-light)}