.theme-toggle{width:40px;height:40px;border-radius:50%;background-color:var(--background-light);border:2px solid var(--border-color);color:var(--text-dark);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-speed) ease}.theme-toggle:hover{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color);transform:scale(1.1)}.theme-toggle svg{display:block}@media (max-width:768px){.theme-toggle{width:36px;height:36px}}