.theme-switcher-btn{background:var(--accent);border:none;border-radius:50%;width:2.5rem;height:2.5rem;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;box-shadow:0 2px 8px var(--shadow)}.theme-switcher-btn:hover{background:var(--accent-hover);transform:scale(1.05)}.theme-switcher-btn:active{transform:scale(.95)}.theme-icon{color:var(--bg-primary);width:1rem;height:1rem}@media (max-width:768px){.theme-switcher-btn{width:2.25rem;height:2.25rem}.theme-icon{width:.875rem;height:.875rem}}