.theme-toggle{border:1px solid var(--card-border);background:var(--surface-soft);width:2.25rem;height:2.25rem;color:var(--text-light);cursor:pointer;border-radius:999px;flex-shrink:0;justify-content:center;align-items:center;transition:background .15s,color .15s,border-color .15s;display:inline-flex}.theme-toggle:hover{background:var(--surface-soft-hover);color:var(--text-heading)}