.theme-switcher{display:inline-flex;align-items:center;gap:8px;padding:6px;border:1px solid rgba(255,255,255,.22);background:linear-gradient(135deg, rgba(255,255,255,.26), rgba(255,255,255,.12));border-radius:16px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
.theme-btn{width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;border:1px solid transparent;background:transparent;color:var(--text);border-radius:12px;padding:0;font-size:18px;cursor:pointer;transition:.2s ease}
.theme-btn:hover{transform:translateY(-1px);background:rgba(255,255,255,.16)}
.theme-btn.is-active{background:rgba(255,255,255,.22);border-color:rgba(255,255,255,.26);box-shadow:inset 0 1px 0 rgba(255,255,255,.34);color:var(--primary)}
.theme-fixed{position:fixed;top:22px;right:22px;z-index:1000}
@media (max-width:640px){.theme-switcher{gap:6px;padding:6px 8px;border-radius:14px}.theme-btn{width:30px;height:30px;border-radius:8px;font-size:16px}.theme-fixed{top:16px;right:16px}}