#na-theme-fab{position:fixed;right:20px;bottom:22px;z-index:2147483000;width:46px;height:46px;border-radius:50%;border:none;cursor:pointer;color:#fff;font-size:20px;background:linear-gradient(135deg,#6366f1,#8b5cf6 55%,#06b6d4);box-shadow:0 10px 26px rgba(99,102,241,.42)}
#na-theme-fab:hover{transform:translateY(-2px)}
#na-theme-panel{position:fixed;right:20px;bottom:78px;z-index:2147483000;width:284px;background:#fff;color:#16182c;border:1px solid #e4e6f3;border-radius:16px;box-shadow:0 20px 50px rgba(20,22,60,.22);padding:14px;font:13px/1.5 system-ui,-apple-system,"Segoe UI",sans-serif;display:none}
#na-theme-panel.open{display:block}
#na-theme-panel h4{margin:0 0 10px;font-size:14px;font-weight:700}
#na-theme-panel .na-sec{margin-top:12px}
#na-theme-panel .na-label{font-size:12px;color:#6b7099;margin-bottom:6px}
#na-theme-panel .na-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
#na-theme-panel .na-dot{position:relative;height:30px;border-radius:9px;border:2px solid transparent;cursor:pointer}
#na-theme-panel .na-dot.active{border-color:#1f2937;box-shadow:0 0 0 2px #fff inset}
#na-theme-panel .na-modes{display:flex;gap:6px}
#na-theme-panel .na-mode{flex:1;text-align:center;padding:6px 0;border:1px solid #e4e6f3;border-radius:9px;cursor:pointer;font-size:12px}
#na-theme-panel .na-mode.active{background:#eef0ff;border-color:#6366f1;color:#4f46e5;font-weight:600}
#na-theme-panel .na-tip{margin-top:10px;font-size:11px;color:#8b90b5}
#na-theme-panel .na-close{position:absolute;right:12px;top:10px;cursor:pointer;color:#8b90b5;font-size:16px;line-height:1}
@media(max-width:640px){#na-theme-panel{right:12px;left:12px;width:auto}#na-theme-fab{right:14px;bottom:16px}}