*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0f0f0f;--panel-bg:#1a1a1a;--text:#e0e0e0;--text-muted:#888;--accent:#4f8cff;--border:#2a2a2a;--danger:#e05555}html,body,#root{background:var(--bg);width:100%;height:100%;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;overflow:hidden}.app{width:100%;height:100%;display:flex}.camera-area{background:#000;flex:1;position:relative;overflow:hidden}.panel{background:var(--panel-bg);border-left:1px solid var(--border);flex-direction:column;gap:16px;width:300px;padding:20px;display:flex;overflow-y:auto}.panel h2{margin-bottom:4px;font-size:16px;font-weight:600}.panel-section{border:1px solid var(--border);background:#1e1e1e;border-radius:8px;padding:12px}.panel-section h3{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px;font-size:13px}.btn{cursor:pointer;border:none;border-radius:6px;padding:8px 16px;font-size:14px;transition:background .15s}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{filter:brightness(1.15)}.btn-danger{background:var(--danger);color:#fff}.btn-ghost{color:var(--text);border:1px solid var(--border);background:0 0}.btn-ghost:hover{background:#2a2a2a}@media (width<=768px){.app{flex-direction:column}.panel{border-left:none;border-top:1px solid var(--border);width:100%;height:40%}}.glasses-grid{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.glasses-item{color:var(--text);cursor:pointer;background:#1a1a1a;border:none;border-radius:8px;flex-direction:column;align-items:center;gap:4px;padding:8px 4px;font-size:11px;transition:background .15s;display:flex}.glasses-item:hover{background:#2a2a2a}.glasses-item.active{background:#1a2a3a}.glasses-preview{background:#111;border:2px solid #333;border-radius:6px;padding:4px}.color-grid{grid-template-columns:repeat(4,1fr);gap:6px;display:grid}.color-swatch{aspect-ratio:1;cursor:pointer;border:2px solid #0000;border-radius:6px;width:100%;transition:border-color .15s}.color-swatch:hover{filter:brightness(1.2)}.color-swatch.active{border-color:#4f8cff;box-shadow:0 0 6px #4f8cff66}