:root{--primary: #2563eb;--primary-hover: #1d4ed8;--bg-dark: #0f172a;--card-bg: rgba(15, 23, 42, .85);--text: #f8fafc;--text-muted: #94a3b8;--success: #22c55e;--warning: #eab308;--danger: #ef4444}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}body,html{width:100%;height:100%;overflow:hidden;background-color:var(--bg-dark);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--text)}#app{position:relative;width:100%;height:100%;display:flex;flex-direction:column}.viewport-container{position:relative;width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:#000}video#camera-feed{display:none}canvas#ar-canvas{width:100%;height:100%;object-fit:cover}.ui-layer{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;display:flex;flex-direction:column;justify-content:space-between;padding:16px}.top-bar{display:flex;justify-content:space-between;align-items:center;pointer-events:auto}.status-badge{display:flex;align-items:center;gap:8px;background:var(--card-bg);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:6px 14px;border-radius:999px;font-size:13px;font-weight:500;border:1px solid rgba(255,255,255,.1)}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--danger);transition:background-color .3s}.status-dot.tracking{background:var(--success)}.status-dot.unstable{background:var(--warning)}.status-dot.lost{background:var(--danger)}.debug-btn{background:var(--card-bg);color:var(--text);border:1px solid rgba(255,255,255,.2);padding:6px 12px;border-radius:8px;font-size:12px;cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.bottom-panel{pointer-events:auto;display:flex;flex-direction:column;gap:12px;margin-bottom:env(safe-area-inset-bottom,8px)}.carousel{display:flex;gap:12px;overflow-x:auto;padding:4px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;scrollbar-width:none}.carousel::-webkit-scrollbar{display:none}.product-card{flex:0 0 110px;background:var(--card-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:10px;display:flex;flex-direction:column;align-items:center;cursor:pointer;transition:transform .2s,border-color .2s;scroll-snap-align:center}.product-card.active{border-color:var(--primary);background:#2563eb40;transform:translateY(-2px)}.product-card img{width:60px;height:60px;object-fit:contain;margin-bottom:6px}.product-card .title{font-size:11px;font-weight:600;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;width:100%}.product-card .size{font-size:10px;color:var(--text-muted)}.loading-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:var(--bg-dark);display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:100;gap:16px}.spinner{width:44px;height:44px;border:3px solid rgba(255,255,255,.1);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}