/* =========================================
       QR DECODER — PREMIUM UI
       ========================================= */
    .da-wrapper {
        --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
        --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
        display: flex;
        justify-content: center;
            padding: clamp(0px, 5vw, 0px) 20px;
    }

    .da-panel {
        position: relative;                
        width: 100%;
        max-width: 1200px;
        border-radius: 28px;
        padding: clamp(28px, 5vw, 56px);
        overflow: hidden;
    }

    

    /* ---------- HERO ---------- */
    .da-hero { text-align: center; max-width: 800px; margin: 0 auto; padding: clamp(10px, 4vw, 30px) 0; }

    .da-hero-badge {
        display: inline-flex; align-items: center; gap: 8px;
        font-size: 12.5px; font-weight: 800; letter-spacing: 0.3px;
        color: var(--primary-color); background: var(--primary-light);
        padding: 7px 16px; border-radius: 100px; margin-bottom: 22px;
    }

    .da-hero-title {
        font-size: clamp(30px, 4.4vw, 44px);
        font-weight: 900;
        line-height: 1.15;
        letter-spacing: -0.025em;
        color: var(--text-main);
        margin-bottom: 16px;
    }

    .da-hero-title em {
        font-style: normal;
        background: linear-gradient(120deg, #10b981, var(--primary-color));
        -webkit-background-clip: text; background-clip: text; color: transparent;
    }

    .da-hero-desc { font-size: 16.5px; color: var(--text-muted); line-height: 1.7; margin-bottom: 36px; }

    /* ---------- OPTIONS BAR ---------- */
    .options-bar { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 16px; padding: 12px 20px; display: flex; align-items: center; gap: 16px; margin-bottom: 24px; box-shadow: 0 4px 20px rgba(0,0,0,0.02); flex-wrap: wrap; }
    
    .ob-lbl { font-size: 11px; font-weight: 800; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
    .f-btn { background: transparent; border: none; font-family: inherit; font-size: 13px; font-weight: 700; color: var(--text-muted); outline: none; cursor: pointer; padding: 6px 12px; border-radius: 8px; transition: all 0.2s; }
    .f-btn:hover { background: var(--bg-body); color: var(--text-main); }
    .f-btn.on { background: rgba(16, 185, 129, 0.1); color: #10b981; }
    
    .ob-sep { width: 1px; height: 24px; background: var(--border-color); margin: 0 4px; }
    
    .dir-toggle { display: flex; align-items: center; gap: 8px; background: var(--bg-body); border: 1px solid var(--border-color); border-radius: 8px; padding: 6px 12px; font-size: 11px; font-weight: 800; color: var(--text-muted); cursor: pointer; transition: all 0.2s; }
    .dir-toggle:hover { border-color: #10b981; }
    .d-ltr, .d-rtl { transition: color 0.2s; }
    .dir-toggle.rtl .d-rtl { color: #10b981; }
    .dir-toggle:not(.rtl) .d-ltr { color: #10b981; }
    
    .usage-meter { margin-left: auto; display: flex; align-items: center; gap: 12px; }
    .usage-pips { display: flex; gap: 4px; }
    .pip { width: 8px; height: 8px; border-radius: 50%; background: var(--border-color); }
    .pip.used { background: #10b981; box-shadow: 0 0 8px rgba(16, 185, 129, 0.4); }
    .usage-lbl { font-family: 'Space Mono', monospace; font-size: 11px; font-weight: 700; color: #10b981; }

    /* ---------- HUD WORKSPACE ---------- */
    .hud-workspace { display: flex; flex-direction: column; align-items: center; gap: 24px; margin-bottom: 40px; position: relative; }
    
    .hud-controls { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; justify-content: center; width: 100%; }
    
    .hc-tabs { display: flex; gap: 8px; background: var(--card-bg); border: 1px solid var(--border-color); padding: 6px; border-radius: 100px; box-shadow: 0 4px 12px rgba(0,0,0,0.05); }
    .hc-tab { padding: 10px 24px; background: transparent; border: none; border-radius: 100px; font-size: 13px; font-weight: 800; color: var(--text-muted); display: flex; align-items: center; gap: 8px; cursor: pointer; transition: all 0.2s; }
    .hc-tab:hover { color: var(--text-main); }
    .hc-tab.active { background: var(--bg-body); color: var(--text-main); box-shadow: 0 2px 8px rgba(0,0,0,0.05); }
    
    .demo-btn { padding: 10px 20px; background: transparent; border: 1px solid var(--primary-color); border-radius: 100px; font-size: 13px; font-weight: 800; color: var(--primary-color); display: flex; align-items: center; gap: 8px; cursor: pointer; transition: all 0.2s; }
    .demo-btn:hover { background: rgba(var(--primary-color-rgb), 0.1); }

    /* Scanner Frame */
    .hud-scanner { position: relative; width: 100%; max-width: 400px; height: 400px; background: #000; border: 2px solid #333; border-radius: 24px; overflow: hidden; box-shadow: 0 20px 40px rgba(0,0,0,0.1); transition: all 0.3s; display: flex; align-items: center; justify-content: center; }
    .hud-scanner.active { border-color: var(--primary-color); box-shadow: 0 0 30px rgba(var(--primary-color-rgb), 0.2); }
    .hud-scanner.error { border-color: #ef4444; box-shadow: 0 0 30px rgba(239, 68, 68, 0.2); }
    .hud-scanner.has-payload { border-color: #10b981; }

    /* Reticles */
    .reticle { position: absolute; width: 40px; height: 40px; border: 3px solid var(--primary-color); z-index: 20; opacity: 0.3; transition: all 0.3s; pointer-events: none; }
    .hud-scanner.active .reticle { opacity: 1; }
    .reticle.tl { top: 20px; left: 20px; border-right: none; border-bottom: none; border-top-left-radius: 12px; }
    .reticle.tr { top: 20px; right: 20px; border-left: none; border-bottom: none; border-top-right-radius: 12px; }
    .reticle.bl { bottom: 20px; left: 20px; border-right: none; border-top: none; border-bottom-left-radius: 12px; }
    .reticle.br { bottom: 20px; right: 20px; border-left: none; border-top: none; border-bottom-right-radius: 12px; }

    /* Scanline */
    .scanline { position: absolute; top: 0; left: 0; width: 100%; height: 2px; background: var(--primary-color); box-shadow: 0 0 10px var(--primary-color); z-index: 15; opacity: 0; pointer-events: none; }
    .hud-scanner.active .scanline { opacity: 1; animation: scan 2s linear infinite; }
    @keyframes scan { 0% { top: 0%; } 100% { top: 100%; } }

    /* Lens Loader */
    .lens-loader { position: absolute; inset: 0; background: rgba(0,0,0,0.8); z-index: 30; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; opacity: 0; pointer-events: none; transition: opacity 0.3s; }
    .lens-loader.active { opacity: 1; }
    .ll-spinner { width: 40px; height: 40px; border: 3px solid rgba(255,255,255,0.1); border-top-color: var(--primary-color); border-radius: 50%; animation: spin 1s linear infinite; }
    .ll-text { font-family: 'Space Mono', monospace; font-size: 12px; font-weight: 800; color: var(--primary-color); letter-spacing: 2px; }

    /* Canvas */
    #renderCanvas { z-index: 10; max-width: 100%; max-height: 100%; display: none; }

    /* Input Zones */
    .input-zone { position: absolute; inset: 0; z-index: 5; display: none; flex-direction: column; align-items: center; justify-content: center; }
    .input-zone.active { display: flex; }

    .drop-zone { width: 100%; height: 100%; background: rgba(10,10,10,0.8); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; cursor: pointer; transition: all 0.3s; }
    .drop-zone:hover, .drop-zone.dragover { background: rgba(30,30,30,0.9); }
    .dz-icon { color: #666; transition: color 0.3s; }
    .drop-zone:hover .dz-icon { color: var(--primary-color); }
    .dz-text { color: #fff; font-size: 14px; font-weight: 800; text-align: center; line-height: 1.4; }
    .dz-sub { font-size: 11px; font-weight: 700; color: #888; }

    /* Camera Overlay */
    .cam-overlay { width: 100%; height: 100%; background: rgba(0,0,0,0.9); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; }
    video { width: 100%; height: 100%; object-fit: cover; }

    /* Payload Bay */
    .payload-bay { width: 100%; max-width: 600px; background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 24px; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.08); display: none; flex-direction: column; animation: slideUp 0.4s var(--ease-spring); }
    @keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
    
    .pb-header { padding: 16px 24px; background: var(--bg-body); border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
    .pb-title { font-size: 15px; font-weight: 900; color: var(--text-main); display: flex; align-items: center; gap: 8px; }
    .pb-title i { color: #10b981; width: 16px; height: 16px; }
    .pb-badge { font-family: 'Space Mono', monospace; font-size: 11px; font-weight: 800; padding: 4px 10px; border-radius: 8px; letter-spacing: 0.5px; border: 1px solid transparent; display: flex; align-items: center; gap: 6px; }
    
    .payload-data { padding: 24px; font-family: 'Space Mono', monospace; font-size: 14px; font-weight: 700; color: var(--text-main); word-break: break-all; max-height: 200px; overflow-y: auto; background: var(--card-bg); line-height: 1.6; }
    
    .pb-actions { padding: 16px 24px; border-top: 1px solid var(--border-color); background: var(--bg-body); display: flex; justify-content: flex-end; gap: 12px; }
    .pb-btn { padding: 10px 20px; border-radius: 12px; font-size: 13px; font-weight: 800; cursor: pointer; display: flex; align-items: center; gap: 8px; transition: all 0.2s; border: none; }
    .pb-btn.secondary { background: var(--card-bg); color: var(--text-main); border: 1px solid var(--border-color); }
    .pb-btn.secondary:hover { border-color: var(--primary-color); color: var(--primary-color); }
    .pb-btn.primary { background: var(--primary-color); color: #fff; box-shadow: 0 4px 12px rgba(var(--primary-color-rgb), 0.2); }
    .pb-btn.primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(var(--primary-color-rgb), 0.3); }

    /* ---------- STATS STRIP ---------- */
    .stats-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 40px; }
    .sc { background: var(--card-bg); border-radius: 16px; padding: 20px; border: 1px solid var(--border-color); display: flex; flex-direction: column; align-items: center; text-align: center; transition: transform 0.2s; box-shadow: 0 4px 20px rgba(0,0,0,0.02); }
    .sc:hover { transform: translateY(-2px); }
    .sc-ico { width: 36px; height: 36px; border-radius: 10px; display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
    
    .sc-ico.r { background: rgba(239, 68, 68, 0.1); color: #ef4444; }
    .sc-ico.b { background: rgba(59, 130, 246, 0.1); color: #3b82f6; }
    .sc-ico.g { background: rgba(34, 197, 94, 0.1); color: #22c55e; }
    .sc-ico.p { background: rgba(168, 85, 247, 0.1); color: #a855f7; }
    
    .sc-val { font-size: 28px; font-weight: 900; color: var(--text-main); line-height: 1; margin-bottom: 4px; transition: transform 0.3s; }
    .sc-lbl { font-size: 11px; font-weight: 800; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
    .sc-val.popped { transform: scale(1.3); color: var(--primary-color); }

    /* Toast */
    .toast { position: fixed; bottom: 24px; right: 24px; background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; padding: 12px 20px; display: flex; align-items: center; gap: 12px; font-size: 13px; font-weight: 700; color: var(--text-main); box-shadow: 0 10px 30px rgba(0,0,0,0.1); z-index: 100000; opacity: 0; pointer-events: none; transform: translateY(20px); transition: all 0.3s var(--ease-spring); }
    .toast.show { opacity: 1; transform: translateY(0); }
    .toast.success { border-left: 4px solid #10b981; }
    .toast.error { border-left: 4px solid #ef4444; }
    /* ── Comparison Panel & Analytics ── */
    .comparison-panel {
        background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 24px;
        padding: 28px; margin-top: 32px; box-shadow: 0 10px 30px rgba(0,0,0,0.02); margin-bottom: 40px;
    }
    .cp-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; flex-wrap: wrap; gap: 12px; }
    .cp-title { font-size: 16px; font-weight: 800; color: var(--text-main); display: flex; align-items: center; gap: 10px; }
    .cp-badge { font-size: 12px; font-weight: 800; padding: 6px 14px; border-radius: 100px; }
    .badge-high { background: color-mix(in srgb, var(--success, #10b981) 15%, transparent); color: var(--success, #10b981); border: 1px solid color-mix(in srgb, var(--success, #10b981) 30%, transparent); }

    .cp-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
    .cp-card { background: var(--bg-body); border: 1px solid var(--border-color); border-radius: 16px; padding: 20px; display: flex; flex-direction: column; gap: 14px; }
    .cpc-header { display: flex; justify-content: space-between; align-items: center; }
    .cpc-title { font-size: 13.5px; font-weight: 800; color: var(--text-main); }
    .cpc-tag { font-size: 11.5px; font-weight: 800; padding: 4px 10px; border-radius: 6px; }
    .cpc-tag.success { background: color-mix(in srgb, var(--success, #10b981) 15%, transparent); color: var(--success, #10b981); }

    .cpc-body { display: flex; flex-direction: column; gap: 10px; }
    .cpc-stat-row { font-size: 13px; color: var(--text-muted); display: flex; justify-content: space-between; }
    .cpc-stat-row strong { color: var(--text-main); font-weight: 700; }