:root{--font-family:"Inter", sans-serif;--color-bg:#dfe3ee;--color-surface:#fff;--color-primary:#3b5998;--color-primary-text:#fff;--color-text:#1d2129;--color-text-muted:#8b9dc3;--color-success:#3b5998;--glass-bg:#ffffffe6;--glass-border:1px solid #3b599826;--glass-blur:blur(16px);--overlay-bg:#3b599866;--scanner-frame:2px solid #3b5998}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--color-bg);color:var(--color-text);touch-action:none;font-family:var(--font-family);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-attachment:fixed;flex-direction:column;min-height:100dvh;margin:0;padding:0;transition:color 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#3b82f6;border-radius:1rem;width:85%;max-width:320px;margin:0 auto;position:relative;overflow:hidden;box-shadow:0 10px 30px #3b82f64d}#qr-reader{flex-direction:column;justify-content:center;display:flex;border:none!important;width:100%!important;height:100%!important}#qr-reader video{object-fit:cover;-webkit-playsinline:1;display:block;width:100%!important;height:100%!important}#qr-reader>div>:not(video){opacity:0!important;pointer-events:none!important}.laser-overlay{pointer-events:none;z-index:20;width:100%;height:100%;position:absolute;top:0;left:0}.laser-line{background-color:#ef4444;width:100%;height:2px;animation:2s cubic-bezier(.4,0,.2,1) infinite scan;position:absolute;top:0;box-shadow:0 0 15px 3px #ef4444cc}@keyframes scan{0%{opacity:0;top:5%}15%{opacity:1}85%{opacity:1}to{opacity:0;top:95%}}.app-logo{z-index:50;position:absolute;top:1.5rem;left:1.5rem}.app-logo img{object-fit:contain;object-position:left top;filter:drop-shadow(0 2px 5px 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#00000080}.cart-header{border-bottom:var(--glass-border);justify-content:space-between;align-items:center;padding:1.5rem;display:flex}.cart-header h2{align-items:center;gap:.5rem;margin:0;font-size:1.25rem;display:flex}.icon-btn{box-shadow:none;color:var(--color-text);background:0 0;padding:.5rem}.icon-btn:hover{background:#dfe3ee;transform:none}.cart-body{flex-direction:column;flex:1;gap:.75rem;padding:1rem;display:flex;overflow-y:auto}.empty-cart{text-align:center;color:var(--color-text-muted);background:var(--glass-bg);border:1px dashed 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p{color:var(--color-text-muted);margin:0;font-size:.875rem}.login-form{flex-direction:column;gap:1rem;display:flex}.login-form input{text-align:center;background:#f7f7f7;border:1px solid #3b599833;border-radius:.75rem;outline:none;width:100%;padding:1rem;font-family:monospace;font-size:16px;transition:border-color .2s}.login-form input:focus{border-color:var(--color-primary);background:#fff}.login-error{color:#ef4444;text-align:center;font-size:.875rem;font-weight:500}.login-submit-btn{width:100%;padding:1rem}.spinner-icon{animation:1s linear infinite spin}.welcome-user-text{color:var(--color-primary);z-index:45;text-align:center;background:var(--glass-bg);border:var(--glass-border);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);white-space:nowrap;text-overflow:ellipsis;border-radius:2rem;max-width:90vw;padding:.5rem 1rem;font-size:1.1rem;font-weight:700;animation:.5s fadeIn;position:absolute;top:calc(50% - 200px);left:50%;overflow:hidden;transform:translate(-50%,-50%);box-shadow:0 4px 15px #0000001a}