:root{--color-primary:#49a8d8;--color-primary-dark: #1565C0;--color-primary-light: #09324f;--color-extended-light:#ffffff99;--color-white: #FFFFFF;--color-black: #000000;--color-background: #F5F5F5;--color-surface: #FFFFFF;--color-text-primary: #212121;--color-text-secondary: #666666;--color-text-hint: #999999;--color-text-disabled: #BDBDBD;--color-border: #E0E0E0;--color-border-light: rgba(224, 224, 224, .5);--color-success: #4CAF50;--color-error: #F44336;--color-warning: #FF9800;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .08);--shadow-md: 0 2px 8px rgba(0, 0, 0, .1);--shadow-lg: 0 4px 12px rgba(0, 0, 0, .15);--shadow-xl: 0 8px 24px rgba(0, 0, 0, .2);--space-xs: 8px;--space-sm: 12px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-normal: .2s cubic-bezier(.4, 0, .2, 1);--transition-slow: .3s cubic-bezier(.4, 0, .2, 1);--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", sans-serif;--font-size-xs: 12px;--font-size-sm: 14px;--font-size-base: 16px;--font-size-lg: 18px;--font-size-xl: 20px;--font-size-2xl: 24px;--font-size-3xl: 28px;--font-size-4xl: 48px}*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);color:var(--color-text-primary);background-color:var(--color-background);line-height:1.5;overflow-x:hidden}.screen{min-height:100vh;display:flex;flex-direction:column;background-color:var(--color-background)}.screen-gradient{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%)}.screen-center{align-items:center;justify-content:center}.bg-svg{position:fixed;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover;z-index:0;pointer-events:none;transform:scale(1.1)}.screen>*:not(.bg-svg){position:relative;z-index:1}.content{flex:1;padding:var(--space-lg);display:flex;flex-direction:column;gap:var(--space-lg)}.content-center{align-items:center;justify-content:center}.app-bar{background-color:var(--color-primary);padding:var(--space-md) var(--space-lg);display:flex;align-items:center;gap:var(--space-md);box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:100}.app-bar-transparent{background-color:var(--color-extended-light);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.app-bar-title{color:var(--color-white);font-size:var(--font-size-xl);font-weight:500;letter-spacing:.15px;flex:1}.app-bar-spacer{flex:1}.logo-container{display:flex;align-items:center;gap:var(--space-sm)}.logo-circle{width:40px;height:40px;border-radius:var(--radius-full);background-color:#ffffff26;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md)}.app-name{color:var(--color-white);font-size:var(--font-size-xl);font-weight:500;letter-spacing:.5px}.btn{border:none;border-radius:var(--radius-md);padding:var(--space-md) var(--space-lg);font-size:var(--font-size-base);font-weight:600;cursor:pointer;transition:all var(--transition-normal);outline:none;display:inline-flex;align-items:center;justify-content:center;text-align:center;-webkit-user-select:none;user-select:none;letter-spacing:.5px;font-family:inherit}.btn:active{transform:scale(.98)}.btn-primary{background-color:var(--color-primary);color:var(--color-white);box-shadow:var(--shadow-lg)}.btn-primary:hover{background-color:var(--color-primary-dark)}.btn-secondary{background-color:transparent;color:var(--color-text-secondary);border:2px solid var(--color-border)}.btn-secondary:hover{background-color:var(--color-background)}.btn-danger{background-color:var(--color-error);color:var(--color-error);box-shadow:var(--shadow-lg)}.btn-danger:hover{background-color:#d32f2f}.btn-icon{background:none;border:none;padding:var(--space-xs);cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-full);transition:opacity var(--transition-normal);outline:none;color:inherit}.btn-icon:active{opacity:.7}.back-button{background:none;border:none;padding:var(--space-xs);cursor:pointer;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-full);transition:opacity var(--transition-normal);outline:none;color:var(--color-white)}.back-button:active{opacity:.7}.card{background-color:var(--color-surface);border-radius:var(--radius-lg);padding:var(--space-lg);box-shadow:var(--shadow-md)}.card-elevated{box-shadow:var(--shadow-lg)}.card-compact{padding:var(--space-md)}.card-center{text-align:center}.pin-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-lg);padding-bottom:60px;flex:1}.pin-header{text-align:center;margin-bottom:var(--space-2xl)}.pin-title{color:var(--color-primary);font-size:var(--font-size-3xl);font-weight:400;margin:0 0 var(--space-xs) 0;letter-spacing:.5px}.pin-subtitle{color:var(--color-primary);font-size:var(--font-size-base);margin:0;font-weight:300}.pin-row{display:flex;gap:var(--space-md);margin-bottom:var(--space-2xl)}.pin-box{width:56px;height:56px;border-radius:var(--radius-md);background-color:#fff3;border:2px solid rgb(71 171 243);display:flex;align-items:center;justify-content:center;transition:all var(--transition-slow);box-shadow:var(--shadow-md)}.pin-box-filled{background-color:#ffffff4d;border-color:#ffffff80;transform:scale(1.05)}.pin-dot{width:16px;height:16px;border-radius:var(--radius-full);background-color:var(--color-primary);box-shadow:var(--shadow-sm)}.keypad{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-md);width:100%;max-width:320px;margin-bottom:var(--space-xl)}.key-button{width:100%;aspect-ratio:1;min-height:72px;border-radius:var(--radius-full);background-color:#fffffff2;border:none;font-size:var(--font-size-2xl);font-weight:400;color:var(--color-primary);cursor:pointer;transition:all var(--transition-normal);box-shadow:var(--shadow-lg);-webkit-user-select:none;user-select:none;outline:none}.key-button:active{transform:scale(.95)}.key-empty{width:100%;aspect-ratio:1}.key-delete{width:100%;aspect-ratio:1;min-height:72px;border-radius:var(--radius-full);background-color:#fff3;border:none;color:var(--color-white);cursor:pointer;transition:all var(--transition-normal);display:flex;align-items:center;justify-content:center;-webkit-user-select:none;user-select:none;outline:none}.key-delete:active{transform:scale(.95)}.pin-hint{color:var(--color-primary);font-size:var(--font-size-sm);text-align:center;margin:0;font-weight:300}.amount-card{background-color:var(--color-surface);border-radius:var(--radius-lg);padding:var(--space-xl) var(--space-lg);box-shadow:var(--shadow-md)}.amount-label{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin:0 0 var(--space-xs) 0;font-weight:500;text-transform:uppercase;letter-spacing:.5px}.amount-display{font-size:var(--font-size-4xl);font-weight:700;color:var(--color-primary);margin:0 0 var(--space-xl) 0;letter-spacing:-1px}.slider-container{width:100%}.slider-labels{display:flex;justify-content:space-between;margin-top:var(--space-xs)}.slider-label{font-size:var(--font-size-xs);color:var(--color-text-hint);font-weight:500}.presets-section{background-color:var(--color-surface);border-radius:var(--radius-lg);padding:var(--space-lg);box-shadow:var(--shadow-md)}.presets-title{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin:0 0 var(--space-md) 0;font-weight:500;text-transform:uppercase;letter-spacing:.5px}.presets-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-sm)}.preset-button{background-color:var(--color-background);border:2px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-lg);font-size:var(--font-size-xl);font-weight:600;color:var(--color-text-primary);cursor:pointer;transition:all var(--transition-normal);outline:none}.preset-button:active{transform:scale(.95)}.preset-button-active{background-color:var(--color-primary-light);border-color:var(--color-primary);color:var(--color-primary);transform:scale(1.02)}.customer-info{display:flex;flex-direction:column;gap:var(--space-md);margin-top:var(--space-lg)}.info-row{display:flex;justify-content:space-between;align-items:center;padding:var(--space-md) 0;border-bottom:1px solid var(--color-border-light)}.info-row:last-child{border-bottom:none}.info-label{font-size:var(--font-size-base);color:var(--color-text-secondary)}.info-value{font-size:var(--font-size-lg);font-weight:600;color:var(--color-text-primary)}.success-circle{width:120px;height:120px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--color-success) 0%,#388E3C 100%);display:flex;align-items:center;justify-content:center;font-size:64px;color:var(--color-white);box-shadow:var(--shadow-xl);animation:successPulse .6s ease-out}.success-text{font-size:var(--font-size-2xl);font-weight:600;color:var(--color-text-primary);margin-top:var(--space-lg);text-align:center}.overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;animation:fadeIn var(--transition-slow) ease-out;z-index:999}.bottom-sheet{position:fixed;bottom:0;left:0;right:0;background-color:var(--color-surface);border-top-left-radius:var(--radius-xl);border-top-right-radius:var(--radius-xl);box-shadow:0 -4px 20px #00000026;animation:slideUp var(--transition-slow) cubic-bezier(.4,0,.2,1);z-index:1000;max-height:80vh;overflow:auto}.sheet-handle{width:40px;height:4px;background-color:var(--color-border);border-radius:2px;margin:var(--space-sm) auto}.sheet-content{padding:var(--space-lg) var(--space-lg) var(--space-xl)}.sheet-header{text-align:center;margin-bottom:var(--space-lg)}.sheet-icon{width:64px;height:64px;background-color:var(--color-primary-light);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;margin:0 auto var(--space-md)}.sheet-title{font-size:var(--font-size-2xl);font-weight:600;color:var(--color-text-primary);margin:0 0 var(--space-xs) 0}.sheet-subtitle{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin:0}.confirm-amount-card{background-color:var(--color-background);border-radius:var(--radius-md);padding:var(--space-lg);display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-lg)}.confirm-amount-label{font-size:var(--font-size-sm);color:var(--color-text-secondary);font-weight:500}.confirm-amount{font-size:var(--font-size-3xl);font-weight:700;color:var(--color-primary)}.sheet-actions{display:flex;flex-direction:column;gap:var(--space-sm)}#qr-reader{width:100%;max-width:500px;margin:0 auto;padding:var(--space-lg)}#qr-reader video{border-radius:var(--radius-xl);border:6px solid var(--color-primary);box-shadow:0 0 0 4px #1976d233}#qr-reader__dashboard_section{display:none!important}#qr-reader__scan_region{border-radius:var(--radius-xl)!important;border:6px solid var(--color-primary)!important;overflow:hidden;box-shadow:var(--shadow-xl),0 0 0 4px #1976d233;background:var(--color-white)}#qr-reader__scan_region video{border-radius:var(--radius-lg)!important;border:none!important}#qr-reader__camera_selection{margin-top:var(--space-md)}.qr-scanner-wrapper{background:var(--color-white);border-radius:var(--radius-xl);padding:var(--space-xl);box-shadow:var(--shadow-lg);margin:var(--space-lg)}.mt-1{margin-top:var(--space-xs)}.mt-2{margin-top:var(--space-md)}.mt-3{margin-top:var(--space-lg)}.mb-1{margin-bottom:var(--space-xs)}.mb-2{margin-bottom:var(--space-md)}.mb-3{margin-bottom:var(--space-lg)}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.text-primary{color:var(--color-primary)}.text-secondary{color:var(--color-text-secondary)}.text-muted{color:var(--color-text-hint)}.text-white{color:var(--color-white)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.w-full{width:100%}input[type=range]{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:transparent;cursor:pointer;width:100%}input[type=range]::-webkit-slider-track{background:#1976d233;height:6px;border-radius:3px}input[type=range]::-moz-range-track{background:#1976d233;height:6px;border-radius:3px}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:24px;height:24px;border-radius:var(--radius-full);background:var(--color-primary);box-shadow:var(--shadow-md);margin-top:-9px;cursor:pointer}input[type=range]::-moz-range-thumb{width:24px;height:24px;border-radius:var(--radius-full);background:var(--color-primary);box-shadow:var(--shadow-md);border:none;cursor:pointer}input[type=range]:focus{outline:none}input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.1)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}@keyframes shake{0%,to{transform:translate(0)}10%,30%,50%,70%,90%{transform:translate(-10px)}20%,40%,60%,80%{transform:translate(10px)}}@keyframes successPulse{0%{transform:scale(.8);opacity:0}50%{transform:scale(1.1)}to{transform:scale(1);opacity:1}}@keyframes screenEnter{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.screen-enter{animation:screenEnter var(--transition-slow) ease-out}.shake{animation:shake .5s}.loading{display:inline-block;width:40px;height:40px;border:4px solid var(--color-border);border-top-color:var(--color-primary);border-radius:var(--radius-full);animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{color:var(--color-text-secondary);font-size:var(--font-size-base);text-align:center;margin-top:var(--space-md)}@media (max-width: 480px){:root{--font-size-4xl: 40px;--font-size-3xl: 24px;--font-size-2xl: 20px}.keypad{gap:var(--space-sm)}.key-button{min-height:64px}.pin-box{width:48px;height:48px}}@media print{.app-bar,.btn,.back-button{display:none}.card{box-shadow:none;border:1px solid var(--color-border)}}*:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}@media (prefers-reduced-motion: reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}@media (prefers-contrast: high){:root{--color-border: #000000;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .3);--shadow-md: 0 2px 8px rgba(0, 0, 0, .4);--shadow-lg: 0 4px 12px rgba(0, 0, 0, .5)}}