:root{--color-primary: #FF6B9D;--color-secondary: #FFA94D;--color-accent: #FFD93D;--color-success: #6BCF7F;--color-info: #4ECDC4;--color-purple: #A78BFA;--color-sky: #7DD3FC;--bg-main: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--bg-card: rgba(255, 255, 255, .95);--bg-overlay: rgba(0, 0, 0, .5);--text-dark: #2D3748;--text-light: #FFFFFF;--text-muted: #718096;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .1);--shadow-md: 0 4px 16px rgba(0, 0, 0, .15);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .2);--shadow-fun: 0 4px 20px rgba(255, 107, 157, .4);--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--radius-sm: 8px;--radius-md: 16px;--radius-lg: 24px;--radius-xl: 32px;--radius-full: 9999px;--transition-fast: .15s ease-in-out;--transition-normal: .3s ease-in-out;--transition-slow: .5s ease-in-out}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Inter,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg-main);color:var(--text-dark);min-height:100vh;overflow-x:hidden}#root{min-height:100vh;display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2}h1{font-size:3rem;text-shadow:3px 3px 0 rgba(0,0,0,.1)}h2{font-size:2.25rem}h3{font-size:1.75rem}.btn{padding:var(--spacing-sm) var(--spacing-md);border:none;border-radius:var(--radius-full);font-size:1.125rem;font-weight:700;cursor:pointer;transition:all var(--transition-normal);box-shadow:var(--shadow-md);font-family:inherit;text-transform:uppercase;letter-spacing:.5px}.btn:hover{transform:translateY(-3px) scale(1.05);box-shadow:var(--shadow-lg)}.btn:active{transform:translateY(0) scale(.98)}.btn-primary{background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));color:var(--text-light)}.btn-success{background:linear-gradient(135deg,var(--color-success),var(--color-info));color:var(--text-light)}.btn-warning{background:linear-gradient(135deg,var(--color-accent),var(--color-secondary));color:var(--text-dark)}.btn-large{padding:var(--spacing-md) var(--spacing-xl);font-size:1.5rem}.btn-icon{width:60px;height:60px;padding:0;display:flex;align-items:center;justify-content:center;font-size:1.75rem}.card{background:var(--bg-card);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-md);transition:all var(--transition-normal)}.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.card-fun{border:4px solid transparent;background-clip:padding-box;position:relative}.card-fun:before{content:"";position:absolute;inset:0;border-radius:var(--radius-lg);padding:4px;background:linear-gradient(135deg,var(--color-primary),var(--color-accent),var(--color-info));-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes wiggle{0%,to{transform:rotate(0)}25%{transform:rotate(-5deg)}75%{transform:rotate(5deg)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@keyframes slideInUp{0%{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.bounce{animation:bounce 1s infinite}.wiggle{animation:wiggle .5s ease-in-out}.pulse{animation:pulse 2s infinite}.text-center{text-align:center}.mt-1{margin-top:var(--spacing-xs)}.mt-2{margin-top:var(--spacing-sm)}.mt-3{margin-top:var(--spacing-md)}.mt-4{margin-top:var(--spacing-lg)}.mb-1{margin-bottom:var(--spacing-xs)}.mb-2{margin-bottom:var(--spacing-sm)}.mb-3{margin-bottom:var(--spacing-md)}.mb-4{margin-bottom:var(--spacing-lg)}.p-1{padding:var(--spacing-xs)}.p-2{padding:var(--spacing-sm)}.p-3{padding:var(--spacing-md)}.p-4{padding:var(--spacing-lg)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-1{gap:var(--spacing-xs)}.gap-2{gap:var(--spacing-sm)}.gap-3{gap:var(--spacing-md)}.gap-4{gap:var(--spacing-lg)}.grid{display:grid}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}@media(max-width:768px){h1{font-size:2rem}.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}@media(max-width:480px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}.product-section{background:var(--bg-card);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-lg);height:fit-content}.section-title{text-align:center;margin-bottom:var(--spacing-lg);color:var(--color-primary);animation:bounce 2s infinite}.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:var(--spacing-md)}@media(orientation:portrait){.product-grid{max-height:900px;overflow-y:auto;padding-right:var(--spacing-sm)}}@media(orientation:landscape){.product-grid{max-height:520px;overflow-y:auto;padding-right:var(--spacing-sm)}}.product-grid::-webkit-scrollbar{width:8px}.product-grid::-webkit-scrollbar-track{background:#0000001a;border-radius:var(--radius-full)}.product-grid::-webkit-scrollbar-thumb{background:var(--color-primary);border-radius:var(--radius-full)}.product-card{background:linear-gradient(135deg,#fff,#f8f9fa);border-radius:var(--radius-md);text-align:center;cursor:pointer;transition:all var(--transition-normal);border:3px solid transparent;position:relative;overflow:hidden}.product-card:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,var(--color-primary),var(--color-accent));opacity:0;transition:opacity var(--transition-normal);z-index:0}.product-card:hover:before{opacity:.1}.product-card:hover{transform:translateY(-5px) scale(1.05);box-shadow:var(--shadow-fun);border-color:var(--color-primary)}.product-card:active{transform:translateY(0) scale(.95)}.product-emoji{font-size:3.5rem;animation:wiggle .5s ease-in-out;position:relative;z-index:1}.product-card:hover .product-emoji{animation:bounce .6s ease-in-out}.product-name{font-size:.95rem;font-weight:700;color:var(--text-dark);margin-bottom:var(--spacing-xs);position:relative;z-index:1}.product-price{font-size:1.25rem;font-weight:800;color:var(--color-success);margin-bottom:var(--spacing-sm);position:relative;z-index:1}.btn-add{width:90%;padding:var(--spacing-xs) var(--spacing-sm);font-size:.975rem;position:relative;z-index:1}@media(max-width:768px){.product-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:var(--spacing-sm)}.product-emoji{font-size:2.5rem}}.cashier-section{background:var(--bg-card);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-lg);height:fit-content;min-height:400px;display:flex;flex-direction:column}.receipt-container{flex:1;display:flex;flex-direction:column}.empty-cart{text-align:center;padding:var(--spacing-xl) 0;color:var(--text-muted)}.empty-emoji{font-size:5rem;margin-bottom:var(--spacing-md);opacity:.5;animation:pulse 2s infinite}.empty-subtitle{font-size:.95rem;margin-top:var(--spacing-xs)}.receipt-items{flex:1;max-height:620px;overflow-y:auto;margin-bottom:var(--spacing-md);padding-right:var(--spacing-sm)}@media(orientation:portrait){.receipt-items{max-height:470px}}@media(orientation:landscape){.receipt-items{max-height:315px}}.receipt-items::-webkit-scrollbar{width:8px}.receipt-items::-webkit-scrollbar-track{background:#0000001a;border-radius:var(--radius-full)}.receipt-items::-webkit-scrollbar-thumb{background:var(--color-info);border-radius:var(--radius-full)}.receipt-item{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-md);margin-bottom:var(--spacing-sm);background:linear-gradient(135deg,#f8f9fa,#fff);border-radius:var(--radius-md);border-left:4px solid var(--color-info);transition:all var(--transition-normal);animation:slideInUp .3s ease-out}.receipt-item:hover{transform:translate(5px);box-shadow:var(--shadow-md)}.item-info{display:flex;align-items:center;gap:var(--spacing-sm);flex:1}.item-emoji{font-size:2rem}.item-details{display:flex;flex-direction:column;gap:.25rem}.item-name{font-weight:700;color:var(--text-dark)}.item-calculation{font-size:.875rem;color:var(--color-success);font-weight:600;font-family:Verdana,monospace}.item-actions{display:flex;align-items:center;gap:var(--spacing-sm)}.item-quantity{font-size:1.5rem;font-weight:800;color:var(--color-primary);min-width:30px;text-align:center}.btn-remove{width:36px;height:36px;border:none;border-radius:var(--radius-full);background:linear-gradient(135deg,#ff6b6b,#ee5a52);color:#fff;font-size:1.5rem;font-weight:700;cursor:pointer;transition:all var(--transition-normal);box-shadow:var(--shadow-sm);display:flex;align-items:center;justify-content:center;line-height:1}.btn-remove:hover{transform:scale(1.1);box-shadow:var(--shadow-md)}.btn-remove:active{transform:scale(.95)}.receipt-total{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-xs);margin:var(--spacing-md) 0;background:linear-gradient(135deg,var(--color-accent),var(--color-secondary));border-radius:var(--radius-md);animation:pulse 2s infinite;box-shadow:var(--shadow-md)}.total-label{font-size:1.75rem;font-weight:800;color:var(--text-dark);text-transform:uppercase}.total-amount{font-size:2.5rem;font-weight:900;color:var(--text-dark);font-family:Courier New,monospace;text-shadow:2px 2px 0 rgba(255,255,255,.5)}.cashier-actions{display:grid;grid-template-columns:1fr 2fr;gap:var(--spacing-md)}.cashier-actions .btn{padding:var(--spacing-md);font-size:1.25rem}@media(max-width:768px){.cashier-actions{grid-template-columns:1fr}.total-amount{font-size:2rem}}.modal-overlay{position:fixed;inset:0;background:var(--bg-overlay);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .3s ease-out;padding:var(--spacing-md)}.payment-modal{background:var(--bg-card);border-radius:var(--radius-xl);padding:var(--spacing-xl);max-width:600px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px #0000004d;animation:slideInUp .4s ease-out}.modal-title{text-align:center;color:var(--color-primary);margin-bottom:var(--spacing-lg);animation:bounce 1s ease-in-out}.payment-info{background:linear-gradient(135deg,#e0f2fe,#dbeafe);border-radius:var(--radius-md);padding:var(--spacing-sm);margin-bottom:var(--spacing-sm)}.info-row{display:flex;justify-content:space-between;align-items:center;font-size:1.25rem;margin-bottom:var(--spacing-sm)}.info-row:last-child{margin-bottom:0}.amount-highlight{font-size:2rem;font-weight:800;color:var(--color-primary);font-family:Courier New,monospace}.amount-input{font-size:2rem;font-weight:800;color:var(--color-success);font-family:Courier New,monospace;min-width:150px;text-align:right}.money-label{font-weight:700;margin-bottom:var(--spacing-sm);color:var(--text-dark);font-size:1.125rem}.money-buttons{margin-bottom:var(--spacing-sm)}.money-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:var(--spacing-xs)}.money-grid--coins{grid-template-columns:repeat(6,1fr)}.money-btn{background:linear-gradient(135deg,#10b981,#09543c);color:#fff;border:none;border-radius:var(--radius-md);padding:var(--spacing-xs);cursor:pointer;transition:all var(--transition-normal);box-shadow:var(--shadow-md);display:flex;flex-direction:column;align-items:center;gap:.25rem;position:relative}.money-btn--coin{background:linear-gradient(135deg,#f59e0b,#9d4304)}.money-btn:hover{transform:translateY(-3px) scale(1.05);box-shadow:var(--shadow-lg)}.money-btn:active{transform:scale(.95)}.bill-emoji{font-size:2rem}.bill-amount{font-weight:900;font-size:1.35rem}.coin-badge{position:absolute;top:6px;right:6px;background:#111827;color:#fff;border-radius:999px;padding:2px 6px;font-size:.75rem;font-weight:800;min-width:22px;text-align:center;box-shadow:0 4px 10px #00000040}.numpad{margin-bottom:var(--spacing-lg)}.numpad-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-sm)}.numpad-btn{background:linear-gradient(135deg,#fff,#f1f5f9);border:2px solid var(--color-info);border-radius:var(--radius-md);padding:var(--spacing-sm);font-size:2rem;font-weight:700;cursor:pointer;transition:all var(--transition-normal);box-shadow:var(--shadow-sm);font-family:inherit}.numpad-btn:hover{transform:scale(1.05);background:var(--color-sky);color:#fff;border-color:var(--color-info)}.numpad-btn:active{transform:scale(.95)}.numpad-backspace{background:linear-gradient(135deg,#fecaca,#f87171);border-color:#ef4444;color:#fff}.change-display{background:linear-gradient(135deg,var(--color-primary),var(--color-info));border-radius:var(--radius-lg);padding:var(--spacing-sm);margin-bottom:var(--spacing-sm);animation:slideInUp .5s ease-out}.change-calculation{text-align:center;color:#fff}.calculation-step{font-size:2rem;font-weight:700;margin-bottom:var(--spacing-sm);text-shadow:3px 3px 0 rgba(0,0,0,.2);font-family:Tahoma,monospace}.change-amount{font-size:3rem;font-weight:900;margin:var(--spacing-md) 0;text-shadow:3px 3px 0 rgba(0,0,0,.2);animation:pulse 1.5s infinite}.change-label{font-size:1.25rem;font-weight:700;animation:bounce 1s infinite}.modal-actions{display:grid;grid-template-columns:1fr 1fr 1fr;gap:var(--spacing-md)}.modal-actions .btn{padding:var(--spacing-md);font-size:1rem}@media(max-width:640px){.money-grid,.money-grid--coins{grid-template-columns:repeat(3,1fr)}.modal-actions{grid-template-columns:1fr}.bill-emoji{font-size:1.5rem}.bill-amount{font-size:1.15rem}}.success-overlay{position:fixed;inset:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:2000;animation:fadeIn .3s ease-out;padding:var(--spacing-md)}.receipt-card{background:#fff;color:#1f2937;width:min(420px,100%);border-radius:12px;padding:var(--spacing-lg);box-shadow:0 20px 60px #00000059;font-family:Courier New,Courier,monospace;animation:slideInUp .4s ease-out;position:relative}.receipt-card:before,.receipt-card:after{content:"";position:absolute;left:12px;right:12px;height:1px;border-top:1px dashed #cbd5f5}.receipt-card:before{top:12px}.receipt-card:after{bottom:12px}.receipt-header{text-align:center;margin-bottom:var(--spacing-md)}.receipt-title{font-size:1.35rem;font-weight:800;letter-spacing:1px}.receipt-subtitle{font-size:.95rem;margin-top:.2rem}.receipt-meta{font-size:.9rem;display:grid;gap:.3rem;margin-bottom:var(--spacing-md)}.receipt-meta-ticket{font-weight:700;font-size:1rem}.receipt-divider{border-top:1px dashed #cbd5f5;margin:var(--spacing-sm) 0}.receipt-items{display:grid;font-size:1rem}.receipt-item-name{font-weight:700}.receipt-item-row{display:flex;justify-content:space-between;font-size:1rem;color:#374151}.receipt-totals{display:grid;gap:.4rem;font-size:1rem}.receipt-total-row{display:flex;justify-content:space-between;font-weight:700}.receipt-total-paid{display:flex;justify-content:space-between;font-weight:700;color:#8a2be2}.receipt-change{color:#047857}.receipt-footer{text-align:center;font-size:1rem;font-weight:700;margin-top:var(--spacing-sm)}.receipt-close{margin-top:var(--spacing-md);width:100%;padding:var(--spacing-sm);border:none;border-radius:10px;background:#111827;color:#fff;font-weight:700;font-size:1rem;cursor:pointer;transition:all var(--transition-normal)}.receipt-close:hover{transform:translateY(-2px);box-shadow:0 8px 20px #00000040}.success-content{text-align:center;animation:bounce .6s ease-out}.success-emoji{font-size:8rem;margin-bottom:var(--spacing-lg);animation:bounce 1s infinite}.success-title{color:var(--color-accent);font-size:4rem;margin-bottom:var(--spacing-md);text-shadow:4px 4px 0 rgba(0,0,0,.3);animation:pulse 1s infinite}.success-message{color:#fff;font-size:2rem;margin-bottom:var(--spacing-lg)}.success-stars{font-size:3rem;animation:wiggle .5s ease-in-out infinite}@media(max-width:480px){.receipt-card{padding:var(--spacing-md)}.receipt-title{font-size:1.2rem}}.welcome-overlay{position:fixed;inset:0;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;z-index:3000;animation:fadeIn .5s ease-out;padding:var(--spacing-md)}.welcome-container{background:var(--bg-card);border-radius:var(--radius-xl);padding:var(--spacing-xl);max-width:600px;width:100%;text-align:center;box-shadow:0 20px 60px #0000004d;animation:slideInUp .6s ease-out}.welcome-emoji{font-size:6rem;margin-bottom:var(--spacing-md);animation:bounce 2s infinite}.welcome-title{color:var(--color-primary);margin-bottom:var(--spacing-sm);font-size:2.5rem}.welcome-subtitle{color:var(--text-muted);font-size:1.25rem;margin-bottom:var(--spacing-xl)}.welcome-form{margin-bottom:var(--spacing-xl)}.welcome-label{display:block;font-size:1.5rem;font-weight:700;color:var(--text-dark);margin-bottom:var(--spacing-md)}.welcome-input{width:100%;padding:var(--spacing-md);font-size:1.5rem;font-weight:600;border:3px solid var(--color-info);border-radius:var(--radius-lg);margin-bottom:var(--spacing-lg);font-family:inherit;text-align:center;transition:all var(--transition-normal);background:#fff}.welcome-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 4px #ff6b9d33;transform:scale(1.02)}.welcome-input::placeholder{color:var(--text-muted);opacity:.6}.welcome-btn{width:100%;font-size:1.5rem!important;padding:var(--spacing-lg) var(--spacing-xl)!important}.welcome-btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.welcome-features{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-md);margin-top:var(--spacing-lg)}.feature-item{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-md);background:linear-gradient(135deg,#f8f9fa,#e9ecef);border-radius:var(--radius-md);font-weight:600;color:var(--text-dark)}.feature-icon{font-size:2rem}@media(max-width:640px){.welcome-title{font-size:2rem}.welcome-features{grid-template-columns:1fr}.welcome-input{font-size:1.25rem}}.app-container{min-height:100vh;display:flex;flex-direction:column;padding:var(--spacing-md);animation:fadeIn .5s ease-in-out}.app-header{text-align:center;margin-bottom:var(--spacing-lg);animation:slideInUp .6s ease-out}.app-title{color:var(--text-light);margin-bottom:var(--spacing-sm);text-shadow:4px 4px 0 rgba(0,0,0,.2)}.app-subtitle{color:var(--color-accent);font-size:1.25rem;font-weight:600}.app-welcome{color:var(--text-light);font-size:1.35rem;font-weight:700;margin-top:var(--spacing-xs);text-shadow:2px 2px 0 rgba(0,0,0,.2)}.main-container{flex:1;display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-lg);max-width:1400px;width:100%;margin:0 auto}.app-footer{margin-top:var(--spacing-lg);padding:var(--spacing-sm) var(--spacing-md);display:flex;justify-content:center;gap:var(--spacing-md);color:var(--text-light);font-weight:600;font-size:1rem;text-align:center}.app-footer-date{opacity:.9}@media(max-width:968px){.main-container{grid-template-columns:1fr}.app-footer{flex-direction:column}}