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10px;height:5px;opacity:.9}.Toastify__progress-bar--info{background:linear-gradient(90deg,#667eea,#5568d3);background:var(--toastify-color-progress-info)}.Toastify__progress-bar--success{background:linear-gradient(90deg,#48bb78,#38a169);background:var(--toastify-color-progress-success)}.Toastify__progress-bar--warning{background:linear-gradient(90deg,#ed8936,#dd6b20);background:var(--toastify-color-progress-warning)}.Toastify__progress-bar--error{background:linear-gradient(90deg,#f56565,#e53e3e);background:var(--toastify-color-progress-error)}.Toastify__close-button{color:#1a202c;opacity:.6;transition:opacity .2s}.Toastify__close-button:hover{opacity:1}.Toastify__toast-body{margin:0;padding:0}@keyframes toastSlideIn{0%{opacity:0;transform:translate3d(110%,0,0)}to{opacity:1;transform:translateZ(0)}}@keyframes toastSlideOut{0%{opacity:1;transform:translateZ(0)}to{opacity:0;transform:translate3d(110%,0,0)}}.Toastify__toast--top-right{animation:toastSlideIn .4s cubic-bezier(.4,0,.2,1)}.Toastify__toast--top-right.Toastify__toast--close{animation:toastSlideOut .3s cubic-bezier(.4,0,.2,1)}@media only screen and (max-width:480px){.Toastify__toast-container{left:0;margin:0;padding:0;right:0;width:100vw}.Toastify__toast{border-radius:0;margin-bottom:0;width:100%}}.login-container{align-items:center;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;justify-content:center;min-height:100vh;overflow:hidden;padding:var(--space-4);position:relative}.login-container:before{animation:pulse 4s ease-in-out infinite;background:radial-gradient(circle,#ffffff1a 0,#0000 70%);content:"";height:100%;position:absolute;right:-50%;top:-50%;width:100%}.login-card{animation:fadeIn .5s ease-out;background:#fff;border-radius:var(--radius-xl);box-shadow:var(--shadow-2xl);max-width:440px;padding:var(--space-8);position:relative;width:100%;z-index:1}.login-title{-webkit-text-fill-color:#0000;background:var(--primary-gradient);-webkit-background-clip:text;background-clip:text;font-size:var(--text-3xl);font-weight:800;margin:0 0 var(--space-2) 0;text-align:center}.login-subtitle{color:var(--gray-600);font-size:var(--text-base);margin:0 0 var(--space-8) 0;text-align:center}.login-form{margin-bottom:var(--space-6)}.form-group{margin-bottom:var(--space-5)}.form-group label{color:var(--gray-700);display:block;font-size:var(--text-sm);font-weight:600;margin-bottom:var(--space-2);transition:color var(--transition-base)}.form-group input{background:#fff;border:2px solid var(--gray-200);border-radius:var(--radius-lg);box-sizing:border-box;font-size:var(--text-base);padding:var(--space-4);transition:all var(--transition-base);width:100%}.form-group input:focus{border-color:var(--primary-color);box-shadow:0 0 0 4px #667eea1a;outline:none;transform:translateY(-2px)}.form-group input:disabled{background-color:var(--gray-100);cursor:not-allowed}.login-button{background:var(--primary-gradient);border:none;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);color:#fff;cursor:pointer;font-size:var(--text-lg);font-weight:700;overflow:hidden;padding:var(--space-4);position:relative;transition:all var(--transition-base);width:100%}.login-button:before{background:linear-gradient(90deg,#0000,#ffffff4d,#0000);content:"";height:100%;left:-100%;position:absolute;top:0;transition:left .5s;width:100%}.login-button:hover:not(:disabled):before{left:100%}.login-button:hover:not(:disabled){box-shadow:var(--shadow-2xl);transform:translateY(-3px)}.login-button:active:not(:disabled){transform:translateY(-1px)}.login-button:disabled{cursor:not-allowed;opacity:.6;transform:none}.login-error{align-items:center;animation:slideInRight .3s ease-out;background:var(--error-bg);border-left:4px solid var(--error-color);border-radius:var(--radius-md);color:var(--error-color);display:flex;font-size:var(--text-sm);gap:var(--space-2);margin-bottom:var(--space-5);padding:var(--space-4)}.login-demo-info{background:linear-gradient(135deg,#f0f7ff,#e0f2fe);border:2px solid #667eea33;border-radius:var(--radius-lg);margin-top:var(--space-6);padding:var(--space-5)}.demo-header{align-items:center;color:var(--primary-color);display:flex;font-size:var(--text-base);font-weight:700;gap:var(--space-2);margin-bottom:var(--space-4)}.demo-icon{font-size:1.25rem}.demo-credentials{display:flex;flex-direction:column;gap:var(--space-2);margin-bottom:var(--space-3)}.credential-item{align-items:center;display:flex;font-size:var(--text-sm);gap:var(--space-2)}.credential-label{color:var(--gray-600);font-weight:500;min-width:80px}.credential-value{background:#667eea26;border-radius:var(--radius-sm);color:var(--primary-color);cursor:pointer;flex:1 1;font-family:var(--font-mono);font-size:var(--text-xs);font-weight:600;padding:var(--space-1) var(--space-3);text-align:center;transition:all var(--transition-fast)}.credential-value:hover{background:#667eea40;transform:scale(1.02)}.demo-divider{background:#667eea33;height:1px;margin:var(--space-3) 0}.demo-note{align-items:center;background:#667eea1a;border-radius:var(--radius-md);color:var(--gray-600);display:flex;font-size:var(--text-xs);gap:var(--space-2);margin-top:var(--space-4);padding:var(--space-3)}.note-icon{font-size:1rem}.login-footer{border-top:1px solid var(--gray-200);margin-top:var(--space-6);padding-top:var(--space-4);text-align:center}.footer-links{gap:var(--space-3);justify-content:center;margin-bottom:var(--space-2)}.footer-links,.footer-links a{align-items:center;display:flex}.footer-links a{color:var(--primary-color);font-size:var(--text-sm);font-weight:500;gap:var(--space-1);text-decoration:none;transition:all var(--transition-fast)}.footer-links a:hover{color:var(--secondary-color);transform:translateY(-1px)}.footer-separator{color:var(--gray-300);font-size:var(--text-sm)}.footer-version{color:var(--gray-500);display:block;font-size:var(--text-sm)}@media (max-width:480px){.login-card{padding:var(--space-6) var(--space-4)}.login-title{font-size:var(--text-2xl)}.login-button{font-size:var(--text-base);padding:var(--space-3)}.login-demo-info{padding:var(--space-4)}}@media (min-width:768px){.login-card{padding:var(--space-10)}}.dashboard-container{background:#f7fafc;min-height:100vh}.dashboard-header{background:#fff;border-bottom:1px solid #e2e8f0;box-shadow:0 2px 8px #0000000d;position:-webkit-sticky;position:sticky;top:0;z-index:100}.dashboard-header>div:first-child{align-items:center;display:flex;justify-content:space-between;margin:0 auto;max-width:1200px;padding:var(--space-4)}.dashboard-header h1{color:var(--gray-800);font-size:var(--text-2xl);font-weight:700;margin:0 0 4px}.dashboard-header p{color:var(--gray-600);font-size:var(--text-sm);margin:0}.logout-btn{background:var(--error-color);border:none;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);color:#fff;cursor:pointer;font-weight:600;padding:var(--space-3) var(--space-5);transition:all var(--transition-base)}.logout-btn:hover{background:#e53e3e;box-shadow:var(--shadow-lg);transform:translateY(-2px)}.dashboard-stats{grid-gap:var(--space-4);display:grid;gap:var(--space-4);grid-template-columns:1fr;margin:var(--space-6) auto;max-width:1200px;padding:0 var(--space-4)}.stat-card{background:#fff;border-left:4px solid var(--primary-color);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);padding:var(--space-6);transition:all var(--transition-base)}.stat-card:hover{box-shadow:var(--shadow-xl);transform:translateY(-2px)}.stat-value{color:var(--gray-800);font-size:var(--text-4xl);margin-bottom:var(--space-2)}.stat-label{color:var(--gray-600);font-size:var(--text-sm);font-weight:600;letter-spacing:.5px;text-transform:uppercase}.dashboard-menu{grid-gap:var(--space-4);display:grid;gap:var(--space-4);grid-template-columns:1fr;margin:0 auto;max-width:1200px;padding:0 var(--space-4) var(--space-6)}.menu-item{background:#fff;border-left:4px solid;border-radius:var(--radius-xl);box-shadow:var(--shadow-md);cursor:pointer;overflow:hidden;padding:var(--space-6);position:relative;transition:all var(--transition-base)}.menu-item:before{background:linear-gradient(135deg,#0000,#00000005);content:"";height:100%;left:0;opacity:0;position:absolute;top:0;transition:opacity var(--transition-base);width:100%}.menu-item:hover:before{opacity:1}.menu-item:hover{box-shadow:var(--shadow-2xl);transform:translateY(-4px)}.menu-item-title{color:var(--gray-800);font-size:var(--text-xl);font-weight:700;margin-bottom:var(--space-2);position:relative;z-index:1}.menu-item-description{color:var(--gray-600);font-size:var(--text-sm);position:relative;z-index:1}.dashboard-info{background:linear-gradient(135deg,#667eea0d,#764ba20d);border-left:4px solid var(--primary-color);border-radius:var(--radius-xl);margin:0 auto var(--space-6);margin-left:var(--space-4);margin-right:var(--space-4);max-width:1200px;padding:var(--space-5)}.dashboard-info p{color:var(--gray-700);font-size:var(--text-sm);margin:var(--space-2) 0}@media (min-width:640px){.dashboard-stats{grid-template-columns:repeat(3,1fr)}}@media (min-width:768px){.dashboard-menu{grid-template-columns:repeat(2,1fr)}.dashboard-info,.dashboard-menu,.dashboard-stats{padding-left:var(--space-6);padding-right:var(--space-6)}}@media (min-width:1024px){.dashboard-menu{grid-template-columns:repeat(3,1fr)}}@media (max-width:768px){.dashboard-header>div:first-child{align-items:flex-start;flex-direction:column;gap:var(--space-4)}.logout-btn{width:100%}.dashboard-menu{grid-template-columns:1fr}}.modal-overlay{align-items:center;animation:fadeIn .2s ease-out;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0009;bottom:0;display:flex;justify-content:center;left:0;padding:var(--space-4);position:fixed;right:0;top:0;z-index:9999}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-container{animation:slideUp .3s ease-out;background:#fff;border-radius:var(--radius-xl);box-shadow:0 25px 50px -12px #00000040;display:flex;flex-direction:column;max-height:90vh;position:relative;width:100%}@keyframes slideUp{0%{opacity:0;transform:translateY(20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.modal-small{max-width:400px}.modal-medium{max-width:600px}.modal-large{max-width:900px}.modal-full{max-width:95vw}.modal-header{align-items:center;border-bottom:2px solid var(--gray-100);display:flex;flex-shrink:0;justify-content:space-between;padding:var(--space-6)}.modal-title{-webkit-text-fill-color:#0000;background:var(--primary-gradient);-webkit-background-clip:text;background-clip:text;color:var(--gray-800);font-size:var(--text-2xl);font-weight:800;margin:0}.modal-close{align-items:center;background:var(--gray-100);border:none;border-radius:var(--radius-lg);color:var(--gray-600);cursor:pointer;display:flex;flex-shrink:0;font-size:var(--text-2xl);height:40px;justify-content:center;transition:all var(--transition-base);width:40px}.modal-close:hover{background:var(--error-bg);color:var(--error-color);transform:rotate(90deg)}.modal-body{flex:1 1;overflow-y:auto;padding:var(--space-6)}.modal-body::-webkit-scrollbar{width:8px}.modal-body::-webkit-scrollbar-track{background:var(--gray-100);border-radius:var(--radius-full)}.modal-body::-webkit-scrollbar-thumb{background:var(--gray-300);border-radius:var(--radius-full)}.modal-body::-webkit-scrollbar-thumb:hover{background:var(--gray-400)}@media (max-width:640px){.modal-overlay{align-items:flex-end;padding:0}.modal-container{animation:slideUpMobile .3s ease-out;border-radius:var(--radius-xl) var(--radius-xl) 0 0;max-height:95vh;max-width:100%!important}@keyframes slideUpMobile{0%{transform:translateY(100%)}to{transform:translateY(0)}}.modal-header{padding:var(--space-4)}.modal-title{font-size:var(--text-xl)}.modal-body{padding:var(--space-4)}}@media (min-width:641px) and (max-width:1024px){.modal-small{max-width:90vw}.modal-medium{max-width:85vw}.modal-large{max-width:90vw}}.btn{border-radius:var(--radius-lg);display:inline-flex;font-family:var(--font-sans);font-size:var(--text-base);font-weight:700;gap:var(--space-2);overflow:hidden;padding:var(--space-3) var(--space-6);position:relative;text-decoration:none;transition:all var(--transition-base);-webkit-user-select:none;user-select:none;white-space:nowrap}.btn:before{background:#ffffff4d;border-radius:50%;content:"";height:0;left:50%;position:absolute;top:50%;transform:translate(-50%,-50%);transition:width .6s,height .6s;width:0}.btn:hover:before{height:300px;width:300px}.btn-icon,.btn-text{position:relative;z-index:1}.btn-icon{align-items:center;display:flex;font-size:1.25em}.btn-primary{background:var(--primary-gradient);box-shadow:0 4px 12px #667eea4d;color:#fff}.btn-primary:hover:not(:disabled){box-shadow:0 8px 20px #667eea66;transform:translateY(-2px)}.btn-secondary{background:var(--secondary-color);box-shadow:0 4px 12px #48bb784d;color:#fff}.btn-secondary:hover:not(:disabled){background:var(--secondary-dark);box-shadow:0 8px 20px #48bb7866;transform:translateY(-2px)}.btn-outline{background:#fff;border:2px solid var(--primary-color);box-shadow:0 2px 8px #0000000d;color:var(--primary-color)}.btn-outline:hover:not(:disabled){background:var(--primary-color);color:#fff;transform:translateY(-2px)}.btn-danger{background:var(--error-color);box-shadow:0 4px 12px #f565654d;color:#fff}.btn-danger:hover:not(:disabled){background:#e53e3e;box-shadow:0 8px 20px #f5656566;transform:translateY(-2px)}.btn-ghost{background:#0000;border:none;box-shadow:none;color:var(--gray-700)}.btn-ghost:hover:not(:disabled){background:var(--gray-100)}.btn-small{border-radius:var(--radius-md);font-size:var(--text-sm);padding:var(--space-2) var(--space-4)}.btn-medium{font-size:var(--text-base);padding:var(--space-3) var(--space-6)}.btn-large{border-radius:var(--radius-xl);font-size:var(--text-lg);padding:var(--space-4) var(--space-8)}.btn-full-width{width:100%}.btn:disabled{cursor:not-allowed;opacity:.5;transform:none!important}.btn-loading{opacity:.8;pointer-events:none}.btn-spinner{animation:spin .8s linear infinite;border:2px solid #ffffff4d;height:16px;position:relative;width:16px;z-index:1}@media (max-width:640px){.btn{font-size:var(--text-sm);padding:var(--space-3) var(--space-5)}.btn-large{font-size:var(--text-base);padding:var(--space-4) var(--space-6)}}.card{border:1px solid #0000000a;border-radius:var(--radius-xl);box-shadow:var(--shadow-md);transition:all var(--transition-base)}.card,.card-default{background:#fff}.card-gradient{background:var(--primary-gradient);color:#fff}.card-outlined{background:#fff;border:2px solid var(--gray-200);box-shadow:none}.card-elevated{box-shadow:var(--shadow-xl)}.card-padding-none{padding:0}.card-padding-small{padding:var(--space-4)}.card-padding-medium{padding:var(--space-6)}.card-padding-large{padding:var(--space-8)}.card-hoverable:hover{box-shadow:var(--shadow-xl);transform:translateY(-2px)}.card-clickable{cursor:pointer}.card-clickable:hover{box-shadow:var(--shadow-xl);transform:translateY(-4px)}.card-clickable:active{transform:translateY(-2px)}@media (max-width:640px){.card-padding-medium{padding:var(--space-4)}.card-padding-large{padding:var(--space-6)}}.payment-container{background:linear-gradient(135deg,#f5f7fa,#e8ecf1);min-height:100vh;position:relative}.payment-header{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fff;border-bottom:1px solid #00000014;box-shadow:0 2px 12px #0000000a;position:-webkit-sticky;position:sticky;top:0;z-index:100}.header-content{gap:1.5rem;padding:1.25rem 1.5rem}.back-btn{background:#fff;border:2px solid #e2e8f0;border-radius:12px;color:#4a5568;font-size:.9375rem;font-weight:600;padding:.625rem 1.25rem;transition:all .2s ease}.back-btn:hover{background:#f7fafc;border-color:#cbd5e0}.back-icon{transition:transform .2s}.back-btn:hover .back-icon{transform:translateX(-4px)}.title-icon{align-items:center;border-radius:16px;box-shadow:0 8px 16px #667eea4d;display:flex;font-size:1.75rem;height:56px;justify-content:center;width:56px}.header-title h1,.title-icon{background:linear-gradient(135deg,#667eea,#764ba2)}.header-title h1{-webkit-text-fill-color:#0000;-webkit-background-clip:text;background-clip:text;font-weight:800}.header-title p{color:#718096;font-size:.875rem;font-weight:500}.header-badge{align-items:center;background:linear-gradient(135deg,#667eea1a,#764ba21a);border:2px solid #667eea33;border-radius:12px;color:#667eea;display:flex;font-size:.9375rem;font-weight:600;gap:.625rem;padding:.625rem 1.25rem}.badge-icon{font-size:1.25rem}.payment-content{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:1fr;margin:0 auto;max-width:1400px;padding:2rem 1.5rem}.cart-panel,.nfc-panel,.products-panel{background:#fff;border:1px solid #0000000a;border-radius:20px;box-shadow:0 4px 24px #0000000f;padding:2rem;transition:all .3s ease}.cart-panel:hover,.nfc-panel:hover,.products-panel:hover{box-shadow:0 8px 32px #00000014;transform:translateY(-2px)}.panel-header{border-bottom:2px solid #f7fafc;gap:1rem;margin-bottom:1.75rem;padding-bottom:1.25rem}.step-badge{background:linear-gradient(135deg,#667eea,#764ba2);box-shadow:0 4px 12px #667eea4d}.panel-title{color:#2d3748;flex:1 1;font-size:1.375rem;gap:.75rem}.cart-count{align-items:center;background:#f56565;border-radius:12px;color:#fff;display:inline-flex;font-size:.75rem;font-weight:700;height:24px;justify-content:center;margin-left:.5rem;min-width:24px;padding:0 .5rem}.scan-area{padding:3rem 1.5rem}.scan-btn{background:linear-gradient(135deg,#667eea,#764ba2);border:none;box-shadow:0 12px 32px #667eea4d;overflow:hidden;position:relative;transition:all .3s ease}.scan-btn:before{background:radial-gradient(circle,#ffffff4d 0,#0000 70%);content:"";height:200%;left:-50%;opacity:0;position:absolute;top:-50%;transition:opacity .3s;width:200%}.scan-btn:hover:before{opacity:1}.scan-btn:hover{box-shadow:0 16px 48px #667eea66}.scan-icon-wrapper{display:inline-block;margin-bottom:1.5rem}.scan-rings{height:120px;position:relative;width:120px}.ring{border:3px solid #ffffff4d;left:50%;top:50%;transform:translate(-50%,-50%)}.ring-1{height:80px;width:80px}.ring-2{animation-delay:.3s;height:100px;width:100px}.ring-3{animation-delay:.6s;height:120px;width:120px}.scan-icon{filter:drop-shadow(0 4px 8px rgba(0,0,0,.2));left:50%;position:absolute;top:50%;transform:translate(-50%,-50%)}.scan-text{color:#fff;display:block;font-size:1.25rem;margin-bottom:.5rem}.scan-hint{color:#ffffffe6;display:block;font-size:.9375rem;font-weight:500}.scanning-state{padding:3rem 1.5rem}.scanning-animation{display:inline-block;margin-bottom:2rem}.pulse-rings{height:140px;position:relative;width:140px}.pulse-ring{animation:pulseAnimation 1.5s ease-out infinite;border:4px solid #667eea;height:100%;left:50%;top:50%;transform:translate(-50%,-50%);width:100%}@keyframes pulseAnimation{0%{opacity:1;transform:translate(-50%,-50%) scale(.5)}to{opacity:0;transform:translate(-50%,-50%) scale(1.5)}}.nfc-icon-animated{font-size:4rem;left:50%;top:50%;transform:translate(-50%,-50%)}.scanning-state h3{font-size:1.5rem}.scanning-state p{font-size:1rem}.progress-dots span{background:#667eea;height:10px;width:10px}.student-card{border-radius:20px;box-shadow:0 12px 32px #667eea4d;padding:2rem}.student-card:before{border-radius:50%;height:300px;right:-30%;width:300px}.card-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:1.5rem;position:relative}.student-avatar{background:#ffffff40;border:3px solid #ffffff80;box-shadow:0 8px 16px #00000026;color:#fff;font-size:1.75rem;font-weight:800;height:72px;width:72px}.check-badge{animation:checkPop .4s ease-out;background:#48bb78;box-shadow:0 4px 12px #48bb7866;font-size:1.5rem;height:40px;width:40px}@keyframes checkPop{0%{transform:scale(0)}50%{transform:scale(1.2)}to{transform:scale(1)}}.card-body{margin-bottom:1.5rem;position:relative}.student-name{color:#fff;font-weight:800;margin:0 0 1.25rem}.student-details{gap:.875rem}.detail-item{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff26;border:1px solid #fff3;border-radius:12px;gap:.75rem;padding:.875rem 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