@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";.landing-page{min-height:100vh;background:linear-gradient(135deg,#0f172a,#1e293b,#0f172a);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:#f1f5f9;overflow-x:hidden}.hero-section{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem;position:relative;overflow:hidden}.hero-background{position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 20% 50%,rgba(96,165,250,.08) 0%,transparent 50%),radial-gradient(circle at 80% 20%,rgba(167,139,250,.06) 0%,transparent 50%),radial-gradient(circle at 50% 80%,rgba(245,158,11,.04) 0%,transparent 50%);z-index:-1}.hero-container{max-width:1200px;margin:0 auto;padding:0 2rem;display:grid;grid-template-columns:1fr;gap:4rem;align-items:center}@media (min-width: 992px){.hero-container{grid-template-columns:1fr 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rgba(255,255,255,.1)}.hero-stat{text-align:left}.hero-stat-number{font-size:2rem;font-weight:800;background:linear-gradient(135deg,#60a5fa,#a78bfa);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:.25rem}.hero-stat-label{font-size:.875rem;color:#94a3b8;font-weight:500}.hero-visual{position:relative}.hero-card{background:#ffffff0d;border-radius:1.5rem;padding:2rem;box-shadow:0 20px 60px #0000004d;position:relative;overflow:hidden;border:1px solid rgba(255,255,255,.1);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.hero-card-header{display:flex;align-items:center;gap:1rem;margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid 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#0000001a;height:100%;display:flex;flex-direction:column;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);position:relative;overflow:hidden}.feature-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,#3b82f6,#8b5cf6,#60a5fa);transform:scaleX(0);transform-origin:left;transition:transform .6s ease}.feature-card:hover:before{transform:scaleX(1)}.feature-card:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,rgba(59,130,246,.1),transparent);opacity:0;transition:opacity .4s ease}.feature-card:hover:after{opacity:1}.feature-card:hover{transform:translateY(-10px) scale(1.02);box-shadow:0 25px 50px #0000004d;border-color:#60a5fa66}.feature-icon-wrapper{width:64px;height:64px;background:linear-gradient(135deg,#60a5fa1a,#a78bfa1a);border-radius:1rem;display:flex;align-items:center;justify-content:center;margin-bottom:1.5rem;font-size:1.75rem;color:#60a5fa;transition:all .4s ease;position:relative;z-index:2}.feature-card:hover .feature-icon-wrapper{transform:scale(1.1) rotate(5deg);background:linear-gradient(135deg,#3b82f633,#8b5cf633);box-shadow:0 8px 24px #60a5fa4d}.feature-title{font-size:1.25rem;font-weight:700;color:#f8fafc;margin-bottom:1rem;transition:color .3s ease;position:relative;z-index:2}.feature-card:hover .feature-title{color:#60a5fa;text-shadow:0 0 20px rgba(96,165,250,.3)}.feature-description{color:#94a3b8;line-height:1.6;margin-bottom:1.5rem;flex:1;position:relative;z-index:2;transition:color .3s ease}.feature-card:hover .feature-description{color:#cbd5e1}.how-it-works-section{padding:6rem 2rem;background:#0f172a99}.steps-container{max-width:900px;margin:0 auto;padding:0 2rem}.step{display:grid;grid-template-columns:auto 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.step-title{color:#60a5fa}.step-description{color:#94a3b8;line-height:1.7;margin-bottom:1.5rem}.step-features{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin-top:1.5rem}@media (max-width: 768px){.step-features{grid-template-columns:1fr}}.step-feature{display:flex;align-items:center;gap:.75rem;padding:.75rem;background:#ffffff0d;border-radius:.75rem;border:1px solid rgba(255,255,255,.1);transition:all .3s ease}.step-feature:hover{transform:translate(4px);background:#ffffff1a;border-color:#60a5fa4d}.step-feature-icon{width:32px;height:32px;background:#60a5fa1a;border-radius:6px;display:flex;align-items:center;justify-content:center;color:#60a5fa;font-size:.875rem;transition:all .3s ease}.step-feature:hover .step-feature-icon{background:#60a5fa33;transform:scale(1.1)}.step-feature-text{font-size:.875rem;font-weight:500;color:#cbd5e1}.cta-section{padding:6rem 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#ffffff1a}.video-modal-content{display:flex;flex-direction:column;flex:1;overflow:hidden}.demo-video{width:100%;height:auto;display:block;background:#000;aspect-ratio:16 / 9;object-fit:contain}.video-modal-info{padding:24px 32px;background:#0f172ae6;border-top:1px solid rgba(255,255,255,.1);flex-shrink:0}.video-modal-description{color:#cbd5e1;font-size:1rem;line-height:1.6;margin-bottom:20px;text-align:center}.video-modal-features{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:20px}@media (max-width: 768px){.video-modal-features{grid-template-columns:1fr}}.video-modal-feature{display:flex;align-items:center;gap:12px;padding:12px 16px;background:#ffffff0d;border-radius:12px;border:1px solid rgba(255,255,255,.1);transition:all .3s ease}.video-modal-feature:hover{background:#ffffff1a;border-color:#60a5fa4d;transform:translateY(-2px);box-shadow:0 4px 12px #60a5fa1a}.video-modal-feature svg{color:#60a5fa;font-size:1.1rem;min-width:20px}.video-modal-feature span{color:#e2e8f0;font-size:.95rem;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.video-modal,.close-button,.video-container{display:none}@media (max-width: 768px){.hero-container{padding:0 1rem;grid-template-columns:1fr;gap:3rem}.hero-stats{flex-direction:column;gap:1.5rem}.hero-actions{flex-direction:column}.hero-button{width:100%;max-width:300px;justify-content:center}.step{grid-template-columns:1fr;gap:1rem}.step-line:before{display:none}.hero-actions{flex-direction:column;align-items:center}.feature-card{padding:2rem 1.5rem}.video-modal-container{max-height:90vh}.video-modal-header{padding:20px 24px}.video-modal-title{font-size:1.25rem}.video-modal-close{width:40px;height:40px;border-radius:10px}.video-modal-info{padding:20px 24px}.video-modal-description{font-size:.95rem}}@media (max-width: 480px){.hero-title{font-size:2rem}.section-title{font-size:1.75rem}.features-grid{grid-template-columns:1fr}.video-modal-overlay{padding:10px}.video-modal-container{border-radius:16px}.video-modal-header{padding:16px 20px}.video-modal-title{font-size:1.1rem}.video-modal-close{width:36px;height:36px;font-size:1.1rem}.video-modal-info{padding:16px 20px}.video-modal-feature{padding:10px 14px}.video-modal-feature span{font-size:.9rem}}.fa-icon{font-size:inherit;line-height:inherit;vertical-align:middle}.fa-icon-large{font-size:2rem}.fa-icon-medium{font-size:1.5rem}.fa-icon-small{font-size:1rem}:root{--primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);--secondary-gradient: linear-gradient(135deg, #5ee7df 0%, #b490ca 100%);--accent-color: #7e57c2;--success-color: #4caf50;--warning-color: #ff9800;--danger-color: #f44336;--duplicate-color: #ff9800;--bg-primary: #121212;--bg-secondary: #1e1e1e;--bg-tertiary: #2d2d2d;--border-light: rgba(255, 255, 255, .12);--text-primary: #ffffff;--text-secondary: rgba(255, 255, 255, .7);--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-2xl: 24px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .12), 0 1px 2px rgba(0, 0, 0, .24);--shadow-md: 0 4px 6px rgba(0, 0, 0, .16), 0 4px 6px rgba(0, 0, 0, .23);--shadow-lg: 0 10px 20px rgba(0, 0, 0, .19), 0 6px 6px rgba(0, 0, 0, .23);--shadow-xl: 0 14px 28px rgba(0, 0, 0, .25), 0 10px 10px rgba(0, 0, 0, .22)}.scanner-container{position:relative;max-width:500px;margin:0 auto;background:var(--bg-secondary);border-radius:var(--radius-2xl);overflow:hidden;box-shadow:var(--shadow-xl);border:1px solid var(--border-light);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#1e1e1ee6}.scanner-video{width:100%;height:400px;object-fit:cover;filter:brightness(1.05) contrast(1.1);transition:all .3s ease}.scanner-overlay{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:center;pointer-events:none;background:radial-gradient(circle,transparent 50%,rgba(18,18,18,.8) 100%)}.scan-box{width:250px;height:250px;border:2px solid var(--accent-color);border-radius:var(--radius-xl);position:relative;animation:pulse 2s infinite;box-shadow:0 0 20px #7e57c266;overflow:hidden}.scan-box:before,.scan-box:after{content:"";position:absolute;width:20px;height:20px;border-color:var(--accent-color);border-style:solid}.scan-box:before{top:-2px;left:-2px;border-width:3px 0 0 3px;border-radius:5px 0 0}.scan-box:after{top:-2px;right:-2px;border-width:3px 3px 0 0;border-radius:0 5px 0 0}.scan-box .corner-bottom-left,.scan-box .corner-bottom-right{position:absolute;width:20px;height:20px;border-color:var(--accent-color);border-style:solid}.scan-box .corner-bottom-left{bottom:-2px;left:-2px;border-width:0 0 3px 3px;border-radius:0 0 0 5px}.scan-box .corner-bottom-right{bottom:-2px;right:-2px;border-width:0 3px 3px 0;border-radius:0 0 5px}.scan-line{position:absolute;height:3px;width:100%;background:var(--accent-color);top:0;box-shadow:0 0 10px #7e57c2cc;animation:scan 2s linear infinite}.scan-box.scanning{border-color:var(--accent-color);animation:scanning 1.5s infinite;box-shadow:0 0 25px #7e57c299}.scan-box.success{border-color:var(--success-color);animation:success .8s ease-in-out;box-shadow:0 0 25px #4caf5099}.scan-box.error{border-color:var(--danger-color);animation:error .8s ease-in-out;box-shadow:0 0 25px #f4433699}.scan-box.duplicate{border-color:var(--duplicate-color);animation:duplicate .8s ease-in-out;box-shadow:0 0 25px #ff980099}.scanner-placeholder{height:400px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-secondary);text-align:center;padding:2rem}.scanner-placeholder-icon{font-size:3rem;margin-bottom:1rem;opacity:.7}.scanner-placeholder h3{margin:0 0 .5rem;font-weight:600}.scanner-placeholder p{margin:0;font-size:.9rem}.camera-error-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:#000000d9;display:flex;align-items:center;justify-content:center;z-index:10}.camera-error-content{text-align:center;color:#fff;padding:2rem;max-width:80%}.error-icon{font-size:3rem;margin-bottom:1rem}.camera-error-content h3{margin:0 0 .5rem;font-weight:600}.camera-error-content p{margin:0 0 1.5rem;opacity:.8}.retry-button{background:var(--accent-color);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:var(--radius-lg);font-weight:600;cursor:pointer;transition:all .2s ease}.retry-button:hover{background:#8e6dc9;transform:translateY(-2px)}.scan-status{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#000000d9;padding:1.5rem;border-radius:var(--radius-xl);z-index:5;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1);text-align:center;min-width:200px}.scan-status.success{background:#2e7d32e6}.scan-status.error{background:#d32f2fe6}.scan-status.duplicate{background:#ed8936e6}.status-content{display:flex;flex-direction:column;align-items:center;gap:.5rem}.status-icon{font-size:2rem}.loading-spinner{width:30px;height:30px;border:3px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin 1s linear infinite}.scanner-footer{position:absolute;left:0;right:0;padding:1rem;background:#000000b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#fff;display:flex;flex-direction:column;gap:.75rem}.scanner-instruction{text-align:center;font-weight:500}.scanner-indicators{display:flex;justify-content:center;gap:1rem;font-size:.8rem}.indicator{display:flex;align-items:center;gap:.5rem;opacity:.7}.indicator.active{opacity:1}.indicator-dot{width:8px;height:8px;border-radius:50%;background:var(--text-secondary)}.indicator.active .indicator-dot{background:var(--success-color);box-shadow:0 0 8px var(--success-color)}.indicator-dot.audio{background:var(--accent-color);box-shadow:0 0 8px var(--accent-color)}@keyframes pulse{0%,to{opacity:.8;transform:scale(1);box-shadow:0 0 20px #7e57c266}50%{opacity:1;transform:scale(1.02);box-shadow:0 0 30px #7e57c299}}@keyframes scan{0%{top:0;opacity:0}10%{opacity:1}90%{opacity:1}to{top:100%;opacity:0}}@keyframes scanning{0%{border-color:var(--accent-color);transform:scale(1);box-shadow:0 0 20px #7e57c266}50%{border-color:#9c77d6;transform:scale(1.03);box-shadow:0 0 35px #9c77d6b3}to{border-color:var(--accent-color);transform:scale(1);box-shadow:0 0 20px #7e57c266}}@keyframes success{0%{transform:scale(1);border-color:var(--secondary-color);box-shadow:0 0 20px #4caf5066}50%{transform:scale(1.08);border-color:var(--success-color);box-shadow:0 0 40px #4caf50cc}to{transform:scale(1);border-color:var(--secondary-color);box-shadow:0 0 20px #4caf5066}}@keyframes error{0%,to{transform:translate(0);box-shadow:0 0 20px #f4433666}25%{transform:translate(-8px);box-shadow:0 0 25px #f4433699}75%{transform:translate(8px);box-shadow:0 0 25px #f4433699}}@keyframes duplicate{0%,to{transform:scale(1);border-color:var(--warning-color);box-shadow:0 0 20px #ff980066}50%{transform:scale(1.05);border-color:#ffb74d;box-shadow:0 0 30px #ffb74d99}}.header{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:#fff;padding:2rem;text-align:center;margin-bottom:2rem;border-radius:var(--radius-2xl);box-shadow:var(--shadow-xl);position:relative;overflow:hidden;transition:all .4s cubic-bezier(.175,.885,.32,1.275);transform:translateY(0)}.header:hover{transform:translateY(-5px);box-shadow:0 20px 40px #0003,0 0 0 1px #ffffff1a}.header:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(45deg,rgba(255,255,255,.1) 0%,transparent 100%);pointer-events:none;transition:opacity .3s ease}.header:hover:before{opacity:.8}.header:after{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:linear-gradient(to right,transparent 0%,rgba(255,255,255,.1) 50%,transparent 100%);transform:rotate(30deg) translate(-20%,-20%);animation:shimmer 8s infinite linear;pointer-events:none}@keyframes shimmer{0%{transform:rotate(30deg) translate(-20%,-20%)}to{transform:rotate(30deg) translate(20%,20%)}}.header h1{font-size:2.5rem;font-weight:800;margin-bottom:.5rem;text-shadow:0 2px 4px rgba(0,0,0,.1);position:relative;display:inline-block;transition:transform .3s ease}.header:hover h1{transform:scale(1.05)}.header h1:after{content:"";position:absolute;bottom:-10px;left:50%;width:0;height:3px;background:#fff;border-radius:3px;transform:translate(-50%);transition:width .3s ease}.header:hover h1:after{width:80px}.header p{font-size:1.125rem;opacity:.9;font-weight:400;transition:all .3s ease}.header:hover p{opacity:1;letter-spacing:.5px}.header .particles{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none}.header .particle{position:absolute;background:#ffffff4d;border-radius:50%;animation:float 6s infinite ease-in-out}@keyframes float{0%,to{transform:translateY(0) rotate(0);opacity:0}10%,90%{opacity:.6}50%{transform:translateY(-20px) rotate(180deg);opacity:1}}@media (max-width: 768px){.header{padding:1.5rem}.header h1{font-size:2rem}.header p{font-size:1rem}}.admin-login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;position:relative;padding:1rem}.admin-login-background{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,#667eea,#764ba2);z-index:-2}.admin-login-gradient-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(45deg,#667eeacc,#764ba2cc);z-index:-1}.admin-login-container{width:100%;max-width:420px;z-index:1}.admin-login-card{background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:20px;padding:2.5rem;box-shadow:0 20px 40px #0000001a;border:1px solid rgba(255,255,255,.2)}.admin-login-header{text-align:center;margin-bottom:2rem}.admin-login-logo{display:flex;flex-direction:column;align-items:center;gap:.5rem;margin-bottom:1rem}.admin-login-logo-icon{font-size:3rem;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;filter:drop-shadow(0 2px 4px rgba(0,0,0,.1))}.admin-login-title{font-size:2rem;font-weight:700;color:#1a202c;margin:0;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.admin-login-subtitle{color:#718096;font-size:1rem;margin:0;font-weight:500}.admin-login-form{display:flex;flex-direction:column;gap:1.5rem}.admin-form-group{display:flex;flex-direction:column;gap:.5rem}.admin-form-label{font-weight:600;color:#2d3748;font-size:.9rem}.admin-form-input-container{position:relative;display:flex;align-items:center}.admin-form-input-icon{position:absolute;left:1rem;font-size:1.2rem;z-index:2;color:#718096}.admin-form-input{width:100%;padding:1rem 1rem 1rem 3rem;border:2px solid #e2e8f0;border-radius:12px;font-size:1rem;background:#fffc;transition:all .3s ease;color:#2d3748}.admin-form-input:focus{outline:none;border-color:#667eea;background:#fffffff2;box-shadow:0 0 0 3px #667eea1a}.admin-form-input:disabled{opacity:.6;cursor:not-allowed}.admin-form-input::placeholder{color:#a0aec0}.admin-form-password-toggle{position:absolute;right:1rem;background:none;border:none;font-size:1.2rem;cursor:pointer;color:#718096;transition:color .3s ease;z-index:2}.admin-form-password-toggle:hover{color:#667eea}.admin-form-password-toggle:disabled{opacity:.6;cursor:not-allowed}.admin-login-button{width:100%;padding:1rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:12px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .3s ease;margin-top:.5rem}.admin-login-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 20px #667eea4d}.admin-login-button:disabled{opacity:.7;cursor:not-allowed;transform:none}.admin-login-button-loading{background:linear-gradient(135deg,#a0aec0,#718096)}.admin-login-button-content{display:flex;align-items:center;justify-content:center;gap:.5rem}.admin-login-spinner{width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-top:2px solid white;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.admin-login-footer{margin-top:2rem;text-align:center}.admin-login-footer-text{color:#718096;font-size:.9rem;margin:0 0 1rem}.admin-login-security-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:#667eea1a;border-radius:20px;color:#667eea;font-size:.8rem;font-weight:600}.admin-login-security-icon{font-size:1rem}@media (max-width: 480px){.admin-login-card{padding:2rem 1.5rem;margin:1rem}.admin-login-title{font-size:1.75rem}.admin-login-logo-icon{font-size:2.5rem}}@media (prefers-color-scheme: dark){.admin-login-card{background:#1a202cf2;border:1px solid rgba(255,255,255,.1)}.admin-login-title{color:#f7fafc}.admin-login-subtitle{color:#a0aec0}.admin-form-label{color:#e2e8f0}.admin-form-input{background:#2d3748cc;border-color:#4a5568;color:#f7fafc}.admin-form-input:focus{background:#2d3748f2}.admin-login-footer-text{color:#a0aec0}}.App{min-height:100vh;background:linear-gradient(135deg,#f5f7fa,#c3cfe2)}*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #6366f1;--primary-dark: #4f46e5;--secondary-color: #10b981;--secondary-dark: #059669;--accent-color: #f59e0b;--accent-dark: #d97706;--danger-color: #ef4444;--danger-dark: #dc2626;--warning-color: #f59e0b;--warning-dark: #d97706;--success-color: #10b981;--success-dark: #059669;--info-color: #3b82f6;--info-dark: #2563eb;--text-primary: #1f2937;--text-secondary: #6b7280;--text-muted: #9ca3af;--bg-primary: #ffffff;--bg-secondary: #f9fafb;--bg-tertiary: #f3f4f6;--bg-dark: #111827;--border-color: #e5e7eb;--border-light: #f3f4f6;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--transition: all .2s cubic-bezier(.4, 0, .2, 1);--transition-slow: all .3s cubic-bezier(.4, 0, .2, 1)}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;color:var(--text-primary);line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:1.5rem;min-height:100vh}.nav-buttons{display:flex;justify-content:center;gap:1rem;margin:2rem 0;flex-wrap:wrap}.nav-btn{padding:.875rem 1.5rem;background:var(--bg-primary);color:var(--text-primary);border:2px solid var(--border-color);border-radius:var(--radius-xl);cursor:pointer;font-size:.875rem;font-weight:600;transition:var(--transition);text-decoration:none;display:inline-flex;align-items:center;gap:.5rem;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}.nav-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent);transition:left .5s}.nav-btn:hover:before{left:100%}.nav-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--primary-color)}.nav-btn:active{transform:translateY(0)}.nav-btn.primary{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:#fff;border-color:var(--primary-color)}.nav-btn.secondary{background:linear-gradient(135deg,var(--secondary-color) 0%,var(--secondary-dark) 100%);color:#fff;border-color:var(--secondary-color)}.nav-btn.accent{background:linear-gradient(135deg,var(--accent-color) 0%,var(--accent-dark) 100%);color:#fff;border-color:var(--accent-color)}.nav-btn.danger{background:linear-gradient(135deg,var(--danger-color) 0%,var(--danger-dark) 100%);color:#fff;border-color:var(--danger-color)}.nav-btn.info{background:linear-gradient(135deg,var(--info-color) 0%,var(--info-dark) 100%);color:#fff;border-color:var(--info-color)}.nav-btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.card{background:var(--bg-primary);border-radius:var(--radius-2xl);padding:2rem;box-shadow:var(--shadow-lg);border:1px solid var(--border-light);transition:var(--transition-slow);position:relative;overflow:hidden}.card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color),var(--accent-color))}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl)}.cart-container{background:var(--bg-primary);border-radius:var(--radius-2xl);padding:2rem;box-shadow:var(--shadow-xl);border:1px solid var(--border-light)}.cart-item{display:flex;align-items:center;padding:1.5rem;border-bottom:1px solid var(--border-light);gap:1rem;transition:var(--transition);border-radius:var(--radius-lg);margin-bottom:1rem}.cart-item:hover{background:var(--bg-secondary);transform:translate(4px)}.cart-item:last-child{border-bottom:none;margin-bottom:0}.cart-item img{width:80px;height:80px;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);transition:var(--transition)}.cart-item img:hover{transform:scale(1.05)}.cart-item-details{flex:1}.cart-item-name{font-weight:600;margin-bottom:.5rem;color:var(--text-primary);font-size:1.125rem}.cart-item-price{color:var(--secondary-color);font-size:1.125rem;font-weight:600}.quantity-controls{display:flex;align-items:center;gap:.75rem;margin:.75rem 0}.quantity-btn{width:36px;height:36px;border:none;background:var(--primary-color);color:#fff;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-weight:600;transition:var(--transition);box-shadow:var(--shadow-sm)}.quantity-btn:hover{background:var(--primary-dark);transform:scale(1.1);box-shadow:var(--shadow-md)}.quantity-btn:active{transform:scale(.95)}.quantity-btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.remove-btn{background:linear-gradient(135deg,var(--danger-color) 0%,var(--danger-dark) 100%);color:#fff;border:none;padding:.75rem 1.25rem;border-radius:var(--radius-lg);cursor:pointer;font-weight:600;transition:var(--transition);box-shadow:var(--shadow-sm)}.remove-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.cart-total{text-align:center;margin:2rem 0;padding:2rem;background:linear-gradient(135deg,var(--bg-secondary) 0%,var(--bg-tertiary) 100%);border-radius:var(--radius-xl);border:1px solid var(--border-light)}.total-amount{font-size:2.5rem;font-weight:800;color:var(--secondary-color);text-shadow:0 2px 4px rgba(0,0,0,.1)}.payment-container{background:var(--bg-primary);border-radius:var(--radius-2xl);padding:2rem;box-shadow:var(--shadow-xl);max-width:600px;margin:0 auto;border:1px solid var(--border-light)}.payment-summary{background:linear-gradient(135deg,var(--bg-secondary) 0%,var(--bg-tertiary) 100%);padding:2rem;border-radius:var(--radius-xl);margin-bottom:2rem;border:1px solid var(--border-light)}.payment-item{display:flex;justify-content:space-between;margin-bottom:.75rem;padding:.5rem 0;font-weight:500}.payment-total{border-top:2px solid var(--primary-color);padding-top:1rem;margin-top:1rem;font-weight:700;font-size:1.25rem;color:var(--primary-color)}.pay-btn{width:100%;padding:1.25rem;background:linear-gradient(135deg,var(--secondary-color) 0%,var(--secondary-dark) 100%);color:#fff;border:none;border-radius:var(--radius-xl);font-size:1.25rem;font-weight:700;cursor:pointer;transition:var(--transition);box-shadow:var(--shadow-lg);position:relative;overflow:hidden}.pay-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s}.pay-btn:hover:before{left:100%}.pay-btn:hover{transform:translateY(-3px);box-shadow:var(--shadow-xl)}.pay-btn:active{transform:translateY(-1px)}.pay-btn:disabled{opacity:.7;cursor:not-allowed;transform:none!important}.nfc-container{position:relative;max-width:500px;margin:0 auto;background:var(--bg-primary);border-radius:var(--radius-2xl);overflow:hidden;box-shadow:var(--shadow-xl);border:1px solid var(--border-light)}.nfc-reader{width:100%;height:400px;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(135deg,#e0f2fe,#b3e5fc);position:relative}.nfc-animation{width:200px;height:200px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:2rem;transition:var(--transition-slow);box-shadow:var(--shadow-lg)}.nfc-animation.reading{animation:nfcPulse 2s infinite;background:linear-gradient(135deg,var(--info-color) 0%,var(--info-dark) 100%)}.nfc-animation.success{animation:nfcSuccess .5s ease-in-out;background:linear-gradient(135deg,var(--secondary-color) 0%,var(--secondary-dark) 100%)}.nfc-animation.error{animation:nfcError .5s ease-in-out;background:linear-gradient(135deg,var(--danger-color) 0%,var(--danger-dark) 100%)}@keyframes nfcPulse{0%,to{transform:scale(1);opacity:.8}50%{transform:scale(1.1);opacity:1}}@keyframes nfcSuccess{0%{transform:scale(1)}50%{transform:scale(1.2)}to{transform:scale(1)}}@keyframes nfcError{0%,to{transform:translate(0)}25%{transform:translate(-10px)}75%{transform:translate(10px)}}.form-group{margin-bottom:1.5rem}.form-label{display:block;margin-bottom:.5rem;font-weight:600;color:var(--text-primary);font-size:.875rem;text-transform:uppercase;letter-spacing:.05em}.form-input{width:100%;padding:.875rem 1rem;border:2px solid var(--border-color);border-radius:var(--radius-lg);font-size:1rem;transition:var(--transition);background:var(--bg-primary);color:var(--text-primary)}.form-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #6366f11a}.form-input:disabled{opacity:.5;cursor:not-allowed;background:var(--bg-tertiary)}.status-message{padding:1rem 1.5rem;border-radius:var(--radius-lg);margin:1rem 0;font-weight:500;border-left:4px solid;animation:slideIn .3s ease-out}@keyframes slideIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.status-message.success{background:#10b9811a;border-color:var(--secondary-color);color:var(--secondary-dark)}.status-message.error{background:#ef44441a;border-color:var(--danger-color);color:var(--danger-dark)}.status-message.info{background:#3b82f61a;border-color:var(--info-color);color:var(--info-dark)}.status-message.warning{background:#f59e0b1a;border-color:var(--warning-color);color:var(--warning-dark)}.empty-state{text-align:center;padding:4rem 2rem;color:var(--text-secondary)}.empty-state-icon{font-size:4rem;margin-bottom:1rem;opacity:.5}.empty-state h3{font-size:1.5rem;font-weight:600;margin-bottom:.5rem;color:var(--text-primary)}.empty-state p{font-size:1rem;margin-bottom:2rem}.loading-spinner{display:inline-block;width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:currentColor;animation:spin 1s ease-in-out infinite}@keyframes spin{to{transform:rotate(360deg)}}.badge{display:inline-flex;align-items:center;padding:.25rem .75rem;border-radius:9999px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.badge.primary{background:#6366f11a;color:var(--primary-dark)}.badge.secondary{background:#10b9811a;color:var(--secondary-dark)}.badge.danger{background:#ef44441a;color:var(--danger-dark)}.badge.warning{background:#f59e0b1a;color:var(--warning-dark)}.badge.info{background:#3b82f61a;color:var(--info-dark)}@keyframes blink-red{0%,to{background:var(--primary-color);transform:scale(1)}50%{background:var(--danger-color);transform:scale(1.2);box-shadow:0 0 15px var(--danger-color)}}.blink-danger{animation:blink-red .3s ease-in-out 3}@media (max-width: 768px){.container{padding:1rem}.header{padding:1.5rem;margin-bottom:1.5rem}.header h1{font-size:2rem}.nav-buttons{flex-direction:column;align-items:stretch;gap:.75rem}.nav-btn{justify-content:center}.cart-item{flex-direction:column;text-align:center;padding:1rem}.scanner-video{height:300px}.scan-box{width:200px;height:200px}.nfc-animation{width:150px;height:150px}.total-amount{font-size:2rem}.card{padding:1.5rem}}@media (max-width: 480px){.header h1{font-size:1.75rem}.header p{font-size:1rem}.card{padding:1rem}.total-amount{font-size:1.75rem}}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-tertiary);border-radius:var(--radius-sm)}::-webkit-scrollbar-thumb{background:var(--primary-color);border-radius:var(--radius-sm)}::-webkit-scrollbar-thumb:hover{background:var(--primary-dark)}*:focus{outline:2px solid var(--primary-color);outline-offset:2px}button:focus,.nav-btn:focus{outline:2px solid rgba(99,102,241,.5);outline-offset:2px}@media print{.nav-buttons,.scanner-container,.nfc-container{display:none!important}.container{max-width:none;padding:0}.card{box-shadow:none;border:1px solid #000}}