*{box-sizing:border-box;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}.app-container{min-height:100vh;display:flex;position:relative}.main-content{flex:1;justify-content:center;align-items:center;padding:20px;display:flex}.welcome-screen{text-align:center;width:100%;max-width:1000px}.welcome-header{margin-bottom:60px}.logo{color:#fff;margin-bottom:10px;font-size:3rem;font-weight:700}.tagline{color:#ffffffe6;font-size:1.2rem}.welcome-options{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;margin-top:40px;display:grid}.welcome-card{cursor:pointer;background:#fff;border-radius:20px;padding:40px 30px;transition:all .3s;box-shadow:0 10px 30px #0003}.welcome-card:hover{transform:translateY(-5px);box-shadow:0 15px 40px #0000004d}.card-icon{margin-bottom:20px;font-size:3rem}.card-title{color:#667eea;margin-bottom:15px;font-size:1.5rem;font-weight:600}.card-description{color:#666;font-size:1rem;line-height:1.6}.lookup-screen{width:100%;max-width:600px}.lookup-container{background:#fff;border-radius:20px;padding:50px 40px;box-shadow:0 10px 30px #0003}.lookup-title{color:#667eea;text-align:center;margin-bottom:30px;font-size:2rem}.lookup-form{flex-direction:column;gap:20px;display:flex}.lookup-label{color:#333;font-size:1rem;font-weight:500}.lookup-input{border:2px solid #ddd;border-radius:10px;padding:15px 20px;font-size:1rem;transition:border-color .3s}.lookup-input:focus{border-color:#667eea;outline:none}.lookup-error{color:#e53e3e;background:#fff5f5;border-left:3px solid #e53e3e;border-radius:5px;padding:10px;font-size:.9rem}.lookup-buttons{gap:15px;margin-top:10px;display:flex}.profile-screen{width:100%;max-width:900px}.profile-container{background:#fff;border-radius:20px;padding:50px 40px;box-shadow:0 10px 30px #0003}.profile-name{color:#667eea;text-align:center;margin-bottom:40px;font-size:2.5rem}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-bottom:40px;display:grid}.stat-card{color:#fff;text-align:center;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-radius:15px;padding:25px 20px}.stat-value{margin-bottom:10px;font-size:1.8rem;font-weight:700}.stat-label{opacity:.9;font-size:.9rem}.top-products{margin-bottom:40px}.section-title{color:#333;margin-bottom:20px;font-size:1.3rem;font-weight:600}.product-list{background:#f7fafc;border-radius:10px;padding:20px}.product-item{color:#2d3748;border-bottom:1px solid #e2e8f0;padding:12px 0;font-size:.95rem}.product-item:last-child{border-bottom:none}.profile-actions{flex-wrap:wrap;justify-content:center;gap:15px;display:flex}.chat-screen{background:#fff;border-radius:20px;flex-direction:column;width:100%;max-width:1400px;height:90vh;display:flex;overflow:hidden;box-shadow:0 10px 30px #0003}.chat-header{color:#fff;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);justify-content:space-between;align-items:center;padding:20px 30px;display:flex}.chat-title{font-size:1.5rem;font-weight:600}.btn-exit{color:#fff;cursor:pointer;background:#fff3;border:1px solid #ffffff4d;border-radius:8px;padding:10px 20px;font-size:.95rem;transition:all .3s}.btn-exit:hover{background:#ffffff4d}.chat-container{background:#f7fafc;flex:1;padding:30px;overflow-y:auto}.messages-container{max-width:900px;margin:0 auto}.message{border-radius:15px;max-width:80%;margin-bottom:20px;padding:15px 20px;line-height:1.6}.message.user{color:#fff;background:#667eea;border-bottom-right-radius:5px;margin-left:auto}.message.assistant{color:#2d3748;background:#fff;border-bottom-left-radius:5px;margin-right:auto;box-shadow:0 2px 5px #0000001a}.typing-indicator{letter-spacing:3px;font-size:1.5rem;animation:1.5s infinite pulse}@keyframes pulse{0%,to{opacity:.3}50%{opacity:1}}.quick-buttons{margin:20px 0}.button-row{flex-wrap:wrap;gap:10px;margin-bottom:10px;display:flex}.quick-btn{color:#667eea;cursor:pointer;background:#fff;border:2px solid #667eea;border-radius:25px;padding:12px 24px;font-size:.95rem;font-weight:500;transition:all .3s}.quick-btn:hover{color:#fff;background:#667eea;transform:translateY(-2px);box-shadow:0 4px 10px #667eea4d}.products-container{gap:15px;margin:20px 0;display:grid}.product-card{background:#fff;border:2px solid #e2e8f0;border-radius:12px;justify-content:space-between;align-items:flex-start;padding:20px;transition:all .3s;display:flex;box-shadow:0 2px 8px #0000001a}.product-card:hover{border-color:#667eea;box-shadow:0 4px 12px #667eea33}.product-info{flex:1}.product-header{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:10px;display:flex}.product-name{color:#2d3748;font-size:1rem;font-weight:600}.product-type{color:#fff;text-transform:uppercase;background:#667eea;border-radius:12px;padding:4px 12px;font-size:.75rem;font-weight:600}.product-description{color:#4a5568;margin-bottom:10px;font-size:.9rem;line-height:1.5}.product-details{flex-wrap:wrap;gap:15px;font-size:.9rem;display:flex}.product-detail-item{color:#718096}.product-actions{align-items:center;margin-left:20px;display:flex}.add-to-list-btn{color:#fff;cursor:pointer;white-space:nowrap;background:#48bb78;border:none;border-radius:8px;padding:10px 20px;font-size:.9rem;font-weight:600;transition:all .3s}.add-to-list-btn:hover:not(:disabled){background:#38a169;transform:translateY(-2px);box-shadow:0 4px 8px #48bb784d}.add-to-list-btn:disabled{cursor:not-allowed;background:#68d391}.chat-input-container{background:#fff;border-top:1px solid #e2e8f0;gap:15px;padding:20px 30px;display:flex}.chat-input{border:2px solid #e2e8f0;border-radius:25px;flex:1;padding:15px 20px;font-size:1rem;transition:border-color .3s}.chat-input:focus{border-color:#667eea;outline:none}.btn-send{color:#fff;cursor:pointer;background:#667eea;border:none;border-radius:25px;padding:15px 35px;font-size:1rem;font-weight:600;transition:all .3s}.btn-send:hover:not(:disabled){background:#5568d3;transform:translateY(-2px);box-shadow:0 4px 10px #667eea4d}.btn-send:disabled{cursor:not-allowed;background:#a0aec0}.shopping-list-panel{z-index:100;background:#fff;flex-direction:column;width:350px;height:100vh;transition:transform .3s;display:flex;position:fixed;top:0;right:0;box-shadow:-5px 0 15px #0000001a}.shopping-list-panel.collapsed{transform:translate(310px)}.list-header{color:#fff;cursor:pointer;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);justify-content:space-between;align-items:center;padding:20px;display:flex}.list-title{font-size:1.2rem;font-weight:600}.list-count{background:#ffffff4d;border-radius:12px;margin-left:10px;padding:4px 10px;font-size:.9rem}.collapse-btn{color:#fff;cursor:pointer;background:0 0;border:none;font-size:1.2rem}.list-items{flex:1;padding:20px;overflow-y:auto}.list-item{background:#f7fafc;border:1px solid #e2e8f0;border-radius:8px;justify-content:space-between;align-items:flex-start;margin-bottom:10px;padding:15px;display:flex}.list-item-content{flex:1;padding-right:10px}.list-item-name{color:#2d3748;font-size:.9rem;line-height:1.4}.remove-item-btn{color:#fff;cursor:pointer;background:#e53e3e;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;font-size:1.2rem;transition:all .3s;display:flex}.remove-item-btn:hover{background:#c53030;transform:scale(1.1)}.list-actions{border-top:1px solid #e2e8f0;flex-direction:column;gap:10px;padding:20px;display:flex}.btn-show-list,.btn-clear-list{cursor:pointer;border:none;border-radius:8px;padding:12px 20px;font-size:.95rem;font-weight:600;transition:all .3s}.btn-show-list{color:#fff;background:#667eea}.btn-show-list:hover{background:#5568d3}.btn-clear-list{color:#2d3748;background:#e2e8f0}.btn-clear-list:hover{background:#cbd5e0}.shopping-list-fullscreen{z-index:1000;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);flex-direction:column;width:100%;height:100%;padding:40px;display:flex;position:fixed;top:0;left:0}.fullscreen-header{justify-content:space-between;align-items:center;margin-bottom:40px;display:flex}.fullscreen-header h2{color:#fff;font-size:2.5rem}.btn-close{color:#fff;cursor:pointer;background:#fff3;border:1px solid #ffffff4d;border-radius:10px;padding:15px 30px;font-size:1.1rem;font-weight:600;transition:all .3s}.btn-close:hover{background:#ffffff4d}.fullscreen-items{background:#fff;border-radius:20px;flex:1;padding:40px;overflow-y:auto}.shopping-list-item-fullscreen{color:#2d3748;border-bottom:2px solid #e2e8f0;padding:20px;font-size:1.3rem;line-height:1.6}.shopping-list-item-fullscreen:last-child{border-bottom:none}.btn-primary{color:#fff;cursor:pointer;background:#667eea;border:none;border-radius:10px;padding:15px 30px;font-size:1rem;font-weight:600;transition:all .3s}.btn-primary:hover:not(:disabled){background:#5568d3;transform:translateY(-2px);box-shadow:0 4px 10px #667eea4d}.btn-primary:disabled{cursor:not-allowed;background:#a0aec0}.btn-secondary{color:#667eea;cursor:pointer;background:#fff;border:2px solid #667eea;border-radius:10px;padding:15px 30px;font-size:1rem;font-weight:600;transition:all .3s}.btn-secondary:hover{background:#f7fafc;transform:translateY(-2px)}@media (max-width:768px){.welcome-options{grid-template-columns:1fr}.stats-grid{grid-template-columns:repeat(2,1fr)}.shopping-list-panel{width:100%}.shopping-list-panel.collapsed{transform:translate(calc(100% - 40px))}.chat-screen{border-radius:0;height:100vh}.product-card{flex-direction:column}.product-actions{width:100%;margin-top:15px;margin-left:0}.add-to-list-btn{width:100%}}