.header{background:var(--header-background);color:#fff;padding:.8rem;text-align:center;box-shadow:0 1px 3px #00000014}.header h1{font-size:1.6rem;margin-bottom:.4rem}.header p{opacity:.9;font-size:.8rem}.container{display:grid;grid-template-columns:1fr 350px;gap:20px;padding:15px;max-width:1320px;margin:0 auto;min-height:100vh;box-sizing:border-box}.panel{background:var(--component-background);border-radius:8px;padding:18px;box-shadow:0 3px 8px #0000000f;border:2px solid #ecf0f1}.side-panel-container{display:flex;flex-direction:column;gap:15px}.input-section-container{position:relative}.input-section{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:20px}.input-group{display:flex;flex-direction:column;gap:6px}.input-group.full-width{grid-column:1 / -1}label{font-weight:600;color:var(--text-dark);font-size:.85rem}input,select{padding:10px;border:1px solid var(--border-color);border-radius:3px;font-size:.9rem;transition:all .3s ease;font-family:inherit}input:focus,select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 2px #3498db1a}.search-container{position:relative}.suggestions{position:absolute;top:100%;left:0;right:0;background:#fff;border:1px solid var(--border-color);border-top:none;border-radius:0 0 3px 3px;max-height:200px;overflow-y:auto;z-index:1000;box-shadow:0 2px 6px #0000000a}.suggestion-item{padding:10px;cursor:pointer;border-bottom:1px solid #f8f9fa;transition:background .2s}.suggestion-item:hover,.suggestion-item.highlighted{background:var(--secondary-color)}.suggestion-item:last-child{border-bottom:none}.btn{padding:10px 18px;border:none;border-radius:3px;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:6px;font-family:inherit;color:#fff}.btn-primary{background:var(--primary-color)}.btn-success{background:var(--success-color)}.btn-warning{background:var(--warning-color)}.btn-danger{background:var(--danger-color)}.btn:hover{transform:translateY(-1px);box-shadow:0 2px 6px #00000014}.bill-section{background:#f8f9fa;border-radius:6px;padding:15px;margin-top:20px}.bill-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;padding-bottom:8px;border-bottom:1px solid var(--border-color)}.bill-items{max-height:250px;overflow-y:auto;margin-bottom:10px}.bill-item{display:flex;justify-content:space-between;align-items:center;padding:10px;margin-bottom:6px;background:#fff;border-radius:3px}.item-info{flex:1}.item-name{font-weight:600;color:var(--text-dark);font-size:.9rem}.item-details{font-size:.75rem;color:var(--text-light)}.item-price{font-weight:700;color:var(--success-color);font-size:.9rem}.remove-btn{background:var(--danger-color);color:#fff;border:none;border-radius:50%;width:20px;height:20px;cursor:pointer;font-size:.7rem}.total-section{background:var(--primary-color);color:#fff;padding:12px;border-radius:6px;text-align:center}.total-amount{font-size:1.6rem;font-weight:700;margin-bottom:4px}.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.stat-card{background:var(--primary-color);color:#fff;padding:12px;border-radius:6px;text-align:center}.stat-value{font-size:1.3rem;font-weight:700;margin-bottom:4px}.stat-label{font-size:.75rem;opacity:.9}.low-stock-list,.top-items-list{font-size:.85rem}.inventory-item{display:flex;justify-content:space-between;align-items:center;padding:8px;margin-bottom:4px;background:#f8f9fa;border-radius:3px}.stock-low{color:var(--danger-color);font-weight:600}.stock-ok{color:var(--success-color)}.quick-actions{display:flex;gap:8px;margin-bottom:15px;flex-wrap:wrap}.quick-btn{padding:6px 12px;background:var(--secondary-color);border:none;border-radius:15px;cursor:pointer;font-size:.85rem;transition:all .3s}.quick-btn:hover{background:var(--primary-color);color:#fff}.customer-info{background:#f8f9fa;padding:12px;border-radius:6px;margin-bottom:12px}.payment-methods{display:flex;gap:8px;margin:12px 0}.payment-method{flex:1;padding:8px;background:var(--secondary-color);border:1px solid transparent;border-radius:3px;cursor:pointer;text-align:center;transition:all .3s}.payment-method.active{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:2000}.modal-content{background:#fff;padding:20px;border-radius:8px;max-width:450px;width:90%;box-shadow:0 5px 15px #0000001a;position:relative}.modal-content h2{margin-top:0;margin-bottom:12px;color:var(--text-dark);font-size:1.4rem}.modal-close-btn{position:absolute;top:8px;right:8px;background:none;border:none;font-size:1.3rem;cursor:pointer;color:#888}.modal-close-btn:hover{color:#333}@media (max-width: 1024px){.container,.input-section{grid-template-columns:1fr}}@media (max-width: 768px){.container{padding:10px;gap:10px}.panel{padding:15px}.header h1{font-size:1.3rem}.input-section{grid-template-columns:1fr}.btn{padding:8px 12px;font-size:.85rem}.quick-actions{gap:5px}.modal-content{padding:15px}}.login-page{display:flex;justify-content:center;align-items:center;min-height:100vh;position:relative;background:linear-gradient(135deg,#667eea,#764ba2);font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;padding:20px;box-sizing:border-box}.login-background{position:absolute;inset:0;z-index:1}.security-pattern{position:absolute;inset:0;background-image:radial-gradient(circle at 2px 2px,rgba(255,255,255,.1) 1px,transparent 0),linear-gradient(45deg,transparent 40%,rgba(255,255,255,.05) 50%,transparent 60%);background-size:20px 20px,100px 100px;animation:securityPattern 20s linear infinite}@keyframes securityPattern{0%{transform:translate(0) translateY(0)}to{transform:translate(20px) translateY(20px)}}.login-container{background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:20px;padding:40px;box-shadow:0 20px 40px #0003,0 8px 25px #00000026,inset 0 1px #fffc;text-align:center;width:100%;max-width:450px;position:relative;z-index:2;border:1px solid rgba(255,255,255,.3)}.login-header{margin-bottom:30px}.login-logo{width:120px;height:120px;border-radius:20px;margin-bottom:15px;box-shadow:0 10px 20px #00000026;transition:transform .3s ease}.login-logo:hover{transform:scale(1.05)}.system-title{font-size:28px;font-weight:700;color:#2c3e50;margin:10px 0 5px;text-shadow:0 2px 4px rgba(0,0,0,.1)}.login-subtitle{font-size:18px;font-weight:500;color:#7f8c8d;margin:0 0 15px}.security-badge{display:inline-block;background:linear-gradient(45deg,#27ae60,#2ecc71);color:#fff;padding:8px 16px;border-radius:20px;font-size:14px;font-weight:600;box-shadow:0 4px 15px #27ae604d;animation:pulse 2s infinite}@keyframes pulse{0%{box-shadow:0 4px 15px #27ae604d}50%{box-shadow:0 4px 25px #27ae6080}to{box-shadow:0 4px 15px #27ae604d}}.login-form{text-align:left;margin-bottom:30px}.form-group{margin-bottom:25px}.form-group label{display:flex;align-items:center;margin-bottom:8px;font-weight:600;color:#2c3e50;font-size:14px}.form-group label .icon{margin-right:8px;font-size:16px}.form-group input{width:100%;padding:15px 20px;border:2px solid #e0e6ed;border-radius:12px;font-size:16px;transition:all .3s ease;box-sizing:border-box;background:#fff;color:#2c3e50}.form-group input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 4px #667eea1a;transform:translateY(-2px)}.form-group input:disabled{background:#f8f9fa;color:#6c757d;cursor:not-allowed}.form-group input.error{border-color:#e74c3c;box-shadow:0 0 0 4px #e74c3c1a}.password-container{position:relative}.password-toggle{position:absolute;right:15px;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer;font-size:18px;padding:5px;border-radius:50%;transition:background .2s ease}.password-toggle:hover:not(:disabled){background:#0000000d}.password-toggle:disabled{opacity:.5;cursor:not-allowed}.login-button{width:100%;padding:18px;border:none;border-radius:12px;background:linear-gradient(45deg,#667eea,#764ba2);color:#fff;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 8px 20px #667eea4d}.login-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 12px 30px #667eea66}.login-button:active:not(:disabled){transform:translateY(0)}.login-button.loading{background:linear-gradient(45deg,#95a5a6,#bdc3c7);cursor:wait}.login-button.locked{background:linear-gradient(45deg,#e74c3c,#c0392b);cursor:not-allowed}.login-button:disabled{opacity:.7;cursor:not-allowed;transform:none}.spinner{width:18px;height:18px;border:2px solid transparent;border-top:2px solid white;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error-message{background:linear-gradient(45deg,#ffebee,#ffcdd2);border:1px solid #e57373;border-radius:10px;padding:15px;margin-top:15px;display:flex;align-items:center;gap:10px;font-size:14px;color:#c62828;animation:slideIn .3s ease}.error-message.critical{background:linear-gradient(45deg,#ffebee,#ffabab);border-color:#f44336;animation:shake .5s ease}@keyframes slideIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-5px)}75%{transform:translate(5px)}}.error-icon{font-size:16px}.login-footer{border-top:1px solid #e0e6ed;padding-top:25px;margin-top:25px}.forgot-password{margin-bottom:20px}.forgot-link{background:none;border:none;color:#667eea;text-decoration:none;cursor:pointer;font-size:14px;font-weight:500;padding:8px 16px;border-radius:8px;transition:all .2s ease}.forgot-link:hover:not(:disabled){background:#667eea1a;color:#5a6fd8}.forgot-link:disabled{opacity:.5;cursor:not-allowed}.system-info{text-align:center;font-size:12px;color:#7f8c8d;line-height:1.6}.time-display{background:linear-gradient(45deg,#f8f9fa,#e9ecef);padding:8px 12px;border-radius:8px;margin-bottom:8px;font-family:Courier New,monospace;font-weight:500}.version-info{font-weight:600;color:#6c757d}@media (max-width: 480px){.login-page{padding:10px}.login-container{padding:30px 25px;margin:10px}.login-logo{width:100px;height:100px}.system-title{font-size:24px}.form-group input{padding:12px 16px;font-size:14px}.login-button{padding:15px;font-size:14px}}@media (prefers-color-scheme: dark){.login-container{background:#1e1e28f2;color:#fff}.system-title{color:#fff}.login-subtitle{color:#b0b0b0}.form-group label{color:#fff}.form-group input{background:#ffffff1a;border-color:#fff3;color:#fff}.time-display{background:#ffffff1a;color:#fff}}:root{--primary-color: #2980b9;--secondary-color: #ecf0f1;--header-background: #2c3e50;--success-color: #27ae60;--warning-color: #f39c12;--danger-color: #e74c3c;--background-color: #f8f9fa;--component-background: white;--text-dark: #2c3e50;--text-light: #7f8c8d;--border-color: #bdc3c7;--touch-button-height: 50px;--touch-button-font: 16px;--touch-input-height: 45px;--touch-input-font: 15px}body{font-family:Segoe UI,Arial,sans-serif;background:var(--background-color);min-height:100vh;color:var(--text-dark);margin:0;font-size:16px;line-height:1.4}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}.btn{min-height:var(--touch-button-height);padding:12px 20px;font-size:var(--touch-button-font);font-weight:600;border:2px solid transparent;border-radius:6px;cursor:pointer;transition:all .2s ease;touch-action:manipulation;-webkit-user-select:none;user-select:none;display:inline-flex;align-items:center;justify-content:center;gap:6px}.btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.btn:active{transform:translateY(0);box-shadow:0 2px 6px #0003}input,select,textarea{min-height:var(--touch-input-height);padding:10px 14px;font-size:var(--touch-input-font);border:2px solid var(--border-color);border-radius:5px;background:#fff;color:var(--text-dark);touch-action:manipulation}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2980b933}table{font-size:15px}th,td{padding:12px 8px}.component-card{padding:20px;margin:15px 0;border-radius:10px;box-shadow:0 2px 8px #0000001a}nav{padding:15px 20px}nav a{padding:12px 20px;font-size:16px;text-decoration:none;border-radius:6px;transition:background-color .2s}@media (max-width: 2200px){.grid-responsive{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}}.large-text{font-size:20px;font-weight:600}.extra-large-text{font-size:24px;font-weight:700}