:root{--primary: #2c3e50;--secondary: #4a90e2;--accent: #e74c3c;--light: #ecf0f1;--dark: #34495e}*{box-sizing:border-box;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}body{margin:0;padding:0;background-color:#f5f5f5}input[type=number]::-webkit-outer-spin-button,input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield}input[type=number]{-webkit-appearance:textfield;-moz-appearance:textfield;appearance:textfield}input[type=number]:focus{pointer-events:auto}input[type=number]::-ms-clear{display:none}.app-container{max-width:1200px;margin:0 auto;padding:20px;min-height:100vh;position:relative}.nav-bar{display:flex;gap:15px;margin-bottom:30px}.nav-bar a{padding:15px 30px;border:none;border-radius:8px;background:var(--primary);color:#fff;cursor:pointer;font-weight:700;font-size:1.1rem;letter-spacing:1px;text-transform:uppercase;transition:all .3s ease;flex:1;text-align:center;text-decoration:none}.nav-bar a:hover{transform:translateY(-2px);box-shadow:0 4px 8px #0003}.app-title{text-align:center;color:var(--primary);margin-bottom:30px;font-size:2.5rem;letter-spacing:2px;text-transform:uppercase}.app-version{position:fixed;bottom:10px;right:10px;color:#0003;font-size:.8rem;font-style:italic}:root{--primary: #4a90e2;--secondary: #7ed321;--background: #f5f7fa;--text: #2d3436}body{font-family:Inter,sans-serif;background:var(--background)}.dashboard-section{background:#fff;border-radius:16px;padding:2rem;margin:1rem;box-shadow:0 4px 6px #0000001a}.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1rem;margin-top:2rem}.product-card{background:#fff;padding:1.5rem;border-radius:12px;box-shadow:0 2px 4px #0000000d;transition:transform .2s}.product-card:hover{transform:translateY(-2px)}