:root{--bg-primary: #121212;--bg-secondary: #1e1e1e;--bg-card: rgba(30, 30, 30, .6);--text-primary: #ffffff;--text-secondary: #a0a0a0;--accent-primary: #00e3ff;--accent-secondary: #ccff00;--error: #ff4d4d;--glass-border: rgba(255, 255, 255, .1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.5;min-height:100vh}button{cursor:pointer;border:none;font-family:inherit;transition:all .2s ease}.btn-primary{background:var(--accent-primary);color:#000;padding:.75rem 1.5rem;border-radius:8px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.btn-primary:hover{filter:brightness(1.1);box-shadow:0 0 15px #00e3ff4d}.btn-secondary{background:transparent;border:1px solid var(--accent-primary);color:var(--accent-primary);padding:.75rem 1.5rem;border-radius:8px;font-weight:600}.btn-secondary:hover{background:#00e3ff1a}.card{background:var(--bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--glass-border);border-radius:12px;padding:1.5rem}input,select{background:var(--bg-secondary);border:1px solid var(--glass-border);color:#fff;padding:.75rem;border-radius:8px;width:100%;font-size:1rem}input:focus,select:focus{outline:none;border-color:var(--accent-primary)}.container{max-width:1200px;margin:0 auto;padding:0 1rem}@media(max-width:768px){.container{padding:0 .5rem}h1{font-size:1.8rem!important}.card{padding:1rem}.grid-responsive,.grid-2,.grid-3,.dashboard-grid{grid-template-columns:1fr!important}.cart-sidebar{width:100%!important}}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1rem}.dashboard-grid{display:grid;grid-template-columns:minmax(300px,1fr) 300px;gap:2rem}