*,:after,:before{margin:0;padding:0;box-sizing:border-box}body,html{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:#fff;color:#000;line-height:1.5;transition:background .3s ease,color .3s ease}html.dark-mode,html.dark-mode body{background-color:#121212;color:#e0e0e0}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}:root{--primary-color:#00d1ff;--bg-gradient:linear-gradient(135deg,#0f0c29,#302b63,#24243e)}button{background-color:var(--primary-color);color:#fff;border:none;padding:.75rem 1.5rem;font-size:1rem;border-radius:5px;cursor:pointer;transition:background .3s ease}button:hover{background-color:#008bb5}@media (max-width:768px){html{font-size:14px}}@media (max-width:480px){html{font-size:12px}}