:root{--rk3-black:#000000;--rk3-gold:#FFD700;--rk3-indigo:#4B0082;--rk3-emerald:#50C878;--rk3-white:#ffffff}body,html{padding:0;margin:0;font-family:Helvetica Neue,Helvetica,Arial,sans-serif;background-color:var(--rk3-black);color:var(--rk3-white)}a{color:var(--rk3-gold);text-decoration:none}a:hover{color:var(--rk3-emerald)}*{box-sizing:border-box}h1,h2,h3,h4,h5,h6{color:var(--rk3-gold);margin:0 0 1rem}button{background-color:var(--rk3-indigo);color:var(--rk3-white);padding:.5rem 1rem;border:none;border-radius:6px;cursor:pointer;font-size:1rem}button:hover{background-color:var(--rk3-emerald)}