:root{--bg:#000;--fg:#fff;--accent:#00d07c;}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--fg);display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;text-align:center;}
img.logo{max-width:300px;height:auto;margin:20px;}
h1{font-size:2.5rem;margin:0.5em 0;}
p{color:#bbb;max-width:600px;margin:0.5em auto;}
a.button{background:var(--accent);color:#000;padding:15px 30px;border-radius:8px;text-decoration:none;font-weight:bold;display:inline-block;margin-top:20px;}