:root {
  --purple-900: #2b0052;
  --purple-700: #4b007a;
  --gold-600: #d4af37;
  --gold-400: #f0c75e;
  --bg: linear-gradient(135deg, rgba(43,0,82,1), rgba(75,0,122,0.9));
  font-family: Inter, system-ui, Arial;
}
body {
  margin:0; padding:0; background:var(--bg); color:white;
}
header {text-align:center; padding:40px 20px;}
header img {width:110px;}
nav a {margin:0 10px; color:var(--gold-400); text-decoration:none; font-weight:600;}
.container {max-width:900px; margin:auto; padding:20px;}
.card {
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:16px;
  padding:24px;
  backdrop-filter:blur(6px);
}
#countdown {font-size:32px; font-weight:700; color:var(--gold-400); text-align:center; margin-top:20px;}
@media(max-width:600px){
  header img {width:80px;}
  #countdown {font-size:22px;}
}