/* Simple responsive styles */
:root{
  --bg:#0f1724;
  --card:#0b1220;
  --accent:#22c55e;
  --text:#e6eef8;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial;
  background:linear-gradient(180deg,var(--bg),#071024);
  color:var(--text);
  padding:2rem;
}
main{max-width:900px;margin:0 auto}
h1{text-align:center;margin-bottom:1.5rem}
#countdowns{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}
.countdown{
  background:linear-gradient(180deg,rgba(255,255,255,0.02),transparent);
  border:1px solid rgba(255,255,255,0.04);
  padding:1rem;
  border-radius:10px;
  box-shadow: 0 6px 18px rgba(2,6,23,0.6);
}
.countdown h2{margin:0 0 .5rem;font-size:1.05rem}
.time{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, "Roboto Mono", monospace;
  font-weight:700;
  font-size:1.25rem;
  color:var(--accent);
}
.small{font-size:.85rem;color:rgba(230,238,248,0.7)}
.past{opacity:.7}