:root{
  --surface-default:#FFFFFF; --surface-subtle:#F6F7F8; --surface-sunken:#EEF0F2;
  --border-default:#E5E8EB; --text-primary:#0F1419; --text-secondary:#5B6573; --text-tertiary:#8A94A1;
  --primary-default:#0F766E; --primary-hover:#115E59; --on-primary:#FFFFFF;
  --network-ton:#0098EA; --network-solana:#9945FF;
}
[data-theme="dark"]{
  --surface-default:#0E1214; --surface-subtle:#161B1E; --surface-sunken:#1C2226;
  --border-default:#263036; --text-primary:#EEF2F4; --text-secondary:#9AA6AF; --text-tertiary:#6B7781;
  --primary-default:#2DD4BF; --primary-hover:#5EEAD4; --on-primary:#04201D;
}
*{box-sizing:border-box}
body{margin:0;background:var(--surface-default);color:var(--text-primary);
  font-family:'Onest',system-ui,sans-serif;display:flex;min-height:100vh;align-items:center;justify-content:center}
.card{max-width:520px;width:calc(100% - 32px);border:1px solid var(--border-default);border-radius:12px;
  padding:32px;background:var(--surface-subtle);text-align:center}
h1{font-size:24px;margin:0 0 8px;font-family:'Space Grotesk','Onest',system-ui,sans-serif}
p{color:var(--text-secondary);font-size:14px;line-height:1.5}
.nets{display:flex;gap:8px;justify-content:center;margin:16px 0}
.net{border-radius:999px;padding:4px 12px;font-size:13px;color:#fff}
.ton{background:var(--network-ton)} .sol{background:var(--network-solana)}
code{font-family:'JetBrains Mono',monospace;font-size:13px;background:var(--surface-sunken);
  padding:2px 8px;border-radius:6px}
#health{margin-top:12px;font-size:13px;color:var(--text-tertiary)}