* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #0f172a;
  color: #f1f5f9;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.container {
  max-width: 680px;
  width: 100%;
  padding: 40px 20px;
  text-align: center;
}
.logo { width: 100px; margin-bottom: 24px; }
h1 { font-size: 2rem; font-weight: 700; margin-bottom: 8px; }
.subtitle { color: #64748b; margin-bottom: 32px; font-size: 1rem; }
.version-badge {
  display: inline-block;
  background: #1e3a5f;
  border: 1px solid #2563eb;
  color: #93c5fd;
  padding: 6px 18px;
  border-radius: 999px;
  font-size: 0.9rem;
  margin-bottom: 24px;
}
.info-card {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 16px;
}
.clock {
  font-size: 1.1rem;
  color: #38bdf8;
  font-family: monospace;
  margin-top: 8px;
}
.btn {
  display: inline-block;
  background: #f97316;
  color: white;
  padding: 12px 28px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  margin-top: 12px;
  transition: background 0.2s;
}
.btn:hover { background: #ea580c; }
.note { color: #475569; font-size: 0.8rem; margin-top: 8px; }