* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

body {
  background: radial-gradient(circle at top, #0b1220, #05070d);
  color: #e5e7eb;
  min-height: 100vh;
}

header {
  text-align: center;
  padding: 50px 20px 30px;
}

header h1 {
  letter-spacing: 3px;
  font-size: 26px;
}

.subtitle {
  margin-top: 10px;
  color: #9ca3af;
  font-size: 14px;
}

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  background: linear-gradient(180deg, #0f172a, #020617);
  border-radius: 14px;
  padding: 22px;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.04);
}

.card h2 {
  font-size: 16px;
  margin-bottom: 14px;
  color: #c7d2fe;
}

.card p {
  font-size: 14px;
  margin-bottom: 8px;
}

.online {
  color: #22c55e;
  font-weight: 600;
}

ul {
  list-style: none;
  font-size: 13px;
}

ul li {
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.privacy {
  font-size: 13px;
  color: #9ca3af;
}

.error {
  color: #ef4444;
}

footer {
  text-align: center;
  padding: 30px 10px 40px;
  color: #6b7280;
  font-size: 12px;
}