* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: #0d1117;
  color: #c9d1d9;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.container {
  padding: 20px;
}

.card {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 12px;
  padding: 40px 48px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  max-width: 400px;
  position: relative;
}

.pulse-indicator {
  width: 12px;
  height: 12px;
  background-color: #238636;
  border-radius: 50%;
  margin: 0 auto 16px auto;
  box-shadow: 0 0 0 0 rgba(35, 134, 54, 0.7);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(35, 134, 54, 0.7);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px rgba(35, 134, 54, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(35, 134, 54, 0);
  }
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  color: #f0f6fc;
  margin-bottom: 8px;
}

.subtitle {
  font-size: 1rem;
  color: #8b949e;
  margin-bottom: 24px;
}

.status-badge {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: #3fb950;
  background: rgba(46, 160, 67, 0.15);
  padding: 6px 16px;
  border-radius: 20px;
  border: 1px solid rgba(63, 185, 80, 0.3);
}