* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #111827, #1f2937);
  color: #f9fafb;
  font-family: Arial, Helvetica, sans-serif;
}

.container {
  width: min(90%, 700px);
  padding: 2rem;
  border: 1px solid #374151;
  border-radius: 12px;
  background: rgba(17, 24, 39, 0.8);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  text-align: center;
}

h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 5vw, 3rem);
}

.subtitle {
  margin: 0 0 1rem;
  color: #d1d5db;
}

.status {
  display: inline-block;
  margin: 0;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  background: #1f2937;
  border: 1px solid #4b5563;
  font-size: 0.95rem;
}

.status.ok {
  border-color: #10b981;
  color: #6ee7b7;
}