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

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  min-height: 100vh;
  color: #e8e8e8;
  padding: 2rem;
}

.container {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.working {
  font-size: 3rem;
  font-weight: 700;
  color: #fff;
}

header {
  text-align: center;
  margin-bottom: 2rem;
}

header h1 {
  font-size: 1.75rem;
  font-weight: 600;
  color: #fff;
}

.subtitle {
  color: #a0aec0;
  margin-top: 0.25rem;
  font-size: 0.95rem;
}

.card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
}

.card h2 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: #e2e8f0;
}

.card p {
  line-height: 1.6;
  color: #cbd5e0;
}

.card.highlight {
  border-color: rgba(99, 179, 237, 0.4);
  background: rgba(99, 179, 237, 0.08);
}

footer {
  text-align: center;
  margin-top: 2rem;
  color: #718096;
  font-size: 0.85rem;
}