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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.container {
  max-width: 800px;
  width: 90%;
  padding: 2rem;
}

header {
  text-align: center;
  margin-bottom: 2.5rem;
}

header h1 {
  font-size: 3rem;
  color: #f97316;
  letter-spacing: 2px;
}

.subtitle {
  font-size: 1.1rem;
  color: #94a3b8;
  margin-top: 0.5rem;
}

.card {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.card h2 {
  font-size: 1.4rem;
  color: #f97316;
  margin-bottom: 1rem;
}

.card p {
  line-height: 1.7;
  color: #cbd5e1;
}

footer {
  text-align: center;
  margin-top: 2.5rem;
  color: #475569;
  font-size: 0.9rem;
}