style.css

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

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #1a1a2e, #16213e);
  color: #eee;
}

.container {
  text-align: center;
  padding: 40px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  max-width: 420px;
  width: 90%;
}

h1 {
  font-size: 1.8rem;
  margin-bottom: 10px;
}

.desc {
  opacity: 0.8;
  margin-bottom: 30px;
  font-size: 0.95rem;
}

button {
  background: #4f46e5;
  border: none;
  color: white;
  padding: 12px 22px;
  font-size: 1rem;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.25s ease;
}

button:hover {
  background: #6366f1;
}

pre {
  text-align: left;
  background: rgba(255, 255, 255, 0.1);
  padding: 16px;
  border-radius: 10px;
  margin-top: 25px;
  font-size: 0.9rem;
  word-break: break-word;
  max-height: 300px;
  overflow-y: auto;
}