:root {
  --bg: #0e0e10;
  --text: #f5f5f7;
  --accent: #7c5cff;
}

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

html, body {
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
}

main {
  text-align: center;
  padding: 2rem;
}

h1 {
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

button {
  margin-top: 2.5rem;
  padding: 0.9rem 2.6rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  background: var(--accent);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

button:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

button:active {
  transform: translateY(0);
}

.hidden {
  display: none;
}

#msg {
  margin-top: 1.4rem;
  color: #9a9aa5;
  font-size: 0.95rem;
}