* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Prompt', sans-serif;
  background: #0f1117;
  color: #e4e4e7;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}
.card {
  background: #1a1b23;
  border: 1px solid #2a2b35;
  border-radius: 16px;
  padding: 48px;
  text-align: center;
  max-width: 400px;
  width: 90%;
}
.card h1 { font-size: 24px; font-weight: 600; margin-bottom: 8px; }
.card p { color: #9ca3af; font-size: 14px; margin-bottom: 32px; }
.error { color: #f87171; font-size: 13px; margin-bottom: 16px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  color: #1a1b23;
  border: none;
  border-radius: 8px;
  padding: 12px 28px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s;
}
.btn:hover { background: #e4e4e7; }
.btn svg { width: 20px; height: 20px; }
.domain { color: #60a5fa; font-size: 13px; margin-top: 16px; }