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

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", sans-serif;
  background: linear-gradient(135deg, #1e3a8a, #6d28d9);
  color: #1f2937;
}

.card {
  background: #fff;
  padding: 40px 48px;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  max-width: 560px;
  text-align: center;
}

h1 { font-size: 28px; margin-bottom: 16px; color: #4c1d95; }
p { line-height: 1.7; margin-bottom: 12px; }
.ts { font-size: 13px; color: #6b7280; }
.out { margin-top: 16px; font-weight: 600; color: #059669; min-height: 24px; }

button {
  margin-top: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  background: #6d28d9;
  color: #fff;
  font-size: 15px;
  cursor: pointer;
  transition: background 0.2s;
}
button:hover { background: #5b21b6; }