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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  /* Purple/blue gradient */
  background: linear-gradient(135deg, #4776E6, #8E54E9);
  color: #ffffff;
}

.center-wrapper {
  text-align: center;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

h2 {
  font-size: 1.5rem;
  font-weight: 400;
  opacity: 0.9;
}

.logo {
  width: 140px;          /* adjust as you like */
  height: auto;
  margin-bottom: 1rem;  /* space between logo and header */
}