html,
body {
  height: 100vh;
  margin: 0;
  padding: 0;
  font-size: 20px;
  font-family: "Quicksand", Arial, sans-serif;
  background: linear-gradient(135deg, #f7e9d7 0%, #e3c7a1 60%, #fff8f0 100%);
}

.certificate-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh; /* Center vertically and horizontally */
  margin: 0 auto;
}

.main-title {
  font-family: "Quicksand", Arial, sans-serif;
  font-size: 3rem;
  text-align: center;
  letter-spacing: 2px;
  margin: 0;
}

.highlight {
  color: #0078d4;
  font-weight: bold;
  text-shadow: 1px 1px 8px #b3d1f3;
}

.subtitle {
  color: #333;
  font-size: 1.2rem;
  font-style: italic;
  letter-spacing: 1px;
  display: block;
  margin-top: 0.2em;
}

.h3 {
  font-family: "Quicksand", Arial, sans-serif;
  font-size: 2rem;
  padding-top: 30px;
  text-align: center;
  color: #555;
  margin: 0;
}

.certificate-info {
  text-align: center;
  margin: 20px auto;
}

.download-btn {
  display: inline-block;
  padding: 10px 20px;
  background-color: #0078d4;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  border: none;
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.68, -0.55, 0.27, 1.55),
    box-shadow 0.2s;
  box-shadow: 0 2px 8px rgba(0, 120, 212, 0.08);
}

.download-btn:hover {
  background-color: #005fa3;
  transform: scale(1.12);
  box-shadow: 0 8px 24px rgba(0, 120, 212, 0.18),
    0 0 0 8px rgba(0, 120, 212, 0.08);
}