* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: #2E5A88; 
  color: #222;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  padding: 2.5rem 3rem;
  background: #d49a34;;
  border-radius: 15px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  border: 1.5px solid #c0d4e2;
  transition: all 0.3s ease-in-out;
  animation: fadeIn 0.8s ease-in-out;
}

.key-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 250px;
  padding: 1.5rem;
  background: #c0d4e2; /* soft blue */
  border: 2px solid #d49a34;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.key-container:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
}

.key-container h4 {
  font-size: 1rem;
  color: #d49a34; 
  margin-bottom: 0.6rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.key-content {
  font-size: 1.5rem;
  color: #222;
  background: #fff;
  padding: 0.8rem 1.5rem;
  border-radius: 10px;
  border: 1px solid #edc067; 
  transition: all 0.3s ease;
}

.key-content:hover {
  background-color: #edc067;
  color: #fff;
  transform: scale(1.05);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 600px) {
  .container {
    padding: 1.5rem;
  }

  .key-container {
    min-width: 200px;
  }

  .key-content {
    font-size: 1.2rem;
  }
}