body, html {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Source Sans Pro", Arial, sans-serif;
  background-color: #1c1f4f;
  min-height: 100vh;
}

h1 {
  color: #fff;
  text-align: center;
  margin-top: 30px;
}

.main-container {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 40px;
  margin-top: 40px;
}

.left-section {
  flex: 1 1 200px;
  min-width: 200px;
  max-width: 300px;
  background: rgba(255,255,255,0.12);
  border-radius: 12px;
  padding: 24px;
  margin-right: 10px;
}

.content-sections {
  display: flex;
  flex-direction: column;
  flex: 2 1 400px;
  min-width: 420px;
  max-width: 700px;
  gap: 24px;
}

.right-section {
  background: #e3f0fa;
  border-radius: 12px;
  box-shadow: 0 0 16px 0 rgba(0,0,0,0.13);
  padding: 24px;
  min-height: 200px;
}

.center-section {
  background: #a8ace3;
  border-radius: 12px;
  box-shadow: 0 0 16px 0 rgba(0,0,0,0.08);
  padding: 24px;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

button {
  padding: 10px 20px;
  font-size: 16px;
  margin-top: 20px;
}

p {
  font-size: 18px;
  color: #00529B;
  margin-top: 20px;
}