* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: sans-serif;
  text-align: center;
  padding: 15px;
}

.box {
  border: 2px solid;
  padding: 20px;
  margin-bottom: 10px;
  font-weight: bold;
}

.top-header {
  background-color: #f5eef8;
  border-color: #d2b4de;
  color: #4a235a;
}
.navigation {
  background-color: #e8f8f5;
  border-color: #a3e4d7;
  color: #117a65;
}
.footer {
  background-color: #f5eef8;
  border-color: #d2b4de;
  color: #4a235a;
}

.main-wrapper {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
}

.sidebar {
  width: 25%;
  border: 2px solid #85c1e9;
  background-color: #d6eaf8;
  padding: 20px;
  font-weight: bold;
  color: #21618c;
}

.right-column {
  width: 75%;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.header {
  border: 2px solid #f5b7b1;
  background-color: #fadbd8;
  padding: 20px;
  height: 100px;
  font-weight: bold;
  color: #c0392b;
}
.content {
  border: 2px solid #aed6f1;
  background-color: #ebf5fb;
  padding: 20px;
  flex: 1;
  min-height: 250px;
  font-weight: bold;
  color: #2874a6;
}