/* Basic reset */
body {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Arial, sans-serif;
}

/* Page grid */
.page {
  display: grid;
  grid-template-columns: 1fr 3fr 1fr;
  grid-template-rows: auto 1fr;
  grid-template-areas:
    "header header header"
    "left content right";
  min-height: 100vh;
  gap: 1rem;
  padding: 1rem;
}

/* Header */
.header {
  grid-area: header;
  background: #333;
  color: white;
  padding: 1rem;
  text-align: center;
}

/* Sidebars */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.left {
  grid-area: left;
}

.right {
  grid-area: right;
}

/* Sidebar boxes */
.box {
  background: #e0e0e0;
  padding: 1rem;
  border-radius: 4px;
  text-align: center;
}

/* Main content */
.content {
  grid-area: content;
  background: #f5f5f5;
  padding: 1.5rem;
  border-radius: 4px;
}