.responsive-grid {
  display: grid;
  gap: 10px;
  padding: 10px;
  background: #f5f5f5;
  border-radius: 6px;
  grid-template-areas: 
    "header"
    "nav"
    "main"
    "aside"
    "footer";
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .responsive-grid {
    grid-template-areas: 
      "header header"
      "nav main"
      "aside main"
      "footer footer";
    grid-template-columns: 200px 1fr;
  }
}

@media (min-width: 1024px) {
  .responsive-grid {
    grid-template-areas: 
      "header header header"
      "nav main aside"
      "footer footer footer";
    grid-template-columns: 180px 1fr 200px;
  }
}

.resp-header { grid-area: header; background: #e74c3c; color: white; padding: 20px; text-align: center; border-radius: 4px; }
.resp-nav { grid-area: nav; background: #3498db; color: white; padding: 20px; text-align: center; border-radius: 4px; }
.resp-main { grid-area: main; background: #2ecc71; color: white; padding: 20px; text-align: center; border-radius: 4px; min-height: 150px; }
.resp-aside { grid-area: aside; background: #f39c12; color: white; padding: 20px; text-align: center; border-radius: 4px; }
.resp-footer { grid-area: footer; background: #9b59b6; color: white; padding: 20px; text-align: center; border-radius: 4px; }