* {
  box-sizing: border-box;
}

body {
  min-width: 375px;
  margin: 0;
}

.container {
  display: grid;
  max-width: 1280px;
  padding: 0 15px;
  margin: 0 auto;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.wrapper {
  display: grid;
  grid-template-areas:
    "header header header"
    "aside main main"
    "footer footer footer";
  grid-template-columns: 200px 1fr;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
}

.header { grid-area: header; }
.aside  { grid-area: aside; min-height: 100vh; width: 200px; }
.main   { grid-area: main; }
.footer { grid-area: footer; }

.header {
  background-color: #f00;
  min-height: 100px;
}

.aside {
  background-color: #e2e20d;
  width: 200px;
}

.main {
  background-color: #31bb0a;
  padding-top: 30px;
  padding-bottom: 30px;
}

.article {
  background-color: #de6e05;
  min-height: 200px;
}

.footer {
  background-color: #0b2fe2;
  min-height: 250px;
}

@media (min-width: 1200px) {
  .wrapper {
    grid-template-columns: 250px 1fr;
  }
  .aside {
    width: 250px;
  }
}

@media (max-width: 780px) {
  .wrapper {
    grid-template-areas:
      "header"
      "main"
      "footer";
    grid-template-columns: 1fr;
  }
  .aside {
    display: none;
  }

  .container {
    grid-template-columns: 1fr;
  }

  .aside {
    display: none;
  }

}