@charset "UTF-8";
* {
  margin: 0;
  padding: 0;
  list-style: none;
  text-decoration: none;
  box-sizing: border-box;
}

img {
  width: 100%;
  height: auto;
  vertical-align: bottom;
}

header {
  background: #EEE;
}

header h1 {
  font-size: 2rem;
  text-align: center;
  padding: 1rem;
}

nav ul {
  padding-bottom: 1rem;
  text-align: center;
}

nav ul li {
  display: inline-block;
  margin: 0 10px;
}

nav ul li a {
  font-weight: bold;
  color: #333;
}
main {
  padding: 1rem;
  max-width: 1200px;
  margin: 0 auto;
  flex-grow: 1;
  display: grid;
  grid-template-columns: 1fr;
}

section {
  background: #FFF;
    padding: 20px;
}
/*
.sec01 {
  grid-row-start: 1;
  grid-row-end: 2;
  grid-column-start: 1;
  grid-column-end: 2;
}

.sec02 {
  grid-row-start: 1;
  grid-row-end: 2;
  grid-column-start: 2;
  grid-column-end: 3;
}

.sec03 {
  grid-row-start: 2;
  grid-row-end: 3;
  grid-column-start: 1;
  grid-column-end: 3;
}
*/  
.container{
  /*display: flex; */
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

/* 
  gap: 20px;
   flex-direction: row-reverse;
}

.column-img {
  flex: 1;
}

.column-text {
  flex: 2;
}
 */
footer {
  background: #333;
    color: #FFF;
  text-align: center;
  padding: 1rem;
  width: 100%;
}
/*タブレット用*/
@media all and (min-width: 768px) {
  .container {
    grid-template-columns: 1fr 1fr;
  }
}
/*コンピュータ用*/
@media all and (min-width: 1024px) {
    header h1 {
    font-size: 4rem;
  }
  main {
    grid-template-columns: 1fr 1fr;
  }

  .sec01 {
    grid-row-start: 1;
    grid-row-end: 2;
    grid-column-start: 1;
    grid-column-end: 2;
  }

  .sec02 {
    grid-row-start: 1;
    grid-row-end: 2;
    grid-column-start: 2;
    grid-column-end: 3;
  }

  .sec03 {
    grid-row-start: 2;
    grid-row-end: 3;
    grid-column-start: 1;
    grid-column-end: 3;
  }

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