@import url('https://fonts.googleapis.com/css?family=Noto+Sans+JP');

body {
  font-family: 'Helvetica', sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f7f9fc;
  color: #333;
  font-family: 'Noto Sans JP', sans-serif;
}

.h5-blog-center {
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.h4-blog {
  padding-top: 2rem;
  padding-bottom: 1rem;
}

.h3-blog {
  padding-bottom: 2rem;
}

header {
  background-color: #2c3e50;
  color: white;
  padding: 2rem;
  text-align: center;
}

header a {
  color: white;
  text-decoration: none;
}

header a:hover {
  color: #1abc9c;
}

nav {
  background-color: #34495e;
  text-align: center;
  padding: 1rem;
}

nav a {
  color: white;
  text-decoration: none;
  margin: 0 1rem;
  font-weight: bold;
}

nav a:hover {
  text-decoration: underline;
}

main {
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1rem;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.introduction {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  flex-wrap: wrap;
}

.text {
  flex: 1;
  margin-right: 20px;
  min-width: 250px;
}

.photo img {
  width: 200px;
  height: auto;
  border-radius: 20%;
  margin-top: 1rem;
}

footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
  background-color: #ecf0f1;
  color: #555;
  margin-top: 2rem;
}

ul {
  padding-left: 1.2rem;
  padding-bottom: 10px;
}

li {
  padding-left: 1.2rem;
}

a {
  color: #2980b9;
}

a:hover {
  color: #1abc9c;
}

/* ここからスマホ向けの調整 */
@media screen and (max-width: 768px) {
  .introduction {
    flex-direction: column;
    text-align: left;
  }

  .text {
    margin-right: 0;
    margin-bottom: 1rem;
  }

  .photo img {
    margin: 0 auto;
  }

  ul {
    text-align: left;
    padding-left: 1.2rem;
  }

  li {
    text-align: left;
  }

  nav {
    text-align: center;
  }
}