html {
  scroll-behavior: smooth;
}


@font-face {
  font-family: 'Zen';
  src: url('https://raw.githubusercontent.com/shiratama-kotone/yuyuyu-homepage/main/ZenMaruGothic-Regular.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
}

body {
  font-family: 'Zen', sans-serif;
  background-color: #e0f7fa;
  color: #003366;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-weight: 100;
}
header {
  background-color: #ffc1e0;
  color: white;
  padding: 5px 0; /* 上下の余白を調整 */
  text-align: center;
}

footer {
  background-color: #ffc1e0;
  color: white;
  text-align: center;
  padding: 5px 0; /* 上下の余白を調整 */
  width: 100%;
  margin-top: auto;
  position: relative; /* 必要に応じて調整 */
}

pre {
  background-color: #f4f4f4;
  color: #000000;
  padding: 10px;
  border: 5px solid #003366;
  white-space: pre-wrap;
  word-wrap: break-word;
}

h1.index1 {
  display: inline-block;
  padding-left: 10px; /* 横方向に少し開ける */
  padding-right: 10px; /* 横方向に少し開ける */
  padding-top: 10px; /* 上方向に少し開ける */
  padding-bottom: 10px; /* 下方向に少し開ける */
  border: 3px dotted #ffc1e0; /* 枠線 */
  border-radius: 15px; /* 角を丸める */
}




.content {
  flex: 1;
  margin: 20px;
}
a {
  color: inherit;
  text-decoration: underline;
}
a:hover {
  text-decoration: underline;
}
footer .sitemap {
  margin-top: 1px;
}
footer .sitemap ul {
  list-style: none;
  padding: 0;
}
footer .sitemap li {
  display: inline;
  margin: 0 10px;
}
input, button {
  padding: 10px;
  margin: 10px;
  font-size: 16px;
  font-family: 'Arial', sans-serif;
}

button {
  cursor: pointer;
  background-color: #ffc1e0;
  color: white;
  font-family: 'Arial', sans-serif;
}

button:hover {
  background-color: #ffe6f0;
  font-family: 'Arial', sans-serif;
}

hr {
  width: 100%;
  height: 1px;
  background-color: #003366;
  border: none;
}

label {
            display: block;
            margin-top: 10px;
        }

input, select, textarea, {
  width: 100%;
  margin-top: 5px;
  font-family: 'Arial', sans-serif;
        }


select {
  font-family: 'Arial', sans-serif;
}

table {
    font-size: 20px;
  }

th, td {
  padding: 10px;
  text-align: center;
  border: 3px solid;
}

thead {
  background-color: #f9f9f9;
}

.blink {
  color: red;
  font-weight: bold;
  animation: blink 1s infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

.clock {
      font-size: 300px;
      font-family: Azuki, sans-serif;
      text-align: center;
    }