@charset "utf-8";

/* -----------------------------------
  Default Styling
----------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Helvetica", "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    "Arial", "Yu Gothic", "Meiryo", sans-serif;
  line-height: 1.8;
}

h1 {
  margin-top: 0;
  margin-bottom: 0;
  font-weight: 500;
}

h2,
h3 {
  margin-top: 0;
  font-weight: 700;
}

h3 {
  border-left: dotted 5px skyblue;
  padding-left: 0.5rem;
}

h4 {
  border-bottom: solid darkblue 1px;
  padding-bottom: 3px;
}
ul {
  margin: 0;
  padding-left: 0;
  list-style: none;
}

main p {
  line-height: 1.8;
}

a {
  text-decoration: none;
  color: darkblue;
  transition: all 0.15s ease-in-out;
}

a:hover {
  color: blue;
}

/* -----------------------------------
  Reusable Styling
----------------------------------- */

.subtitle {
  margin-top: 0;
  margin-bottom: 0;
}
.container {
  max-width: 1280px;
  margin: 0 auto;
}

/* -----------------------------------
  Header
----------------------------------- */

.header {
  background-color: #dcdcdc;
  text-align: center;
}
.sumbnail {
  line-height: 1;
  padding-bottom: 0;
}
.sumbnail img {
  width: 100%;
  height: auto;
}

/* -----------------------------------
  Main
----------------------------------- */
.topics {
  margin-bottom: 30px;
}
.topics > li {
  list-style-type: circle;
  margin-left: 1rem;
}
dd {
  margin-inline-start: 1.5rem;
}
dd:last-child {
  margin-bottom: 30px;
}
dt {
  position: relative;
  padding-left: 1.5rem;
  font-weight: bold;
}
dt a {
  color: darkblue;
}
dt a:hover {
  color: blue;
}

dt::before {
  content: "";
  top: 50%;
  left: 0;
  position: absolute;
  width: 0.8rem;
  height: 0.5rem;
  border-top-width: 0;
  border-right-width: 0;
  border-left: 2px solid green;
  border-bottom: 2px solid green;
  -webkit-transform: translateY(-80%) rotate(-45deg);
  transform: translateY(-80%) rotate(-45deg);
}

.items > li,
.broucher > li {
  padding: 10px;
  margin-bottom: 10px;
  width: 250px;
  font-weight: bold;
}
.items > li {
  background-color: skyblue;
}
.broucher > li {
  background-color: lightsalmon;
}
.items > li > a,
.broucher > li > a {
  display: block;
  width: 100%;
  height: 100%;
  color: white;
}
.items > li:hover {
  background-color: lightblue;
}
.broucher > li:hover {
  background-color: lightpink;
}

.local_cruise dl dd {
  margin-bottom: 20px;
}
.column_border {
  border: solid 1px #666666;
  padding: 1rem;
  margin-left: 1.5rem;
}
.sitemap > ul {
  margin-left: 1rem;
}
.sitemap > ul > ul {
  margin-left: 2rem;
}
/* -----------------------------------
  Footer
----------------------------------- */

.footer {
  background-color: #dcdcdc;
  position: relative;
}
.copyright,
.homeurl {
  text-align: center;
}

.gototop {
  position: absolute;
  top: 0;
  right: 3%;
  background-color: lightgreen;
  padding: 18px 15px;
  border-radius: 50% 50%;
  margin-top: -65px;
}
.gototop a {
  color: white;
  font-weight: bold;
  display: block;
  width: 100%;
  height: 100%;
}
.footer_menu {
  display: flex;
  margin-bottom: 30px;
}
.footer_menu li {
  margin-right: 20px;
}