@charset "utf-8";

/* ---common--- */
:root {
    --primarybase:#F8F8F8;
    --secondarybase:#FFF;
    --secondarygray:#D9D9D9;
    --textcolor:#333;

}
* {
    padding: 0;
    margin: 0;
}
html {
    font-size: 62.5%;
	scroll-behavior: smooth;
}
body  {
    font-family: 
    'Noto Sans JP',
    'YuGothic','Yu Gothic',
    'メイリオ',
    sans-serif;
    font-style: normal;
    color: var(--textcolor);
    }
a {
    text-decoration: none;
}
ul,li {
    list-style: none;
}
img {
    max-width: 100%;
    height: auto;
    vertical-align: bottom;
}
a:hover{
  color:var(--secondarygray);
}
a[target="_blank"] {
    display: inline-block;
    position: relative;
    transition: color 0.3s ease;
}

a[target="_blank"]::after {
content: "";
position: absolute;
top: 50%;
transform: translateY(-50%);
right: -1.6em;
width: 1em;
height: 1.6em;
background-image: url("../img/link.svg");
background-size: contain;
background-repeat: no-repeat;
}

.main {
    margin-top: 8vh;
}
/* fade in */
.fade-block {
    transition: 1.6s;
    opacity: 0;
    transform: translateY(20px);
}
.fade-block.show {
    opacity: 1;
    transform: translateY(0);
}

/* header */
.logo {
    font-size: 2.6rem;
    line-height: 100%;
}
.header {
    background-color: var(--secondarybase);
    width: 100%;
    height: 8vh;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
}
.header-inner {
    display: flex;
    position: relative;
    justify-content: space-between;
    height: inherit;
    padding: 0 6%;
    align-items: center;
}
/* humberger */
.fade-hamburger-wrapper {
position: fixed;
  right: 20px;
  z-index: 1000;
  width: 60px;
  height: 60px;
  background: transparent;
  cursor: pointer;
}

.fade-hamburger-block {
position: relative;
  height: 20px;
}

.fade-hamburger-line {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--textcolor);
  transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.fade-hamburger-line:nth-child(1) { 
    top: 0; 
}
.fade-hamburger-line:nth-child(2) { 
    top: 12px; 
}
.fade-hamburger-wrapper.active .fade-hamburger-line {
    background-color: var(--primarybase);
}

.fade-hamburger-wrapper.active .fade-hamburger-line:nth-child(1) {
    transform: translateY(10px) rotate(45deg);
}

.fade-hamburger-wrapper.active .fade-hamburger-line:nth-child(2) {
    transform: translateY(-2px) rotate(-45deg);
}

.fade-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  visibility: hidden;
  z-index: 900;
  transition: opacity 0.4s ease, visibility 0s linear 0.4s; 
  opacity: 0;
}

.fade-nav-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--secondarygray);
  opacity: 0;
  transition: ease-in-out 0.4s;
}

.fade-nav.active {
  visibility: visible;
  /* chatgpt */
  opacity: 1;
  transition: opacity 0.4s ease, visibility 0s; 

}

.fade-nav.active .fade-nav-bg {
  opacity: 1;
}

.fade-nav-wrapper {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 100%;
  height: 100%;
}

.fade-nav-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.fade-nav-itmes {
  position: relative;
  padding: 0 6%;
  margin-top: 24px;
  opacity: 0;
  transform: translateY(20px);
  transition: ease-in-out 0.5s;
}

.fade-nav.active .fade-nav-itmes {
  opacity: 1;
  transform: translateY(0);
}

.fade-nav.active .fade-nav-itmes:nth-child(1) { transition-delay: 0.2s; }
.fade-nav.active .fade-nav-itmes:nth-child(2) { transition-delay: 0.3s; }
.fade-nav.active .fade-nav-itmes:nth-child(3) { transition-delay: 0.4s; }
.fade-nav.active .fade-nav-itmes:nth-child(4) { transition-delay: 0.5s; }


.fade-nav-link {
  display: inline-block;
  color: var(--primarybase);
  font-size: 2.8rem;
  font-weight: 700;
  line-height: 200%;
  transition: color 0.3s ease;
}

.fade-nav-link:hover {
  color: var(--textcolor);
}
@media screen and (min-width:769px) {
    .fade-hamburger-wrapper {
        display: none;
    }
    .fade-nav {
        position: static;
        width: auto;
        height: auto;
        visibility: visible;
        opacity: 1;
        background: none;
        display: flex;
        align-items: center;
        justify-content: flex-end;;
        transition: none;
    }
    .header-inner {
        padding: 0 18%;
    }
    .fade-nav-bg {
        display: none;
    }
    .fade-nav-wrapper {
        display: flex;
        align-items: center;
        height: auto;

    }
    .fade-nav-list {
        display: flex;
        margin-top: 0;
        padding: 0;
        list-style: none;
    }
    .fade-nav-itmes {
        opacity: 1;
        transform: none;
        margin-top: 0;
        padding-left: 54px;
    }
    .fade-nav-link {
        font-size: 1.4rem;
        font-weight: 400;
        color: var(--textcolor);
        transition: color 0.3s ease;
      }
    .fade-nav-link:hover {
        color: var(--secondarygray);
    }
    .nav-itemTop {
        display: none;
    }

}
/* category */
.category {
    display: flex;
    color: var(--secondarygray);
    font-size: 1.2rem;
    line-height: 150%;
    margin-top: 28px;
    gap: 4px;
}
.category li {
    border: 1px solid #D9D9D9;
    border-radius: 8px;
    padding: 0 8px;
}
@media screen and (min-width:769px) {
    .category {
        font-size: 1.4rem;
    }
}
/* footer */
.footer {
    margin-top: 100px;
    margin-bottom: 36px;
    text-align: center;
}
.footer small {
    font-size: 1rem;
    line-height: 150%;
}
@media screen and (min-width:769px) {
    .footer {
        margin-top: 200px;
        margin-bottom: 28px;
        text-align: center;
    }
    .footer small {
        font-size: 1.2;
    }
}