html {
    height: 100%;
    
}

body {
    margin: 0px;
    padding: 0px;

    font-family: "Noto Sans JP", sans-serif;
    font-optical-sizing: auto;
    font-weight: 300;
    font-style: normal;
    background-color: rgba(250,250,245);
    display: flex;
    flex-direction: column;
    height: 100%;
}

header {
    position: sticky;
    top: 0;
    background-color: white;
    margin: 0px;
    padding: 0;
    box-shadow: 0 0 10px 2px rgba(0,0,0,0.4);
    z-index: 999;
}

header h1 {
    margin: 0px;
    padding: 0.2rem 1rem;
    background-color: black;
    color: white;
    display: inline-block;
    font-weight: 700;
}
header p {
    display: inline-block;
    margin: auto auto 0 auto;
}

main section:not(.hero):not(.reset) {
    margin: 0 1rem;
    background-color: rgba(255,255,255);
    border-radius: 5px;
    box-shadow: 0 0 10px 2px rgba(0,0,0,0.1);
    padding: 0 0.5rem 10px 0.5rem;
}

footer *{
    margin: 16px 0 0 0;
    padding: 1rem;
    background-color: rgb(35, 64, 89);
    color: white;
    
}
.hero {
    height: 20rem;
    background-image: url(../static/image/portal/20251201233529_1.jpg);
    background-size: cover;
    background-position: center;
    position: relative;
    margin-bottom: 20px;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.2);
}
.hero h2 {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    margin: 0;
    color: white;
    font-size: 5vw;
    white-space: nowrap;
    font-weight: 300;
}
.creation h3 {
    padding-left: 0.4rem;
    margin-bottom: 0;
    position: relative;
}
.creation h3::before {
    content: "";
    position: absolute;
    left: -0.1rem;
    top: 0.3rem;
    width: 0.3rem;
    height: 1.3rem;
    background:rgb(35, 64, 89);
    border-radius: 2px;
}
.creation p {
    margin-top: 0;
}
.inline-icon {
    width: 1rem;
    margin: 0 0.4rem;
}
.no-icon {
    margin-left: 1.8rem;
}
.creation .continer {
    background-color: white;
    transition: 0.5s ease;
    padding: 0.5px 0 1px 0;
}
.creation .continer:hover {
    background-color: white;
    border-radius: 5px;
    box-shadow: 0 0 10px 3px rgba(0, 0, 0, 0.2);
    transform: scale(1) translateY(-5px);
}

.div-link {
    text-decoration: none;
    display: block;
    color: inherit;
}

.navi {
    margin-top: 30px;
}
.navi-continer {
    display: flex;

}
.navi-continer p {
    font-size: 2rem;
    margin: 0 1rem;
    color: black;
    font-weight: 400;
}
.navi a {
    text-decoration: none;
}
.changelog hr {
    background-color: #234059;
    border: none;
    height: 2px;
}
.logo {
    display: inline-block;
    font-size: 2em;
    font-weight: bold;
    margin: 0.67em 0;
    margin: 0px;
    padding: 0.2rem 1rem;
    background-color: black;
    color: white;
    display: inline-block;
    font-weight: 700;
}