img {
    width: 100%;
}

html {
    scroll-behavior: smooth;
}

:root {
    --black-color: #0d151c;
    --white-color: #d6d2ce;
}


body {
    color: var(--black-color);
    font-family: "Noto Sans JP", sans-serif;
    font-size: 16px;
    font-weight: 400;
    letter-spacing: .03em;
    position: relative;
    font-feature-settings: "palt";
}


/* 

  header 

*/

header {
    position: fixed;
    top: 40px;
    left: 40px;
    display: flex;
    gap: 40px;
    z-index: 1000;
    align-items: baseline;
}

header svg {
    width: 180px;
}

header nav ul {
    display: flex;
    gap: 10px;
}

header nav ul li {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .03em;
}

@media (max-width: 640px) {
    header {
        top: 20px;
        left: 20px;
    }
}

/* 

  footer 

*/

footer ._copyright {
    color: var(--main-color);
    padding: 20px;
    text-align: center;
}

section .contnets {
    max-width: 1000px;
    margin-inline: auto;
    padding-inline: 20px;
}


section.top {
    width: 100vw;
    height: 100vh;
    display: flex;
    position: relative;
}

section.top ._fixed {
    position: fixed;
    z-index: -1;
}

section.top ._catch {
    position: absolute;
    top: 70%;
    left: 50%;
    transform: translate(-50%, -50%);
}

section.top ._catch svg {
    width: 150px;
    fill: var(--white-color);
}

section.top img {
    width: 100vw;
    height: 100vh;
    object-fit: cover;
}

section.company {
    padding-inline: 20px;
}

section.company .contnets {
    padding: 40px 24px;
    background-color: rgb(36 35 30 / 80%);
    border-radius: 6px;
    box-shadow: 2px 2px 6px rgba(0 0 0 / 30%);
    display: flex;
    justify-content: space-between;
}

section.company .contnets h2 {
    font-size: 14px;
    font-weight: 300;
    letter-spacing: 1em;
    color: var(--white-color);
    writing-mode: vertical-rl;
}

section.company .contnets dl {
    margin: 0;
    width: 80%;
}

section.company .contnets dt {
    font-size: 16px;
    font-weight: 600;
    color: #a5946c;
    border-bottom: 1px solid;
}

section.company .contnets dd {
    font-size: 14px;
    margin: 10px 10px 20px;
    line-height: 1.6;
    color: var(--white-color);
}

section.company .contnets dd ul {
    padding-left: 20px;
    margin: 8px 0;
}

section.company .contnets dd ul li {
    list-style: disc;
    margin-bottom: 6px;
}