@charset "UTF-8";

:root {
    --color-text: #f9f9f9;
    --color-text-secondary: #1c1c1c;
    --color-primary: #000e52;
    --color-primary-2: #9e20b4;
    --color-primary-3: #5c8aff;
    --color-accent: #fff6b1;

    --font-en: "Lexend Giga";
}

html {
    font-family: "Zen Kaku Gothic New", sans-serif;
    font-weight: 500;
    font-feature-settings: "palt";
    color: var(--color-text);
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height, 0px);
}

body {
    position: relative;
    background: url("/images/noise.avif") repeat, linear-gradient(var(--color-text-secondary), var(--color-primary), var(--color-primary-2), var(--color-primary-3));
    z-index: 0;
}

body::after {
    position: absolute;
    content: "";
    display: block;
    inset: 0;
    width: 1000px;
    aspect-ratio: 406 / 1302;
    margin-inline: auto;
    background: url(/images/bg_star.svg) top center / cover no-repeat;
    filter: blur(5px);
}

img {
    display: block;
    width: 100%;
    height: auto;
}

/* header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
}

.header__nav {
    width: 85%;
    margin-inline: auto;
    padding-block: 1.75rem;
}

.header__list {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 5rem;
    margin-left: auto;
}

.header__item {
    font-family: var(--font-en);
    font-size: 1.5rem;
}

/* main */
.main {
    position: relative;
    height: 2000px;
    z-index: 0;
}

.top {
    position: relative;
    display: grid;
    grid-template-columns:
    minmax(calc((100vw - 1440px) / 2), 1fr)
    minmax(0, 1440px)
    minmax(calc((100vw - 1440px) / 2), 1fr);
    align-items: center;
    column-gap: 1rem;
    height: 100vh;
    margin-inline: auto;
}

.top::before {
    position: absolute;
    content: "";
    display: block;
    top: 0;
    left: 0;
    width:35%;
    aspect-ratio: 726 / 538;
    background: url(/images/yellow_top.avif) center / contain no-repeat;
    /* opacity: 0.7; */
    filter: blur(3px);
    z-index: -1;
}

.top__layout {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    align-items: center;
    column-gap: 1rem;
    grid-column: 2;
}

.top__title {
    grid-column: 1 / 3;
    height: auto;
    padding-top: 5rem;
    writing-mode: vertical-rl;
    -ms-writing-mode: tb-rl;
    font-size: 5rem;
    font-weight: 900;
    line-height: 1.5;
    letter-spacing: 2rem;
    white-space: nowrap;
}

.top__text {
    grid-column: 4 / 7;
    font-family: var(--font-en);
    font-size: 1.25rem;
}