/* ===== tokens ===== */
:root {
  --c-primary: #1F3A70;
  --c-accent: #F08A24;
  --c-accent-soft: #F6B048;
  --c-accent-stripe: #F5A54A;
  --c-ink: #313232;
  --c-paper: #F9F7F2;
  --c-white: #FFFFFF;
  --c-scrim: 23, 36, 64;
  --ff-jp: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic', sans-serif;
  --ff-en: 'Figtree', 'Helvetica Neue', Arial, sans-serif;
  --ff-fv: 'Noto FV', 'Noto Sans JP', 'Hiragino Sans', sans-serif;
}

@font-face {
  font-family: 'Noto FV';
  font-weight: 900;
  font-style: normal;
  font-display: block;
  src: url(../fonts/noto-fv-900.woff2) format('woff2');
}

/* ===== unit system: 1rem = 1px @360 (SP) / @1440 (PC) ===== */
html { font-size: calc(100vw / 360); -webkit-text-size-adjust: 100%; }
@media (min-width: 769px) { html { font-size: calc(100vw / 1440); } }

*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  min-width: 320px;
  overflow-x: clip;
  background: var(--c-paper);
  color: var(--c-ink);
  font-family: var(--ff-jp);
  font-weight: 700;
  font-size: 16rem;
  line-height: 1.5;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
p, h1 { margin: 0; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
::selection { color: #fff; background: #3A4552; }
:focus-visible { outline: 2rem solid var(--c-primary); outline-offset: 3rem; }
.l-header :focus-visible { outline-color: var(--c-accent); }

.spOnly { display: inline; }
.pcOnly { display: none; }
@media (min-width: 769px) { .spOnly { display: none; } .pcOnly { display: inline; } }

.header__company, .header__btnEn, .fv__brand, .fv__calling { font-family: var(--ff-en); }

/* ===== header (non-sticky) ===== */
.l-header { position: absolute; top: 0; left: 0; z-index: 999999; width: 100%; }
.header {
  position: relative;
  display: flex;
  align-items: center;
  height: 64rem;
  background: var(--c-ink);
}
.header__company {
  padding-left: 16rem;
  font-size: 10rem; font-weight: 700; line-height: 1.4; letter-spacing: 3rem;
  color: #fff; white-space: nowrap;
}
.header__company span { display: block; }
.header__btn {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  flex: none; width: 72rem; padding: 10rem 8.5rem; margin-right: 10rem;
  border-radius: 2rem; color: var(--c-ink); transition: opacity .4s;
}
.header__btn--entry { margin-left: auto; background: var(--c-accent); }
.header__btn--seminar { margin-left: auto; background: var(--c-accent); padding-inline: 4rem; }
.header__btnEn { font-size: 15rem; font-weight: 700; line-height: 1; letter-spacing: 1.5rem; text-transform: uppercase; white-space: nowrap; }
.header__btn--seminar .header__btnEn { font-size: 12rem; letter-spacing: .6rem; }
.header__btnJp { margin-top: 6rem; font-size: 10rem; font-weight: 700; line-height: .8; letter-spacing: .4rem; white-space: nowrap; }
.header__burger {
  flex: none; width: 62rem; height: 64rem; background: #fff;
  display: flex; align-items: center; justify-content: center;
}
.header__burgerLines, .header__burgerLines::before, .header__burgerLines::after {
  display: block; width: 16rem; height: 1.5rem; background: var(--c-primary);
}
.header__burgerLines { position: relative; }
.header__burgerLines::before, .header__burgerLines::after { content: ''; position: absolute; left: 0; }
.header__burgerLines::before { top: -5rem; }
.header__burgerLines::after { top: 5rem; }
.is-open .header__burgerLines { background: transparent; }
.is-open .header__burgerLines::before { top: 0; transform: rotate(45deg); }
.is-open .header__burgerLines::after { top: 0; transform: rotate(-45deg); }
.header__burger:focus-visible { outline-offset: -4rem; }

.header__nav {
  display: none;
  position: absolute; top: 80rem; left: 0; right: 0;
  margin: 0 16rem; padding: 28rem 20rem 28rem 40rem;
  background: var(--c-ink); border-radius: 2rem;
}
.is-open .header__nav { display: block; }
.header__nav a { display: block; padding: 20rem 0; font-size: 15rem; font-weight: 700; line-height: 1.4; letter-spacing: .06em; color: #fff; transition: opacity .4s; }

/* ===== FV ===== */
.l-fv { position: relative; }
.l-fv__bg {
  position: fixed; top: 0; left: 0; z-index: 0;
  width: 100%; height: 100vh; height: 100lvh;
  overflow: hidden;
}
.l-fv__bg picture { display: block; width: 100%; height: 100%; }
.l-fv__bg img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 0%; }
.l-fv__scrim {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(var(--c-scrim), 0) 0%, rgba(var(--c-scrim), 0) 55%, rgba(var(--c-scrim), .42) 80%, rgba(var(--c-scrim), .62) 100%);
}
.fv {
  position: relative; z-index: 1;
  min-height: 100vh; min-height: 100dvh;
  border-bottom: 20rem solid var(--c-paper);
}
.fv__copy {
  position: absolute; left: 0; right: 0; bottom: -4rem;
  width: 360rem; height: 490rem; margin: auto;
  font-family: var(--ff-fv); font-weight: 900; color: var(--c-primary);
}
.fv__copy > span { position: absolute; display: block; white-space: nowrap; }
.fv__brand { left: 120rem; top: -40rem; font-size: 8rem; font-weight: 700; letter-spacing: .2em; line-height: 1.5; }
.fv__brand span, .fv__calling span { display: block; }
.fv__motom { left: 136rem; top: 0; writing-mode: vertical-rl; font-size: 80rem; line-height: 1; letter-spacing: -.04em; }
.fv__yorimichi { left: 166rem; top: 206rem; writing-mode: vertical-rl; transform: skewY(-12deg); background: var(--c-accent); padding: 6rem 4rem; font-size: 26rem; line-height: 1.08; }
.fv__no { left: 166rem; top: 318rem; font-size: 30rem; line-height: 1; }
.fv__motom, .fv__no { -webkit-text-stroke: 3rem #fff; paint-order: stroke fill; }
.fv__calling { right: 200rem; top: 310rem; padding: 4rem 6rem 4rem 8rem; background: var(--c-primary); color: #fff; text-align: right; font-size: 7rem; font-weight: 700; letter-spacing: .14em; line-height: 1.45; }
.fv__tsukurite {
  left: 6rem; bottom: 0; color: #fff;
  font-size: 70rem; line-height: 1; letter-spacing: -.03em;
  transform: skewX(-6deg) scaleY(1.6); transform-origin: left bottom;
}
@media (max-width: 768px) and (min-aspect-ratio: 360/590) {
  .fv__copy { transform: scale(.82); transform-origin: bottom center; }
}

@media (min-width: 769px) {
  .l-fv__bg img { object-position: 64% 30%; }
  .fv__copy {
    --k: min(1cqh, .75cqw);
    inset: 72rem 0 20rem 0; width: auto; height: auto; margin: 0;
    container-type: size;
  }
  .fv__brand { left: calc(30cqw + 9 * var(--k)); top: calc(6 * var(--k)); font-size: calc(1.3 * var(--k)); }
  .fv__motom { left: calc(30cqw - 7.5 * var(--k)); top: calc(4 * var(--k)); font-size: calc(15 * var(--k)); }
  .fv__yorimichi { left: 37cqw; top: calc(47 * var(--k)); padding: calc(1.2 * var(--k)) calc(.9 * var(--k)); font-size: calc(5.2 * var(--k)); }
  .fv__no { left: 37cqw; top: calc(66 * var(--k)); font-size: calc(6 * var(--k)); }
  .fv__calling { right: 65cqw; top: calc(62 * var(--k)); padding: calc(.6 * var(--k)) calc(.9 * var(--k)); font-size: calc(1.2 * var(--k)); }
  .fv__tsukurite { left: 6cqw; bottom: calc(-1 * var(--k)); font-size: calc(20 * var(--k)); transform: skewX(-6deg) scaleY(1.45); }
}

/* ===== fixed banner ===== */
.l-fvBanner {
  position: fixed; z-index: 9;
  right: 4rem; bottom: calc(12rem + env(safe-area-inset-bottom));
  width: 170rem; height: 60rem;
  opacity: 0; visibility: hidden; transform: translateY(12rem);
  transition: opacity .4s ease, transform .4s ease, visibility 0s linear .4s;
}
.l-fvBanner.is-visible { opacity: 1; visibility: visible; transform: none; transition: opacity .4s ease, transform .4s ease; }
.l-fvBanner.is-visible:hover { opacity: .8; }
.l-fvBanner__band {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; justify-content: center;
  padding-left: 10rem;
  background: repeating-linear-gradient(-45deg, var(--c-accent-soft) 0 7rem, var(--c-accent-stripe) 7rem 14rem);
  color: var(--c-primary); font-weight: 900; line-height: 1;
}
.l-fvBanner__main { font-size: 22rem; }
.l-fvBanner__sub { margin-top: 3rem; font-size: 11rem; }
.l-fvBanner__img { position: absolute; right: -2rem; bottom: 0; width: 86rem; height: auto; }
@media (min-width: 769px) {
  .l-fvBanner { width: 340rem; height: 120rem; bottom: 4rem; }
  .l-fvBanner__band { padding-left: 20rem; }
  .l-fvBanner__main { font-size: 44rem; }
  .l-fvBanner__sub { margin-top: 6rem; font-size: 20rem; }
  .l-fvBanner__img { width: 172rem; }
}

/* ===== next section dummy (replaced later) ===== */
.l-dummy { position: relative; z-index: 1; min-height: 100vh; padding: 80rem 22rem; background: var(--c-paper); }
.l-dummy__text { margin-bottom: 40rem; font-size: 16rem; line-height: 2.5; letter-spacing: .04em; }

/* ===== button (shared component, swallow icon) ===== */
.button { display: inline-flex; width: 100%; max-width: 320rem; max-height: 65rem; align-items: center; }
.button__inner { position: relative; flex: 1; max-width: 256rem; height: 62.5rem; overflow: hidden; border: 1rem solid var(--c-primary); }
.button__text {
  position: absolute; top: 0; width: 100%; padding: 21rem 0; transform: translateY(-2rem);
  text-align: center; color: var(--c-primary); font-size: 16rem; font-weight: 700; line-height: 1.4; letter-spacing: .04em;
  transition: all .4s;
}
.button__text:nth-of-type(1) { left: -100%; }
.button__text:nth-of-type(2) { left: 0; }
.button__icon { position: relative; flex: none; width: 64rem; height: 62.5rem; background: var(--c-primary); border: 1rem solid var(--c-primary); }
.button .swallow { position: absolute; left: 20rem; top: 21rem; width: 20rem; height: 20rem; fill: #fff; transition: transform .4s; }
.button:hover .button__text, .button:focus-visible .button__text { background: var(--c-primary); color: #fff; }
.button:hover .button__text:nth-of-type(1), .button:focus-visible .button__text:nth-of-type(1) { left: 0; }
.button:hover .button__text:nth-of-type(2), .button:focus-visible .button__text:nth-of-type(2) { left: 100%; }
.button:hover .swallow, .button:focus-visible .swallow { transform: translateX(5rem); }
@media (min-width: 769px) { .button__text { font-size: max(16rem, 14px); } }

/* ===== header PC ===== */
@media (min-width: 769px) {
  .header { height: auto; padding: 12rem 0; }
  .header__company { padding-left: 40rem; margin-right: 277rem; font-size: 11rem; letter-spacing: 2.75rem; }
  .header__nav { display: block; position: static; margin: 0; padding: 0; background: none; border-radius: 0; }
  .header__nav ul { display: flex; }
  .header__nav a { padding: 13.5rem 20rem; }
  .header__btn { width: 160rem; height: 48rem; padding: 0; margin-right: 12rem; border-radius: 4rem; }
  .header__btn--seminar { padding-inline: 0; }
  .header__btn--entry { order: 3; }
  .header__btn--seminar { order: 4; }
  .header__nav { order: 2; }
  .header__btnEn, .header__btn--seminar .header__btnEn { font-size: 16rem; letter-spacing: .1em; }
  .header__btnJp { margin-top: 4rem; font-size: 13rem; letter-spacing: .52rem; line-height: 1; }
  .header__burger { display: none; }
}

@media (hover: hover) {
  .header__btn:hover, .header__nav a:hover { opacity: .5; }
}
@media (prefers-reduced-motion: reduce) {
  .l-fvBanner, .l-fvBanner.is-visible { transition: none; }
  .button__text { transition: background-color .2s, color .2s; }
  .button:hover .button__text:nth-of-type(1), .button:focus-visible .button__text:nth-of-type(1) { left: -100%; }
  .button:hover .button__text:nth-of-type(2), .button:focus-visible .button__text:nth-of-type(2) { left: 0; }
}