@charset "UTF-8";
:root {
  --font-ja: "Noto Sans JP", sans-serif;
  --font-display: "Bebas Neue", "Noto Sans JP", sans-serif;
  --font-en: "Roboto", "Noto Sans JP", sans-serif;

  --color-black: #1e1e1e;
  --color-white: #ffffff;
  --color-blue: #1e5fcf;
}
html {
  font-family: var(--font-ja);
  font-size: 100%;
  font-weight: 100;
  scroll-padding-top: 80px;
  scroll-behavior: smooth;
}
body {
  background-color: transparent;
}
.site-bg-video {
  position: fixed;
  inset: 0;
  width: 50vw;
  height: 50vh;
  -o-object-fit: cover;
  object-fit: cover;
  z-index: -2;
  pointer-events: none;
  margin: 0 auto;
  top: 300px;
}
.site-bg-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(255, 255, 255, 0.1);
  z-index: -1;
  pointer-events: none;
}

[data-animate] {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}
[data-animate="fade-left"] {
  transform: translateX(-40px);
}
[data-animate="fade-right"] {
  transform: translateX(40px);
}
[data-animate].is-visible {
  opacity: 1;
  transform: translate(0, 0);
}
[data-animate-delay="100"] {
  transition-delay: 0.1s;
}
[data-animate-delay="200"] {
  transition-delay: 0.2s;
}
[data-animate-delay="300"] {
  transition-delay: 0.3s;
}
[data-animate-delay="400"] {
  transition-delay: 0.4s;
}
@media (prefers-reduced-motion: reduce) {
  [data-animate] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}
.ttl h2 {
  font-weight: 500;
}
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.95);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition:
    box-shadow 0.4s ease,
    padding 0.4s ease;
  padding: 5px 0;
}
.header.is-scrolled {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  padding: 12px 0;
}

.header-wrap {
  font-weight: 400;
  font-style: normal;
  display: flex;
  justify-content: space-between;
  width: 98%;
  margin: 0 auto;
}
.header-wrap__logo {
  width: 250px;
  display: flex;
  align-self: center;
  font-size: 1rem;
  line-height: 1.5625rem;
  padding: 0 2% 0.5%;
  gap: 0.625rem;
}
.header-wrap__logo img {
  width: 100%;
}
.header-wrap__nav {
  display: flex;
  align-items: center;
  gap: 3.125rem;
  padding: 0 2%;
}

.header-wrap__nav__list {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 1.125rem;
  line-height: 1.375rem;
  font-family: var(--font-display);
  letter-spacing: 0.08em;
}
.header_home {
  display: none;
}
.header-wrap__nav__list__list a {
  color: #000000;
  text-decoration: none;
}

.header-wrap__nav__lang {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 1rem;
  line-height: 1.375rem;
  font-family: var(--font-display);
  letter-spacing: 0.08em;
}

.header-wrap__nav__lang__btn {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: #999;
  cursor: pointer;
}

.header-wrap__nav__lang__btn.is-active {
  color: #000;
  font-weight: 500;
}

.header-wrap__nav__lang__sep {
  color: #000;
}

.hamburger {
  display: none;
  position: relative;
  z-index: 110;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  align-self: center;
  margin-right: 15px;
}
.hamburger__line {
  position: absolute;
  left: 8px;
  width: 30px;
  height: 2px;
  background-color: #000;
  transition:
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    top 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.3s ease;
}
.hamburger__line:nth-child(1) {
  top: 8px;
}
.hamburger__line:nth-child(2) {
  top: 16.5px;
}
.hamburger__line:nth-child(3) {
  top: 27px;
}
.hamburger.is-open .hamburger__line:nth-child(1) {
  top: 19px;
  transform: rotate(45deg);
}
.hamburger.is-open .hamburger__line:nth-child(2) {
  opacity: 0;
}
.hamburger.is-open .hamburger__line:nth-child(3) {
  top: 19px;
  transform: rotate(-45deg);
}

.header-wrap__nav__logo {
  display: none;
}

@media (max-width: 720px) {
  .hamburger {
    display: block;
  }
  .header-wrap {
    width: 95%;
  }
  .header.is-scrolled {
    padding: 8px 0 5px 0;
  }
  .header-wrap__nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    background:
      radial-gradient(
        circle at top right,
        rgba(30, 95, 207, 0.12) 0%,
        rgba(30, 95, 207, 0) 60%
      ),
      radial-gradient(
        circle at bottom left,
        rgba(30, 95, 207, 0.08) 0%,
        rgba(30, 95, 207, 0) 50%
      ),
      rgba(255, 255, 255, 0.98);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 48px;
    padding: 0;
    opacity: 0;
    visibility: hidden;
    transition:
      opacity 0.5s ease,
      visibility 0.5s ease;
    z-index: 105;
  }
  .header_home {
    display: block;
  }
  .header-wrap__nav.is-open {
    opacity: 1;
    visibility: visible;
  }
  .header-wrap__nav__wave {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0;
    transform: scale(1.05);
    transition:
      opacity 0.8s ease 0.2s,
      transform 1.2s cubic-bezier(0.22, 1, 0.36, 1) 0.2s;
  }
  .header-wrap__nav.is-open .header-wrap__nav__wave {
    opacity: 0.5;
    transform: scale(1);
  }
  .header-wrap__nav__logo {
    display: block;
    width: 180px;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
    opacity: 0;
    transform: translateY(-12px);
    transition:
      opacity 0.5s ease 0.1s,
      transform 0.5s cubic-bezier(0.22, 1, 0.36, 1) 0.1s;
  }
  .header-wrap__nav__logo img {
    width: 100%;
    display: block;
  }
  .header-wrap__nav.is-open .header-wrap__nav__logo {
    opacity: 1;
    transform: translateY(0);
  }
  .header-wrap__nav__list {
    flex-direction: column;
    gap: 28px;
    font-size: 1.5rem;
    align-items: center;
    position: relative;
    z-index: 1;
  }
  .header-wrap__nav__lang {
    position: relative;
    z-index: 1;
  }
  .header-wrap__nav__list__list a {
    position: relative;
    padding: 8px 16px;
    transition: color 0.3s ease;
  }
  .header-wrap__nav__list__list a:hover {
    color: var(--color-blue);
  }
  .header-wrap__nav__lang {
    margin-top: 16px;
    padding: 12px 24px;
    border: 1px solid rgba(30, 95, 207, 0.3);
    border-radius: 999px;
  }
  .header-wrap__logo {
    width: 180px;
  }
}
.contact {
  padding: 140px 0;
  text-align: center;
}
.contact-wrap__ttl {
  font-size: clamp(72px, 12vw, 140px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.05em;
  margin-bottom: 32px;
  font-family: var(--font-display);
}
.contact-wrap__txt {
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 20px;
}
.contact-wrap__link {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  color: #000;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: clamp(20px, 2vw, 28px);
  letter-spacing: 0.16em;
  padding: 12px 0;
  position: relative;
  margin-top: 8px;
}
.contact-wrap__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background-color: currentColor;
  transform: scaleX(1);
  transform-origin: right center;
  transition: transform 0.5s cubic-bezier(0.76, 0, 0.24, 1);
}
.contact-wrap__link:hover::after {
  transform: scaleX(0);
  transform-origin: left center;
}
.contact-wrap__link__arrow {
  display: inline-block;
  font-size: 1.1em;
  transition: transform 0.5s cubic-bezier(0.76, 0, 0.24, 1);
}
.contact-wrap__link:hover .contact-wrap__link__arrow {
  transform: translateX(12px);
}

.footer {
  position: relative;
  background-color: #000;
  background-image:
    radial-gradient(
      ellipse at 50% 0%,
      rgba(30, 95, 207, 0.14) 0%,
      transparent 55%
    ),
    radial-gradient(
      ellipse at 50% 100%,
      rgba(10, 58, 153, 0.08) 0%,
      transparent 50%
    );
  color: #fff;
  padding: 80px 0 56px;
  overflow: hidden;
}
.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(30, 95, 207, 0.35) 25%,
    rgba(30, 159, 220, 0.7) 50%,
    rgba(30, 95, 207, 0.35) 75%,
    transparent 100%
  );
  pointer-events: none;
}
.footer-wrap {
  position: relative;
  z-index: 1;
}
.footer-wrap__logo {
  width: 260px;
  margin: 0 auto 60px;
}
.footer-wrap__logo img {
  width: 100%;
  display: block;
}
.footer-wrap__body {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0 auto;
  width: 95%;
  max-width: 1100px;
}
.footer-wrap__nav {
  width: 100%;
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-wrap__nav__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 14px 40px;
  font-size: 17px;
  font-weight: 300;
  letter-spacing: 0.2em;
  font-family: var(--font-display);
}
.footer-wrap__nav__list a {
  position: relative;
  display: inline-block;
  padding: 4px 0;
  color: #fff;
  text-decoration: none;
  transition: color 0.4s ease;
}
.footer-wrap__nav__list a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 1px;
  background-color: var(--color-blue);
  transition:
    width 0.4s cubic-bezier(0.76, 0, 0.24, 1),
    left 0.4s cubic-bezier(0.76, 0, 0.24, 1);
}
.footer-wrap__nav__list a:hover {
  color: rgba(255, 255, 255, 0.9);
}
.footer-wrap__nav__list a:hover::after {
  width: 100%;
  left: 0;
}
.footer-wrap__copy {
  text-align: center;
  font-size: 11px;
  letter-spacing: 0.24em;
  margin-top: 72px;
  font-weight: 300;
  font-family: var(--font-en);
  color: rgba(255, 255, 255, 0.4);
}
@media (max-width: 1080px) {
  .site-bg-video {
    width: 95vw;
    height: auto;
    -o-object-fit: contain;
    object-fit: contain;
  }
}
@media (max-width: 720px) {
  .contact {
    padding: 80px 0;
  }
  .contact-wrap__txt {
    font-size: 14px;
    padding: 0 16px;
  }
  .contact-wrap__link {
    gap: 12px;
    padding: 12px 16px;
  }

  .footer {
    padding: 65px 0 40px;
  }
  .footer-wrap__logo {
    width: 200px;
    margin-bottom: 56px;
  }
  .footer-wrap__body {
    width: 90%;
  }
  .footer-wrap__nav {
    padding: 28px 0;
  }
  .footer-wrap__nav__list {
    gap: 14px 22px;
    font-size: 14px;
    letter-spacing: 0.16em;
  }
  .footer-wrap__copy {
    margin-top: 48px;
    font-size: 10px;
    letter-spacing: 0.2em;
  }
}