:root {
  --bg: #f1ece5;
  --paper: #fbf8f2;
  --ink: #171514;
  --muted: rgba(23, 21, 20, 0.62);
  --line: rgba(23, 21, 20, 0.18);
  --section-pad: clamp(64px, 10vw, 132px);
  --hero-trailer-gap: clamp(30.24px, 5.04vw, 70.56px);
  --trailer-top-gap: clamp(5.04px, 0.8064vw, 10.08px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 50% 8%, rgba(255, 255, 255, 0.72), transparent 28rem),
    linear-gradient(180deg, #f4eee6 0%, var(--bg) 48%, #ececea 100%);
  color: var(--ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

.language-toggle {
  position: fixed;
  top: clamp(14px, 2.4vw, 28px);
  right: clamp(14px, 2.4vw, 28px);
  z-index: 10;
  min-width: 84px;
  border: 1px solid rgba(23, 21, 20, 0.32);
  background: rgba(244, 238, 230, 0.76);
  color: var(--ink);
  font: 600 0.88rem/1 system-ui, sans-serif;
  padding: 11px 15px;
  border-radius: 999px;
  backdrop-filter: blur(10px);
  cursor: pointer;
}

.language-toggle:hover,
.language-toggle:focus-visible {
  border-color: rgba(23, 21, 20, 0.62);
}

.hero {
  min-height: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-content: start;
  justify-items: center;
  gap: clamp(28px, 5vw, 56px);
  padding: clamp(40px, 5vw, 70px) clamp(20px, 5vw, 72px) var(--hero-trailer-gap);
  text-align: center;
}

.hero__content {
  width: min(820px, 100%);
}

.hero__eyebrow {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: clamp(0.86rem, 1.6vw, 1rem);
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.hero__title {
  margin: 0;
  font-size: clamp(4.64rem, 16.8vw, 14.4rem);
  font-weight: 520;
  line-height: 0.78;
  letter-spacing: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.hero__jp-title {
  margin: clamp(14px, 2.4vw, 24px) 0 0;
  color: rgba(23, 21, 20, 0.72);
  font-size: clamp(0.715rem, 2.21vw, 1.5275rem);
  font-weight: 300;
  letter-spacing: 0.08em;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", serif;
}

.hero__jp-title::after {
  content: "";
  width: clamp(10.44rem, 37.8vw, 32.4rem);
  height: 1px;
  display: block;
  margin: clamp(16px, 2.8vw, 30px) auto 0;
  background: rgba(23, 21, 20, 0.32);
}

.hero__copy {
  width: min(520px, 100%);
  margin: clamp(24px, 4vw, 42px) auto 0;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.22rem);
}

.hero__interaction {
  width: min(500px, 92vw);
  display: grid;
  justify-items: center;
}

#hairCanvas {
  width: min(430px, 86vw);
  height: clamp(230px, 38svh, 360px);
  display: block;
  touch-action: auto;
}

[data-hair-interaction] {
  touch-action: auto;
}

.section {
  padding: var(--section-pad) clamp(20px, 5vw, 72px);
}

.trailer {
  padding-top: var(--trailer-top-gap);
}

.section__inner {
  width: min(960px, 100%);
  margin: 0 auto;
}

.section__inner--narrow {
  width: min(680px, 100%);
}

.section__title {
  margin: 0 0 clamp(22px, 4vw, 36px);
  font-size: clamp(1.7rem, 5vw, 3.8rem);
  font-weight: 520;
  line-height: 1;
}

.video-frame {
  width: min(880px, 100%);
  margin: 0 auto;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 50% 45%, rgba(23, 21, 20, 0.12), transparent 36%),
    rgba(255, 255, 255, 0.28);
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.video-frame iframe {
  width: 100%;
  height: 100%;
  display: block;
  border: 0;
}

.video-poster__image {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.video-poster__image[hidden] {
  display: none;
}

.video-poster__button {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  width: 100%;
  border: 0;
  background: rgba(244, 238, 230, 0.12);
  color: var(--ink);
  cursor: pointer;
}

.video-poster__button:hover,
.video-poster__button:focus-visible {
  background: rgba(244, 238, 230, 0.22);
}

.video-poster__icon {
  width: clamp(62px, 10vw, 96px);
  aspect-ratio: 1;
  display: block;
  border: 1px solid rgba(23, 21, 20, 0.42);
  border-radius: 50%;
  background: rgba(244, 238, 230, 0.62);
  position: relative;
  backdrop-filter: blur(8px);
}

.video-poster__icon::after {
  content: "";
  position: absolute;
  left: 40%;
  top: 31%;
  width: 0;
  height: 0;
  border-top: clamp(12px, 2vw, 18px) solid transparent;
  border-bottom: clamp(12px, 2vw, 18px) solid transparent;
  border-left: clamp(18px, 3vw, 27px) solid currentColor;
}

.about p {
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.02rem, 2vw, 1.22rem);
}

.more-pull {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(10px, 3vw, 24px);
}

.more-pull__canvas {
  width: 100%;
  height: clamp(190px, 28vw, 260px);
  display: block;
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.link-grid a,
.link-grid__item {
  min-height: 56px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(23, 21, 20, 0.32);
  background: rgba(255, 255, 255, 0.18);
  text-decoration: none;
  font-size: clamp(0.95rem, 1.8vw, 1.08rem);
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.link-grid a:hover,
.link-grid a:focus-visible {
  border-color: rgba(23, 21, 20, 0.62);
  background: rgba(255, 255, 255, 0.36);
  transform: translateY(-1px);
}

.link-grid__item--soon {
  color: rgba(23, 21, 20, 0.42);
  border-color: rgba(23, 21, 20, 0.16);
  background: rgba(255, 255, 255, 0.08);
}

.link-grid__item--soon small {
  margin-top: 2px;
  color: rgba(23, 21, 20, 0.34);
  font-size: 0.72em;
  line-height: 1;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

.footer p {
  margin: 0;
}

.footer__site-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer__site-link img {
  width: 45px;
  height: 45px;
  display: block;
  object-fit: contain;
}

@media (max-width: 680px) {
  .hero {
    padding-top: clamp(45px, 10svh, 80px);
  }

  .link-grid {
    grid-template-columns: 1fr;
  }

  .more-pull {
    grid-template-columns: 1fr;
  }

  .footer {
    display: grid;
  }
}