@font-face {
  font-family: "Shippori Mincho Subset";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/editorial/assets/fonts/ShipporiMincho-Medium-subset.woff2") format("woff2");
}

:root {
  color-scheme: dark;
  --background: #010202;
  --ink: #f4f2ef;
  --muted: #a7aaab;
  --quiet: #74787b;
  --line: rgba(234, 241, 244, 0.13);
  --sans: Inter, "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  --serif: "Shippori Mincho Subset", "Yu Mincho", YuMincho, "Hiragino Mincho ProN", Georgia, serif;
  --max-width: 1280px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--background);
}

body {
  min-width: 320px;
  min-height: 100svh;
  margin: 0;
  background:
    radial-gradient(ellipse 58% 24% at 50% -8%, rgba(239, 246, 248, 0.09), rgba(134, 151, 157, 0.016) 48%, transparent 72%),
    linear-gradient(180deg, #010202 0%, #030505 54%, #010202 100%);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  z-index: 0;
  inset: 0;
  background: linear-gradient(106deg, transparent 18%, rgba(255, 255, 255, 0.01) 43%, transparent 68%);
  content: "";
  pointer-events: none;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
  padding-inline: clamp(24px, 3.4vw, 54px);
  border-bottom: 1px solid rgba(235, 242, 245, 0.15);
  background: rgba(2, 3, 3, 0.72);
}

.brand {
  font-family: var(--serif);
  font-size: 1.45rem;
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1;
}

.language-link {
  display: grid;
  place-items: center;
  min-width: 44px;
  min-height: 44px;
  color: var(--muted);
  font-size: 0.83rem;
  line-height: 1;
  transition: color 180ms ease;
}

.language-link:hover {
  color: var(--ink);
}

.language-link:focus-visible,
.interface-link:focus-visible,
.brand:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.92);
  outline-offset: 5px;
}

main {
  position: relative;
  z-index: 1;
  display: grid;
  align-content: center;
  width: min(calc(100% - 48px), var(--max-width));
  min-height: calc(100svh - 72px);
  margin-inline: auto;
  padding-block: clamp(72px, 9vw, 126px);
}

.intro {
  max-width: 900px;
  margin-bottom: clamp(52px, 7vw, 82px);
}

h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(3.25rem, 6.6vw, 5.8rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 1.06;
  text-wrap: balance;
}

.interface-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.interface {
  border-bottom: 1px solid var(--line);
}

.interface-link {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) 32px;
  gap: 24px;
  align-items: center;
  min-height: 88px;
  padding-inline: 16px;
  background: linear-gradient(90deg, rgba(241, 247, 249, 0), transparent 62%);
  transition: background 180ms ease;
}

.interface-number {
  color: var(--quiet);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.035em;
}

.interface-copy {
  display: grid;
  gap: 3px;
  justify-items: start;
  transition: transform 180ms ease;
}

.interface-title {
  font-size: clamp(1.16rem, 2vw, 1.52rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.35;
  transition: color 180ms ease;
}

.interface-tag {
  color: var(--quiet);
  font-size: 0.61rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  line-height: 1.25;
  transition: color 180ms ease;
}

.interface-arrow {
  color: var(--quiet);
  font-size: 1rem;
  text-align: right;
  transition: color 180ms ease, transform 180ms ease;
}

.interface-link:hover,
.interface-link:focus-visible {
  background: linear-gradient(90deg, rgba(241, 247, 249, 0.025), transparent 62%);
}

.interface-link:hover .interface-copy,
.interface-link:focus-visible .interface-copy {
  transform: translateX(5px);
}

.interface-link:hover .interface-title,
.interface-link:focus-visible .interface-title {
  color: #fff;
}

.interface-link:hover .interface-tag,
.interface-link:focus-visible .interface-tag {
  color: var(--muted);
}

.interface-link:hover .interface-arrow,
.interface-link:focus-visible .interface-arrow {
  color: var(--ink);
  transform: translate(2px, -2px);
}

@media (max-width: 680px) {
  .site-header {
    height: 64px;
    padding-inline: 16px;
  }

  .brand {
    font-size: 1.24rem;
  }

  main {
    width: min(calc(100% - 32px), var(--max-width));
    min-height: calc(100svh - 64px);
    padding-block: 68px 86px;
  }

  .intro {
    margin-bottom: 46px;
  }

  html[lang="ja"] h1 {
    font-size: clamp(2.05rem, 9.6vw, 2.75rem);
    white-space: nowrap;
  }

  html[lang="en"] h1 {
    font-size: clamp(2.85rem, 13vw, 4rem);
  }

  .interface-link {
    grid-template-columns: 38px minmax(0, 1fr) 24px;
    gap: 12px;
    min-height: 82px;
    padding-inline: 8px;
  }

  .interface-title {
    font-size: 1.05rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}