:root {
  --bg: #fff;
  --ink: #000;
  --muted: #646464;
  --line: #d7d7d7;
  --accent: #e30613;
  --pad: clamp(1rem, 3vw, 3rem);
  --sans: "Inter Tight", "Noto Sans JP", sans-serif;
  --jp: "Zen Kaku Gothic New", "Noto Sans JP", sans-serif;
}

* { box-sizing: border-box; }
html { overflow-x: clip; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--jp);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
::selection { background: var(--ink); color: var(--bg); }

.skip-link {
  position: fixed;
  top: .5rem;
  left: .5rem;
  z-index: 100;
  padding: .6rem 1rem;
  background: var(--ink);
  color: var(--bg);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 90;
  height: 3px;
  background: transparent;
}
.progress span { display: block; width: 100%; height: 100%; background: var(--ink); transform: scaleX(0); transform-origin: left; }

.site-head {
  position: fixed;
  inset: 0 0 auto;
  z-index: 80;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 64px;
  padding: 0 var(--pad);
  border-bottom: 1px solid transparent;
  font-family: var(--sans);
  mix-blend-mode: difference;
  color: #fff;
  transition: transform .35s ease, border-color .35s ease;
}
.site-head.is-hidden { transform: translateY(-100%); }
.site-head__mark { font-weight: 900; letter-spacing: -.03em; text-decoration: none; }
.site-head__nav { display: flex; gap: clamp(1rem, 3vw, 3rem); }
.site-head__nav a {
  position: relative;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-decoration: none;
}
.site-head__nav a::after {
  content: "";
  position: absolute;
  inset: auto 0 -.25rem;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .3s ease;
}
.site-head__nav a:hover::after,
.site-head__nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }

.hero {
  position: relative;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-template-rows: auto 1fr auto;
  gap: 1rem;
  min-height: 100svh;
  padding: clamp(6rem, 10vh, 9rem) var(--pad) clamp(2rem, 5vh, 4rem);
  border-bottom: 1px solid var(--ink);
  overflow: hidden;
}
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  pointer-events: none;
  background: var(--line);
}
.hero::before { inset: 0 auto 0 66.66%; width: 1px; }
.hero::after { inset: 28% 0 auto; height: 1px; }
.eyebrow,
.section__cap {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(.62rem, .75vw, .76rem);
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.eyebrow { grid-column: 1 / 6; align-self: start; }
.hero__name {
  grid-column: 1 / -1;
  align-self: center;
  z-index: 2;
  margin: 0 0 0 -.06em;
  font-family: var(--jp);
  font-size: clamp(7rem, 22.5vw, 25rem);
  font-weight: 900;
  line-height: .72;
  letter-spacing: -.115em;
  white-space: nowrap;
}
.hero__name .char { display: inline-block; will-change: transform; }
.hero__lead-wrap {
  grid-column: 1 / 6;
  grid-row: 3;
  display: grid;
  gap: 1.2rem;
  align-self: end;
}
.hero__lead {
  margin: 0;
  font-size: clamp(1.35rem, 2.7vw, 2.8rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.04em;
}
.jump-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100%, 28rem);
  padding: .85rem 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  font-family: var(--sans);
  font-weight: 800;
  text-decoration: none;
  transition: padding .25s ease;
}
.jump-link:hover,
.jump-link:focus-visible { padding-left: 1rem; padding-right: 1rem; }
.hero__proof {
  grid-column: 8 / -1;
  grid-row: 3;
  align-self: end;
  margin: 0;
  font-size: clamp(.95rem, 1.4vw, 1.35rem);
  font-weight: 700;
  line-height: 1.55;
}
.hero__scroll {
  position: absolute;
  right: var(--pad);
  top: 50%;
  margin: 0;
  font-family: var(--sans);
  font-size: .62rem;
  letter-spacing: .16em;
  transform: rotate(90deg) translateX(50%);
  transform-origin: right center;
}

.section {
  position: relative;
  display: grid;
  grid-template-columns: minmax(7rem, 16vw) 1fr;
  min-height: 100svh;
  border-bottom: 1px solid var(--ink);
}
.section__rail {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(6rem, 11vh, 8rem) 1.25rem 2rem var(--pad);
  border-right: 1px solid currentColor;
  overflow: hidden;
}
.section__cap { writing-mode: vertical-rl; }
.section__letter {
  margin: 0 0 -.13em -.12em;
  font-family: var(--sans);
  font-size: clamp(8rem, 19vw, 20rem);
  font-weight: 900;
  line-height: .7;
  opacity: .08;
}
.section__body {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  align-content: start;
  gap: clamp(1.5rem, 3vw, 3rem);
  padding: clamp(7rem, 14vh, 11rem) var(--pad) clamp(5rem, 10vh, 8rem);
}
.section h2,
.final-cta h2 {
  margin: 0;
  font-family: var(--jp);
  font-size: clamp(4rem, 10vw, 11rem);
  font-weight: 900;
  /* Multi-line display text: keep adjacent lines separated by exactly 1px. */
  line-height: calc(1em + 1px);
  letter-spacing: -.08em;
}
.section h2 { grid-column: 1 / 10; }
.section h2 em { color: var(--accent); font-style: normal; }
.section__intro {
  grid-column: 7 / -1;
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid currentColor;
  font-size: clamp(.95rem, 1.35vw, 1.25rem);
  font-weight: 500;
  line-height: 1.9;
}
.section__intro--wide { grid-column: 5 / -1; }
.section__intro--offset { grid-column: 6 / 10; margin-top: 2rem; }

.stat-list {
  grid-column: 1 / -1;
  margin: clamp(3rem, 8vh, 7rem) 0 0;
  padding: 0;
  border-top: 1px solid var(--ink);
}
.stat {
  display: grid;
  grid-template-columns: minmax(7rem, 1fr) 5fr;
  align-items: baseline;
  gap: 1rem;
  padding: 1.25rem 0 1.75rem;
  border-bottom: 1px solid var(--ink);
}
.stat dt {
  font-family: var(--sans);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.stat dd { display: flex; align-items: baseline; gap: .7rem; margin: 0; }
.stat strong {
  font-family: var(--sans);
  font-size: clamp(3.2rem, 9vw, 9.5rem);
  font-weight: 900;
  line-height: .8;
  letter-spacing: -.075em;
}
.stat span { font-weight: 700; }
.source-note {
  grid-column: 1 / -1;
  margin: 0;
  font-size: .68rem;
  letter-spacing: .08em;
  color: var(--muted);
}

.section--black { background: var(--ink); color: var(--bg); border-bottom-color: var(--bg); }
.section--black .section__rail { border-right-color: rgba(255,255,255,.35); }
.system { min-height: 92svh; }
.system__aside {
  position: absolute;
  right: var(--pad);
  bottom: 2rem;
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(.8rem, 1vw, 1rem);
  line-height: 1.5;
  text-align: right;
}

.stance { min-height: 120svh; }
.strike-copy {
  position: absolute;
  right: var(--pad);
  bottom: 7vh;
  display: grid;
  gap: .25rem;
  width: min(42rem, 62vw);
  font-family: var(--sans);
  font-size: clamp(1.5rem, 4.5vw, 5rem);
  font-weight: 900;
  line-height: calc(1em + 1px);
  text-align: right;
}
.strike-copy span { position: relative; color: #aaa; }
.strike-copy span::after {
  content: "";
  position: absolute;
  top: 52%;
  right: 0;
  width: 100%;
  height: .08em;
  background: var(--ink);
  transform-origin: left;
}
.strike-copy b { font-weight: 900; }

.freedom { min-height: 105svh; overflow: hidden; }
.bars {
  position: absolute;
  right: var(--pad);
  bottom: 0;
  left: calc(16vw + var(--pad));
  display: flex;
  align-items: end;
  gap: clamp(.25rem, 1vw, 1rem);
  height: 28vh;
  opacity: .14;
}
.bars i { flex: 1; background: var(--ink); transform-origin: bottom; }
.bars i:nth-child(1) { height: 28%; }
.bars i:nth-child(2) { height: 53%; }
.bars i:nth-child(3) { height: 37%; }
.bars i:nth-child(4) { height: 78%; }
.bars i:nth-child(5) { height: 100%; }

.final-cta {
  position: relative;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
  min-height: 100svh;
  padding: clamp(6rem, 12vh, 10rem) var(--pad) 3rem;
  background: var(--accent);
  color: #fff;
}
.final-cta .section__cap { grid-column: 1 / 3; writing-mode: initial; }
.final-cta h2 { grid-column: 1 / 9; align-self: center; font-size: clamp(5rem, 15vw, 16rem); }
.final-cta__lead {
  grid-column: 9 / -1;
  align-self: center;
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid currentColor;
  font-size: clamp(1rem, 1.7vw, 1.5rem);
  font-weight: 700;
}
.btn {
  grid-column: 7 / -1;
  align-self: end;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  min-height: 78px;
  padding: 1rem 1.5rem;
  border: 2px solid #000;
  background: #000;
  color: #fff;
  font-family: var(--sans);
  font-size: clamp(1.1rem, 2vw, 1.7rem);
  font-weight: 900;
  text-decoration: none;
  transition: background .25s ease, color .25s ease, transform .25s ease;
}
.btn:hover,
.btn:focus-visible { background: #fff; color: #000; transform: translate(-6px,-6px); box-shadow: 6px 6px 0 #000; }
.cta__note {
  grid-column: 7 / -1;
  margin: .6rem 0 0;
  align-self: end;
  font-size: .7rem;
  line-height: 1.5;
}

.site-foot {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem var(--pad);
  background: var(--ink);
  color: var(--bg);
  font-family: var(--sans);
  font-size: .7rem;
  letter-spacing: .1em;
}
.site-foot p { margin: 0; }
.site-foot a { text-underline-offset: .25em; }

@media (max-width: 760px) {
  .site-head__nav a:not(:last-child) { display: none; }
  .hero { grid-template-rows: auto 1fr auto auto; min-height: 100svh; }
  .hero::before { left: 72%; }
  .hero::after { top: 31%; }
  .eyebrow { grid-column: 1 / 10; }
  .hero__name { grid-column: 1 / -1; font-size: 24vw; }
  .hero__lead-wrap { grid-column: 1 / 10; grid-row: 3; }
  .hero__proof { grid-column: 4 / -1; grid-row: 4; margin-top: 1.5rem; }
  .hero__scroll { display: none; }
  .section { grid-template-columns: 3.4rem 1fr; }
  .section__rail { padding: 5.5rem .7rem 1.5rem; }
  .section__letter { font-size: 5.5rem; }
  .section__body { grid-template-columns: 1fr; padding: 6.5rem 1rem 5rem; }
  .section h2,
  .section__intro,
  .section__intro--wide,
  .section__intro--offset,
  .stat-list,
  .source-note { grid-column: 1; }
  .section__intro--offset { margin-top: 0; }
  .stat { grid-template-columns: 1fr; gap: .5rem; }
  .stat dd { min-width: 0; flex-wrap: wrap; }
  .stat strong { font-size: clamp(3rem, 17vw, 6rem); }
  .stat:nth-child(3) strong { font-size: clamp(2.1rem, 9vw, 3.6rem); letter-spacing: -.06em; }
  .system__aside { right: 1rem; }
  .strike-copy { width: calc(100% - 5.4rem); font-size: 8vw; }
  .bars { left: 4.4rem; right: 1rem; }
  .final-cta { grid-template-columns: 1fr; padding-inline: 1rem; }
  .final-cta .section__cap,
  .final-cta h2,
  .final-cta__lead,
  .btn,
  .cta__note { grid-column: 1; }
  .final-cta h2 { font-size: 22vw; align-self: end; }
  .final-cta__lead { align-self: start; }
  .btn { align-self: end; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .001ms !important;
  }
  .hero__name .char,
  .reveal,
  .section__body,
  .stat,
  .bars i { opacity: 1 !important; transform: none !important; }
}