:root {
  color-scheme: dark;
  --ink: #eff6f2;
  --muted: #aebbb6;
  --deep: #06110f;
  --line: rgba(239, 246, 242, 0.22);
  --accent: #a8f0d7;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--deep);
  color: var(--ink);
  font-family: "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  line-height: 1.8;
}

a {
  color: inherit;
}

img {
  display: block;
  width: 100%;
}

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  padding: 24px 4vw;
  mix-blend-mode: difference;
}

.brand {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 28px;
}

nav a {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-decoration: none;
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
}

.hero > img {
  position: absolute;
  inset: 0;
  height: 100%;
  object-fit: cover;
  animation: drift 18s ease-in-out infinite alternate;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(4, 14, 13, 0.86) 0%, rgba(4, 14, 13, 0.18) 62%, rgba(4, 14, 13, 0.48) 100%);
}

.hero-copy {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 100svh;
  max-width: 920px;
  flex-direction: column;
  justify-content: center;
  padding: 14vh 7vw 10vh;
}

.eyebrow,
.section-number {
  margin: 0 0 30px;
  color: var(--accent);
  font-size: 11px;
  letter-spacing: 0.22em;
}

h1 {
  display: flex;
  margin: 0;
  flex-direction: column;
  font-size: clamp(88px, 17vw, 230px);
  font-weight: 300;
  letter-spacing: -0.08em;
  line-height: 0.72;
}

h1 span:last-child {
  padding-left: 26%;
  color: transparent;
  -webkit-text-stroke: 1px rgba(239, 246, 242, 0.75);
}

.lead {
  max-width: 520px;
  margin: 54px 0 30px;
  font-size: clamp(16px, 2vw, 24px);
  letter-spacing: 0.08em;
}

.button {
  display: inline-flex;
  width: fit-content;
  min-width: 210px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(239, 246, 242, 0.55);
  padding: 14px 24px;
  font-size: 12px;
  letter-spacing: 0.15em;
  text-decoration: none;
  transition: background 180ms ease, color 180ms ease;
}

.button:hover,
.button:focus-visible {
  background: var(--ink);
  color: var(--deep);
}

.hero-note {
  position: absolute;
  z-index: 1;
  right: 3vw;
  bottom: 24px;
  margin: 0;
  color: rgba(239, 246, 242, 0.65);
  font-size: 9px;
  letter-spacing: 0.12em;
  writing-mode: vertical-rl;
}

.section {
  border-top: 1px solid var(--line);
  padding: 120px 7vw;
}

.concept {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 10vw;
}

h2 {
  margin: 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(34px, 5vw, 72px);
  font-weight: 400;
  line-height: 1.45;
}

.body-copy {
  align-self: end;
  color: var(--muted);
  font-size: 14px;
}

.body-copy p + p {
  margin-top: 28px;
}

.program {
  background: #e7ede9;
  color: #0b1714;
}

.program .section-number {
  color: #315b4d;
}

.program-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4vw;
}

.card:nth-child(2) {
  margin-top: 13vw;
}

.card img {
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.card-copy {
  padding-top: 22px;
}

.card-copy p,
.card-copy span {
  margin: 0;
  font-size: 10px;
  letter-spacing: 0.16em;
}

.card-copy h3 {
  margin: 7px 0 14px;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: 32px;
  font-weight: 400;
}

.access {
  display: grid;
  grid-template-columns: 0.5fr 1.5fr;
  gap: 8vw;
}

.access h2 {
  margin-bottom: 24px;
}

.access p {
  margin: 3px 0;
}

.notice {
  color: var(--muted);
  font-size: 12px;
}

footer {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  padding: 26px 4vw;
  color: var(--muted);
  font-size: 9px;
  letter-spacing: 0.16em;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes drift {
  from { transform: scale(1.01); }
  to { transform: scale(1.07) translate3d(-1%, 0.5%, 0); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero > img { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

@media (max-width: 720px) {
  .site-header { padding: 18px 20px; }
  nav { gap: 14px; }
  nav a { font-size: 9px; }
  .hero-copy { padding-right: 24px; padding-left: 24px; }
  h1 { font-size: clamp(76px, 28vw, 138px); }
  .hero-note { display: none; }
  .section { padding: 80px 24px; }
  .concept, .access { grid-template-columns: 1fr; gap: 42px; }
  .program-grid { grid-template-columns: 1fr; gap: 64px; }
  .card:nth-child(2) { margin-top: 0; }
  footer { gap: 16px; padding: 22px 20px; }
}