:root {
  color-scheme: light;
  --paper: #fff;
  --ink: #20211f;
  --muted: #5b5c58;
  --line: #d8d8d3;
  --accent: #2547d9;
  --sans: Inter, "Noto Sans JP", "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
  --gutter: clamp(1.2rem, 5vw, 5rem);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 1rem/1.65 var(--sans); }
html[lang="ja"] body [lang="en"], html[lang="en"] body [lang="ja"] { display: none; }
a { color: inherit; }
button { color: inherit; font: inherit; }
img { display: block; max-width: 100%; }
p, h1, h2, h3, figure { margin: 0; }
section[id], #business { scroll-margin-top: 1.8rem; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 5px; }

.shell { width: min(calc(100% - var(--gutter) * 2), 78rem); margin-inline: auto; }
.skip { position: fixed; top: 1rem; left: 1rem; transform: translateY(-220%); z-index: 4; padding: .7rem 1rem; background: var(--ink); color: var(--paper); }
.skip:focus { transform: none; }

.site-header { position: absolute; inset: 0 0 auto; z-index: 2; }
.header-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: start;
  gap: .25rem clamp(.85rem, 2.1vw, 2.2rem);
  width: min(calc(100% - clamp(1.2rem, 2.75vw, 3rem) * 2), 100rem);
  margin-inline: auto;
  padding-top: clamp(1rem, 2.25vw, 2.15rem);
}
.wordmark { display: flex; align-items: baseline; width: fit-content; min-height: 2.75rem; padding-top: .35rem; font-size: clamp(1.5rem, 2.1vw, 1.9rem); font-weight: 700; letter-spacing: -.075em; line-height: 1; text-decoration: none; white-space: nowrap; }
.wordmark-dot { display: inline-block; width: .21em; height: .21em; margin-inline-start: .065em; border-radius: 50%; background: var(--accent); }
.main-nav { display: flex; flex-direction: row-reverse; color: var(--muted); font-size: .88rem; font-weight: 500; letter-spacing: .055em; }
.main-nav a { display: inline-flex; align-items: center; min-width: 2.75rem; min-height: 5rem; padding: .35rem 0; text-decoration: none; writing-mode: vertical-rl; }
.main-nav a:hover, .main-nav a[aria-current] { color: var(--ink); text-decoration: underline; text-underline-offset: .2em; }
.language { display: flex; align-items: center; color: var(--muted); font-size: .73rem; }
.language button { border: 0; min-height: 2.75rem; min-width: 2.15rem; padding: 0 .18rem; background: transparent; cursor: pointer; }
.language button[aria-pressed="true"] { color: var(--ink); text-decoration: underline; text-underline-offset: .2em; font-weight: 600; }

.hero { position: relative; display: grid; place-items: center; min-height: 100svh; padding-block: clamp(8.25rem, 16svh, 10rem) clamp(5rem, 11svh, 7rem); }
.hero-title { font-weight: 400; text-align: center; }
.mission-japanese {
  display: block;
  writing-mode: vertical-rl;
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-size: clamp(2.25rem, 3.55vw, 3.3rem);
  line-height: 1.9;
  letter-spacing: .16em;
  text-align: start;
  white-space: nowrap;
}
.mission-english { display: block; font-size: clamp(2.25rem, 5.4vw, 5rem); line-height: 1.07; letter-spacing: -.055em; }
.hero-jump { position: absolute; left: 0; bottom: clamp(1rem, 3.5svh, 2.25rem); display: inline-flex; align-items: center; gap: 1rem; min-height: 2.75rem; color: var(--muted); font-size: .83rem; text-decoration: none; }
.hero-jump:hover { color: var(--ink); text-decoration: underline; text-underline-offset: .2em; }

.vision {
  display: grid;
  align-content: center;
  gap: 1rem;
  min-height: clamp(19rem, 32vw, 26rem);
  padding: clamp(1.5rem, 5vw, 4.5rem);
  background-color: #f9e7d8;
  background-image: url('/assets/art-trading-furahart-frame.webp');
  background-position: right clamp(1.5rem, 5vw, 4.5rem) center;
  background-repeat: no-repeat;
  background-size: min(48%, 32rem) auto;
}
.vision h2 { font-size: clamp(2.15rem, 3.55vw, 3.6rem); font-weight: 400; line-height: 1.12; letter-spacing: -.05em; }
.vision p { color: var(--ink); }

.site-section { margin-top: clamp(5.5rem, 10vw, 10rem); padding-top: clamp(2rem, 4vw, 3.4rem); border-top: 1px solid var(--line); }
.section-heading, .about-content { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .85fr); column-gap: clamp(2rem, 8vw, 9rem); }
.section-heading { align-items: end; row-gap: .7rem; }
.section-title { font-size: clamp(2.1rem, 3.65vw, 3.6rem); font-weight: 400; line-height: 1.05; letter-spacing: -.055em; text-transform: uppercase; }
.section-note { margin-bottom: .16em; font-size: clamp(.99rem, 1.4vw, 1.2rem); font-weight: 500; line-height: 1.45; }
.about-content { align-items: start; row-gap: clamp(2rem, 8vw, 9rem); margin-top: clamp(1.9rem, 3.7vw, 3.4rem); }
.about-business h3 { margin-bottom: .85rem; font-size: 1rem; font-weight: 600; }
.business-list { margin: 0; padding: 0; list-style: none; }
.business-list li { padding: .65rem 0; border-top: 1px solid var(--line); }
.business-list li:last-child { border-bottom: 1px solid var(--line); }
.details { margin: 0; border-top: 1px solid var(--line); }
.details > div { display: grid; grid-template-columns: 5rem 1fr; gap: .8rem; padding: .65rem 0; border-bottom: 1px solid var(--line); }
.details dt { color: var(--muted); font-size: .82rem; align-self: center; }
.details dd { margin: 0; }

.project-feature { display: grid; grid-template-columns: minmax(0, .68fr) minmax(0, 1fr); align-items: end; gap: 1.5rem clamp(1.5rem, 6vw, 7rem); margin-top: clamp(2.6rem, 4.6vw, 4.8rem); }
.project-image { grid-column: 2; grid-row: 1; }
.project-image a { display: block; overflow: hidden; border: 1px solid var(--line); }
.project-image img { width: 100%; height: auto; aspect-ratio: 1.67; object-fit: cover; object-position: center 48%; transition: transform .45s ease; }
.project-image a:hover img { transform: scale(1.025); }
.project-image figcaption { margin-top: .55rem; color: var(--muted); font-size: .7rem; }
.project-copy { grid-column: 1; grid-row: 1; align-self: end; padding-bottom: 1.45rem; }
.project-copy h3 { font-size: clamp(2rem, 4vw, 3.6rem); font-weight: 500; line-height: 1; letter-spacing: -.065em; }
.project-copy p { margin-top: .85rem; }
.text-link { display: inline-flex; gap: .7em; align-items: center; min-height: 2.75rem; margin-top: 1.05rem; padding: 0 .82rem; background: #efefed; font-size: .86rem; font-weight: 500; text-decoration: none; }
.text-link:hover { background: var(--ink); color: var(--paper); }

.contact-content { margin-top: clamp(1.8rem, 4vw, 3.6rem); }
.contact-content p { color: var(--muted); }
.email { display: inline-block; margin-top: .45rem; font-size: clamp(1.04rem, 2.5vw, 2.6rem); text-decoration-thickness: 1px; text-underline-offset: .23em; overflow-wrap: anywhere; }
.email:hover { text-decoration-thickness: 2px; }
.site-footer { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-top: clamp(4rem, 8vw, 7rem); min-height: 4.4rem; border-top: 1px solid var(--line); color: var(--muted); }
.site-footer a { display: inline-flex; align-items: center; gap: .35rem; min-height: 2.75rem; font-size: .8rem; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; text-underline-offset: .17em; }

@media (max-width: 850px) {
  .vision {
    align-content: start;
    min-height: 0;
    padding-bottom: clamp(10rem, 58vw, 20.5rem);
    background-position: center bottom 1rem;
    background-size: min(82%, 25rem) auto;
  }
}

@media (max-width: 720px) {
  .header-inner { grid-template-columns: minmax(0, 1fr) auto; }
  .main-nav { grid-column: 1 / -1; flex-direction: row; justify-content: flex-end; }
  .main-nav a { writing-mode: horizontal-tb; min-height: 2.75rem; padding: 0 .5rem; }
  .main-nav a:last-child { padding-right: 0; }
  .mission-japanese { font-size: clamp(2rem, 6.75vw, 3rem); }
  .section-heading, .about-content, .project-feature { grid-template-columns: minmax(0, 1fr); }
  .section-note { margin-bottom: 0; }
  .project-feature { margin-top: 2rem; }
  .project-image, .project-copy { grid-column: auto; grid-row: auto; }
  .project-copy { padding-bottom: 0; }
}

@media (prefers-reduced-motion: no-preference) {
  [data-reveal-state="waiting"] { opacity: 0; }

  [data-reveal="title"] {
    overflow: clip;
    overflow-clip-margin: .13em;
  }

  .reveal-text { display: block; }

  [data-reveal-state="shown"] > .reveal-text {
    animation: title-enter .9s cubic-bezier(.22, 1, .36, 1) both;
  }

  [data-reveal="copy"][data-reveal-state="shown"] {
    animation: copy-enter .72s cubic-bezier(.22, 1, .36, 1) .12s backwards;
  }

  [data-reveal="image"][data-reveal-state="shown"] {
    animation: image-enter .9s cubic-bezier(.22, 1, .36, 1) .18s backwards;
  }

  .project-image a:focus-visible > [data-reveal] {
    animation: none;
    opacity: 1;
  }

  .text-link > [aria-hidden], .email > [aria-hidden] {
    display: inline-block;
    transition: transform .25s ease;
  }

  :is(.text-link, .email):is(:hover, :focus-visible) > [aria-hidden] {
    transform: translate(.13em, -.13em);
  }

  @keyframes title-enter {
    from { opacity: 0; transform: translateY(100%); }
    to { opacity: 1; transform: translateY(0); }
  }

  @keyframes copy-enter {
    from { opacity: 0; transform: translateY(1.1rem); }
    to { opacity: 1; transform: translateY(0); }
  }

  @keyframes image-enter {
    from { opacity: 0; clip-path: inset(14% 0 0); }
    to { opacity: 1; clip-path: inset(0); }
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .project-image img { transition: none; }
}