:root {
  --ink: #171310;
  --paper: #f7f3eb;
  --cream: #fffdf8;
  --orange: #d85b2d;
  --orange-deep: #a93f1c;
  --green: #243d2b;
  --muted: #776d63;
  --line: rgba(23, 19, 16, 0.16);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  font-feature-settings: "palt";
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 50%;
  width: min(1180px, calc(100% - 48px));
  height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #fff;
  transform: translateX(-50%);
}
.site-name {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
}
.site-mark {
  width: 13px;
  height: 18px;
  display: inline-block;
  border-radius: 50% 50% 50% 8px;
  background: var(--orange);
  transform: rotate(-45deg);
}
nav { display: flex; gap: 30px; font-size: 13px; letter-spacing: 0.12em; }
nav a {
  padding: 10px 0;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}
nav a:hover, nav a:focus-visible { color: #f49b67; border-color: currentColor; }

.hero {
  min-height: 760px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 0.82fr);
  overflow: hidden;
  background: radial-gradient(circle at 12% 86%, rgba(216, 91, 45, 0.14), transparent 26%), #12110f;
  color: #fff;
}
.hero-copy {
  width: min(650px, calc(100% - 80px));
  margin: auto 8% auto auto;
  padding: 140px 0 100px;
}
.eyebrow {
  margin: 0 0 20px;
  color: var(--orange);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}
.hero h1 {
  margin: 0;
  font-size: clamp(48px, 6vw, 84px);
  font-weight: 500;
  line-height: 1.24;
  letter-spacing: 0.07em;
}
.hero h1 span { display: block; color: #ee8150; }
.hero-lead {
  max-width: 550px;
  margin: 34px 0 42px;
  color: #d9d2c8;
  font-size: 16px;
  line-height: 2.2;
  letter-spacing: 0.05em;
}
.button {
  width: 190px;
  min-height: 58px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  font-size: 14px;
  letter-spacing: 0.16em;
  transition: background 0.2s ease, color 0.2s ease;
}
.button:hover, .button:focus-visible { background: #fff; color: var(--ink); }
.hero-visual { min-height: 760px; overflow: hidden; background: #050505; }
.hero-visual img { width: 100%; height: 100%; object-fit: cover; object-position: center; }

.story-section, .works-section, .history-section {
  width: min(1180px, calc(100% - 64px));
  margin: 0 auto;
  padding: 120px 0;
}
.section-heading {
  display: grid;
  grid-template-columns: 72px 1fr;
  align-items: start;
  margin-bottom: 70px;
}
.section-number {
  margin: 0;
  color: var(--orange);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.18em;
}
.section-heading .eyebrow, .history-heading .eyebrow, .people-copy .eyebrow { margin-bottom: 12px; }
h2 {
  margin: 0;
  font-size: clamp(34px, 4vw, 52px);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: 0.08em;
}
.story-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 10%;
  align-items: end;
}
.story-copy p { max-width: 670px; margin: 0 0 20px; font-size: 16px; line-height: 2.1; }
.story-copy .large-copy { margin-bottom: 36px; font-size: clamp(25px, 3vw, 38px); line-height: 1.7; }
.large-copy em { color: var(--orange-deep); font-style: normal; }
.name-card {
  position: relative;
  padding: 44px;
  border-top: 3px solid var(--orange);
  background: var(--cream);
  box-shadow: 0 18px 50px rgba(69, 47, 29, 0.08);
}
.name-card::after {
  content: "由";
  position: absolute;
  right: 20px;
  bottom: -24px;
  color: rgba(216, 91, 45, 0.08);
  font-size: 120px;
  line-height: 1;
}
.card-label { margin: 0 0 20px; color: var(--orange-deep); font-weight: 700; letter-spacing: 0.18em; }
.name-card p:last-child { position: relative; z-index: 1; margin: 0; font-size: 16px; line-height: 2; }

.people-section {
  display: grid;
  grid-template-columns: minmax(420px, 0.9fr) minmax(0, 1.1fr);
  background: var(--green);
  color: #fff;
}
.people-image { max-height: 920px; overflow: hidden; background: #fff; }
.people-image img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }
.people-copy { align-self: center; max-width: 620px; padding: 90px 9%; }
.people-copy .section-number { margin-bottom: 42px; }
.people-copy h2 { margin-bottom: 38px; }
.people-copy p:not(.section-number, .eyebrow) {
  margin: 0 0 22px;
  color: #d9e0d7;
  font-size: 16px;
  line-height: 2.1;
}
.people-copy .people-lead { color: #fff; font-size: 23px; line-height: 1.8; }

.works-section { width: min(1320px, calc(100% - 64px)); }
.works-heading { grid-template-columns: 72px 1fr auto; }
.heading-note { margin: 28px 0 0; color: var(--muted); font-size: 14px; line-height: 1.9; }
.works-list { display: grid; gap: 56px; }
.work-card { overflow: hidden; border: 1px solid var(--line); background: var(--cream); }
.work-image { overflow: hidden; }
.work-image img {
  width: 100%;
  aspect-ratio: 2048 / 1435;
  object-fit: cover;
  transition: transform 0.55s ease;
}
.work-card:hover .work-image img { transform: scale(1.015); }
.work-caption {
  display: flex;
  align-items: center;
  gap: 26px;
  padding: 28px 34px;
  border-top: 1px solid var(--line);
}
.work-index { margin: 0; color: var(--orange); font-family: Georgia, "Times New Roman", serif; font-size: 13px; }
.work-caption h3 { margin: 0 0 6px; font-size: 23px; font-weight: 500; letter-spacing: 0.1em; }
.work-caption div p { margin: 0; color: var(--muted); font-size: 12px; letter-spacing: 0.14em; }

.history-section {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 10%;
  border-top: 1px solid var(--line);
}
.history-heading .section-number { margin-bottom: 40px; }
.history-content { display: grid; align-content: center; }
.timeline {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 30px;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}
.timeline:first-child { border-top: 1px solid var(--line); }
.timeline .date {
  margin: 4px 0 0;
  color: var(--orange-deep);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
}
.timeline h3 { margin: 0 0 12px; font-size: 20px; font-weight: 500; }
.timeline div p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.9; }

.social-section {
  min-height: 310px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 70px max(7%, calc((100% - 1180px) / 2));
  background: var(--orange-deep);
  color: #fff;
}
.social-section .eyebrow { color: #ffd2ba; }
.social-section h2 { margin-bottom: 18px; font-size: clamp(30px, 4vw, 46px); }
.social-section div > p:last-child { margin: 0; color: #f1d8cb; line-height: 1.8; }
.social-link {
  min-width: 280px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.62);
  letter-spacing: 0.14em;
  transition: padding 0.2s ease;
}
.social-link:hover, .social-link:focus-visible { padding-left: 12px; }
.social-link strong { font-family: Arial, sans-serif; font-size: 22px; }

footer { padding: 72px 32px 42px; background: #12110f; color: #fff; text-align: center; }
footer > p:first-child { margin: 0 0 20px; font-size: 23px; font-weight: 700; letter-spacing: 0.2em; }
.footer-note { margin: 0; color: #aaa39b; font-size: 13px; letter-spacing: 0.08em; }
.copyright { margin: 52px 0 0; color: #706b65; font-family: Arial, sans-serif; font-size: 10px; letter-spacing: 0.12em; }

@media (max-width: 900px) {
  .site-header { width: calc(100% - 40px); }
  nav { display: none; }
  .hero { grid-template-columns: 1fr; }
  .hero-copy { width: calc(100% - 48px); margin: 0 auto; padding: 142px 0 76px; }
  .hero-visual { min-height: auto; background: #050505; }
  .hero-visual img { width: min(100%, 620px); height: auto; margin: 0 auto; object-fit: contain; }
  .story-grid, .history-section { grid-template-columns: 1fr; gap: 54px; }
  .people-section { grid-template-columns: minmax(340px, 0.9fr) minmax(0, 1.1fr); }
  .people-copy { padding: 70px 8%; }
  .works-heading { grid-template-columns: 60px 1fr; }
  .heading-note { grid-column: 2; }
}

@media (max-width: 680px) {
  .site-header { height: 76px; }
  .site-name { font-size: 14px; }
  .hero-copy { width: calc(100% - 40px); padding: 124px 0 62px; }
  .hero h1 { font-size: clamp(40px, 12vw, 58px); letter-spacing: 0.04em; }
  .hero-lead { font-size: 14px; }
  .story-section, .works-section, .history-section { width: calc(100% - 40px); padding: 84px 0; }
  .section-heading, .works-heading { grid-template-columns: 42px 1fr; margin-bottom: 46px; }
  h2 { font-size: 32px; }
  .story-copy .large-copy { font-size: 25px; }
  .name-card { padding: 32px 26px; }
  .people-section { grid-template-columns: 1fr; }
  .people-image { max-height: none; }
  .people-image img { height: auto; }
  .people-copy { padding: 72px 24px; }
  .people-copy .people-lead { font-size: 20px; }
  .works-list { gap: 30px; }
  .work-caption { padding: 22px 20px; }
  .work-caption h3 { font-size: 19px; }
  .heading-note { margin-top: 20px; }
  .history-section { gap: 44px; }
  .timeline { grid-template-columns: 1fr; gap: 12px; }
  .social-section { min-height: 0; align-items: flex-start; flex-direction: column; padding: 66px 24px; }
  .social-link { width: 100%; min-width: 0; }
  footer { padding-inline: 24px; }
}

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