@charset "UTF-8";

:root {
  --bg: #f8f7f3;
  --paper: #ffffff;
  --mist: #efeee9;
  --line: #ded9cf;
  --text: #2d2b27;
  --sub: #77746d;
  --button: #2d2b27;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans JP", "Yu Gothic", "游ゴシック体", "YuGothic", sans-serif;
}

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

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

.site {
  width: 100%;
  overflow-x: hidden;
  font-size: 15px;
  line-height: 2;
  letter-spacing: 0.06em;
}

p,
h1,
h2 {
  margin: 0;
}

.en {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.22em;
  color: var(--sub);
  text-transform: uppercase;
}

/* Hero */

.hero {
  position: relative;
  min-height: 100svh;
  padding: 96px 0 112px;
  background: var(--bg);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 32px;
  border: 1px solid rgba(222, 217, 207, 0.72);
  pointer-events: none;
}

.hero-mark {
  position: absolute;
  top: 78px;
  left: 34px;
  writing-mode: vertical-rl;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 10px;
  letter-spacing: 0.26em;
  color: #aaa397;
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 72px));
  min-height: calc(100svh - 208px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 96px;
  align-items: center;
}

.hero h1 {
  margin-top: 36px;
  font-size: clamp(56px, 7vw, 98px);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: 0.22em;
}

.hero-copy {
  margin-top: 42px;
  font-size: clamp(16px, 1.8vw, 21px);
  line-height: 2.1;
  letter-spacing: 0.13em;
}

.hero-info {
  margin-top: 44px;
  color: var(--sub);
  font-size: 13px;
  line-height: 2.1;
}

.hero-visual img {
  width: 100%;
  height: min(74svh, 690px);
  object-fit: cover;
  object-position: center center;
  border: 1px solid var(--line);
  filter: saturate(0.94) contrast(0.98);
}

/* Button */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 44px;
  min-width: 172px;
  min-height: 46px;
  padding: 12px 28px;
  border: 1px solid #a29b91;
  background: transparent;
  color: var(--text);
  font-size: 12px;
  letter-spacing: 0.13em;
}

.button.dark {
  background: var(--button);
  border-color: var(--button);
  color: #ffffff;
}

/* Section */

.section {
  padding: 144px 0;
}

.concept-section,
.info-section {
  background: var(--paper);
}

.note-section {
  background: var(--mist);
}

.contact-section {
  background: var(--bg);
}

.inner {
  width: min(1040px, calc(100% - 72px));
  margin: 0 auto;
}

.inner.narrow {
  width: min(700px, calc(100% - 72px));
}

.split {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 88px;
  align-items: start;
}

h2 {
  margin-top: 26px;
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 400;
  line-height: 1.85;
  letter-spacing: 0.12em;
}

.text {
  margin-top: 54px;
  display: grid;
  gap: 30px;
  font-size: 15px;
  line-height: 2.35;
}

.signature {
  margin-top: 24px;
  text-align: right;
  color: var(--sub);
  font-size: 13px;
}

/* Information */

.info-list {
  border-top: 1px solid var(--line);
}

.info-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 32px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.info-label {
  color: var(--sub);
  font-size: 12px;
  line-height: 1.8;
}

.info-data {
  font-size: 14px;
  line-height: 1.9;
}

.date-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  margin-bottom: 8px;
}

.date-item:last-child {
  margin-bottom: 0;
}

/* Footer */

.footer {
  padding: 56px 24px;
  background: var(--paper);
  text-align: center;
  color: var(--sub);
}

.footer p {
  margin-bottom: 8px;
  font-size: 12px;
}

.footer small {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 11px;
  letter-spacing: 0.14em;
}

/* Tablet */

@media (max-width: 900px) {
  .hero {
    min-height: auto;
    padding: 72px 0 104px;
  }

  .hero::before {
    inset: 20px;
  }

  .hero-mark {
    display: none;
  }

  .hero-inner {
    width: min(100% - 40px, 720px);
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 58px;
  }

  .hero-visual {
    order: -1;
  }

  .hero-visual img {
    height: auto;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    object-position: center center;
  }

  .section {
    padding: 108px 0;
  }

  .inner,
  .inner.narrow {
    width: min(100% - 40px, 720px);
  }

  .split {
    grid-template-columns: 1fr;
    gap: 52px;
  }
}

/* Mobile */

@media (max-width: 560px) {
  .site {
    font-size: 13px;
    line-height: 1.95;
    letter-spacing: 0.035em;
  }

  .hero {
    min-height: auto;
    padding: 42px 0 68px;
  }

  .hero::before {
    inset: 12px;
  }

  .hero-inner {
    width: calc(100% - 28px);
    gap: 34px;
  }

  .hero h1 {
    margin-top: 24px;
    font-size: 42px;
    line-height: 1.15;
    letter-spacing: 0.14em;
  }

  .en {
    font-size: 10px;
    letter-spacing: 0.16em;
  }

  .hero-copy {
    margin-top: 26px;
    font-size: 14px;
    line-height: 1.95;
    letter-spacing: 0.08em;
  }

  .hero-info {
    margin-top: 30px;
    font-size: 11px;
    line-height: 1.9;
  }

  .hero-visual img {
    height: auto;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    object-position: center center;
  }

  .button {
    width: 100%;
    margin-top: 32px;
    min-height: 44px;
    font-size: 11px;
  }

  .section {
    padding: 72px 0;
  }

  .inner,
  .inner.narrow {
    width: calc(100% - 28px);
  }

  h2 {
    margin-top: 20px;
    font-size: 21px;
    line-height: 1.75;
    letter-spacing: 0.08em;
  }

  .text {
    margin-top: 36px;
    gap: 24px;
    font-size: 13px;
    line-height: 2.05;
    letter-spacing: 0.035em;
  }

  .split {
    gap: 40px;
  }

  .info-row {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 18px 0;
  }

  .info-label {
    font-size: 11px;
  }

  .info-data {
    font-size: 13px;
    line-height: 1.8;
  }

  .date-item {
    grid-template-columns: 1fr;
    gap: 2px;
    margin-bottom: 14px;
  }

  .signature {
    text-align: left;
    font-size: 12px;
  }

  .footer {
    padding: 42px 20px;
  }
}

/* Very Small Mobile */

@media (max-width: 374px) {
  .hero h1 {
    font-size: 38px;
    letter-spacing: 0.12em;
  }

  .hero-copy {
    font-size: 13px;
  }

  .hero-info {
    font-size: 10.5px;
  }

  h2 {
    font-size: 20px;
  }

  .text {
    font-size: 12.5px;
  }
}