@charset "UTF-8";

/* ---------- design tokens ---------- */
:root {
  --ink: #111111;
  --sub: #555555;
  --mute: #999999;
  --line: #e7e7e5;
  --bg: #ffffff;
  --bg-soft: #f7f7f5;

  --serif: "Noto Serif JP", "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  --sans: "Noto Sans JP", "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
  --pad: clamp(72px, 11vw, 70px);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box
}

html {
  scroll-behavior: smooth
}

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.9;
  font-size: 15px;
  letter-spacing: .04em;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: opacity .25s
}

a:hover {
  opacity: .55
}

.sp {
  display: none;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 48px)
}

@media(max-width:560px) {
.sp {
  display: block;
}
.pc {
  display: none;
}
}
/* ---------- typography ---------- */
.en {
  font-size: 11px;
  letter-spacing: .3em;
  color: var(--mute);
  text-transform: uppercase;
  display: block
}

.sec-head {
  margin-bottom: clamp(40px, 6vw, 72px)
}

.sec-head .en {
  margin-bottom: 14px
}

.sec-head h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(28px, 3.4vw, 38px);
  letter-spacing: .08em;
  line-height: 1.6
}

.serif {
  font-family: var(--serif)
}

.lead {
  color: var(--sub);
}

.sec {
  padding: var(--pad) 0
}


.soft {
  background: var(--bg-soft)
}

/* ---------- scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s cubic-bezier(.2, .6, .2, 1), transform .8s cubic-bezier(.2, .6, .2, 1);
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- header ---------- */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px
}

.logo {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: .28em
}

.logo img {
  height: 20px;
  width: auto;
}

nav.gnav {
  display: flex;
  gap: clamp(14px, 2.2vw, 30px)
}

nav.gnav a {
  font-size: 13px;
  letter-spacing: .1em;
  padding: 6px 0
}

nav.gnav a[aria-current="page"] {
  border-bottom: 1px solid var(--ink)
}

.menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 11px;
  letter-spacing: .3em;
  padding: 10px;
  color: var(--ink);
}

@media(max-width:960px) {
  nav.gnav {
    display: none
  }

  .menu-btn {
    display: block
  }
}

/* mobile overlay menu */
.overlay {
  position: fixed;
  inset: 0;
  background: #fff;
  z-index: 150;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 32px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .4s ease, transform .4s ease, visibility .4s;
}

.overlay.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.overlay a {
  font-family: var(--serif);
  font-size: 20px;
  letter-spacing: .14em;
  padding: 13px 0;
  border-bottom: 1px solid var(--line)
}

.overlay a span {
  font-family: var(--sans);
  font-size: 10px;
  letter-spacing: .3em;
  color: var(--mute);
  margin-left: 14px
}

.close-btn {
  position: absolute;
  top: 16px;
  right: 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 11px;
  letter-spacing: .3em;
  padding: 10px;
  color: var(--ink);
}

main {
  padding-top: 64px
}

/* ---------- link / button ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  letter-spacing: .24em;
  margin-top: 36px;
  border: 1px solid var(--ink);
  padding: 15px 34px;
  background: none;
  color: var(--ink);
  cursor: pointer;
  transition: .3s;
}

.btn:hover {
  background: var(--ink);
  color: #fff;
  opacity: 1
}

.btn.fill {
  background: var(--ink);
  color: #fff
}

.btn.fill:hover {
  opacity: .75
}

.tlink {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  letter-spacing: .22em
}

.tlink::after {
  content: "→";
  font-size: 13px
}

/* ---------- grid lists ---------- */
.grid {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line)
}

.g2 {
  grid-template-columns: 1fr 1fr
}

.g3 {
  grid-template-columns: 1fr 1fr 1fr
}

.g4 {
  grid-template-columns: repeat(4, 1fr)
}

@media(max-width:860px) {

  .g3,
  .g4 {
    grid-template-columns: 1fr 1fr
  }
}

@media(max-width:560px) {

  .g2,
  .g3,
  .g4 {
    grid-template-columns: 1fr
  }
}

.cell {
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  padding: clamp(26px, 3.4vw, 44px) clamp(20px, 2.8vw, 36px);
  display: block;
}

.grid .cell:nth-child(odd) {
  border-left: 1px solid var(--line)
}

@media(min-width:561px) {

  .g2 .cell:nth-child(2n+1),
  .g3 .cell,
  .g4 .cell {
    border-left: none
  }

  .grid {
    border-left: 1px solid var(--line)
  }
}

.cell .num {
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--mute)
}

.cell h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 17px;
  letter-spacing: .1em;
  margin: 14px 0 10px;
  line-height: 1.7
}

.cell p {
  font-size: 13px;
  color: var(--sub);
  line-height: 1.9
}

.cell .en-s {
  font-size: 10px;
  letter-spacing: .24em;
  color: var(--mute);
  display: block;
  margin-top: 16px
}

.cell .mini {
  font-size: 12px;
  color: var(--sub);
  line-height: 2.1;
  margin-top: 12px;
  letter-spacing: .03em
}

.domains {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 34px
}

.domains span {
  border: 1px solid var(--line);
  padding: 8px 18px;
  font-size: 10px;
  letter-spacing: .22em;
  color: var(--sub)
}

/* ---------- feature (projects) ---------- */
.feature {
  border-top: 1px solid var(--line)
}

.feature a.feat {
  display: grid;
  grid-template-columns: 200px 1fr auto;
  gap: clamp(20px, 4vw, 56px);
  align-items: baseline;
  padding: clamp(30px, 4.5vw, 32px) 0;
  border-bottom: 1px solid var(--line);
}

@media(max-width:720px) {
  .feature a.feat {
    grid-template-columns: 1fr;
    gap: 10px
  }
  .cell h3 {
  font-size: 22px;
  font-weight: 700;
}
}

.feature .tag {
  font-size: 10px;
  letter-spacing: .24em;
  color: var(--mute)
}

.feature h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(22px, 2.6vw, 27px);
  letter-spacing: .1em
}

.feature h3 small {
  display: block;
  font-family: var(--sans);
  font-size: 12px;
  color: var(--sub);
  letter-spacing: .06em;
  margin-top: 12px;
  font-weight: 400;
  line-height: 1.9
}

.feature .arrow {
  font-size: 18px;
  color: var(--ink)
}

/* ---------- news list ---------- */
.news-list {
  border-top: 1px solid var(--line)
}

.news-list a {
  display: grid;
  grid-template-columns: 110px 130px 1fr;
  gap: clamp(14px, 3vw, 40px);
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

@media(max-width:640px) {
  .news-list a {
    grid-template-columns: 100px 1fr;
    grid-template-rows: auto auto;
    gap: 0px
  }

  .news-list a .nt {
    grid-column: 1/-1
  }
  .feature h3 {
  font-weight: 700;
}

}

.news-list time {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--mute)
}

.news-list .cat {
  font-size: 10px;
  letter-spacing: .2em;
  color: var(--sub);
  border: 1px solid var(--line);
  text-align: center;
  padding: 3px 10px;
  align-self: center;
  width: fit-content;

}

.news-list .nt {
  font-size: 14px;
  line-height: 1.8
}

/* ---------- works / region cards ---------- */
.work-card .thumb {
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--mute);
  font-size: 10px;
  letter-spacing: .3em;
  margin-bottom: 18px;
}

.work-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.works-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: clamp(24px, 3.4vw, 44px)
}

@media(max-width:860px) {
  .works-grid {
    grid-template-columns: 1fr 1fr
  }
}

@media(max-width:560px) {
  .works-grid {
    grid-template-columns: 1fr
  }
}

.work-card .cat-s {
  font-size: 10px;
  letter-spacing: .22em;
  color: var(--mute)
}

.work-card h3 {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .06em;
  margin-top: 8px;
  line-height: 1.7
}

.work-card p {
  font-size: 12px;
  color: var(--sub);
  margin-top: 6px
}

/* ---------- CTA ---------- */
.cta {
  background:
    linear-gradient(rgba(70, 70, 70, .6), rgba(70, 70, 70, .6)),
    url(../img/common/cta_bg.jpg);
  background-size: cover;
  background-position: center;
  color: #fff;
  text-align: center;
  padding: clamp(72px, 10vw, 130px) 0
}

.cta .en {
  color: #fff;
}

.cta h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 38px;
  letter-spacing: .12em;
  margin: 18px 0 30px;
  line-height: 1.8;
}

.cta p {
  color: #fff;
  font-size: 13px
}

.cta .btn {
  border-color: #fff;
  color: #fff;
  font-size: 16px;
}

.cta .btn:hover {
  background: #fff;
  color: var(--ink)
}

@media(max-width:720px) {
.cta h2 {
  font-size: 24px;
}
}

/* ---------- footer ---------- */
footer {
  border-top: 1px solid var(--line);
  padding: clamp(48px, 7vw, 80px) 0 40px
}

.ft {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px
}

@media(max-width:720px) {
  .ft {
    grid-template-columns: 1fr
  }
}

.ft .logo {
  margin-bottom: 18px
}

.ft address {
  font-style: normal;
  font-size: 12px;
  color: var(--sub);
  line-height: 2.1
}

.ft nav {
  display: grid;
  grid-template-columns: auto auto;
  gap: 10px 48px;
  font-size: 12px;
  letter-spacing: .14em
}

.copy {
  margin-top: 56px;
  font-size: 10px;
  color: var(--mute);
  letter-spacing: .2em;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px
}

/* ---------- utility ---------- */
.note {
  font-size: 11px;
  color: var(--mute);
  margin-top: 26px;
  letter-spacing: .08em
}

.mt-l {
  margin-top: clamp(48px, 7vw, 88px)
}

.mt-m {
  margin-top: 40px
}