:root {
  --paper: #f7f4ec;
  --white: #fff;
  --ink: #1d2526;
  --muted: #6e746f;
  --line: rgba(29, 37, 38, 0.14);
  --soft: #e8e1d3;
  --sage: #d8e0d6;
  --blue: #7d8c99;
  --navy: #2a3940;
  --brown: #8c735d;
  --font-jp: "Zen Kaku Gothic New", "Yu Gothic", "Hiragino Sans", system-ui, sans-serif;
  --font-en: "Albert Sans", "Zen Kaku Gothic New", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: var(--font-jp);
  letter-spacing: 0;
}
img { display: block; width: 100%; height: 100%; object-fit: cover; }
a { color: inherit; text-decoration: none; }
.svg-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

@keyframes softRise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mv-logo,
.mv-title-en,
.mv-title-ja,
.mv-subcopy,
.mv-actions,
.news-lines,
.mv-photo {
  animation: softRise 1100ms ease both;
}
.mv-title-en { animation-delay: 120ms; }
.mv-title-ja { animation-delay: 240ms; }
.mv-subcopy { animation-delay: 360ms; }
.mv-actions { animation-delay: 480ms; }
.news-lines { animation-delay: 620ms; }
.mv-photo { animation-delay: 220ms; }

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 1000ms ease, transform 1000ms ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.side-rail {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 30;
  width: 86px;
  display: grid;
  grid-template-rows: 92px 1fr 150px;
  justify-items: center;
  background: rgba(255, 255, 255, 0.88);
  border-right: 1px solid var(--line);
  backdrop-filter: blur(16px);
}
.side-rail::after {
  position: absolute;
  top: 96px;
  bottom: 150px;
  left: 50%;
  width: 1px;
  content: "";
  background: linear-gradient(180deg, transparent, rgba(29, 37, 38, 0.16), transparent);
}
.rail-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--white);
  background: var(--navy);
  font: 600 22px/1 var(--font-en);
}
.rail-mark img {
  width: auto;
  height: 28px;
  object-fit: contain;
}
.rail-toggle {
  align-self: center;
  position: relative;
  z-index: 32;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.72);
  cursor: pointer;
}
.rail-toggle span {
  grid-area: 1 / 1;
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: transform 260ms ease, opacity 200ms ease;
}
.rail-toggle span:nth-child(1) { transform: translateY(-6px); }
.rail-toggle span:nth-child(3) { transform: translateY(6px); }
.rail-toggle[aria-expanded="true"] span:nth-child(1) { transform: rotate(45deg); }
.rail-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.rail-toggle[aria-expanded="true"] span:nth-child(3) { transform: rotate(-45deg); }
.rail-menu {
  position: fixed;
  top: 50%;
  left: 86px;
  z-index: 31;
  display: grid;
  gap: 2px;
  width: min(300px, calc(100vw - 110px));
  padding: 18px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--line);
  box-shadow: 0 24px 70px rgba(29, 37, 38, 0.16);
  backdrop-filter: blur(18px);
  opacity: 0;
  pointer-events: none;
  transform: translate(-12px, -50%);
  transition: opacity 220ms ease, transform 220ms ease;
}
.rail-menu.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translate(0, -50%);
}
.rail-menu a {
  display: flex;
  align-items: center;
  min-height: 46px;
  padding: 0 16px;
  border-bottom: 1px solid rgba(29, 37, 38, 0.08);
  font-size: 14px;
  font-weight: 700;
}
.rail-menu a:last-child { border-bottom: 0; }
.rail-menu a:hover { color: var(--blue); }
.rail-toggle:hover {
  color: var(--white);
  background: var(--navy);
}
.rail-caption {
  position: relative;
  z-index: 1;
  writing-mode: vertical-rl;
  color: var(--muted);
  font: 500 10px/1 var(--font-en);
  letter-spacing: 0.18em;
}
.mobile-header { display: none; }

main { margin-left: 86px; overflow: hidden; }

.mv {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(360px, 0.95fr) minmax(420px, 0.82fr);
  gap: clamp(32px, 6vw, 88px);
  padding: 28px 28px 28px clamp(56px, 8vw, 112px);
}
.mv-copy {
  position: relative;
  min-height: calc(100vh - 56px);
  padding-top: 24px;
}
.en-lead {
  margin: 0;
  color: var(--muted);
  font: 500 13px/1.7 var(--font-en);
}
.mv-logo {
  display: inline-flex;
  width: clamp(148px, 16.2vw, 225px);
  height: auto;
}
.mv-logo img {
  width: 100%;
  height: auto;
  object-fit: contain;
}
.mv-title {
  position: absolute;
  left: 0;
  top: 24%;
  display: grid;
  gap: 18px;
  color: #2b2d2d;
  letter-spacing: 0;
}
.mv-title-en {
  max-width: 860px;
  font: 300 clamp(42px, 5.1vw, 68px)/1.06 var(--font-en);
  letter-spacing: 0.04em;
}
.mv-title-ja {
  font-size: clamp(20px, 2.2vw, 30px);
  font-weight: 700;
  line-height: 1.72;
}
.mv-subcopy {
  max-width: 650px;
  margin: 4px 0 0;
  color: #4d5652;
  font-size: 15px;
  line-height: 2.08;
}
.mv-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px 28px;
  margin-top: 8px;
}
.mv-actions .pill-link { margin-top: 0; }
.news-lines {
  position: absolute;
  left: 0;
  top: 82%;
  display: grid;
  gap: 12px;
}
.news-heading {
  margin: 0;
  color: var(--ink);
  font: 600 13px/1 var(--font-en);
  letter-spacing: 0.06em;
}
.news-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.news-line {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin: 0;
  color: var(--muted);
  font: 500 13.5px/1.45 var(--font-en);
}
.news-line span {
  color: var(--muted);
}
.news-line time {
  flex: 0 0 auto;
  color: var(--ink);
}
.mv-photo {
  position: relative;
  min-height: calc(100vh - 56px);
  margin: 0;
  overflow: hidden;
}
.mv-photo::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.02), rgba(0, 0, 0, 0.12));
}
.mv-photo img { filter: saturate(0.86) contrast(0.98); }
.mv-photo figcaption {
  position: absolute;
  z-index: 1;
  top: clamp(74px, 12vh, 118px);
  left: 14%;
  writing-mode: vertical-rl;
  color: var(--white);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.9;
  text-shadow: 0 2px 16px rgba(29, 37, 38, 0.42);
}

.intro {
  display: grid;
  grid-template-columns: 0.82fr 1fr;
  gap: clamp(48px, 9vw, 150px);
  padding: clamp(120px, 16vw, 210px) clamp(56px, 8vw, 130px);
  background: var(--white);
}
.section-label {
  margin: 0 0 22px;
  color: var(--muted);
  font: 500 15px/1 var(--font-en);
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 0;
  font-size: clamp(28px, 3.4vw, 44px);
  line-height: 1.78;
  font-weight: 500;
}
h1 span { display: block; }
h2 {
  margin-bottom: 0;
  font: 300 clamp(38px, 4.7vw, 64px)/1.04 var(--font-en);
  letter-spacing: 0;
}
.jp-heading {
  font-family: var(--font-jp);
  font-weight: 500;
  letter-spacing: 0;
}
.feature-content .jp-heading,
.about-section .jp-heading,
.places .jp-heading,
.information .jp-heading,
.company .jp-heading {
  font-size: clamp(28px, 3.3vw, 44px);
  line-height: 1.45;
}
h3 {
  font-size: 20px;
  line-height: 1.75;
  font-weight: 700;
}
.intro-body p {
  max-width: 560px;
  color: #4d5652;
  font-size: 16px;
  line-height: 2.25;
}
.about-lead {
  max-width: 460px;
  margin: 26px 0 0;
}
.about-lead p {
  margin: 0 0 14px;
  color: #4d5652;
  line-height: 2;
}
.about-lead p:last-child { margin-bottom: 0; }
.challenge {
  background: linear-gradient(180deg, var(--white), #fbfaf6);
}
.worry-list {
  display: grid;
  gap: 12px;
  max-width: 540px;
  padding: 0;
  margin: 30px 0;
  list-style: none;
}
.worry-list li {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 58px;
  padding: 15px 18px;
  background: rgba(247, 244, 236, 0.78);
  border: 1px solid rgba(29, 37, 38, 0.08);
  color: #37403c;
  font-size: 15px;
  font-weight: 700;
}
.worry-list li::before {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  content: "";
  background: var(--blue);
  border-radius: 50%;
  opacity: 0.72;
}
.pill-link {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-width: 230px;
  min-height: 48px;
  margin-top: 24px;
  padding: 0 14px 0 28px;
  color: var(--white);
  background: var(--ink);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  transition: background 420ms ease, transform 420ms ease;
}
.pill-link:hover {
  background: var(--navy);
  transform: translateY(-3px);
}
.pill-link svg {
  width: 20px;
  height: 20px;
  padding: 5px;
  color: var(--ink);
  background: var(--white);
  border-radius: 50%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  transition: transform 420ms ease;
}
.pill-link:hover svg {
  transform: translateX(2px);
}
.visual-band {
  position: relative;
  height: min(78vh, 760px);
  margin-left: -86px;
  overflow: hidden;
}
.visual-band::after {
  position: absolute;
  inset: 0;
  content: "";
  background: rgba(22, 26, 22, 0.28);
}
.visual-band img { filter: saturate(0.8) contrast(0.96); }
.vertical-copy {
  position: absolute;
  z-index: 1;
  top: 18%;
  left: calc(86px + 44px);
  writing-mode: vertical-rl;
  color: var(--white);
  font-weight: 700;
  line-height: 2;
}

.projects {
  --projects-x-pad: clamp(42px, 7vw, 112px);
  padding: clamp(94px, 14vw, 160px) var(--projects-x-pad);
  color: var(--white);
  background: #151b1c;
}
.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
}
.section-head a {
  padding-bottom: 8px;
  border-bottom: 1px solid currentColor;
  color: rgba(255,255,255,.78);
  font-size: 13px;
}
.projects .section-label,
.projects h2 { color: var(--white); }
.service-intro {
  position: relative;
  left: calc(50vw - 86px - var(--projects-x-pad));
  width: min(720px, calc(100vw - 172px));
  margin: 0 0 52px;
  text-align: center;
  transform: translateX(-50%);
}
.service-heading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin: 0 auto 24px;
  text-align: center;
}
.service-heading .section-label {
  display: block;
  width: 100%;
  max-width: 720px;
  margin-bottom: 14px;
  color: rgba(255,255,255,.58);
  font-size: 13px;
  text-align: center !important;
}
.service-heading .jp-heading {
  display: block;
  width: 100%;
  max-width: 720px;
  margin-inline: auto;
  font-size: clamp(28px, 3.3vw, 44px);
  line-height: 1.45;
  text-align: center !important;
}
.service-lead {
  max-width: 720px;
  margin: 0 auto;
  color: rgba(255,255,255,.72);
  line-height: 2;
  text-align: center;
}
.project-list {
  display: grid;
  grid-auto-rows: 1fr;
  gap: 1px;
}
.project-card {
  display: grid;
  grid-template-columns: minmax(198px, 34.2%) 1fr;
  height: 100%;
  min-height: 282px;
  background: rgba(255,255,255,.06);
  border-top: 1px solid rgba(255,255,255,.18);
}
.project-card:last-child { border-bottom: 1px solid rgba(255,255,255,.18); }
.project-image { overflow: hidden; }
.project-image img { filter: saturate(.78); }
.project-text {
  display: grid;
  align-content: center;
  padding: 30px clamp(26px, 4.5vw, 64px);
}
.project-text p {
  margin-bottom: 18px;
  color: rgba(255,255,255,.58);
  font: 500 16px/1 var(--font-en);
}
.project-text h3 {
  max-width: 680px;
  color: var(--white);
  font-size: clamp(19px, 2.05vw, 27px);
}
.project-text ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 18px 0 0;
  list-style: none;
}
.project-text li {
  padding: 6px 12px;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 999px;
  color: rgba(255,255,255,.78);
  font-size: 13px;
}

.feature {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(360px, 1fr);
  gap: clamp(48px, 9vw, 132px);
  align-items: center;
  padding: clamp(100px, 14vw, 170px) clamp(42px, 7vw, 112px);
  background: var(--paper);
}
.feature-photo {
  height: min(72vh, 650px);
  overflow: hidden;
}
.feature-content p {
  max-width: 620px;
  margin-top: 34px;
  color: #4d5652;
  font-size: 16px;
  line-height: 2.15;
}
#feature {
  scroll-margin-top: 96px;
}
.flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 40px 0 8px;
}
.flow > span {
  display: grid;
  gap: 10px;
  place-items: center;
  min-height: 104px;
  padding: 16px 10px;
  background: var(--white);
  border: 1px solid rgba(29,37,38,.1);
  font-size: 13px;
  font-weight: 700;
}
.flow-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.flow-number {
  position: relative;
  top: 1px;
  color: #668196;
  font: 600 12px/1 var(--font-en);
}
.flow svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: var(--blue);
  stroke-width: 2;
}
.small-note {
  padding-left: 18px;
  border-left: 2px solid var(--blue);
  font-weight: 700;
}
.about-section {
  background: var(--paper);
}
.statement-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  max-width: 720px;
  margin-top: 0;
  background: var(--line);
}
.statement-grid article {
  min-height: 0;
  padding: 28px 30px;
  background: var(--white);
}
.statement-grid span {
  display: block;
  margin-bottom: 14px;
  color: var(--blue);
  font: 600 13px/1 var(--font-en);
}
.statement-grid strong {
  display: block;
  font-size: 20px;
  line-height: 1.75;
}
.statement-grid p {
  margin: 12px 0 0;
  color: #4d5652;
  font-size: 15px;
  line-height: 2;
}

.places {
  padding: clamp(78px, 10vw, 118px) clamp(42px, 7vw, 112px);
  background: var(--white);
}
.places .section-head { margin-bottom: 26px; }
.places .jp-heading {
  font-size: clamp(24px, 2.8vw, 36px);
}
.places-lead {
  max-width: 680px;
  color: #4d5652;
  line-height: 2.1;
}
.place-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 38px;
  background: var(--line);
}
.place-grid article {
  display: grid;
  grid-template-columns: minmax(124px, 150px) 1fr;
  column-gap: 24px;
  row-gap: 10px;
  align-content: start;
  align-items: start;
  min-height: 0;
  padding: 26px;
  background: var(--paper);
}
.place-photo {
  grid-row: 1 / span 3;
  width: 100%;
  aspect-ratio: 1;
  overflow: hidden;
}
.place-photo img {
  filter: saturate(.82) contrast(.96);
}
.place-grid span {
  grid-column: 2;
  color: var(--blue);
  font: 600 13px/1 var(--font-en);
}
.place-grid h3 {
  grid-column: 2;
  margin-bottom: 0;
  font-size: 18px;
  line-height: 1.72;
}
.place-grid a {
  grid-column: 2;
  justify-self: start;
  display: inline-flex;
  margin-top: 2px;
  padding-bottom: 6px;
  border-bottom: 1px solid currentColor;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}
.about-projects {
  grid-column: 1 / -1;
  padding: 34px 0 0;
  margin-top: 16px;
  border-top: 1px solid rgba(29,37,38,.12);
  background: transparent;
}
.about-projects .section-head {
  display: block;
  margin: 0 0 14px;
}
.about-projects .section-label {
  margin-bottom: 10px;
  font-size: 12px;
}
.about-projects .jp-heading {
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.5;
}
.about-projects .places-lead {
  max-width: 880px;
  font-size: 14px;
  line-height: 1.9;
}
.about-projects .place-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
  background: transparent;
}
.about-projects .place-grid article {
  grid-template-columns: minmax(104px, 128px) 1fr;
  column-gap: 20px;
  row-gap: 10px;
  padding: 20px;
  border: 1px solid rgba(29,37,38,.1);
  background: var(--white);
}
.about-projects .place-copy {
  grid-column: 2;
  display: grid;
  gap: 10px;
  align-content: start;
}
.about-projects .place-grid h3 {
  display: block;
  margin: 0;
  margin-block: 0;
  padding: 0;
  grid-column: auto;
  color: var(--ink);
  font-family: var(--font-en);
  font-size: 20px;
  font-weight: 500;
  line-height: 1.18;
}
.about-projects .place-grid p {
  grid-column: auto;
  margin: 0;
  margin-block: 0;
  font-size: 14px;
  line-height: 1.65;
}
.about-projects .place-grid a {
  grid-column: 2;
  margin-top: 0;
  font-size: 12px;
}
.information {
  display: grid;
  grid-template-columns: 0.82fr 1fr;
  column-gap: clamp(48px, 9vw, 150px);
  row-gap: 12px;
  align-items: start;
  padding: clamp(96px, 14vw, 160px) clamp(42px, 7vw, 112px);
  background: var(--white);
}
.company {
  display: grid;
  grid-template-columns: 0.82fr 1fr;
  column-gap: clamp(48px, 9vw, 150px);
  row-gap: 0;
  align-items: start;
  padding: clamp(96px, 13vw, 150px) clamp(42px, 7vw, 112px);
  background: var(--white);
}
.information .section-head,
.company .section-head {
  display: block;
  grid-column: 1;
  margin-bottom: 0;
}
.information .section-head {
  grid-row: 1;
}
.company .section-head {
  grid-row: 1;
}
.information > .info-list,
.company > .info-list {
  grid-column: 2;
}
.info-list {
  display: grid;
  border-top: 1px solid var(--line);
}
.info-list article {
  display: grid;
  grid-template-columns: 130px 1fr auto;
  gap: 24px;
  align-items: center;
  min-height: 78px;
  border-bottom: 1px solid var(--line);
}
.price-list article {
  grid-template-columns: 1fr auto;
}
.info-list time {
  color: var(--muted);
  font: 500 13px/1 var(--font-en);
}
.info-list span { font-size: 16px; }
.info-list strong { font-size: 18px; }
.info-note,
.company-message {
  max-width: 760px;
  color: #4d5652;
  line-height: 2.1;
}
.info-note {
  margin: 22px 0 0;
  padding-left: 18px;
  border-left: 2px solid var(--blue);
  font-weight: 700;
}
.price-lead p {
  margin: 0 0 14px;
  color: #4d5652;
  line-height: 2;
}
.price-lead {
  max-width: 460px;
  margin: 26px 0 0;
}
.price-lead p:last-child { margin-bottom: 0; }
.company-message {
  max-width: 460px;
  margin: 26px 0 0;
}
.company-message p {
  margin: 0 0 14px;
}
.company-message p:last-child { margin-bottom: 0; }

.contact {
  display: grid;
  place-items: center;
  gap: 0;
  padding: clamp(110px, 14vw, 170px) 28px;
  text-align: center;
  background: #f1ede4;
}
.contact h2 {
  font-family: var(--font-jp);
  font-weight: 500;
  font-size: clamp(28px, 3.3vw, 44px);
  line-height: 1.55;
}
.contact p {
  max-width: 720px;
  color: #4d5652;
  font-size: 16px;
  line-height: 2.1;
}
.contact-form {
  display: grid;
  gap: 18px;
  width: min(760px, 100%);
  margin-top: 34px;
  padding: clamp(26px, 4vw, 42px);
  border: 1px solid rgba(29, 37, 38, 0.1);
  background: rgba(255, 255, 255, 0.62);
  text-align: left;
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.form-field {
  display: grid;
  gap: 9px;
}
.form-field span {
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
}
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  min-height: 48px;
  padding: 13px 15px;
  border: 1px solid rgba(29, 37, 38, 0.14);
  border-radius: 0;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.86);
  font: 500 15px/1.7 var(--font-jp);
  letter-spacing: 0;
}
.form-field select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 44px;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%236e746f' stroke-width='1.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-position: right 20px center;
  background-size: 10px 6px;
  background-repeat: no-repeat;
}
.form-field input::placeholder,
.form-field textarea::placeholder {
  color: rgba(29, 37, 38, 0.34);
}
.form-field textarea {
  min-height: 150px;
  resize: vertical;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: 2px solid rgba(125, 140, 153, 0.28);
  outline-offset: 2px;
  border-color: rgba(42, 57, 64, 0.38);
}
.form-submit {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  justify-self: center;
  gap: 18px;
  min-width: 230px;
  min-height: 48px;
  margin-top: 8px;
  padding: 0 48px;
  border: 0;
  border-radius: 999px;
  color: var(--white);
  background: var(--ink);
  font: 700 14px/1 var(--font-jp);
  cursor: pointer;
  transition: background 420ms ease, transform 420ms ease;
}
.form-submit:hover {
  background: var(--navy);
  transform: translateY(-3px);
}
.form-submit:disabled {
  cursor: wait;
  opacity: 0.72;
  transform: none;
}
.form-submit svg {
  position: absolute;
  right: 14px;
  width: 20px;
  height: 20px;
  padding: 5px;
  color: var(--ink);
  background: var(--white);
  border-radius: 50%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  transition: transform 420ms ease;
}
.form-submit:hover svg {
  transform: translateX(2px);
}
.form-status {
  justify-self: center;
  min-height: 1.8em;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
  text-align: center;
}
.form-status.is-success { color: var(--ink); }
.form-status.is-error { color: #8c5d5d; }
footer {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 34px clamp(42px, 7vw, 112px) 34px calc(86px + clamp(42px, 7vw, 112px));
  color: rgba(255,255,255,.72);
  background: #151b1c;
  font-family: var(--font-en);
}
footer p, footer small { margin: 0; }
.footer-brand {
  display: grid;
  gap: 8px;
}
.footer-brand p {
  color: var(--white);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.08em;
}
.footer-brand small {
  font-family: var(--font-jp);
}
.footer-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}
.footer-top {
  position: absolute;
  top: -62px;
  right: clamp(42px, 7vw, 112px);
  z-index: 2;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 50%;
  color: rgba(255,255,255,.86);
  background: #151b1c;
  transition: color 420ms ease, border-color 420ms ease, background 420ms ease, transform 420ms ease;
}
.footer-top svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.footer-top:hover {
  color: var(--white);
  border-color: rgba(255,255,255,.5);
  background: #1f282a;
  transform: translateY(-4px);
}

@media (max-width: 900px) {
  .side-rail { display: none; }
  .mobile-header {
    position: sticky;
    top: 0;
    z-index: 40;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    background: rgba(255,255,255,.92);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(14px);
  }
  .mobile-brand {
    display: inline-flex;
    align-items: center;
    width: 124px;
  }
  .mobile-brand img {
    width: 100%;
    height: auto;
    object-fit: contain;
  }
  .nav-toggle {
    position: relative;
    z-index: 42;
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    padding: 0;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: transparent;
    color: var(--ink);
    cursor: pointer;
    transition: color 360ms ease, background 360ms ease;
  }
  .nav-toggle:hover,
  .nav-toggle[aria-expanded="true"] {
    color: var(--white);
    background: var(--navy);
  }
  .nav-toggle span {
    grid-area: 1 / 1;
    display: block;
    width: 17px;
    height: 2px;
    background: currentColor;
    transition: transform 320ms ease, opacity 240ms ease;
  }
  .nav-toggle span:nth-child(1) { transform: translateY(-6px); }
  .nav-toggle span:nth-child(3) { transform: translateY(6px); }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: rotate(-45deg); }
  .mobile-nav {
    position: fixed;
    top: 78px;
    right: 16px;
    left: 16px;
    z-index: 41;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 18px;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid var(--line);
    box-shadow: 0 24px 70px rgba(29, 37, 38, 0.14);
    backdrop-filter: blur(18px);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 320ms ease, transform 320ms ease;
  }
  .mobile-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
  .mobile-nav a {
    display: flex;
    align-items: center;
    min-height: 46px;
    padding: 0 16px;
    border-bottom: 1px solid rgba(29, 37, 38, 0.08);
    font-size: 14px;
    font-weight: 700;
    transition: color 280ms ease;
  }
  .mobile-nav a:last-child { border-bottom: 0; }
  .mobile-nav a:hover { color: var(--blue); }
  main { margin-left: 0; }
  .service-intro {
    left: auto;
    width: min(720px, 100%);
    margin: 0 auto 52px;
    transform: none;
  }
  .mv {
    grid-template-columns: 1fr;
    min-height: auto;
    gap: 30px;
    padding: 18px 20px 70px;
  }
  .mv-copy {
    order: 2;
    display: grid;
    gap: 24px;
    min-height: auto;
    padding-top: 0;
  }
  .mv-logo { display: none; }
  .mv-title {
    position: static;
    gap: 16px;
  }
  .news-lines {
    position: static;
    margin-top: 30px;
  }
  .mv-photo {
    order: 1;
    height: clamp(360px, 46vh, 420px);
    min-height: 0;
  }
  .intro,
  .feature,
  .information,
  .company {
    grid-template-columns: 1fr;
    padding-inline: 24px;
  }
  .information .section-head,
  .company .section-head {
    grid-column: auto;
    grid-row: auto;
    margin-bottom: 28px;
  }
  .information > .info-list,
  .company > .info-list {
    grid-column: auto;
  }
  .visual-band { margin-left: 0; height: 54vh; }
  .vertical-copy {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }
  .vertical-copy.reveal {
    transform: translate(-50%, calc(-50% + 22px));
  }
  .vertical-copy.reveal.is-visible {
    transform: translate(-50%, -50%);
  }
  .project-list { grid-auto-rows: auto; }
  .project-card { grid-template-columns: 1fr; }
  .project-image { height: 234px; }
  .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .statement-grid { grid-template-columns: 1fr; }
  .place-grid { grid-template-columns: 1fr; }
  .place-grid article { grid-template-columns: 1fr; }
  .place-photo {
    grid-row: auto;
    width: min(160px, 100%);
  }
  .place-grid span,
  .place-copy,
  .place-grid h3,
  .place-grid p,
  .place-grid a { grid-column: auto; }
  .about-projects .place-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .about-projects .place-grid article {
    grid-template-columns: 1fr;
  }
  .about-projects .place-photo {
    width: 100%;
    height: 180px;
    aspect-ratio: auto;
  }
  .about-projects .place-copy,
  .about-projects .place-grid a {
    grid-column: auto;
  }
  .form-grid { grid-template-columns: 1fr; }
  .info-list article { grid-template-columns: 1fr; gap: 8px; padding: 20px 0; }
  footer {
    align-items: flex-start;
    flex-direction: column;
    padding: 28px 24px;
  }
  .footer-top {
    top: -58px;
    right: 24px;
  }
  .footer-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }
}

@media (max-width: 560px) {
  .mv-title { gap: 18px; }
  .mv-title-en { font-size: 40px; letter-spacing: 0.03em; }
  .mv-title-ja { font-size: 20px; }
  .mv-subcopy { font-size: 14px; line-height: 1.9; }
  .mv-actions { align-items: start; flex-direction: column; }
  h1 { font-size: 26px; }
  h2 { font-size: 36px; }
  .projects .jp-heading { font-size: 30px; }
  .mv-photo {
    height: 400px;
    min-height: 0;
  }
  .section-head { align-items: start; flex-direction: column; }
  .projects .section-head {
    align-items: center;
    justify-items: center;
    text-align: center;
  }
  .projects,
  .feature,
  .places,
  .information,
  .company { padding-inline: 22px; }
  .about-projects .place-grid article {
    padding: 18px;
  }
  .about-projects .place-photo {
    height: 160px;
  }
  .about-projects .place-copy,
  .about-projects .place-grid a {
    grid-column: auto;
  }
  .flow { grid-template-columns: 1fr; }
  .contact h2 { font-size: 28px; }
  .contact p br { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}