:root {
  --green-950: #043426;
  --green-900: #064531;
  --green-800: #07543b;
  --green-700: #0b6648;
  --green-100: #e6efe9;
  --lime: #9fbd52;
  --ivory: #f6f3e9;
  --ivory-deep: #ece8dc;
  --white: #fff;
  --ink: #17231e;
  --muted: #5c6963;
  --line: rgba(6, 69, 49, .14);
  --shadow: 0 20px 60px rgba(6, 54, 39, .12);
  --serif: "Noto Serif JP", "Yu Mincho", serif;
  --sans: "Noto Sans JP", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: var(--sans); line-height: 1.8; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { color: inherit; font: inherit; }
.container { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.section { padding: 112px 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 1000; transform: translateY(-150%); background: var(--white); padding: 8px 16px; border-radius: 4px; }
.skip-link:focus { transform: none; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 100; height: 88px; background: rgba(255,255,255,.94); border-bottom: 1px solid transparent; transition: height .25s, box-shadow .25s, border-color .25s; backdrop-filter: blur(16px); }
.site-header.is-scrolled { height: 76px; border-color: var(--line); box-shadow: 0 8px 30px rgba(6, 54, 39, .07); }
.header-inner { width: min(1420px, calc(100% - 40px)); height: 100%; margin: auto; display: flex; align-items: center; gap: 32px; }
.brand { display: inline-flex; align-items: center; flex: 0 0 auto; gap: 13px; }
.brand img { width: 62px; height: 62px; border-radius: 50%; object-fit: cover; }
.site-header.is-scrolled .brand img { width: 52px; height: 52px; }
.brand img, .brand-copy { transition: .25s; }
.brand-copy { display: grid; line-height: 1.45; }
.brand-copy strong { font-family: var(--serif); font-size: 20px; letter-spacing: .06em; }
.brand-copy small { color: var(--green-800); font-size: 10px; font-weight: 700; letter-spacing: .12em; }
.global-nav { display: flex; align-items: center; justify-content: center; gap: clamp(14px, 1.8vw, 30px); margin-left: auto; }
.global-nav a { position: relative; padding: 28px 0; font-size: 13px; font-weight: 600; white-space: nowrap; }
.global-nav a::after { content: ""; position: absolute; bottom: 20px; left: 50%; width: 0; height: 2px; background: var(--green-700); transform: translateX(-50%); transition: width .2s; }
.global-nav a:hover::after, .global-nav a:focus-visible::after { width: 100%; }
.header-contact { min-width: 184px; height: 56px; display: flex; align-items: center; justify-content: center; gap: 10px; color: var(--white); background: var(--green-800); border-radius: 2px; line-height: 1.25; transition: background .2s, transform .2s; }
.header-contact:hover { background: var(--green-950); transform: translateY(-2px); }
.header-contact svg, .button svg { width: 21px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.header-contact span { font-size: 17px; font-weight: 700; letter-spacing: .03em; }
.header-contact small { display: block; font-size: 9px; font-weight: 500; letter-spacing: .14em; }
.menu-button { display: none; }

.hero { position: relative; min-height: 820px; padding-top: 88px; overflow: hidden; background: var(--ivory); }
.hero-media { position: absolute; inset: 88px 0 0; background: url("assets/images/hero-demolition.png") 66% center / cover no-repeat; }
.hero-shade { position: absolute; inset: 88px 0 0; background: linear-gradient(90deg, rgba(250,249,244,.98) 0%, rgba(250,249,244,.93) 28%, rgba(250,249,244,.36) 51%, rgba(250,249,244,0) 72%), linear-gradient(0deg, rgba(4,52,38,.22), transparent 35%); }
.hero-content { position: relative; z-index: 2; padding-top: 128px; }
.eyebrow, .section-kicker { margin: 0 0 20px; color: var(--green-700); font-size: 12px; font-weight: 700; letter-spacing: .22em; }
.eyebrow::before, .section-kicker::before { content: ""; display: inline-block; width: 32px; height: 1px; margin: 0 12px 4px 0; background: currentColor; }
.hero h1 { margin: 0; color: var(--green-950); font-family: var(--serif); font-size: clamp(54px, 5.35vw, 84px); line-height: 1.32; letter-spacing: .06em; }
.hero h1 em { font-style: normal; }
.hero-lead { margin: 28px 0 0; font-size: 17px; font-weight: 500; line-height: 2; letter-spacing: .06em; }
.hero-actions { display: flex; gap: 12px; margin-top: 36px; }
.button { min-height: 58px; padding: 0 28px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; border: 1px solid transparent; font-size: 15px; font-weight: 700; letter-spacing: .05em; transition: transform .2s, background .2s, color .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--white); background: var(--green-800); box-shadow: 0 14px 32px rgba(6,69,49,.23); }
.button-primary:hover { background: var(--green-950); }
.button-ghost { border-color: rgba(6,69,49,.35); background: rgba(255,255,255,.66); }
.button-ghost:hover { background: var(--white); }
.hero-note { display: inline-flex; align-items: center; gap: 8px; margin: 15px 0 0; color: var(--green-800); font-size: 12px; font-weight: 700; }
.hero-note::before { content: "✓"; display: grid; place-items: center; width: 18px; height: 18px; color: var(--white); background: var(--green-700); border-radius: 50%; font-size: 10px; }
.trust-row { position: absolute; z-index: 3; left: 50%; bottom: 30px; transform: translateX(-50%); display: grid; grid-template-columns: repeat(3, 1fr); max-width: 780px; padding: 14px; background: rgba(255,255,255,.92); box-shadow: var(--shadow); backdrop-filter: blur(12px); }
.trust-item { display: flex; align-items: center; gap: 14px; min-height: 78px; padding: 8px 18px; border-right: 1px solid var(--line); }
.trust-item:last-child { border: 0; }
.trust-icon { display: grid; place-items: center; width: 48px; height: 48px; flex: 0 0 auto; color: var(--green-800); background: var(--green-100); border-radius: 50%; font-family: var(--serif); font-weight: 700; }
.trust-item p { display: grid; margin: 0; line-height: 1.45; }
.trust-item strong { color: var(--green-950); font-size: 13px; }
.trust-item small { color: var(--muted); font-size: 10px; }
.image-caption { position: absolute; z-index: 2; margin: 0; padding: 4px 8px; color: rgba(255,255,255,.86); background: rgba(4,52,38,.65); font-size: 9px; letter-spacing: .04em; }
.hero-caption { right: 14px; bottom: 8px; }

.section-heading h2 { margin: 0; color: var(--green-950); font-family: var(--serif); font-size: clamp(36px, 4vw, 56px); line-height: 1.5; letter-spacing: .06em; }
.section-heading h2 span { color: var(--green-700); }
.section-heading-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 60px; margin-bottom: 56px; }
.section-heading-row > p { max-width: 460px; margin: 0 0 12px; color: var(--muted); }
.section-heading.centered { max-width: 740px; margin: 0 auto 64px; text-align: center; }
.section-heading.centered .section-kicker::before { display: none; }
.section-heading.centered > p:last-child { color: var(--muted); }

.intro { background: linear-gradient(180deg, #fff, #fbfaf6); }
.intro-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 90px; align-items: end; }
.intro-copy { padding-left: 34px; border-left: 1px solid var(--line); color: var(--muted); }
.intro-copy p { margin: 0 0 18px; }
.intro-copy p:last-child { margin: 0; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 72px; }
.feature-card { position: relative; min-height: 340px; padding: 44px 36px 36px; background: var(--white); border: 1px solid var(--line); transition: transform .25s, box-shadow .25s, border-color .25s; }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.feature-number { position: absolute; right: 24px; top: 18px; color: rgba(6,69,49,.18); font-family: var(--serif); font-size: 32px; }
.line-icon { display: grid; place-items: center; width: 78px; height: 78px; margin-bottom: 34px; color: var(--green-700); background: var(--green-100); border-radius: 50%; }
.line-icon svg { width: 46px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.feature-card h3 { margin: 0 0 14px; color: var(--green-950); font-family: var(--serif); font-size: 22px; letter-spacing: .05em; }
.feature-card p { margin: 0; color: var(--muted); font-size: 14px; }

.services { background: var(--ivory); }
.service-showcase { display: grid; grid-template-columns: 1.08fr .92fr; min-height: 620px; background: var(--white); box-shadow: var(--shadow); }
.service-photo { position: relative; min-height: 620px; margin: 0; overflow: hidden; }
.service-photo img { width: 100%; height: 100%; object-fit: cover; }
.service-photo figcaption, .finished-photo figcaption { position: absolute; right: 8px; bottom: 8px; padding: 4px 8px; color: rgba(255,255,255,.9); background: rgba(4,52,38,.7); font-size: 9px; }
.service-list { display: grid; align-content: center; padding: 24px 58px; }
.service-list article { display: grid; grid-template-columns: 45px 1fr; gap: 20px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.service-list article:last-child { border-bottom: 0; }
.service-list article > span { color: var(--lime); font-family: var(--serif); font-size: 16px; }
.service-list h3 { margin: 0 0 8px; color: var(--green-950); font-family: var(--serif); font-size: 21px; }
.service-list p { margin: 0; color: var(--muted); font-size: 13px; }

.works { background: var(--white); }
.text-link { color: var(--green-800); border-bottom: 1px solid; font-size: 14px; font-weight: 700; }
.text-link span { margin-left: 8px; }
.works-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 54px; align-items: stretch; }
.finished-photo { position: relative; min-height: 600px; margin: 0; overflow: hidden; }
.finished-photo img { width: 100%; height: 100%; object-fit: cover; }
.case-list { display: grid; gap: 14px; }
.case-card { padding: 28px 32px; background: #fbfaf6; border-left: 3px solid var(--green-700); }
.case-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 11px; }
.case-meta span { padding: 3px 10px; color: var(--green-800); background: var(--green-100); font-size: 10px; font-weight: 700; }
.case-meta time { color: var(--muted); font-family: var(--serif); font-size: 12px; }
.case-card h3 { margin: 0 0 8px; color: var(--green-950); font-family: var(--serif); font-size: 21px; }
.case-card p { margin: 0; color: var(--muted); font-size: 13px; }
.source-note { margin: 22px 0 0; color: #768079; font-size: 11px; text-align: right; }

.flow { color: var(--white); background: var(--green-950); }
.flow .section-kicker, .flow .section-heading h2, .flow .section-heading h2 span { color: var(--white); }
.flow .section-heading.centered > p:last-child { color: rgba(255,255,255,.7); }
.flow-list { display: grid; grid-template-columns: repeat(6, 1fr); margin: 0; padding: 0; list-style: none; counter-reset: flow; }
.flow-list li { position: relative; min-width: 0; padding: 0 22px; text-align: center; }
.flow-list li:not(:last-child)::after { content: ""; position: absolute; top: 47px; right: -16px; width: 32px; height: 1px; background: rgba(255,255,255,.3); }
.flow-list li > span { display: block; margin-bottom: 10px; color: var(--lime); font-family: var(--serif); font-size: 12px; }
.flow-list li > div { display: grid; place-items: center; width: 72px; height: 72px; margin: 0 auto 22px; color: var(--green-950); background: var(--ivory); border-radius: 50%; font-family: var(--serif); font-size: 21px; font-weight: 700; }
.flow-list h3 { margin: 0 0 10px; font-size: 15px; }
.flow-list p { margin: 0; color: rgba(255,255,255,.66); font-size: 11px; line-height: 1.8; }

.faq { background: #fbfaf6; }
.faq-grid { display: grid; grid-template-columns: .38fr .62fr; gap: 90px; }
.faq .section-heading > p:last-child { margin-top: 28px; color: var(--muted); font-size: 14px; }
.faq-item { border-top: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-item h3 { margin: 0; }
.faq-item button { width: 100%; padding: 26px 2px; display: flex; align-items: center; justify-content: space-between; gap: 20px; background: none; border: 0; cursor: pointer; text-align: left; font-weight: 600; }
.faq-item button span { display: flex; align-items: center; gap: 18px; }
.faq-item button b { color: var(--green-700); font-family: var(--serif); font-size: 20px; }
.faq-item button i { position: relative; width: 22px; height: 22px; flex: 0 0 auto; }
.faq-item button i::before, .faq-item button i::after { content: ""; position: absolute; left: 50%; top: 50%; width: 14px; height: 1px; background: var(--green-800); transform: translate(-50%, -50%); transition: transform .2s; }
.faq-item button i::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-item button[aria-expanded="true"] i::after { transform: translate(-50%, -50%) rotate(0); }
.faq-answer { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .3s ease; }
.faq-answer > div { overflow: hidden; }
.faq-answer p { margin: 0; padding: 0 50px 26px; color: var(--muted); font-size: 14px; }
.faq-item.is-open .faq-answer { grid-template-rows: 1fr; }

.company { padding-top: 0; background: #fbfaf6; }
.company-card { display: grid; grid-template-columns: .9fr 1.1fr; color: var(--white); background: var(--green-800); box-shadow: var(--shadow); }
.company-copy { padding: 68px; background: linear-gradient(140deg, rgba(255,255,255,.06), transparent 60%); }
.section-kicker.light { color: rgba(255,255,255,.74); }
.company-copy h2 { margin: 0; font-family: var(--serif); font-size: clamp(36px, 4vw, 52px); line-height: 1.5; }
.company-heading-line { display: inline-block; white-space: nowrap; }
.company-copy > p:not(.section-kicker) { color: rgba(255,255,255,.75); }
.button-light { margin-top: 22px; color: var(--green-950); background: var(--ivory); }
.button-light:hover { background: var(--white); }
.company-info { display: grid; align-content: center; padding: 58px 68px; background: rgba(4,52,38,.33); }
.company-info dl { margin: 0; }
.company-info dl > div { display: grid; grid-template-columns: 110px 1fr; padding: 17px 0; border-bottom: 1px solid rgba(255,255,255,.15); }
.company-info dt { color: rgba(255,255,255,.6); font-size: 12px; }
.company-info dd { margin: 0; font-size: 14px; font-weight: 500; }
.company-links { display: flex; flex-wrap: wrap; gap: 18px 28px; margin-top: 28px; }
.company-links a { border-bottom: 1px solid rgba(255,255,255,.45); font-size: 12px; }

.site-footer { padding: 66px 0 24px; color: rgba(255,255,255,.76); background: #062f23; }
.footer-main { display: grid; grid-template-columns: 1.2fr .8fr 1fr; gap: 48px; align-items: center; }
.footer-brand .brand-copy strong { color: var(--white); }
.footer-brand .brand-copy small { color: rgba(255,255,255,.55); }
.footer-address p { margin: 0; font-size: 12px; }
.footer-address a { color: var(--white); font-size: 18px; font-weight: 700; }
.footer-nav { display: grid; grid-template-columns: repeat(2, auto); gap: 8px 24px; justify-content: end; font-size: 12px; }
.footer-nav a:hover { color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 50px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12); font-size: 9px; letter-spacing: .05em; }
.footer-bottom p { margin: 0; }
.mobile-cta { display: none; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 1180px) {
  .header-inner { width: calc(100% - 28px); gap: 20px; }
  .brand-copy small { display: none; }
  .global-nav { gap: 15px; }
  .global-nav a { font-size: 11px; }
  .header-contact { min-width: 160px; }
  .header-contact span { font-size: 15px; }
  .flow-list li { padding-inline: 12px; }
}

@media (max-width: 960px) {
  .container { width: min(100% - 40px, 720px); }
  .section { padding: 86px 0; }
  .site-header, .site-header.is-scrolled { height: 72px; }
  .brand img, .site-header.is-scrolled .brand img { width: 52px; height: 52px; }
  .brand-copy strong { font-size: 17px; }
  .header-contact { display: none; }
  .menu-button { position: relative; z-index: 2; width: 44px; height: 44px; margin-left: auto; display: grid; align-content: center; gap: 6px; padding: 10px; background: transparent; border: 0; cursor: pointer; }
  .menu-button > span:not(.sr-only) { display: block; height: 2px; background: var(--green-900); transition: transform .2s, opacity .2s; }
  .menu-button[aria-expanded="true"] > span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .menu-button[aria-expanded="true"] > span:nth-child(2) { opacity: 0; }
  .menu-button[aria-expanded="true"] > span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
  .global-nav { position: fixed; inset: 72px 0 0; display: grid; align-content: center; gap: 0; padding: 30px 30px 90px; background: rgba(246,243,233,.98); opacity: 0; visibility: hidden; transform: translateY(-10px); transition: .25s; }
  .global-nav.is-open { opacity: 1; visibility: visible; transform: none; }
  .global-nav a { padding: 16px; border-bottom: 1px solid var(--line); font-family: var(--serif); font-size: 18px; text-align: center; }
  .global-nav a::after { display: none; }
  .hero { min-height: 760px; padding-top: 72px; }
  .hero-media, .hero-shade { inset: 72px 0 0; }
  .hero-media { background-position: 62% center; }
  .hero-shade { background: linear-gradient(90deg, rgba(250,249,244,.98), rgba(250,249,244,.82) 45%, rgba(250,249,244,.06) 78%); }
  .hero-content { padding-top: 100px; }
  .trust-row { bottom: 25px; }
  .intro-grid, .faq-grid { grid-template-columns: 1fr; gap: 40px; }
  .intro-copy { padding-left: 0; border: 0; }
  .feature-card { padding: 34px 24px; }
  .service-showcase { grid-template-columns: 1fr; }
  .service-photo { min-height: 440px; }
  .service-list { padding: 20px 42px; }
  .works-layout { grid-template-columns: 1fr; }
  .finished-photo { min-height: 420px; }
  .flow-list { grid-template-columns: repeat(3, 1fr); gap: 48px 0; }
  .flow-list li:nth-child(3)::after { display: none; }
  .company-card { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-nav { grid-column: 1 / -1; justify-content: start; grid-template-columns: repeat(5, auto); }
}

@media (max-width: 680px) {
  html { scroll-padding-top: 70px; }
  body { padding-bottom: 66px; }
  .container { width: calc(100% - 32px); }
  .section { padding: 70px 0; }
  .brand { gap: 9px; }
  .brand img, .site-header.is-scrolled .brand img { width: 45px; height: 45px; }
  .brand-copy strong { font-size: 15px; }
  .hero { min-height: 790px; }
  .hero-media { background-position: 70% center; }
  .hero-shade { background: linear-gradient(180deg, rgba(250,249,244,.97) 0%, rgba(250,249,244,.88) 42%, rgba(250,249,244,.1) 75%), linear-gradient(90deg, rgba(250,249,244,.7), transparent); }
  .hero-content { padding-top: 70px; }
  .eyebrow { margin-bottom: 14px; font-size: 10px; }
  .hero h1 { font-size: clamp(43px, 13vw, 60px); line-height: 1.35; letter-spacing: .03em; }
  .hero-lead { margin-top: 18px; font-size: 14px; line-height: 1.9; }
  .hero-actions { margin-top: 25px; flex-direction: column; align-items: flex-start; }
  .button { min-height: 54px; padding-inline: 22px; }
  .button-ghost { background: rgba(255,255,255,.8); }
  .trust-row { bottom: 18px; grid-template-columns: repeat(3, 1fr); width: calc(100% - 24px); padding: 8px 4px; }
  .trust-item { min-height: 100px; padding: 9px 4px; flex-direction: column; gap: 5px; border-right: 1px solid var(--line); text-align: center; }
  .trust-icon { width: 36px; height: 36px; font-size: 12px; }
  .trust-item strong { font-size: 10px; }
  .trust-item small { display: none; }
  .hero-caption { display: none; }
  .section-heading h2 { font-size: 33px; line-height: 1.55; }
  .section-heading-row { display: block; margin-bottom: 36px; }
  .section-heading-row > p { margin-top: 22px; }
  .feature-grid { grid-template-columns: 1fr; margin-top: 45px; }
  .feature-card { min-height: 0; }
  .service-photo { min-height: 320px; }
  .service-list { padding: 10px 22px; }
  .service-list article { grid-template-columns: 34px 1fr; gap: 12px; padding: 23px 0; }
  .service-list h3 { font-size: 18px; }
  .works-layout { gap: 26px; }
  .finished-photo { min-height: 320px; }
  .case-card { padding: 24px 22px; }
  .source-note { text-align: left; }
  .flow-list { grid-template-columns: repeat(2, 1fr); gap: 44px 0; }
  .flow-list li:nth-child(3)::after { display: block; }
  .flow-list li:nth-child(2n)::after { display: none; }
  .flow-list li { padding-inline: 10px; }
  .flow-list li > div { width: 62px; height: 62px; }
  .faq-grid { gap: 30px; }
  .faq-item button { font-size: 14px; }
  .faq-answer p { padding-left: 38px; padding-right: 8px; }
  .company { padding-top: 0; }
  .company-card { width: 100%; }
  .company-copy, .company-info { padding: 44px 28px; }
  .company-copy h2 { font-size: clamp(33px, 8.5vw, 42px); }
  .company-info dl > div { grid-template-columns: 90px 1fr; }
  .site-footer { padding-top: 48px; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-nav { grid-column: auto; grid-template-columns: repeat(2, auto); justify-content: start; }
  .footer-bottom { display: block; }
  .footer-bottom p + p { margin-top: 8px; }
  .mobile-cta { position: fixed; z-index: 90; inset: auto 0 0; height: 66px; display: grid; grid-template-columns: 1.25fr .75fr; color: var(--white); box-shadow: 0 -8px 24px rgba(4,52,38,.16); }
  .mobile-cta a { display: grid; place-items: center; align-content: center; background: var(--green-800); font-size: 12px; font-weight: 700; line-height: 1.3; }
  .mobile-cta a:first-child { background: var(--green-950); }
  .mobile-cta span { font-size: 9px; font-weight: 500; }
  .mobile-cta strong { font-size: 15px; letter-spacing: .04em; }
}