:root {
  --bg: #f2fbfa;
  --paper: #ffffff;
  --ink: #20302f;
  --sub: #60716f;
  --line: #d3ecea;
  --accent: #27cbd0;
  --accent-dark: #0e6870;
  --accent-deep: #083f45;
  --leaf: #32f137;
  --soft: #e3f8f7;
  --shadow: 0 22px 60px rgba(8, 63, 69, .13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Yu Gothic UI", Meiryo, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.85;
}

a { color: inherit; }
.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  overflow: hidden;
  background: transparent;
  box-shadow: none;
}
.brand-mark img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}
.brand-text { display: grid; line-height: 1.25; }
.brand-kana { font-size: 20px; font-weight: 700; letter-spacing: .08em; }
.brand-company { font-size: 12px; color: var(--sub); }
.global-nav {
  display: flex;
  gap: 18px;
  font-size: 14px;
  font-weight: 700;
}
.global-nav a {
  text-decoration: none;
  color: var(--sub);
  white-space: nowrap;
}
.global-nav a:hover { color: var(--accent-dark); }

.hero {
  position: relative;
  overflow: hidden;
  padding: 86px 0 72px;
  min-height: 680px;
  background: var(--bg);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(90deg, rgba(242,251,250,.94) 0%, rgba(242,251,250,.80) 48%, rgba(242,251,250,.48) 100%),
    linear-gradient(180deg, rgba(39,203,208,.18), rgba(8,63,69,.20));
  pointer-events: none;
}
.hero-slideshow {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: var(--accent-dark);
}
.hero-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 48%;
  opacity: 0;
  transform: scale(1.035);
  transition: opacity 1.2s ease, transform 7s ease;
}
.hero-slide.is-active {
  opacity: 1;
  transform: scale(1);
}

.hero-slide:nth-child(1) { object-position: center center; }
.hero-slide:nth-child(2) { object-position: center center; }
.hero-slide:nth-child(3) { object-position: center center; }
.hero-slide:nth-child(4) { object-position: center center; }
.hero-slide:nth-child(5) { object-position: center top; }

.hero-collage {
  position: absolute;
  inset: 0;
  opacity: .26;
  filter: blur(.2px) saturate(.75);
  pointer-events: none;
}
.collage-item {
  position: absolute;
  display: block;
  border-radius: 28px;
  box-shadow: 0 20px 60px rgba(26, 42, 35, .18);
  overflow: hidden;
}
.collage-item::before,
.collage-item::after {
  content: "";
  position: absolute;
  inset: 0;
}
.collage-renovation {
  width: 34vw;
  height: 240px;
  left: 2vw;
  top: 32px;
  transform: rotate(-6deg);
  background:
    linear-gradient(0deg, rgba(34,73,59,.22), rgba(34,73,59,.22)),
    repeating-linear-gradient(90deg, #d8d1c3 0 28px, #f2eee5 28px 58px),
    linear-gradient(135deg, #8f9f92, #f1ede4);
}
.collage-renovation::before {
  background:
    linear-gradient(90deg, transparent 0 18%, rgba(255,255,255,.55) 18% 21%, transparent 21% 48%, rgba(255,255,255,.5) 48% 51%, transparent 51%),
    linear-gradient(0deg, transparent 0 62%, rgba(82,92,84,.55) 62% 65%, transparent 65%);
}
.collage-house {
  width: 30vw;
  height: 300px;
  right: 3vw;
  top: 72px;
  transform: rotate(5deg);
  background:
    linear-gradient(0deg, rgba(34,73,59,.18), rgba(34,73,59,.18)),
    linear-gradient(145deg, #e6e1d6 0 44%, #9a8f80 44% 48%, #f8f5ec 48% 100%);
}
.collage-house::before {
  clip-path: polygon(8% 56%, 50% 24%, 92% 56%, 84% 56%, 84% 90%, 18% 90%, 18% 56%);
  background: rgba(255,255,255,.72);
  inset: 20px;
}
.collage-house::after {
  background:
    linear-gradient(90deg, transparent 42%, rgba(55,113,93,.5) 42% 48%, transparent 48%),
    linear-gradient(0deg, transparent 62%, rgba(55,113,93,.38) 62% 67%, transparent 67%);
  inset: 58px;
}
.collage-office {
  width: 28vw;
  height: 190px;
  left: 35vw;
  bottom: -40px;
  transform: rotate(2deg);
  background:
    linear-gradient(0deg, rgba(34,73,59,.2), rgba(34,73,59,.2)),
    repeating-linear-gradient(90deg, #ece7dc 0 42px, #cfc8bb 42px 46px),
    linear-gradient(180deg, #f5f0e7, #b9b0a2);
}
.collage-office::before {
  background:
    repeating-linear-gradient(0deg, transparent 0 26px, rgba(55,113,93,.28) 26px 30px),
    repeating-linear-gradient(90deg, transparent 0 48px, rgba(55,113,93,.2) 48px 52px);
}
.collage-plan {
  width: 22vw;
  height: 220px;
  right: 22vw;
  bottom: 28px;
  transform: rotate(-8deg);
  background:
    linear-gradient(0deg, rgba(34,73,59,.16), rgba(34,73,59,.16)),
    repeating-linear-gradient(0deg, #f7f3ea 0 18px, #d7d1c7 18px 19px),
    repeating-linear-gradient(90deg, transparent 0 18px, #d7d1c7 18px 19px);
}
.collage-plan::before {
  background:
    linear-gradient(90deg, transparent 0 20%, #6b756c 20% 22%, transparent 22% 58%, #6b756c 58% 60%, transparent 60%),
    linear-gradient(0deg, transparent 0 28%, #6b756c 28% 30%, transparent 30% 68%, #6b756c 68% 70%, transparent 70%);
  inset: 24px;
  opacity: .75;
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 42px;
  align-items: center;
}
.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-dark);
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-size: 13px;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 24px;
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1.18;
  letter-spacing: .03em;
}
.lead {
  max-width: 680px;
  font-size: 18px;
  color: #314746;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
  align-items: center;
}
.btn,
.instagram-link {
  gap: 8px;
  color: var(--accent-deep);
  background: rgba(255,255,255,.78);
  border-color: rgba(14,104,112,.24);
}
.instagram-icon {
  width: 22px;
  height: 22px;
  display: inline-block;
}
.instagram-icon img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.hero-card {
  background: rgba(255,255,255,.90);
  border: 1px solid rgba(14,104,112,.14);
  border-radius: 30px;
  padding: 34px;
  box-shadow: var(--shadow);
}
.card-title {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 18px;
}
.hero-card ul,
.license-box ul {
  padding-left: 1.2em;
  margin: 0;
}
.hero-card li { margin: 8px 0; }

.section { padding: 82px 0; }
.section.muted { background: #f8fffe; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}
.section-heading.compact { margin-bottom: 18px; }
h2 {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.3;
  margin-bottom: 14px;
}
.service-grid,
.license-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.service-card,
.license-box {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 24px;
  box-shadow: 0 12px 34px rgba(8, 63, 69, .05);
}
.service-card h3,
.license-box h3 {
  font-size: 20px;
  margin-bottom: 10px;
}
.service-card p { color: var(--sub); margin-bottom: 0; }
.profile-lead { color: var(--sub); }
.info-list {
  margin: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  overflow: hidden;
}
.info-list div {
  display: grid;
  grid-template-columns: 190px 1fr;
  border-bottom: 1px solid var(--line);
}
.info-list div:last-child { border-bottom: 0; }
.info-list dt,
.info-list dd {
  margin: 0;
  padding: 18px 20px;
}
.info-list dt {
  background: #e6f8f7;
  font-weight: 800;
}
.info-list dd { background: #fff; }

.representative-block dd {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 22px;
  align-items: center;
}
.representative-profile {
  margin: 0;
}
.representative-profile img {
  display: block;
  width: 180px;
  height: 180px;
  object-fit: cover;
  border-radius: 26px;
  border: 1px solid var(--line);
  box-shadow: 0 16px 36px rgba(32, 45, 38, .12);
}
.representative-profile figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--sub);
  font-weight: 800;
  text-align: center;
}
.representative-text {
  margin: 0;
  color: #314746;
}

.plain-list {
  margin: 0;
  padding-left: 1.2em;
}
.plain-list li { margin: 4px 0; }
.company-list dd p { margin-bottom: 14px; }
.location-block dd { padding: 18px 20px 22px; }
.google-map {
  display: block;
  width: 100%;
  height: 300px;
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 18px;
}
.license-grid { grid-template-columns: repeat(2, 1fr); }
.license-box { background: #fff; }
.license-box li { margin: 8px 0; }
.contact-section { padding-bottom: 56px; }
.contact-panel {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 40px;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent-deep));
  color: #fff;
  border-radius: 34px;
  padding: 44px;
  box-shadow: var(--shadow);
}
.contact-panel .eyebrow { color: #baf7f4; }
.contact-panel p { color: rgba(255,255,255,.84); }
.business-hours {
  margin-bottom: 0;
  font-weight: 800;
}
.contact-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.contact-item {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 18px;
  padding: 18px;
}
.contact-item span {
  display: block;
  color: rgba(255,255,255,.7);
  font-size: 13px;
}
.contact-item a,
.contact-item .email-text {
  display: block;
  margin: 4px 0;
  font-size: clamp(16px, 1.25vw, 20px);
  font-weight: 800;
  text-decoration: none;
  overflow-wrap: anywhere;
}
.contact-item .email-text {
  cursor: text;
  user-select: text;
}
.privacy-section {
  padding-top: 34px;
}
.privacy-box {
  background: rgba(255,255,255,.68);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 30px;
}
.privacy-box p {
  color: var(--sub);
  margin-bottom: 12px;
}
.privacy-box p:last-child { margin-bottom: 0; }
.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  background: var(--paper);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--sub);
}
.footer-inner p { margin: 0; }

@media (max-width: 980px) {
  .contact-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .header-inner { align-items: flex-start; flex-direction: column; padding: 16px 0; }
  .global-nav { flex-wrap: wrap; gap: 10px 16px; }
  .hero { padding-top: 56px; }
  .hero-grid,
  .contact-panel { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .collage-renovation { width: 70vw; left: -24vw; }
  .collage-house { width: 58vw; right: -20vw; }
  .collage-office { width: 62vw; left: 20vw; }
  .collage-plan { width: 48vw; right: 4vw; }
  .google-map { height: 260px; }
}
@media (max-width: 640px) {
  .hero {
    min-height: auto;
    padding: 48px 0 54px;
  }
  .hero::after {
    background:
      linear-gradient(180deg, rgba(242,251,250,.94) 0%, rgba(242,251,250,.86) 54%, rgba(242,251,250,.72) 100%),
      linear-gradient(180deg, rgba(39,203,208,.16), rgba(8,63,69,.22));
  }
  .hero-slide {
    object-position: center top;
  }
  .container { width: min(100% - 28px, 1120px); }
  .brand-kana { font-size: 18px; }
  .service-grid,
  .license-grid,
  .contact-list { grid-template-columns: 1fr; }
  .info-list div { grid-template-columns: 1fr; }
  .info-list dt { padding-bottom: 6px; }
  .info-list dd { padding-top: 6px; }
  .representative-block dd { grid-template-columns: 1fr; }
  .representative-profile img { width: min(100%, 240px); height: auto; aspect-ratio: 1 / 1; }
  .representative-profile figcaption { text-align: left; }
  .contact-panel { padding: 28px 20px; border-radius: 24px; }
  .privacy-box { padding: 24px 18px; }
}


@media (prefers-reduced-motion: reduce) {
  .hero-slide {
    transition: none;
    transform: none;
  }
}



.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
  border: 1px solid transparent;
  box-shadow: 0 10px 26px rgba(8, 63, 69, .10);
}

.hero-actions .btn.primary {
  color: #fff;
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.hero-actions .btn.secondary {
  color: var(--accent-deep);
  background: rgba(255, 255, 255, .92);
  border-color: rgba(14, 104, 112, .26);
}

.hero-actions .btn:hover {
  transform: translateY(-1px);
}

.hero-actions .instagram-link {
  color: var(--accent-deep);
}

.hero-actions .instagram-icon {
  width: 22px;
  height: 22px;
  display: inline-block;
}

.hero-actions .instagram-icon img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}


.external-link {
  display: inline-block;
  margin-top: 6px;
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.6;
  text-decoration: underline;
  text-underline-offset: .18em;
}
.external-link:hover {
  color: var(--accent-deep);
}


.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  color: #fff !important;
  background: var(--accent-dark);
  border: 1px solid var(--accent-dark);
  border-radius: 999px;
  box-shadow: 0 8px 20px rgba(8, 63, 69, .12);
}
.nav-cta:hover {
  color: #fff !important;
  background: var(--accent-deep);
  border-color: var(--accent-deep);
  transform: translateY(-1px);
}

@media (max-width: 640px) {
  .nav-cta {
    min-height: 46px;
    padding: 0 18px;
  }
}


/* Instagram showcase */
.instagram-showcase {
      padding: 40px 0;
      background: #fff;
    }
    .instagram-showcase-inner {
      display: grid;
      grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
      gap: 34px;
      align-items: center;
      padding: 38px 44px;
      border: 1px solid rgba(14, 104, 112, .12);
      border-radius: 28px;
      background:
        radial-gradient(circle at 100% 0%, rgba(39, 203, 208, .12), transparent 34%),
        linear-gradient(135deg, rgba(227, 248, 247, .86), rgba(255, 255, 255, .94));
      box-shadow: 0 18px 52px rgba(8, 63, 69, .08);
    }
    .instagram-showcase-copy h2 {
      margin: 0;
      color: var(--accent-deep, #083f45);
      font-size: clamp(24px, 2.2vw, 34px);
      line-height: 1.35;
      letter-spacing: .03em;
    }
    .instagram-showcase-copy p {
      margin: 16px 0 24px;
      color: var(--ink, #20302f);
      font-size: 16px;
      line-height: 1.9;
    }
    .instagram-showcase-button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      min-height: 52px;
      padding: 0 28px;
      border-radius: 999px;
      color: #fff;
      background: linear-gradient(135deg, #12aeb7, #0e6870);
      font-weight: 800;
      text-decoration: none;
      box-shadow: 0 12px 28px rgba(8, 63, 69, .16);
    }
    .instagram-showcase-button img {
      width: 26px;
      height: 26px;
      display: block;
    }
    .instagram-showcase-images {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 16px;
    }
    .instagram-showcase-images img {
      display: block;
      width: 100%;
      aspect-ratio: 4 / 3;
      height: auto;
      object-fit: cover;
      border-radius: 14px;
      box-shadow: 0 10px 24px rgba(8, 63, 69, .10);
    }
    @media (max-width: 800px) {
      .instagram-showcase {
        padding: 28px 0;
      }
      .instagram-showcase-inner {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 28px 24px;
        border-radius: 22px;
      }
      .instagram-showcase-copy h2 {
        font-size: 24px;
      }
      .instagram-showcase-button {
        width: 100%;
      }
      .instagram-showcase-images {
        gap: 10px;
      }
    }
    @media (max-width: 430px) {
      .instagram-showcase-images {
        grid-template-columns: repeat(3, 1fr);
      }
      .instagram-showcase-images img {
        border-radius: 10px;
      }
    }





/* v20: smartphone overflow fix */
html,
body {
  max-width: 100%;
  overflow-x: hidden;
}

img,
iframe {
  max-width: 100%;
}

.instagram-showcase-inner,
.instagram-showcase-copy,
.instagram-showcase-images {
  min-width: 0;
}

.instagram-showcase-copy h2,
.instagram-showcase-copy p {
  max-width: 100%;
}

@media (max-width: 800px) {
  .instagram-showcase {
    overflow: hidden;
  }

  .instagram-showcase-inner {
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    box-sizing: border-box;
  }

  .instagram-showcase-copy {
    min-width: 0;
  }

  .instagram-showcase-copy h2 {
    word-break: normal;
    overflow-wrap: break-word;
  }

  .instagram-showcase-copy p {
    word-break: normal;
    overflow-wrap: break-word;
  }

  .instagram-showcase-button {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding-left: 18px;
    padding-right: 18px;
  }

  .instagram-showcase-images {
    width: 100%;
    max-width: 100%;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .instagram-showcase-images img {
    width: 100%;
    min-width: 0;
  }
}

@media (max-width: 430px) {
  .instagram-showcase-copy h2 {
    font-size: clamp(23px, 6.6vw, 27px);
    line-height: 1.45;
    letter-spacing: .005em;
    word-break: normal;
    overflow-wrap: break-word;
  }

  .instagram-showcase-copy p {
    font-size: 15px;
    line-height: 1.85;
    word-break: normal;
    overflow-wrap: break-word;
  }

  .instagram-showcase-button {
    min-height: 50px;
    font-size: 16px;
  }
}


/* v21: desktop navigation vertical alignment */
@media (min-width: 981px) {
  .header-inner {
    align-items: center;
  }

  .global-nav,
  .nav {
    display: flex;
    align-items: center;
  }

  .global-nav a,
  .nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    line-height: 1;
  }

  .global-nav a:not(.nav-cta),
  .nav a:not(.nav-cta) {
    padding-top: 1px;
  }

  .global-nav .nav-cta,
  .nav .nav-cta {
    min-height: 42px;
  }
}


/* v22: mobile navigation vertical alignment */
@media (max-width: 980px) {
  .global-nav,
  .nav {
    align-items: center;
  }

  .global-nav a,
  .nav a,
  .global-nav a:not(.nav-cta),
  .nav a:not(.nav-cta) {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    line-height: 1;
    padding-top: 0;
    padding-bottom: 0;
  }

  .global-nav .nav-cta,
  .nav .nav-cta {
    min-height: 42px;
    align-items: center;
  }
}

@media (max-width: 640px) {
  .global-nav,
  .nav {
    align-items: center;
  }

  .global-nav a,
  .nav a,
  .global-nav a:not(.nav-cta),
  .nav a:not(.nav-cta) {
    min-height: 40px;
    line-height: 1;
    padding-top: 0;
    padding-bottom: 0;
  }

  .global-nav .nav-cta,
  .nav .nav-cta {
    min-height: 40px;
  }
}

@media (max-width: 375px) {
  .global-nav a,
  .nav a,
  .global-nav a:not(.nav-cta),
  .nav a:not(.nav-cta),
  .global-nav .nav-cta,
  .nav .nav-cta {
    min-height: 38px;
    line-height: 1;
  }
}

/* v25: mobile nav visual alignment corrected */
@media (max-width: 640px) {
  .global-nav a:not(.nav-cta),
  .nav a:not(.nav-cta) {
    position: relative;
    top: 3px;
  }

  .global-nav .nav-cta,
  .nav .nav-cta {
    position: relative;
    top: 0;
  }
}

@media (max-width: 375px) {
  .global-nav a:not(.nav-cta),
  .nav a:not(.nav-cta) {
    top: 2px;
  }
}