/* ===== Natural Theme ===== */
/* Palette: #F5F2EC bg / #4A5D3A heading / #8B9E7A accent / #E8DDC8 sand / #3D3D3D body */

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans JP', sans-serif;
  color: #3D3D3D;
  background: #F5F2EC;
  line-height: 1.9;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: #8B9E7A; text-decoration: none; transition: opacity .2s; }
a:hover { opacity: .7; }

h1, h2, h3, h4 {
  font-family: 'Noto Serif JP', serif;
  font-weight: 600;
  color: #4A5D3A;
  letter-spacing: 0.02em;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}
.container.narrow { max-width: 780px; }

/* ===== Header ===== */
.site-header {
  background: rgba(245,242,236,0.96);
  border-bottom: 1px solid #E8DDC8;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(6px);
}
.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  flex-wrap: wrap;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Noto Serif JP', serif;
  font-size: 1.2rem;
  font-weight: 600;
  color: #4A5D3A;
  letter-spacing: 0.06em;
}
.logo-leaf {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}
.nav {
  display: flex;
  gap: 26px;
}
.nav a {
  color: #4A5D3A;
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 4px 0;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: #8B9E7A;
  transition: width .25s;
}
.nav a:hover::after { width: 100%; }

/* ===== Hero (hybrid: image + text side by side) ===== */
.hero {
  padding: 64px 0 80px;
  background: linear-gradient(180deg, #F5F2EC 0%, #EFEAE0 100%);
  position: relative;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero-text { padding: 12px 0; }
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: #8B9E7A;
  letter-spacing: 0.15em;
  margin-bottom: 18px;
  font-weight: 500;
}
.leaf-icon {
  width: 20px;
  height: 20px;
}
.hero-catch {
  font-size: 2.4rem;
  line-height: 1.5;
  margin-bottom: 22px;
  color: #4A5D3A;
}
.hero-sub {
  font-size: 1.05rem;
  margin-bottom: 32px;
  color: #3D3D3D;
  max-width: 540px;
}
.hero-visual img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  border-radius: 24px;
  box-shadow: 0 12px 40px rgba(74,93,58,0.18);
}

/* ===== Page Hero ===== */
.page-hero {
  padding: 56px 0 64px;
  background: linear-gradient(180deg, #F5F2EC 0%, #EFEAE0 100%);
}
.page-hero.sand-hero {
  background: linear-gradient(180deg, #E8DDC8 0%, #F5F2EC 100%);
}
.page-hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.page-hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  color: #8B9E7A;
  letter-spacing: 0.2em;
  margin-bottom: 12px;
  font-weight: 500;
}
.page-hero h1 {
  font-size: 2rem;
  color: #4A5D3A;
}
.page-hero-image img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: 0 8px 28px rgba(74,93,58,0.15);
}
.page-hero-deco {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 220px;
}
.hero-leaf-deco {
  width: 100%;
  max-width: 280px;
  height: auto;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 14px 38px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 1rem;
  letter-spacing: 0.05em;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all .25s;
}
.btn-primary {
  background: #8B9E7A;
  color: #fff;
}
.btn-primary:hover {
  background: #4A5D3A;
  opacity: 1;
}
.btn-outline {
  background: transparent;
  color: #4A5D3A;
  border-color: #8B9E7A;
}
.btn-outline:hover {
  background: #8B9E7A;
  color: #fff;
  opacity: 1;
}

/* ===== Sections ===== */
section { padding: 84px 0; }
.section-title {
  font-size: 1.85rem;
  text-align: center;
  margin-bottom: 16px;
  font-weight: 600;
  color: #4A5D3A;
}
.section-lead {
  text-align: center;
  font-size: 1rem;
  color: #6B7A5E;
  margin-bottom: 56px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.lead {
  font-size: 1.05rem;
  line-height: 2.1;
  text-align: center;
  color: #3D3D3D;
}

/* ===== Sand band (gradient rhythm) ===== */
.sand-band {
  background: linear-gradient(180deg, rgba(232,221,200,0) 0%, #E8DDC8 50%, rgba(232,221,200,0) 100%);
  padding: 64px 0;
}
.sand-band.soft {
  background: linear-gradient(180deg, #F5F2EC 0%, #EFE7D4 50%, #F5F2EC 100%);
  padding: 84px 0;
}
.cta-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.cta-inner p {
  font-size: 1.1rem;
  font-weight: 500;
  color: #4A5D3A;
  font-family: 'Noto Serif JP', serif;
}

/* ===== Pillars (zigzag layout) ===== */
.pillar-zigzag {
  display: flex;
  flex-direction: column;
  gap: 64px;
}
.pillar-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.pillar-row.row-text-right .pillar-text { order: 2; }
.pillar-row.row-text-right .pillar-image { order: 1; }
.pillar-num {
  display: inline-block;
  font-family: 'Noto Serif JP', serif;
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  color: #8B9E7A;
  margin-bottom: 14px;
}
.pillar-text h3 {
  font-size: 1.45rem;
  margin-bottom: 18px;
  color: #4A5D3A;
}
.pillar-text p {
  font-size: 1rem;
  color: #3D3D3D;
  line-height: 2;
}
.pillar-image img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: 0 10px 32px rgba(74,93,58,0.15);
}

/* ===== Material cards (philosophy) ===== */
.material-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.material-card {
  background: #fff;
  padding: 36px 28px;
  border-radius: 16px;
  text-align: center;
  box-shadow: 0 4px 18px rgba(74,93,58,0.08);
}
.material-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 18px;
}
.material-card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: #4A5D3A;
}
.material-card p {
  font-size: 0.95rem;
  color: #3D3D3D;
  line-height: 1.9;
}

/* ===== Philosophy points ===== */
.point-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.point-item {
  background: #fff;
  padding: 32px 36px;
  border-radius: 16px;
  border-left: 4px solid #8B9E7A;
  box-shadow: 0 4px 18px rgba(74,93,58,0.06);
}
.point-item h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  display: flex;
  align-items: baseline;
  gap: 18px;
  color: #4A5D3A;
}
.point-num {
  color: #8B9E7A;
  font-family: 'Noto Serif JP', serif;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

/* ===== Works grid (detail-focused, large thumbs) ===== */
.works-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 36px;
}
.work-card {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 18px rgba(74,93,58,0.08);
  transition: transform .25s, box-shadow .25s;
}
.work-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 32px rgba(74,93,58,0.16);
}
.work-thumb-wrap {
  width: 100%;
  height: 320px;
  overflow: hidden;
}
.work-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s;
}
.work-card:hover .work-thumb {
  transform: scale(1.04);
}
.work-body { padding: 26px 28px 30px; }
.work-index {
  display: inline-block;
  font-family: 'Noto Serif JP', serif;
  font-size: 0.78rem;
  letter-spacing: 0.25em;
  color: #8B9E7A;
  margin-bottom: 10px;
}
.work-body h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: #4A5D3A;
}
.work-body p {
  font-size: 0.95rem;
  color: #3D3D3D;
}

/* ===== About ===== */
.info-list {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px 28px;
  background: #fff;
  padding: 36px 40px;
  border-radius: 16px;
  box-shadow: 0 4px 18px rgba(74,93,58,0.06);
}
.info-list dt {
  font-weight: 700;
  color: #4A5D3A;
  border-right: 1px solid #E8DDC8;
  padding-right: 16px;
  font-family: 'Noto Serif JP', serif;
}
.info-list dd {
  color: #3D3D3D;
}

/* ===== Contact ===== */
.contact-tel {
  text-align: center;
  padding: 48px 0 16px;
}
.tel-label {
  font-size: 1rem;
  margin-bottom: 8px;
  color: #6B7A5E;
}
.tel-number {
  font-size: 2.6rem;
  font-weight: 600;
  color: #4A5D3A;
  font-family: 'Noto Serif JP', serif;
  letter-spacing: 0.06em;
}
.contact-form {
  background: #fff;
  padding: 44px;
  border-radius: 20px;
  box-shadow: 0 6px 22px rgba(74,93,58,0.08);
}
.form-row {
  margin-bottom: 24px;
}
.form-row label {
  display: block;
  font-weight: 500;
  margin-bottom: 8px;
  color: #4A5D3A;
}
.req {
  display: inline-block;
  background: #A5523F;
  color: #fff;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 999px;
  margin-left: 6px;
  font-weight: 400;
  vertical-align: middle;
}
.form-row input,
.form-row textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid #D8CCB3;
  border-radius: 10px;
  font-family: inherit;
  font-size: 1rem;
  background: #FAF7F0;
  color: #3D3D3D;
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: #8B9E7A;
  background: #fff;
}
.form-submit { text-align: center; margin-top: 16px; }

/* ===== Footer ===== */
.site-footer {
  background: #4A5D3A;
  color: #E8DDC8;
  padding: 52px 0 28px;
  font-size: 0.9rem;
  line-height: 2;
}
.site-footer .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.footer-name {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 8px;
  font-weight: 600;
}
.footer-disclaimer p {
  font-size: 0.82rem;
  color: #C7BFA8;
}
.footer-credits {
  grid-column: 1 / -1;
  border-top: 1px solid #6B7A5E;
  padding-top: 18px;
  margin-top: 8px;
  font-size: 0.78rem;
  color: #B7AE93;
}
.footer-credits a { color: #E8DDC8; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    gap: 12px;
    padding: 14px 20px;
  }
  .nav {
    gap: 14px;
    flex-wrap: wrap;
    justify-content: center;
  }
  .nav a { font-size: 0.88rem; }

  section { padding: 56px 0; }
  .section-title { font-size: 1.45rem; }
  .section-lead { margin-bottom: 36px; font-size: 0.95rem; }

  .hero { padding: 40px 0 56px; }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero-catch { font-size: 1.7rem; }
  .hero-sub { font-size: 0.98rem; }
  .hero-visual img { height: 280px; border-radius: 16px; }

  .page-hero { padding: 40px 0 48px; }
  .page-hero-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .page-hero h1 { font-size: 1.6rem; }
  .page-hero-image img { height: 220px; border-radius: 16px; }
  .page-hero-deco { min-height: 140px; }

  .pillar-zigzag { gap: 44px; }
  .pillar-row {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .pillar-row.row-text-right .pillar-text { order: 2; }
  .pillar-row.row-text-right .pillar-image { order: 1; }
  .pillar-row .pillar-image { order: 1; }
  .pillar-row .pillar-text { order: 2; }
  .pillar-text h3 { font-size: 1.25rem; }
  .pillar-image img { height: 240px; border-radius: 16px; }

  .material-list { grid-template-columns: 1fr; }
  .works-grid { grid-template-columns: 1fr; gap: 24px; }
  .work-thumb-wrap { height: 240px; }

  .cta-inner { flex-direction: column; text-align: center; }
  .info-list {
    grid-template-columns: 1fr;
    padding: 24px;
  }
  .info-list dt {
    border-right: none;
    padding-right: 0;
    padding-bottom: 4px;
  }
  .tel-number { font-size: 1.8rem; }
  .contact-form { padding: 24px; }

  .site-footer .container { grid-template-columns: 1fr; }
}