/* =========================================
   CSS Variables & Reset
   ========================================= */
:root {
  --white: #FFFFFF;
  --beige-primary: #F5F0E8;
  --beige-light: #FAFAF7;
  --khaki: #8B8B6B;
  --khaki-dark: #6B6B52;
  --khaki-light: #A9A98A;
  --gray-dark: #2C2C2C;
  --gray-text: #333333;
  --gray-muted: #808080;
  --gray-light: #CCCCCC;
  --gray-border: #DDDDDD;
  --gold: #B8976A;
  --gold-light: #D4B896;
  --text-dark: #2C2C2C;
  --text-body: #333333;
  --text-muted: #808080;
  --border: #E0DDD7;
  --shadow-sm: 0 1px 4px rgba(44,44,44,0.06);
  --shadow-md: 0 6px 32px rgba(44,44,44,0.10);
  --transition: 0.35s ease;
  --max-width: 1140px;

  /* Legacy aliases – keep old class names working */
  --dark-brown: var(--khaki);
  --brown-mid: var(--khaki-light);
  --beige: var(--beige-primary);
  --off-white: var(--beige-light);
  --bg-gray: var(--beige-primary);
  --bg-light: var(--beige-light);
  --primary: var(--khaki);
  --navy: var(--khaki);
  --navy-dark: var(--khaki-dark);
  --navy-light: var(--khaki-light);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Noto Serif JP', 'Hiragino Mincho ProN', 'Yu Mincho', 'Times New Roman', serif;
  color: var(--text-body);
  background: var(--beige-primary);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* =========================================
   Layout Utilities
   ========================================= */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 48px;
}

.section { padding: 120px 0; background: var(--beige-primary); }
.section--gray { background: var(--white); color: var(--text-body); }
.section--light { background: var(--white); color: var(--text-body); }

.section--light .section-tag {
  color: var(--khaki);
}

.section--light .section-title {
  color: var(--text-dark);
}

.section--light .section-lead {
  color: var(--text-muted);
}

.section--light .feature-text {
  color: var(--text-body);
}

.section-header {
  text-align: center;
  margin-bottom: 80px;
}

.section-tag {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(1.5rem, 2.8vw, 2.2rem);
  font-weight: 400;
  color: var(--text-dark);
  line-height: 1.5;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.section-lead {
  font-size: 0.9rem;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto;
  line-height: 2;
}

/* =========================================
   Buttons
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 36px;
  font-family: inherit;
  font-weight: 400;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
  border-radius: 0;
}

.btn-primary {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}
.btn-primary:hover {
  background: var(--beige-primary);
  color: var(--navy);
  border-color: var(--beige-primary);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-outline:hover {
  background: var(--navy);
  color: var(--white);
}

.btn-white {
  background: var(--white);
  color: var(--navy);
  border-color: var(--white);
}
.btn-white:hover {
  background: var(--beige-light);
  border-color: var(--beige-light);
  color: var(--navy);
}

/* =========================================
   Navigation
   ========================================= */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--beige-primary);
  backdrop-filter: none;
  border-bottom: 1px solid var(--border);
  transition: border-color var(--transition);
  box-shadow: var(--shadow-sm);
}
.nav.scrolled { border-bottom-color: var(--border); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 400;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  color: var(--text-dark);
  transition: all var(--transition);
}

.nav-logo:hover {
  opacity: 0.8;
}

@media (max-width: 900px) {
  .nav-logo span {
    display: none;
  }
  .nav-logo {
    gap: 0;
  }
}

.nav-logo-img {
  height: 48px;
  width: auto;
  max-width: 160px;
  display: block;
  object-fit: contain;
  object-position: left center;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav-link {
  padding: 8px 18px;
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 18px;
  right: 18px;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.nav-link:hover,
.nav-link.active { color: var(--text-dark); }
.nav-link:hover::after,
.nav-link.active::after { transform: scaleX(1); }

.nav-cta {
  background: transparent !important;
  color: var(--dark-brown) !important;
  padding: 8px 20px !important;
  border: 1px solid var(--dark-brown);
  font-size: 0.78rem !important;
  letter-spacing: 0.1em;
  margin-left: 12px;
  transition: all var(--transition);
  border-radius: 0;
}
.nav-cta:hover {
  background: var(--dark-brown) !important;
  color: var(--off-white) !important;
}
.nav-cta::after { display: none !important; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--text-dark);
  transition: all var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================
   Hero
   ========================================= */
.hero {
  min-height: 100vh;
  background: var(--beige-primary);
  color: var(--text-body);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 72px;
}

.hero::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 40%;
  background: transparent;
  pointer-events: none;
}

.hero-blob { display: none; }

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 620px;
  padding: 80px 0;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid var(--gray-border);
  color: var(--text-muted);
  padding: 6px 18px;
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  margin: 0 auto 40px;
}

.hero-badge span { color: var(--khaki); }

.hero-title {
  font-size: clamp(1.2rem, 2.8vw, 2.2rem);
  font-weight: 400;
  color: var(--text-dark);
  line-height: 1.5;
  margin-bottom: 28px;
  letter-spacing: 0.03em;
  white-space: nowrap;
  overflow: visible;
}

.hero-title em {
  font-style: italic;
  color: var(--khaki);
}

.hero-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 44px;
  line-height: 2.1;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin: 72px auto 0;
  flex-wrap: wrap;
  padding-top: 40px;
  border-top: 1px solid var(--gray-border);
  align-items: flex-start;
  justify-content: center;
}

.hero-stats > div {
  display: flex;
  flex-direction: column;
  min-height: 80px;
}

.hero-stat-value {
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--text-dark);
  line-height: 1.3;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.hero-stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  flex-grow: 1;
  display: flex;
  align-items: center;
}

/* =========================================
   Services Cards
   ========================================= */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0;
  background: var(--border);
  border: 1px solid var(--border);
  outline: 1px solid var(--border);
}

.service-card {
  background: var(--off-white);
  padding: 52px 40px;
  transition: background var(--transition);
  position: relative;
  border: none;
  border-radius: 0;
  box-shadow: none;
  outline: 1px solid var(--border);
}

.service-card::before { display: none; }

.service-card:hover {
  background: var(--beige);
  transform: none;
  box-shadow: none;
}

.service-title {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--text-dark);
  margin-bottom: 16px;
  line-height: 1.6;
  letter-spacing: 0.03em;
}

.service-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 2;
  margin-bottom: 28px;
}

.service-link {
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: var(--gold);
  display: flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
  transition: gap var(--transition);
}
.service-link:hover { gap: 16px; }

/* =========================================
   Features / Why Us
   ========================================= */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 48px;
}

.feature-item {
  text-align: left;
  padding: 0;
  background: transparent;
  box-shadow: none;
  border-radius: 0;
}
.feature-item:hover { transform: none; box-shadow: none; }

.feature-title {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--text-dark);
  margin-bottom: 12px;
  letter-spacing: 0.03em;
}

.feature-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 2;
}

/* =========================================
   Service Detail Pages
   ========================================= */
.service-hero {
  padding: 140px 0 80px;
  background: var(--beige);
  color: var(--text-dark);
}

.service-hero-content { max-width: 720px; }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--text-dark); }

.service-hero-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 400;
  margin-bottom: 20px;
  line-height: 1.5;
}

.service-hero-text {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 2;
}

.detail-section { padding: 80px 0; }

.detail-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.detail-img-placeholder {
  aspect-ratio: 4/3;
  background: var(--beige);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--gold);
  font-size: 3.5rem;
  border: 1px solid var(--border);
  border-radius: 0;
}

.detail-img-placeholder p {
  font-size: 0.82rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.spec-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 24px;
  border-top: 1px solid var(--border);
}

.spec-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  background: transparent;
  border-radius: 0;
}

.spec-check {
  width: 20px;
  height: 20px;
  border: 1px solid var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 0.65rem;
  flex-shrink: 0;
  margin-top: 2px;
  border-radius: 0;
  background: transparent;
}

.spec-text {
  font-size: 0.88rem;
  color: var(--text-body);
  line-height: 1.9;
}

/* =========================================
   About Page
   ========================================= */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}

.about-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.about-table tr { border-bottom: 1px solid var(--border); }

.about-table th {
  text-align: left;
  padding: 20px 16px 20px 0;
  font-weight: 400;
  color: var(--text-muted);
  white-space: nowrap;
  width: 140px;
  vertical-align: top;
  letter-spacing: 0.05em;
}

.about-table td {
  padding: 20px 0;
  color: var(--text-body);
  line-height: 1.8;
}

/* =========================================
   CTA Banner
   ========================================= */
.cta-banner {
  background: var(--white);
  padding: 100px 0;
  text-align: center;
  color: var(--text-body);
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--gray-border);
  border-bottom: 1px solid var(--gray-border);
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(139,139,107,0.04) 0%, transparent 70%);
}

.cta-title {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 400;
  margin-bottom: 20px;
  position: relative;
  letter-spacing: 0.04em;
  color: var(--text-dark);
}

.cta-text {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 48px;
  position: relative;
  line-height: 2;
  letter-spacing: 0.02em;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}

/* =========================================
   Contact Form
   ========================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.8fr;
  gap: 80px;
  align-items: start;
}

.contact-info-card {
  background: var(--white);
  padding: 44px;
  border-radius: 0;
  border: 1px solid var(--gray-light);
}

.contact-info-title {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--text-dark);
  margin-bottom: 32px;
  letter-spacing: 0.06em;
}

.contact-info-item {
  display: block;
  margin-bottom: 36px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}

.contact-info-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.contact-info-label {
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.contact-info-value {
  font-size: 0.88rem;
  color: var(--text-dark);
  font-weight: 400;
  margin-top: 4px;
}

.form-group { margin-bottom: 32px; }

.form-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.form-label .required {
  color: var(--gold);
  margin-left: 4px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 0;
  border: none;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
  color: var(--text-dark);
  background: transparent;
  transition: border-color var(--transition);
  font-family: inherit;
  border-radius: 0;
  appearance: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-bottom-color: var(--khaki);
}

.form-textarea { resize: vertical; min-height: 160px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.form-submit {
  width: 100%;
  padding: 16px;
  background: var(--dark-brown);
  color: var(--off-white);
  border: 1px solid var(--dark-brown);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-family: inherit;
  border-radius: 0;
}
.form-submit:hover {
  background: var(--brown-mid);
  border-color: var(--brown-mid);
}

.privacy-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: 16px;
  letter-spacing: 0.05em;
}

/* =========================================
   Footer
   ========================================= */
.footer {
  background: var(--white);
  color: var(--text-muted);
  padding: 80px 0 40px;
  border-top: 1px solid var(--gray-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}

.footer-brand-name {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-dark);
  margin-bottom: 16px;
  letter-spacing: 0.06em;
}

.footer-brand-text {
  font-size: 0.82rem;
  line-height: 2;
  margin-bottom: 24px;
  color: var(--text-muted);
}

.footer-col-title {
  font-size: 0.65rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: color var(--transition);
  letter-spacing: 0.02em;
}
.footer-links a:hover { color: var(--khaki); }

.footer-links li {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-bottom {
  border-top: 1px solid var(--gray-border);
  padding-top: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--gray-muted);
}

/* =========================================
   Page Header (subpages)
   ========================================= */
.page-header {
  padding: 140px 0 80px;
  background: var(--beige-primary);
  color: var(--text-dark);
  border-bottom: 1px solid var(--border);
}

.page-header-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 400;
  margin-bottom: 16px;
  letter-spacing: 0.03em;
}

.page-header-sub {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 2;
  letter-spacing: 0.03em;
}

/* =========================================
   Animations
   ========================================= */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.12s; }
.fade-in-delay-2 { transition-delay: 0.24s; }
.fade-in-delay-3 { transition-delay: 0.36s; }
.fade-in-delay-4 { transition-delay: 0.48s; }

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 900px) {
  .container { padding: 0 24px; }
  .nav-menu {
    display: none;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: var(--off-white);
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
  }
  .nav-menu.open { display: flex; }
  .nav-toggle { display: flex; }
  .nav-cta { margin-left: 0; }

  .hero::after { display: none; }
  .detail-two-col { grid-template-columns: 1fr; gap: 48px; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .section { padding: 96px 0; }
}

@media (max-width: 640px) {
  .section { padding: 72px 0; }
  .hero-stats { gap: 28px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}