:root {
  --color-primary: #1a3060;
  --color-primary-light: #2a4a88;
  --color-secondary: #4060c0;
  --color-accent: #c8a030;
  --color-bg: #ffffff;
  --color-bg-alt: #f4f6fb;
  --color-bg-dark: #1a3060;
  --color-text: #1a1a2e;
  --color-text-light: #555577;
  --color-text-on-dark: #ffffff;
  --color-border: #d0d8ec;
  --color-success: #1a7040;
  --font-sans: 'Noto Sans JP', sans-serif;
  --font-serif: 'Noto Serif JP', serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(26,48,96,0.1);
  --shadow-md: 0 4px 12px rgba(26,48,96,0.12);
  --shadow-lg: 0 8px 24px rgba(26,48,96,0.15);
  --container-width: 1100px;
  --header-height: 68px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: var(--header-height); }

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* Container */
.container {
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

/* Screen reader only */
.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;
}

/* ========== HEADER ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-primary);
  border-bottom: 2px solid var(--color-accent);
  box-shadow: var(--shadow-md);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-md);
}

.site-logo {
  text-decoration: none;
  color: var(--color-text-on-dark);
  flex-shrink: 0;
}
.site-logo__main {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.site-logo__sub {
  display: block;
  font-size: 0.65rem;
  color: #b0c0e0;
  letter-spacing: 0.04em;
}

/* Nav */
.site-nav__list {
  display: flex;
  list-style: none;
  gap: var(--space-md);
}
.site-nav__link {
  text-decoration: none;
  color: #d0daee;
  font-size: 0.9rem;
  font-weight: 700;
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.site-nav__link:hover,
.site-nav__link.is-active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  background: none;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
  flex-shrink: 0;
}
.hamburger__line {
  display: block;
  width: 100%;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
  transform-origin: center;
}
.hamburger[aria-expanded="true"] .hamburger__line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] .hamburger__line:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] .hamburger__line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background 0.2s, color 0.2s, transform 0.15s, box-shadow 0.2s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn--primary { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.btn--primary:hover { background: #b8901e; }
.btn--outline { background: transparent; color: #fff; border-color: rgba(255,255,255,0.7); }
.btn--outline:hover { background: rgba(255,255,255,0.12); }
.btn--secondary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn--secondary:hover { background: var(--color-primary-light); }

/* ========== SECTION HEADERS ========== */
.section-header {
  text-align: center;
  margin-bottom: var(--space-lg);
}
.section-eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}
.section-desc {
  color: var(--color-text-light);
  font-size: 0.95rem;
  max-width: 560px;
  margin-inline: auto;
}

/* ========== HERO ========== */
.hero {
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}
.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  padding-block: var(--space-xl);
  min-height: 520px;
}
.hero__eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--color-secondary);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}
.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}
.hero__desc {
  color: var(--color-text-light);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: var(--space-lg);
  max-width: 480px;
}
.hero__actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}
.hero__actions .btn--outline {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.hero__actions .btn--outline:hover {
  background: var(--color-primary);
  color: #fff;
}
.hero__visual svg {
  width: 100%;
  height: auto;
}

/* ========== SERVICES ========== */
.services-section {
  padding-block: var(--space-xl);
}
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.service-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  transition: transform 0.2s, box-shadow 0.2s;
}
.service-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.service-card--main {
  background: #fff;
  border-color: var(--color-primary);
  border-width: 2px;
  border-top: 4px solid var(--color-primary);
}
.service-card__icon {
  font-size: 2rem;
  display: block;
  margin-bottom: var(--space-xs);
}
.service-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}
.service-card__desc {
  font-size: 0.88rem;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: var(--space-sm);
}
.service-card__price {
  font-size: 0.88rem;
  color: var(--color-text);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-accent);
}
.service-card__price strong { color: var(--color-primary); font-size: 1rem; }

/* ========== FLOW ========== */
.flow-section {
  padding-block: var(--space-xl);
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
}
.flow-section .section-title { color: #fff; }
.flow-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  position: relative;
}
.flow-steps::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 15%;
  right: 15%;
  height: 2px;
  background: linear-gradient(to right, var(--color-accent), var(--color-secondary));
}
.flow-step {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
  position: relative;
  z-index: 1;
}
.flow-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}
.flow-step__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
  color: #fff;
}
.flow-step__desc {
  font-size: 0.88rem;
  color: #b0c0e0;
  line-height: 1.7;
}

/* ========== FEATURES ========== */
.features-section {
  padding-block: var(--space-xl);
  background: var(--color-bg-alt);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.feature-card {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
.feature-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.feature-card__icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: var(--space-sm);
}
.feature-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}
.feature-card__desc {
  font-size: 0.88rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ========== ACCESS ========== */
.access-section {
  padding-block: var(--space-xl);
}
.access-inner {
  max-width: 720px;
  margin-inline: auto;
}
.hours-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-sm);
  font-size: 0.88rem;
}
.hours-table th,
.hours-table td {
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  text-align: center;
}
.hours-table thead th {
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
}
.hours-open { color: var(--color-success); font-weight: 700; }
.hours-closed { color: #c0384a; font-weight: 700; }
.hours-time { font-weight: 700; text-align: left; white-space: nowrap; }
.hours-note {
  font-size: 0.82rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}

.info-list { display: grid; gap: var(--space-sm); }
.info-list__item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-sm);
  padding: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
}
.info-list__label {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 0.9rem;
}
.info-list__value {
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.7;
}
.tel-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
}
.tel-link:hover { text-decoration: underline; }

/* ========== FOOTER ========== */
.site-footer {
  background: var(--color-primary);
  color: #b0c0e0;
}
.footer__inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  padding-block: var(--space-lg);
  flex-wrap: wrap;
}
.footer__logo {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: #fff;
  font-weight: 700;
  margin-bottom: 4px;
}
.footer__tagline { font-size: 0.8rem; }
.footer__nav-list {
  list-style: none;
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.footer__nav-list a {
  text-decoration: none;
  color: #b0c0e0;
  font-size: 0.85rem;
  transition: color 0.2s;
}
.footer__nav-list a:hover { color: #fff; }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-block: var(--space-sm);
  text-align: center;
}
.footer__copy { font-size: 0.75rem; color: #7090c0; }

/* ========== RESPONSIVE ========== */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; min-height: auto; }
  .hero__visual { order: -1; max-width: 380px; margin-inline: auto; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 680px) {
  .hamburger { display: flex; }
  .site-nav {
    position: fixed;
    inset: var(--header-height) 0 0 0;
    background: var(--color-primary);
    display: none;
    flex-direction: column;
    padding: var(--space-lg) var(--space-md);
    overflow-y: auto;
    z-index: 99;
  }
  .site-nav.is-open { display: flex; }
  .site-nav__list { flex-direction: column; gap: 0; }
  .site-nav__link {
    display: block;
    padding: var(--space-sm) 0;
    font-size: 1.1rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    border-left: none;
  }
  .hero__inner { padding-block: var(--space-lg); }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; justify-content: center; }
  .service-grid { grid-template-columns: 1fr; }
  .flow-steps { grid-template-columns: 1fr; }
  .flow-steps::before { display: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .info-list__item { grid-template-columns: 100px 1fr; }
  .footer__inner { flex-direction: column; }
  .footer__nav-list { gap: var(--space-sm); }
}