/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #1a4a6e;
  --primary-light: #2563a0;
  --primary-dark: #0f2d44;
  --accent: #e07b2a;
  --accent-light: #f5a55e;
  --success: #2e7d5e;
  --warning: #b45309;
  --error: #b91c1c;
  --neutral-50: #f8f9fa;
  --neutral-100: #f1f3f5;
  --neutral-200: #e9ecef;
  --neutral-300: #dee2e6;
  --neutral-400: #ced4da;
  --neutral-500: #adb5bd;
  --neutral-600: #6c757d;
  --neutral-700: #495057;
  --neutral-800: #343a40;
  --neutral-900: #212529;
  --white: #ffffff;
  --font-sans: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,.10), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 30px rgba(0,0,0,.12), 0 4px 8px rgba(0,0,0,.06);
  --radius: 8px;
  --radius-lg: 16px;
  --spacing: 8px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--neutral-800);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
}

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

/* ===== Typography ===== */
h1, h2, h3, h4 { line-height: 1.25; font-weight: 700; }
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p { line-height: 1.8; color: var(--neutral-700); }

/* ===== Layout ===== */
.container { max-width: 1100px; margin: 0 auto; padding: 0 calc(var(--spacing) * 2.5); }
.section { padding: calc(var(--spacing) * 10) 0; }
.section--alt { background: var(--neutral-50); }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--neutral-200);
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: calc(var(--spacing) * 2);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: calc(var(--spacing) * 1.5);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--primary);
  letter-spacing: .02em;
  white-space: nowrap;
}

.nav__brand-sub {
  font-size: .7rem;
  font-weight: 400;
  color: var(--neutral-600);
  display: block;
  letter-spacing: .04em;
}

.nav__links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: calc(var(--spacing) * .5);
}

.nav__links a {
  display: block;
  padding: calc(var(--spacing) * .75) calc(var(--spacing) * 1.5);
  font-size: .9rem;
  font-weight: 500;
  color: var(--neutral-700);
  border-radius: var(--radius);
  transition: background .18s, color .18s;
  white-space: nowrap;
}

.nav__links a:hover,
.nav__links a.active {
  background: var(--neutral-100);
  color: var(--primary);
}

.nav__links a.active {
  color: var(--primary);
  font-weight: 700;
}

/* Mobile menu toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--neutral-700);
  border-radius: 2px;
  transition: transform .25s, opacity .25s;
}

/* ===== Hero ===== */
.hero {
  background: url('/image.png') center center / cover no-repeat;
  color: var(--white);
  padding: calc(var(--spacing) * 16) 0 calc(var(--spacing) * 14);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,45,68,.82) 0%, rgba(26,74,110,.75) 55%, rgba(37,99,160,.65) 100%);
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--spacing) * 6);
  align-items: center;
}

.hero__tag {
  display: inline-block;
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 100px;
  padding: 4px 16px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  margin-bottom: calc(var(--spacing) * 2);
}

.hero h1 { color: var(--white); margin-bottom: calc(var(--spacing) * 3); }
.hero p { color: rgba(255,255,255,.85); font-size: 1.1rem; margin-bottom: calc(var(--spacing) * 4); }

.hero__cta { display: flex; gap: calc(var(--spacing) * 2); flex-wrap: wrap; }

.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__card {
  background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.20);
  border-radius: var(--radius-lg);
  padding: calc(var(--spacing) * 4);
  backdrop-filter: blur(8px);
  width: 100%;
  max-width: 360px;
}

.hero__card-item {
  display: flex;
  align-items: center;
  gap: calc(var(--spacing) * 2);
  padding: calc(var(--spacing) * 1.5) 0;
  border-bottom: 1px solid rgba(255,255,255,.12);
  color: rgba(255,255,255,.9);
  font-size: .9rem;
}
.hero__card-item:last-child { border-bottom: none; }
.hero__card-item svg { flex-shrink: 0; color: var(--accent-light); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--spacing) * 1);
  padding: calc(var(--spacing) * 1.5) calc(var(--spacing) * 3);
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background .18s, color .18s, border-color .18s, transform .12s, box-shadow .18s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); }

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

.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.6);
}
.btn--outline:hover { background: rgba(255,255,255,.12); border-color: var(--white); }

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

/* ===== Section Heading ===== */
.section-heading { text-align: center; margin-bottom: calc(var(--spacing) * 7); }
.section-heading__eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: calc(var(--spacing) * 1.5);
}
.section-heading h2 { color: var(--primary-dark); margin-bottom: calc(var(--spacing) * 2); }
.section-heading p { max-width: 580px; margin: 0 auto; color: var(--neutral-600); }

/* ===== Cards ===== */
.card-grid { display: grid; gap: calc(var(--spacing) * 3); }
.card-grid--3 { grid-template-columns: repeat(3, 1fr); }
.card-grid--2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  padding: calc(var(--spacing) * 4);
  transition: box-shadow .2s, transform .2s, border-color .2s;
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); border-color: var(--neutral-300); }

.card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius);
  background: var(--neutral-100);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: calc(var(--spacing) * 3);
  color: var(--primary);
}
.card__icon--accent { background: #fff4eb; color: var(--accent); }
.card__icon--success { background: #e8f5f0; color: var(--success); }

.card h3 { color: var(--primary-dark); margin-bottom: calc(var(--spacing) * 1.5); }
.card p { font-size: .9rem; }

/* ===== Feature List ===== */
.feature-list { list-style: none; }
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: calc(var(--spacing) * 1.5);
  padding: calc(var(--spacing) * 1.5) 0;
  border-bottom: 1px solid var(--neutral-200);
  font-size: .95rem;
}
.feature-list li:last-child { border-bottom: none; }
.feature-list__icon { flex-shrink: 0; color: var(--success); margin-top: 2px; }

/* ===== Pricing ===== */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: calc(var(--spacing) * 3); }

.pricing-card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  padding: calc(var(--spacing) * 5) calc(var(--spacing) * 4);
  display: flex;
  flex-direction: column;
  transition: box-shadow .2s, transform .2s;
}
.pricing-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }

.pricing-card--featured {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
  transform: scale(1.03);
}
.pricing-card--featured:hover { transform: scale(1.03) translateY(-3px); }
.pricing-card--featured h3,
.pricing-card--featured .pricing-price,
.pricing-card--featured .pricing-price__amount { color: var(--white); }
.pricing-card--featured p,
.pricing-card--featured .pricing-item { color: rgba(255,255,255,.85); }
.pricing-card--featured .pricing-divider { border-color: rgba(255,255,255,.2); }
.pricing-card--featured .feature-list__icon { color: var(--accent-light); }
.pricing-card--featured .pricing-badge { background: var(--accent); color: var(--white); }

.pricing-badge {
  display: inline-block;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  background: var(--accent);
  color: var(--white);
  border-radius: 100px;
  padding: 3px 12px;
  margin-bottom: calc(var(--spacing) * 2);
  align-self: flex-start;
}

.pricing-card h3 { color: var(--primary-dark); margin-bottom: calc(var(--spacing) * 1); }
.pricing-card > p { font-size: .9rem; margin-bottom: calc(var(--spacing) * 3); }
.pricing-divider { border: none; border-top: 1px solid var(--neutral-200); margin: calc(var(--spacing) * 3) 0; }

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: calc(var(--spacing) * .5);
}
.pricing-price__label { font-size: .85rem; color: var(--neutral-600); }
.pricing-price__amount { font-size: 2rem; font-weight: 700; color: var(--primary-dark); }
.pricing-price__unit { font-size: .85rem; color: var(--neutral-600); }

.pricing-note { font-size: .8rem; color: var(--neutral-500); margin-bottom: calc(var(--spacing) * 3); }

.pricing-item {
  display: flex;
  align-items: flex-start;
  gap: calc(var(--spacing) * 1.5);
  padding: calc(var(--spacing) * 1) 0;
  font-size: .9rem;
  color: var(--neutral-700);
}
.pricing-item svg { flex-shrink: 0; color: var(--success); margin-top: 2px; }
.pricing-card--featured .pricing-item svg { color: var(--accent-light); }

.pricing-card .btn { margin-top: auto; }

/* ===== Testimonials ===== */
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: calc(var(--spacing) * 3); }

.testimonial-card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  padding: calc(var(--spacing) * 4);
  transition: box-shadow .2s, transform .2s;
}
.testimonial-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }

.testimonial-card__quote {
  font-size: 2rem;
  color: var(--accent);
  font-family: Georgia, serif;
  line-height: 1;
  margin-bottom: calc(var(--spacing) * 2);
}

.testimonial-card p { font-size: .9rem; line-height: 1.8; margin-bottom: calc(var(--spacing) * 3); }

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: calc(var(--spacing) * 1.5);
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--neutral-100);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.testimonial-card__author-info strong { display: block; font-size: .9rem; color: var(--neutral-800); }
.testimonial-card__author-info span { font-size: .8rem; color: var(--neutral-500); }

.star-rating { display: flex; gap: 2px; margin-bottom: calc(var(--spacing) * 1.5); }
.star-rating svg { color: #f59e0b; }

/* ===== Company / About ===== */
.company-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--spacing) * 8);
  align-items: start;
}

.company-info-table { width: 100%; border-collapse: collapse; }
.company-info-table tr { border-bottom: 1px solid var(--neutral-200); }
.company-info-table tr:last-child { border-bottom: none; }
.company-info-table th {
  padding: calc(var(--spacing) * 2) calc(var(--spacing) * 2);
  text-align: left;
  font-weight: 600;
  font-size: .85rem;
  color: var(--primary);
  white-space: nowrap;
  width: 120px;
  vertical-align: top;
}
.company-info-table td {
  padding: calc(var(--spacing) * 2) calc(var(--spacing) * 2);
  font-size: .9rem;
  color: var(--neutral-700);
}

/* ===== Access / Map ===== */
.map-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--neutral-200);
  height: 420px;
}
.map-container iframe { width: 100%; height: 100%; display: block; border: none; }

.access-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: calc(var(--spacing) * 6); align-items: start; }
.access-info { display: flex; flex-direction: column; gap: calc(var(--spacing) * 3); }
.access-info-item {
  display: flex;
  gap: calc(var(--spacing) * 2);
  align-items: flex-start;
}
.access-info-item__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  background: var(--neutral-100);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--primary);
}
.access-info-item strong { display: block; font-size: .85rem; font-weight: 700; color: var(--neutral-800); margin-bottom: 2px; }
.access-info-item p { font-size: .9rem; margin: 0; }

/* ===== Stats / Numbers ===== */
.stats-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: calc(var(--spacing) * 3); }
.stat-item { text-align: center; padding: calc(var(--spacing) * 4); }
.stat-item__number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  margin-bottom: calc(var(--spacing) * 1);
}
.stat-item__label { font-size: .9rem; color: var(--neutral-600); }

/* ===== CTA Banner ===== */
.cta-banner {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: var(--white);
  text-align: center;
  padding: calc(var(--spacing) * 12) 0;
}
.cta-banner h2 { color: var(--white); margin-bottom: calc(var(--spacing) * 2); }
.cta-banner p { color: rgba(255,255,255,.8); margin-bottom: calc(var(--spacing) * 4); }

/* ===== Footer ===== */
.site-footer {
  background: var(--neutral-900);
  color: var(--neutral-400);
  padding: calc(var(--spacing) * 8) 0 calc(var(--spacing) * 4);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: calc(var(--spacing) * 6);
  margin-bottom: calc(var(--spacing) * 6);
}

.footer-brand h3 { color: var(--white); font-size: 1.1rem; margin-bottom: calc(var(--spacing) * 1); }
.footer-brand p { font-size: .85rem; line-height: 1.7; }

.footer-nav h4 { color: var(--white); font-size: .9rem; margin-bottom: calc(var(--spacing) * 2.5); }
.footer-nav ul { list-style: none; display: flex; flex-direction: column; gap: calc(var(--spacing) * 1); }
.footer-nav a { font-size: .85rem; transition: color .15s; }
.footer-nav a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid var(--neutral-800);
  padding-top: calc(var(--spacing) * 3);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .8rem;
  flex-wrap: wrap;
  gap: calc(var(--spacing) * 1);
}

/* ===== Page Hero ===== */
.page-hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: var(--white);
  padding: calc(var(--spacing) * 10) 0;
}
.page-hero h1 { color: var(--white); margin-bottom: calc(var(--spacing) * 1.5); }
.page-hero p { color: rgba(255,255,255,.8); font-size: 1.05rem; }
.breadcrumb { display: flex; align-items: center; gap: calc(var(--spacing) * 1); font-size: .85rem; color: rgba(255,255,255,.6); margin-bottom: calc(var(--spacing) * 2); }
.breadcrumb a { color: rgba(255,255,255,.7); transition: color .15s; }
.breadcrumb a:hover { color: var(--white); }
.breadcrumb__sep { color: rgba(255,255,255,.4); }

/* ===== Highlight Box ===== */
.highlight-box {
  border-left: 4px solid var(--accent);
  background: var(--neutral-50);
  padding: calc(var(--spacing) * 3) calc(var(--spacing) * 4);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: calc(var(--spacing) * 4) 0;
}
.highlight-box p { margin: 0; font-size: .95rem; }

/* ===== Scroll to top ===== */
.scroll-top {
  position: fixed;
  bottom: calc(var(--spacing) * 3);
  right: calc(var(--spacing) * 3);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  border: none;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: background .18s, transform .18s;
  z-index: 99;
}
.scroll-top:hover { background: var(--primary-dark); transform: translateY(-2px); }
.scroll-top.visible { display: flex; }

/* ===== Flow section (index) ===== */
.flow-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.flow-steps::after {
  content: '';
  position: absolute;
  top: 40px;
  left: calc(12.5% + 20px);
  right: calc(12.5% + 20px);
  height: 2px;
  background: var(--neutral-200);
  z-index: 0;
}
.flow-step {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 calc(var(--spacing) * 2);
}
.flow-step__num {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--white);
  border: 3px solid var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  margin: 0 auto calc(var(--spacing) * 3);
  box-shadow: var(--shadow-sm);
}
.flow-step h4 { color: var(--primary-dark); margin-bottom: calc(var(--spacing) * 1); }
.flow-step p { font-size: .85rem; }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { display: none; }
  .card-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-card--featured { transform: scale(1); }
  .pricing-card--featured:hover { transform: translateY(-3px); }
  .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
  .company-grid { grid-template-columns: 1fr; }
  .access-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .flow-steps { grid-template-columns: repeat(2, 1fr); gap: calc(var(--spacing) * 4); }
  .flow-steps::after { display: none; }
  .stats-row { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 600px) {
  .nav__links { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--white); border-bottom: 1px solid var(--neutral-200); padding: calc(var(--spacing) * 2); box-shadow: var(--shadow-md); }
  .nav__links.open { display: flex; }
  .nav__toggle { display: flex; }
  .card-grid--3 { grid-template-columns: 1fr; }
  .card-grid--2 { grid-template-columns: 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .flow-steps { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr; }
  .hero__cta { flex-direction: column; }
  .footer-bottom { flex-direction: column; text-align: center; }
}