:root {
  --primary-600: #1e4c96;
  --accent-400: #1e90ff;
  --background-50: #eaf3ff;
  --neutral-100: #f5f7fa;
  --text-900: #0c1c3a;
  --text-body: #333333;
  --surface-white: #ffffff;
  --surface-card: #f2f6ff;
  --shadow-soft: 0 18px 40px rgba(30, 76, 150, 0.15);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --header-height: 72px;
  --transition-fast: 0.3s ease;
  --transition-medium: 0.45s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Noto Sans JP', 'Roboto', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-body);
  background-color: var(--neutral-100);
  line-height: 1.6;
}

body.nav-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover,
a:focus {
  color: var(--accent-400);
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 12px rgba(12, 28, 58, 0.08);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: center;
  color: var(--text-900);
  text-decoration: none;
}

.brand__image {
  display: block;
  height: 48px;
  width: auto;
}

.nav-toggle {
  background: none;
  border: none;
  display: inline-flex;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 10px;
}

.nav-toggle__bar {
  width: 24px;
  height: 2px;
  background-color: var(--text-900);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.site-nav {
  position: fixed;
  inset: var(--header-height) 0 auto 0;
  background-color: rgba(255, 255, 255, 0.98);
  padding: 32px 24px 48px;
  transform: translateY(-120%);
  transition: transform var(--transition-medium);
  box-shadow: 0 24px 48px rgba(12, 28, 58, 0.12);
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
  font-weight: 500;
}

.site-nav a {
  color: var(--text-900);
  font-size: 1rem;
}

.site-nav--open {
  transform: translateY(0);
}

.hero {
  position: relative;
  background: linear-gradient(135deg, rgba(30, 76, 150, 0.92), rgba(12, 28, 58, 0.92)), url('http://127.0.0.1/assets/img/hero-textile.jpg');
  background-size: cover;
  background-position: center;
  color: var(--surface-white);
  padding: 140px 0 120px;
  overflow: hidden;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: url('data:image/svg+xml,%3Csvg width="160" height="160" viewBox="0 0 160 160" fill="none" xmlns="http://www.w3.org/2000/svg"%3E%3Cpath d="M80 0L160 46.188V113.812L80 160L0 113.812V46.188L80 0Z" fill="%23ffffff" fill-opacity="0.04"/%3E%3C/svg%3E') repeat;
  mix-blend-mode: screen;
}

.hero__content {
  position: relative;
  display: grid;
  gap: 48px;
}

.hero__visual {
  display: none;
}

.hero__image {
  width: 100%;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(30, 144, 255, 0.24)),
    url('../img/main.jpg') center/cover;
  box-shadow: 0 30px 60px rgba(12, 28, 58, 0.32);
}

.hero__eyebrow {
  font-size: 1.3rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 16px;
  font-weight: bold;
}

.hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  line-height: 1.2;
  margin-bottom: 24px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.btn--primary {
  background: linear-gradient(135deg, var(--primary-600), #163a73);
  color: var(--surface-white);
  box-shadow: var(--shadow-soft);
}

.btn--primary:hover,
.btn--primary:focus {
  transform: translateY(-2px);
  background: linear-gradient(135deg, #245ab3, #1e4c96);
}

.btn--ghost {
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: var(--surface-white);
  background-color: transparent;
}

.btn--ghost:hover,
.btn--ghost:focus {
  border-color: var(--surface-white);
  color: var(--surface-white);
  background-color: rgba(255, 255, 255, 0.1);
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-eyebrow {
  display: inline-block;
  color: var(--primary-600);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.section-header h2 {
  color: var(--text-900);
  font-size: clamp(2rem, 3vw, 2.6rem);
  margin-bottom: 16px;
}

.about {
  padding: 120px 0;
  background: var(--surface-white);
}

.about__grid {
  display: grid;
  gap: 24px;
}

.about__card {
  background: var(--surface-card);
  padding: 32px;
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 40px rgba(30, 76, 150, 0.08);
  border: 1px solid rgba(30, 76, 150, 0.12);
}

.about__card h3 {
  margin-top: 0;
  margin-bottom: 16px;
  color: var(--primary-600);
  font-size: 1.4rem;
}

.about__card dl {
  margin: 0;
  display: grid;
  gap: 12px;
}

.about__card dl div {
  display: grid;
  gap: 4px;
}

.about__card dt {
  font-weight: 600;
  color: rgba(12, 28, 58, 0.8);
}

.about__card dd {
  margin: 0;
}

.list-marked {
  padding: 0;
  margin: 0 0 24px;
  list-style: none;
}

.list-marked li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
}

.list-marked li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--accent-400);
}

.list-inline {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
}

.link-arrow {
  color: var(--primary-600);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
}

.link-arrow::after {
  content: '→';
  transition: transform var(--transition-fast);
}

.link-arrow:hover::after {
  transform: translateX(4px);
}

.business {
  padding: 120px 0;
  background: var(--background-50);
}

.business__grid {
  display: grid;
  gap: 24px;
}

.business__card {
  background: var(--surface-white);
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(30, 76, 150, 0.1);
  box-shadow: 0 16px 32px rgba(12, 28, 58, 0.08);
  position: relative;
  overflow: hidden;
}

.business__media {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.business__image {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: 0 16px 24px rgba(12, 28, 58, 0.18);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.business__card:hover .business__image,
.business__card:focus-within .business__image {
  transform: translateY(-4px);
  box-shadow: 0 24px 36px rgba(12, 28, 58, 0.22);
}

.business__card h3 {
  color: var(--primary-600);
  margin-top: 0;
  margin-bottom: 16px;
  font-size: 1.4rem;
}

.business__list {
  padding-left: 18px;
  margin: 24px 0 0;
  color: rgba(12, 28, 58, 0.8);
}

.metrics {
  padding: 120px 0;
  background: linear-gradient(180deg, rgba(30, 76, 150, 0.08), transparent);
}

.metrics__header {
  text-align: center;
  margin-bottom: 48px;
}

.metrics__grid {
  display: grid;
  gap: 20px;
}

.metric-card {
  background: var(--surface-white);
  border-radius: var(--radius-md);
  padding: 28px;
  text-align: center;
  border: 1px solid rgba(30, 76, 150, 0.12);
  box-shadow: 0 14px 32px rgba(12, 28, 58, 0.08);
}

.metric-card__year {
  font-weight: 600;
  color: rgba(12, 28, 58, 0.7);
}

.metric-card__value {
  display: block;
  font-size: 1.8rem;
  color: var(--primary-600);
  margin: 12px 0 4px;
}

.metric-card__label {
  font-weight: 600;
  color: var(--text-900);
}

.metric-card__sub {
  display: block;
  color: rgba(12, 28, 58, 0.6);
  margin-top: 8px;
}

.partners {
  padding: 120px 0;
  background: var(--surface-white);
}

.partners__grid {
  display: grid;
  gap: 16px;
}

.partner-card {
  background: linear-gradient(135deg, rgba(30, 76, 150, 0.1), rgba(30, 76, 150, 0.18));
  border-radius: var(--radius-md);
  padding: 28px 32px;
  color: var(--text-900);
  font-weight: 600;
  box-shadow: 0 12px 24px rgba(12, 28, 58, 0.1);
  text-align: center;
}

.partner-card a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  text-decoration: none;
  color: inherit;
  height: 100%;
}

.partner-card a:focus-visible {
  outline: 3px solid rgba(30, 76, 150, 0.4);
  outline-offset: 4px;
}

.partner-card img {
  width: clamp(150px, 18vw, 220px);
  max-width: 100%;
  max-height: 140px;
  height: auto;
  object-fit: contain;
}

.access {
  padding: 120px 0;
  background: var(--background-50);
}

.access__grid {
  display: grid;
  gap: 32px;
}

.access__map {
  width: 100%;
}

.access__map iframe {
  width: 100%;
  min-height: 320px;
  border: 0;
  border-radius: 24px;
  box-shadow: 0 24px 48px rgba(12, 28, 58, 0.18);
}

.access__details {
  background: var(--surface-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid rgba(30, 76, 150, 0.12);
  box-shadow: 0 18px 32px rgba(12, 28, 58, 0.1);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.access__details h3 {
  margin-top: 0;
  color: var(--primary-600);
}

.access__details p {
  margin: 0;
}

.access__list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.access__cta {
  align-self: flex-start;
}

.support {
  padding: 120px 0;
  background: linear-gradient(135deg, rgba(30, 76, 150, 0.08), rgba(30, 76, 150, 0.02));
}

.support__wrapper {
  display: grid;
  gap: 32px;
  background: var(--surface-white);
  padding: 40px;
  border-radius: 24px;
  box-shadow: 0 24px 48px rgba(12, 28, 58, 0.12);
  border: 1px solid rgba(30, 76, 150, 0.12);
}

.support__list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  gap: 10px;
  color: rgba(12, 28, 58, 0.8);
}

.support__form {
  display: grid;
  gap: 20px;
}

.form-field {
  display: grid;
  gap: 8px;
}

.form-field label {
  font-weight: 600;
  color: var(--text-900);
}

input,
textarea {
  font: inherit;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(12, 28, 58, 0.2);
  background-color: var(--neutral-100);
  transition: border var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent-400);
  box-shadow: 0 0 0 3px rgba(30, 144, 255, 0.2);
}

.form-submit {
  justify-self: start;
}

.site-footer {
  background-color: #0c1c3a;
  color: rgba(255, 255, 255, 0.84);
  padding: 60px 0 32px;
}

.footer__single-line {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  justify-content: center;
  align-items: center;
  text-align: center;
  font-size: 0.95rem;
}

.footer__single-line span {
  color: rgba(255, 255, 255, 0.75);
}

.footer__divider {
  color: rgba(255, 255, 255, 0.4);
}

.footer__copy {
  margin: 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

.scroll-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--primary-600), var(--accent-400));
  color: var(--surface-white);
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 18px 40px rgba(12, 28, 58, 0.25);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.scroll-top--visible {
  display: inline-flex;
}

.scroll-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 48px rgba(12, 28, 58, 0.32);
}

[data-animate] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-animate][data-animate-delay] {
  transition-delay: calc(var(--delay, 0) * 1ms);
}

@media (max-width: 767px) {
  .hero {
    padding: 120px 0 96px;
  }

  .hero__content {
    gap: 32px;
  }

  .hero__text {
    text-align: center;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__visual {
    display: block;
    order: -1;
  }

  .hero__image {
    aspect-ratio: 5 / 4;
    border-radius: 24px;
  }

  .footer__single-line {
    flex-direction: column;
  }

  .footer__divider {
    display: none;
  }
}

@media (min-width: 600px) {
  .hero__content {
    grid-template-columns: 1fr;
  }

  .about__grid,
  .business__grid,
  .metrics__grid,
  .partners__grid,
  .access__grid,
  .support__wrapper {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .partners__grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  }

  .metrics__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  :root {
    --header-height: 80px;
  }

  .container {
    width: min(1200px, 90vw);
  }

  .site-header {
    transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
  }

  .nav-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    transform: none;
    padding: 0;
    background: transparent;
    box-shadow: none;
  }

  .site-nav ul {
    flex-direction: row;
    gap: 24px;
  }

  .site-nav a {
    position: relative;
    padding-bottom: 4px;
  }

  .site-nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent-400);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-fast);
  }

  .site-nav a:hover::after,
  .site-nav a:focus::after {
    transform: scaleX(1);
  }

  .hero__content {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
  }

  .hero__visual {
    display: block;
  }

  .hero__image {
    aspect-ratio: 4 / 5;
    border-radius: 32px;
  }

  .hero__text {
    text-align: left;
  }

  .hero__actions {
    justify-content: flex-start;
  }

  .footer__single-line {
    flex-direction: row;
    flex-wrap: nowrap;
  }

  .footer__divider {
    display: inline;
  }

  .about__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .business__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .business__image {
    height: 200px;
  }

  .metrics__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .access__grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: stretch;
  }

  .support__wrapper {
    grid-template-columns: 1fr 1fr;
    padding: 56px 64px;
  }

}

@media (min-width: 1024px) {
  body {
    font-size: 17px;
  }

  .hero {
    padding: 160px 0 160px;
  }

  .section-header {
    margin-bottom: 60px;
  }

  .partners__grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .access__map iframe {
    min-height: 420px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}