:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f4f8f5;
  --color-text: #1f2724;
  --color-text-secondary: #5c655f;
  --color-border: #e3e8e4;
  --color-accent: #2f6b4f;
  --color-accent-dark: #1f4a36;
  --color-accent-tint: #e9f3ee;

  --font-jp: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  --font-en: "Jost", var(--font-jp);

  --space-section: clamp(4rem, 3rem + 5vw, 8rem);
  --max-width: 1080px;

  --dur-fast: 150ms;
  --dur-normal: 300ms;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-jp);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 700;
  line-height: 1.4;
}

p {
  margin: 0;
}

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

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 12px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--color-text);
  display: inline-flex;
  align-items: baseline;
}

.logo span {
  color: var(--color-accent);
}

.nav-list {
  display: flex;
  gap: 40px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  font-size: 14px;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--dur-normal) var(--ease-out-expo);
}

.nav-list a:hover::after,
.nav-list a[aria-current="page"]::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle .bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  margin: 5px 0;
  transition: transform var(--dur-fast) ease, opacity var(--dur-fast) ease;
}

/* Hero */
.hero {
  padding: clamp(3rem, 2rem + 6vw, 7rem) 0 var(--space-section);
}

.hero h1 {
  font-size: clamp(2rem, 1.1rem + 3.4vw, 3.6rem);
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.hero h1 .accent {
  color: var(--color-accent);
}

.hero .lead {
  margin-top: 24px;
  font-size: 17px;
  color: var(--color-text-secondary);
  max-width: 100%;
}

.hero-note {
  margin-top: 32px;
  font-size: 13px;
  color: var(--color-text-secondary);
  border-left: 2px solid var(--color-accent);
  padding-left: 12px;
}

/* Section */
.section {
  padding: var(--space-section) 0;
  border-top: 1px solid var(--color-border);
}

.section.alt {
  background: var(--color-bg-alt);
}

.section-head {
  max-width: 60ch;
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem);
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 32px 28px;
  transition: transform var(--dur-normal) var(--ease-out-expo),
    border-color var(--dur-normal) var(--ease-out-expo);
}

.card:hover {
  transform: translateY(-6px);
  border-color: var(--color-accent);
}

.card .icon {
  width: 40px;
  height: 40px;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.card h3 {
  font-size: 17px;
  margin-bottom: 10px;
}

.card p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* Fade-in reveal */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--dur-normal) var(--ease-out-expo),
    transform var(--dur-normal) var(--ease-out-expo);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Table (company profile) */
.info-table {
  width: 100%;
  border-collapse: collapse;
}

.info-table tr {
  border-top: 1px solid var(--color-border);
}

.info-table tr:last-child {
  border-bottom: 1px solid var(--color-border);
}

.info-table th,
.info-table td {
  text-align: left;
  padding: 20px 16px;
  font-size: 15px;
  vertical-align: top;
}

.info-table th {
  width: 200px;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.info-list {
  margin: 0;
  padding-left: 1.2em;
}

.info-list li {
  padding-left: 4px;
}

.info-list li + li {
  margin-top: 6px;
}

.info-list li::marker {
  color: var(--color-accent);
}

/* Map */
.map-frame {
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
}

.map-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.access-detail {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  margin-top: 32px;
}

.access-detail dt {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.access-detail dd {
  margin: 0;
  font-size: 15px;
}

.stat-primary,
.stat-secondary {
  font-size: 24px;
  font-weight: 500;
  color: var(--color-text);
}

/* Policy article */
.policy article {
  max-width: 72ch;
}

.policy h2 {
  font-size: 18px;
  margin-top: 40px;
  margin-bottom: 16px;
}

.policy h2:first-child {
  margin-top: 0;
}

.policy p,
.policy li {
  color: var(--color-text-secondary);
  font-size: 15px;
}

.policy ol,
.policy ul {
  padding-left: 1.4em;
}

.policy li + li {
  margin-top: 8px;
}

/* Button */
.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--color-accent);
  color: #fff;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  transition: background var(--dur-fast) ease;
}

.button:hover {
  background: var(--color-accent-dark);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 56px 0 32px;
  background: var(--color-bg-alt);
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 40px;
}

.footer-nav {
  display: flex;
  gap: 28px;
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}

.footer-nav a {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.footer-nav a:hover {
  color: var(--color-accent);
}

.footer-meta {
  font-size: 13px;
  color: var(--color-text-secondary);
}

@media (max-width: 720px) {
  .nav-list {
    position: fixed;
    inset: 76px 0 0 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: 32px 24px;
    gap: 24px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--dur-normal) ease, transform var(--dur-normal) ease;
  }

  .nav-list.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-toggle {
    display: block;
  }

  .info-table th,
  .info-table td {
    display: block;
    width: 100%;
    padding: 6px 0;
  }

  .info-table th {
    padding-top: 20px;
  }
}