:root {
  --surface: rgba(255, 251, 246, 0.72);
  --text: #1e1a17;
  --muted: #5c5047;
  --line: rgba(30, 26, 23, 0.12);
  --accent: #0d5c63;
  --highlight: #bf6c2d;
  --shadow: 0 24px 60px rgba(60, 37, 16, 0.12);
  --radius-lg: 32px;
  --radius-md: 20px;
  --container: min(1120px, calc(100vw - 48px));
  --font-sans: "Hiragino Sans", "Yu Gothic", "YuGothic", Meiryo, sans-serif;
  --font-serif: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, Georgia, serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: var(--font-sans);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(191, 108, 45, 0.16), transparent 34%),
    radial-gradient(circle at right 10% top 20%, rgba(13, 92, 99, 0.18), transparent 26%),
    linear-gradient(180deg, #f7f1e8 0%, #f1e8dd 46%, #efe3d4 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(30, 26, 23, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 26, 23, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 90%);
}

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

p,
h1,
h2,
h3 {
  margin: 0;
}

.page-shell {
  position: relative;
}

.site-header,
.section,
.site-footer {
  width: var(--container);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 0;
  backdrop-filter: blur(16px);
}

.site-header::after {
  content: "";
  position: absolute;
  inset: 12px -16px;
  z-index: -1;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  background: rgba(247, 241, 232, 0.68);
  box-shadow: 0 12px 32px rgba(68, 48, 31, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 16px;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--accent) 0%, var(--highlight) 100%);
  box-shadow: var(--shadow);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-copy strong {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

.brand-copy span:last-child {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.site-nav {
  display: flex;
  gap: 18px;
  font-size: 0.95rem;
  color: var(--muted);
}

.site-nav a {
  position: relative;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, var(--accent), var(--highlight));
  transition: transform 180ms ease;
}

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

.section {
  padding: 100px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  align-items: center;
  gap: 48px;
  min-height: calc(100vh - 92px);
  padding-top: 48px;
}

.eyebrow {
  margin-bottom: 18px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero h1,
.section-heading h2,
.message-card h2 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.03em;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 6.2rem);
}

.lead,
.section-body p,
.meaning-card p,
.support-card p,
.message-card p,
.company-table dd {
  font-size: 1rem;
  line-height: 1.95;
  color: var(--muted);
}

.lead {
  max-width: 52ch;
  margin-top: 24px;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--accent) 0%, var(--highlight) 100%);
  box-shadow: var(--shadow);
}

.button-secondary {
  border-color: var(--line);
  background: rgba(255, 250, 244, 0.72);
}

.hero-panel {
  position: relative;
  display: grid;
  gap: 16px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.72), rgba(255, 246, 236, 0.58)),
    linear-gradient(180deg, transparent, rgba(13, 92, 99, 0.08));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-panel::before,
.hero-panel::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(8px);
}

.hero-panel::before {
  top: -40px;
  right: -20px;
  width: 140px;
  height: 140px;
  background: rgba(13, 92, 99, 0.16);
}

.hero-panel::after {
  left: -30px;
  bottom: -42px;
  width: 120px;
  height: 120px;
  background: rgba(191, 108, 45, 0.14);
}

.panel-card {
  position: relative;
  padding: 22px;
  border: 1px solid rgba(30, 26, 23, 0.08);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.72);
}

.panel-card-large {
  min-height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background:
    linear-gradient(180deg, rgba(13, 92, 99, 0.08), rgba(255, 255, 255, 0.84)),
    rgba(255, 255, 255, 0.72);
}

.panel-card span,
.meaning-key,
.support-index {
  display: block;
  margin-bottom: 12px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.panel-card strong,
.meaning-card h3,
.support-card h3 {
  font-size: 1.15rem;
  line-height: 1.5;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
  gap: 32px;
  align-items: start;
}

.section-heading h2,
.message-card h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
}

.section-body {
  display: grid;
  gap: 18px;
}

.meaning-grid,
.support-grid {
  display: grid;
  gap: 18px;
  margin-top: 32px;
}

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

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

.meaning-card,
.support-card,
.message-card,
.company-table,
.checklist-card,
.document-card,
.document-hero {
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.meaning-card,
.support-card {
  padding: 28px;
}

.meaning-card h3,
.support-card h3 {
  margin-bottom: 12px;
}

.message-card {
  padding: clamp(28px, 4vw, 56px);
  background:
    linear-gradient(135deg, rgba(13, 92, 99, 0.9), rgba(191, 108, 45, 0.86)),
    var(--surface);
}

.message-card .eyebrow,
.message-card h2,
.message-card p {
  color: #fff;
}

.message-card p {
  margin-top: 20px;
  max-width: 54ch;
}

.checklist-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 32px;
}

.company-table {
  display: grid;
  margin-top: 32px;
  overflow: hidden;
}

.company-table div {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 20px;
  padding: 22px 28px;
  border-bottom: 1px solid var(--line);
}

.company-table div:last-child {
  border-bottom: 0;
}

.company-table dt {
  font-weight: 700;
}

.todo-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #fff;
  background: linear-gradient(135deg, var(--highlight), #d88a4a);
}

.inline-link,
.back-link a,
.footer-links a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

.company-note {
  display: inline-block;
  margin-left: 8px;
  font-size: 0.88rem;
  color: var(--muted);
}

.document-page {
  display: grid;
  gap: 28px;
}

.document-hero,
.document-card {
  padding: clamp(24px, 4vw, 42px);
}

.document-page h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.document-lead {
  max-width: 58ch;
  margin-top: 18px;
  color: var(--muted);
  line-height: 1.9;
}

.document-card {
  display: grid;
  gap: 28px;
}

.document-section {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.document-section:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.document-section h2 {
  margin-bottom: 12px;
  font-family: var(--font-serif);
  font-size: 1.5rem;
}

.document-section p {
  color: var(--muted);
  line-height: 1.9;
}

.back-link {
  margin: 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 10px;
}

.checklist-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  line-height: 1.9;
}

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

.site-footer {
  padding: 24px 0 40px;
  color: var(--muted);
  font-size: 0.9rem;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(13, 92, 99, 0.28);
  outline-offset: 4px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 700ms ease,
    transform 700ms ease;
}

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

@media (max-width: 900px) {
  .site-header {
    flex-direction: column;
    align-items: stretch;
  }

  .site-header::after {
    inset: 8px 0;
    border-radius: 28px;
  }

  .site-nav {
    flex-wrap: wrap;
  }

  .hero,
  .intro-grid,
  .meaning-grid,
  .support-grid,
  .checklist-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 36px;
  }

  .section {
    padding: 72px 0;
  }

  .company-table div {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

@media (max-width: 640px) {
  :root {
    --container: min(100vw - 28px, 1120px);
  }

  .site-header {
    padding: 16px 0;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .hero-panel,
  .meaning-card,
  .support-card,
  .message-card,
  .company-table {
    border-radius: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .button,
  .site-nav a::after {
    transition: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}