:root {
  color-scheme: light;
  --ink: #14252a;
  --muted: #51646a;
  --teal: #087f82;
  --teal-dark: #056166;
  --teal-soft: #e5f5f3;
  --amber: #f5b84b;
  --paper: #ffffff;
  --canvas: #f4f8f7;
  --line: #d7e3e1;
  --warning: #fff5d9;
  --warning-line: #e5b34a;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP",
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  line-height: 1.75;
}

a {
  color: var(--teal-dark);
  text-underline-offset: 0.18em;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 3px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgb(255 255 255 / 94%);
  backdrop-filter: blur(10px);
}

.nav {
  width: min(1080px, calc(100% - 32px));
  min-height: 64px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 18px;
  font-size: 0.92rem;
}

.nav-links a {
  color: var(--ink);
  text-decoration: none;
}

main {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  min-height: 520px;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(240px, 0.8fr);
  align-items: center;
  gap: 48px;
  padding: 72px 0;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--teal-dark);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

h1,
h2,
h3 {
  line-height: 1.35;
}

h1 {
  max-width: 13em;
  margin: 0;
  font-size: clamp(2.1rem, 5.2vw, 4rem);
  letter-spacing: -0.035em;
}

.lead {
  max-width: 42rem;
  margin: 24px 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2.4vw, 1.28rem);
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  border: 1px solid #c9a04b;
  border-radius: 999px;
  color: #624600;
  background: var(--warning);
  font-size: 0.9rem;
  font-weight: 700;
}

.hero-art {
  justify-self: center;
  width: min(100%, 360px);
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 32px;
  background: var(--paper);
  box-shadow: 0 24px 70px rgb(10 70 72 / 14%);
}

.hero-art img {
  display: block;
  width: 100%;
  border-radius: 22%;
}

.section {
  padding: 64px 0;
}

.section h2 {
  margin: 0 0 28px;
  font-size: clamp(1.65rem, 3vw, 2.4rem);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card,
.document {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--paper);
  box-shadow: 0 8px 28px rgb(10 70 72 / 6%);
}

.card {
  padding: 24px;
}

.card h3 {
  margin: 0 0 10px;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.privacy-note {
  padding: 28px;
  border-left: 6px solid var(--teal);
  border-radius: 12px;
  background: var(--teal-soft);
}

.privacy-note p:last-child {
  margin-bottom: 0;
}

.document-wrap {
  width: min(820px, calc(100% - 32px));
  margin: 0 auto;
  padding: 52px 0 80px;
}

.document {
  padding: clamp(24px, 5vw, 56px);
}

.document h1 {
  max-width: none;
  font-size: clamp(2rem, 5vw, 3rem);
}

.document h2 {
  margin-top: 2.2em;
  font-size: 1.35rem;
}

.document h3 {
  margin-top: 1.8em;
}

.draft-banner {
  margin: 24px 0 32px;
  padding: 16px 18px;
  border: 1px solid var(--warning-line);
  border-radius: 12px;
  background: var(--warning);
}

.meta {
  color: var(--muted);
  font-size: 0.94rem;
}

.site-footer {
  margin-top: 40px;
  border-top: 1px solid var(--line);
  background: var(--paper);
}

.footer-inner {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-inner p {
  margin: 0;
}

@media (max-width: 760px) {
  .nav {
    align-items: flex-start;
    padding: 10px 0;
  }

  .brand span {
    display: none;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 48px 0 64px;
  }

  .hero-art {
    width: min(75vw, 300px);
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}