:root {
  color-scheme: light dark;
  --background: #f4f7f4;
  --surface: #ffffff;
  --surface-soft: #e8f0eb;
  --text: #24332d;
  --muted: #607069;
  --accent: #346b5b;
  --accent-strong: #255346;
  --border: #cfddd5;
  --focus: #b05d36;
  --shadow: 0 16px 44px rgb(36 51 45 / 8%);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family:
    -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic UI",
    "Yu Gothic", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.8;
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-thickness: 2px;
}

a:focus-visible {
  border-radius: 0.2rem;
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.site-header,
main,
.site-footer {
  width: min(100% - 2rem, 640px);
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.25rem;
}

.brand {
  color: var(--text);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.site-header nav {
  display: flex;
  gap: 1rem;
  font-size: 0.875rem;
}

main {
  min-height: 65vh;
  padding-block: 2.5rem 4rem;
}

.hero {
  padding-block: 2.5rem 3rem;
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--accent);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

h1,
h2,
h3 {
  line-height: 1.4;
}

h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2rem, 10vw, 3.5rem);
  letter-spacing: 0.04em;
}

h2 {
  margin: 3rem 0 1rem;
  font-size: 1.35rem;
}

h3 {
  margin: 2rem 0 0.5rem;
  font-size: 1.05rem;
}

p,
ul,
ol,
dl {
  margin-block: 0.75rem;
}

ul,
ol {
  padding-left: 1.4rem;
}

li + li {
  margin-top: 0.45rem;
}

.lead {
  max-width: 34rem;
  color: var(--muted);
  font-size: 1.1rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.button {
  display: inline-block;
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 0.7rem 1.2rem;
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  text-decoration: none;
}

.button.secondary {
  background: transparent;
  color: var(--accent-strong);
}

.card-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.card,
.notice,
.contact {
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.card {
  padding: 1.25rem;
}

.card h3 {
  margin-top: 0;
}

.notice,
.contact {
  margin-block: 2rem;
  padding: 1.25rem;
}

.notice {
  background: var(--surface-soft);
}

.document-title {
  margin-bottom: 0.5rem;
  font-size: clamp(1.8rem, 8vw, 2.6rem);
}

.meta,
.small {
  color: var(--muted);
  font-size: 0.875rem;
}

.faq {
  margin-top: 2rem;
}

.faq dt {
  margin-top: 1.5rem;
  font-weight: 700;
}

.faq dd {
  margin: 0.5rem 0 0;
  color: var(--muted);
}

.crisis-list a {
  font-weight: 700;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding-block: 2rem 3rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-block: 1rem;
}

@media (min-width: 560px) {
  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 420px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.6rem;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #15201c;
    --surface: #1d2b26;
    --surface-soft: #21362e;
    --text: #e7efeb;
    --muted: #b4c4bd;
    --accent: #8bc5b1;
    --accent-strong: #a9d8c7;
    --border: #385148;
    --focus: #f1a278;
    --shadow: 0 16px 44px rgb(0 0 0 / 16%);
  }

  .button {
    color: #102019;
  }
}

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