:root {
  --ink: #1c2830;
  --ink-soft: #5b6b63;
  --bg: #f5f7f1;
  --surface: #ffffff;
  --line: #e2e6dd;
  --accent: #2f9e4f;
  --accent-soft: #8bc63f;
  --max-width: 720px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #eaf1ec;
    --ink-soft: #a7b3ac;
    --bg: #10161a;
    --surface: #171f24;
    --line: #263038;
    --accent: #4fc873;
    --accent-soft: #a8db5c;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 80px;
}

header.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 56px;
}

.logo {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
}

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

nav.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 14px;
  margin-left: 20px;
}

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

h1 {
  font-size: 28px;
  font-weight: 700;
  margin: 0 0 12px;
}

h2 {
  font-size: 18px;
  font-weight: 700;
  margin: 40px 0 12px;
}

p {
  color: var(--ink-soft);
  margin: 0 0 16px;
}

.lede {
  font-size: 16px;
  color: var(--ink-soft);
  margin-bottom: 40px;
}

.app-card {
  display: block;
  padding: 20px 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  text-decoration: none;
  color: var(--ink);
  margin-bottom: 16px;
  transition: border-color 0.15s ease;
}

.app-card:hover {
  border-color: var(--accent);
}

.app-card .app-name {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 4px;
}

.app-card .app-desc {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0;
}

.app-links {
  display: flex;
  gap: 16px;
  margin-top: 24px;
  font-size: 14px;
}

.app-links a {
  color: var(--accent);
  text-decoration: none;
}

.app-links a:hover {
  text-decoration: underline;
}

.legal section {
  margin-bottom: 28px;
}

.legal h2 {
  font-size: 16px;
  margin: 0 0 8px;
}

.legal p {
  white-space: pre-line;
}

.effective-date {
  margin-top: 48px;
  font-size: 13px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.back-link {
  display: inline-block;
  margin-bottom: 32px;
  font-size: 14px;
  color: var(--ink-soft);
  text-decoration: none;
}

.back-link:hover {
  color: var(--accent);
}

footer.site-footer {
  margin-top: 80px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-soft);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

footer.site-footer a {
  color: var(--ink-soft);
}

.contact-email {
  display: inline-block;
  font-size: 16px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  margin-top: 8px;
}