:root {
  color-scheme: light;
  --ink: #23211f;
  --muted: #706b64;
  --line: #dedbd7;
  --orange: #df6428;
  --orange-pale: #fff1e9;
  --page: #ffffff;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  color: var(--ink);
  background: var(--page);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.85;
}

a { color: inherit; }

.wordmark {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.035em;
  text-decoration: none;
}

.site-header, .site-footer {
  width: min(100% - 48px, 1120px);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header {
  min-height: 82px;
  border-bottom: 1px solid var(--line);
}

nav { display: flex; gap: 28px; }

nav a {
  color: var(--muted);
  font-size: 0.92rem;
  text-decoration: none;
}

nav a:hover, nav a:focus-visible, nav a.current { color: var(--orange); }
nav a.current { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 8px; }

.content {
  width: min(100% - 48px, 760px);
  flex: 1;
  margin: 0 auto;
  padding: 92px 0 100px;
}

h1, h2, p { margin-top: 0; }

h1 {
  margin-bottom: 22px;
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  letter-spacing: -0.055em;
  line-height: 1.2;
}

.lead {
  max-width: 38rem;
  color: var(--muted);
  font-size: 1.08rem;
}

.updated { color: var(--muted); font-size: 0.875rem; }

section { padding: 34px 0; border-top: 1px solid var(--line); }
section:first-of-type { margin-top: 48px; }

h2 { margin-bottom: 12px; font-size: 1.25rem; letter-spacing: -0.02em; }
section p:last-child { margin-bottom: 0; }

.contact { color: var(--orange); font-weight: 700; }

.site-footer {
  min-height: 86px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
}
.site-footer nav { gap: 20px; }

.landing-shell {
  width: min(100% - 48px, 720px);
  margin: auto;
  padding: 80px 0;
}
.landing-shell .wordmark { display: block; margin-bottom: 50px; }
.landing-shell h1 { max-width: 12em; }
.landing-shell p { max-width: 36rem; color: var(--muted); }
.landing-shell nav { margin-top: 36px; }

.button {
  display: inline-block;
  padding: 10px 20px;
  color: #fff;
  background: var(--orange);
  border: 1px solid var(--orange);
  border-radius: 999px;
  font-size: 0.9rem;
  text-decoration: none;
}
.button-secondary { color: var(--ink); background: #fff; border-color: var(--line); }

@media (max-width: 600px) {
  .site-header, .site-footer { width: min(100% - 32px, 1120px); }
  .site-header { min-height: 72px; }
  .wordmark { font-size: 1.38rem; }
  nav { gap: 18px; }
  .content { width: min(100% - 32px, 760px); padding: 60px 0 72px; }
  section { padding: 26px 0; }
  .site-footer { min-height: 105px; align-items: flex-start; flex-direction: column; justify-content: center; gap: 8px; }
}