:root {
  --bg: #fafaf8;
  --text: #1a1a1a;
  --muted: #6b6b66;
  --accent: #3b4a8c;
  --card: #ffffff;
  --border: #e6e4de;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121214;
    --text: #ececea;
    --muted: #9a9a94;
    --accent: #8f9fe0;
    --card: #1b1b1f;
    --border: #2a2a2e;
  }
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 24px;
}

header {
  padding: 48px 0 0;
}

.wordmark {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text);
  text-decoration: none;
}

.wordmark .kanji {
  color: var(--muted);
  font-weight: 400;
  margin-left: 8px;
}

.hero {
  padding: 96px 0 72px;
}

.hero h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  max-width: 480px;
}

.hero p {
  margin-top: 16px;
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 440px;
}

section {
  padding: 0 0 72px;
}

h2 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 20px;
}

.apps {
  display: grid;
  gap: 16px;
}

.app {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 22px;
}

.app h3 {
  font-size: 1rem;
  font-weight: 600;
}

.app p {
  margin-top: 4px;
  font-size: 0.92rem;
  color: var(--muted);
}

.content {
  padding: 64px 0;
}

.content h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.content .updated {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 32px;
}

.content h2 {
  margin-top: 36px;
  text-transform: none;
  letter-spacing: 0;
  font-size: 1.05rem;
  color: var(--text);
  margin-bottom: 8px;
}

.content p {
  margin-bottom: 12px;
  color: var(--text);
}

.content a,
section a,
footer a {
  color: var(--accent);
  text-decoration: none;
}

.content a:hover,
section a:hover,
footer a:hover {
  text-decoration: underline;
}

footer {
  border-top: 1px solid var(--border);
  padding: 32px 0 48px;
  font-size: 0.85rem;
  color: var(--muted);
}

footer .links {
  margin-top: 6px;
}

footer .links a {
  margin-right: 16px;
}