:root {
  --bg: #F5F0EB;
  --bg-end: #E8E0D6;
  --text: #1A1A1A;
  --muted: rgba(0, 0, 0, 0.6);
  --primary: #FF6B35;
  --card: rgba(255, 255, 255, 0.72);
  --border: rgba(0, 0, 0, 0.08);
  --max: 720px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI",
    Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  color: var(--text);
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-end) 100%);
  background-attachment: fixed;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 48px 24px 96px;
}

header.site {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
}

.brand {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
  text-decoration: none;
}

.brand .dot {
  color: var(--primary);
}

nav.site a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 20px;
  font-size: 15px;
  font-weight: 500;
}

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

h1 {
  font-size: 34px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  font-weight: 700;
}

h2 {
  font-size: 22px;
  letter-spacing: -0.01em;
  margin: 32px 0 12px;
  font-weight: 600;
}

h3 {
  font-size: 18px;
  margin: 20px 0 6px;
  font-weight: 600;
}

p,
li {
  color: var(--text);
}

.lead {
  color: var(--muted);
  font-size: 18px;
  margin-bottom: 32px;
}

.updated {
  color: var(--muted);
  font-size: 14px;
  margin-top: 0;
  margin-bottom: 24px;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.card {
  background: var(--card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px 28px;
  margin-top: 16px;
}

.card h2:first-child {
  margin-top: 0;
}

ul {
  padding-left: 22px;
}

li {
  margin-bottom: 6px;
}

footer.site {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

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

@media (max-width: 520px) {
  .container {
    padding: 32px 20px 64px;
  }
  h1 {
    font-size: 28px;
  }
  h2 {
    font-size: 20px;
  }
  nav.site a {
    margin-left: 14px;
    font-size: 14px;
  }
}