:root {
  --ink: #1a1b1f;
  --muted: #5b616e;
  --cream: #f4f0e8;
  --sand: #e5ded2;
  --clay: #c36241;
  --night: #2a2d34;
  --shadow: rgba(19, 25, 36, 0.12);
  font-family: "Fraunces", "Iowan Old Style", "Palatino", serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: radial-gradient(circle at top, #fff8f0 0%, var(--cream) 55%, var(--sand) 100%);
  line-height: 1.7;
}

header {
  padding: 2.5rem 8vw 1.5rem;
  border-bottom: 1px solid rgba(26, 27, 31, 0.12);
  background: rgba(255, 250, 244, 0.9);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 10;
}

header .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  margin: 0 0 0.6rem;
  color: var(--night);
}

header h1 {
  margin: 0;
  font-size: clamp(2rem, 3vw, 2.8rem);
}

nav {
  margin-top: 0.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

nav a {
  text-decoration: none;
  font-weight: 600;
  color: var(--night);
}

main {
  padding: 2.5rem 8vw 5rem;
  max-width: 960px;
}

#doc {
  background: #fffaf4;
  padding: 2.5rem;
  border-radius: 24px;
  box-shadow: 0 14px 30px var(--shadow);
}

#doc h1,
#doc h2,
#doc h3,
#doc h4 {
  margin-top: 2.2rem;
}

#doc h1:first-child {
  margin-top: 0;
}

#doc p {
  color: var(--ink);
}

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

#doc blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.5rem;
  border-left: 4px solid var(--clay);
  background: rgba(195, 98, 65, 0.08);
}

#doc code {
  font-family: "SFMono-Regular", "Menlo", "Monaco", monospace;
  background: rgba(26, 27, 31, 0.08);
  padding: 0.1rem 0.3rem;
  border-radius: 6px;
}

#doc pre {
  background: rgba(26, 27, 31, 0.9);
  color: #fffaf4;
  padding: 1.2rem 1.4rem;
  border-radius: 16px;
  overflow: auto;
}

#doc pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}

#doc a {
  color: var(--clay);
  font-weight: 600;
}

#doc hr {
  border: none;
  border-top: 1px solid rgba(26, 27, 31, 0.15);
  margin: 2rem 0;
}

.notice {
  padding: 1rem 1.4rem;
  border-radius: 16px;
  background: rgba(26, 27, 31, 0.08);
  color: var(--muted);
  margin-bottom: 1.5rem;
}

@media (max-width: 720px) {
  header {
    padding: 2rem 6vw 1.2rem;
  }

  main {
    padding: 2rem 6vw 4rem;
  }

  #doc {
    padding: 1.8rem;
  }
}