:root {
  --bg: #f4faf7;
  --ink: #0f2a22;
  --muted: #4a675c;
  --card: #ffffff;
  --line: #d7e8df;
  --accent: #1b6b52;
  --accent-soft: #e7f5ef;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, #d9f2e8 0%, transparent 55%),
    radial-gradient(900px 400px at 100% 0%, #e8f6f0 0%, transparent 50%),
    var(--bg);
  line-height: 1.65;
}

a { color: var(--accent); }

.wrap { max-width: 760px; margin: 0 auto; padding: 28px 20px 64px; }

header.app {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.brand {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.55rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--ink);
}

nav { display: flex; gap: 8px; flex-wrap: wrap; }

nav a {
  text-decoration: none;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--line);
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.92rem;
}

nav a.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px 24px 32px;
  box-shadow: 0 10px 30px rgba(15, 42, 34, 0.05);
}

h1 {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.85rem;
  line-height: 1.2;
  margin: 0 0 12px;
}

h2 {
  font-size: 1.2rem;
  margin: 28px 0 10px;
  color: var(--accent);
}

h3 { font-size: 1.05rem; margin: 20px 0 8px; }

p { margin: 0 0 12px; }
.muted { color: var(--muted); }

ul { margin: 0 0 14px; padding-left: 1.2rem; }
li { margin: 0 0 6px; }

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 24px 0;
}

code {
  background: var(--accent-soft);
  padding: 1px 6px;
  border-radius: 6px;
  font-size: 0.92em;
}

/* Disclaimer / callout — compact code-box style, light grey */
blockquote {
  margin: 8px 0 22px;
  padding: 12px 14px;
  background: #eef1f0;
  color: #3a4a44;
  border: 1px solid #d5ddd9;
  border-radius: 12px;
  font-size: 0.78rem;
  line-height: 1.45;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  overflow-x: auto;
}

blockquote p {
  margin: 0;
}

blockquote strong {
  color: #0f2a22;
  font-weight: 600;
}

pre {
  background: var(--accent-soft);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.45;
}

pre code {
  background: transparent;
  padding: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  margin: 12px 0 18px;
  display: block;
  overflow-x: auto;
}

th, td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

th { background: var(--accent-soft); }

.links { display: grid; gap: 12px; margin-top: 18px; }

.links a {
  display: block;
  text-decoration: none;
  color: var(--ink);
  background: var(--accent-soft);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 18px;
}

.links a strong {
  display: block;
  color: var(--accent);
  margin-bottom: 4px;
}

footer {
  margin-top: 28px;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Deep-link highlight when arriving via ?brand= or #brand-… */
.anchor-target,
h2.anchor-target,
h3.anchor-target,
a.anchor-target + h3 {
  scroll-margin-top: 72px;
}

a.anchor-target + h3,
h3.anchor-target {
  outline: 2px solid var(--accent);
  outline-offset: 6px;
  border-radius: 8px;
  background: var(--accent-soft);
  padding: 8px 10px;
}