:root {
  color-scheme: dark;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --panel: #34312d;
  --panel-strong: #3a3632;
  --border: #45403a;
  --accent: #81b64c;
  --accent-dark: #6aa23d;
  --muted: #b8b0a4;
  --text: #f4f2ec;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(129, 182, 76, 0.08), transparent 24%),
    linear-gradient(180deg, #322f2c 0%, #2b2926 100%);
  color: var(--text);
}

h1, h2, h3, p, ul {
  margin-top: 0;
}

h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 900;
  line-height: 1.1;
}

h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.3rem;
  margin-bottom: 12px;
}

h3 {
  font-size: 1.15rem;
  color: var(--text);
  margin-bottom: 6px;
}

p {
  color: var(--muted);
  line-height: 1.7;
  font-size: 1.05rem;
}

code {
  background: rgba(129, 182, 76, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.92em;
  color: var(--text);
}

/* Shared card */
.card {
  border: 1px solid var(--border);
  border-radius: 24px;
  background: linear-gradient(180deg, #3b3833 0%, #2f2c28 100%);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
  padding: 40px;
}

/* Eyebrow label */
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  color: var(--accent);
  margin: 0 0 12px;
}

/* Pill-style back/nav button */
a.back {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  margin-top: 28px;
  transition: border-color 0.15s;
}

a.back:hover {
  border-color: var(--accent);
}

/* Inline text link */
a.inline {
  display: inline;
  padding: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

/* GitHub link icon */
a.inline[href*="github.com"]::after {
  content: "";
  display: inline-block;
  width: 0.85em;
  height: 0.85em;
  margin-left: 0.25em;
  vertical-align: -0.05em;
  background: currentColor;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.01 8.01 0 0016 8c0-4.42-3.58-8-8-8z'/%3E%3C/svg%3E") no-repeat center;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.01 8.01 0 0016 8c0-4.42-3.58-8-8-8z'/%3E%3C/svg%3E") no-repeat center;
}

/* External site link icon (non-GitHub) */
a.inline.external::after {
  content: "";
  display: inline-block;
  width: 0.75em;
  height: 0.75em;
  margin-left: 0.25em;
  vertical-align: -0.02em;
  background: currentColor;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3.75 2A1.75 1.75 0 002 3.75v8.5c0 .966.784 1.75 1.75 1.75h8.5A1.75 1.75 0 0014 12.25v-3.5a.75.75 0 00-1.5 0v3.5a.25.25 0 01-.25.25h-8.5a.25.25 0 01-.25-.25v-8.5a.25.25 0 01.25-.25h3.5a.75.75 0 000-1.5h-3.5zm6.5 0a.75.75 0 000 1.5h1.19L7.22 7.72a.75.75 0 101.06 1.06l4.22-4.22v1.19a.75.75 0 001.5 0v-3A.75.75 0 0013.25 2h-3z'/%3E%3C/svg%3E") no-repeat center;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3.75 2A1.75 1.75 0 002 3.75v8.5c0 .966.784 1.75 1.75 1.75h8.5A1.75 1.75 0 0014 12.25v-3.5a.75.75 0 00-1.5 0v3.5a.25.25 0 01-.25.25h-8.5a.25.25 0 01-.25-.25v-8.5a.25.25 0 01.25-.25h3.5a.75.75 0 000-1.5h-3.5zm6.5 0a.75.75 0 000 1.5h1.19L7.22 7.72a.75.75 0 101.06 1.06l4.22-4.22v1.19a.75.75 0 001.5 0v-3A.75.75 0 0013.25 2h-3z'/%3E%3C/svg%3E") no-repeat center;
}

/* Subpage layout (800px centered) */
.subpage {
  width: min(100%, 800px);
  margin: 0 auto;
  padding: 48px 22px 60px;
}