:root {
  --bg: #f4efe4; --panel: #fdfaf1; --ink: #26221a; --muted: #6d6452;
  --accent: #b23a2e; --accent-ink: #fdf6ec; --blue: #33607f;
  --line: #d9d1bd; --line-dash: #c9bfa6; --shadow: rgba(60, 45, 20, .13);
  --edge: #26221a;
  --warn-bg: #f3e6c8; --warn-line: #c9a75c; --code: #ece5d2;
  --serif: Georgia, "Iowan Old Style", "Palatino Linotype", "Times New Roman", serif;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161513; --panel: #1d1b18; --ink: #dcd5c6; --muted: #97907e;
    --accent: #c26450; --accent-ink: #161513; --blue: #6f8fa6;
    --line: #32302a; --line-dash: #413e35; --shadow: rgba(0, 0, 0, .35);
    --edge: #57513f;
    --warn-bg: #252015; --warn-line: #77613a; --code: #232019;
  }
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: var(--serif);
  background: var(--bg); color: var(--ink); line-height: 1.7; font-size: 1.02rem;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 880px; margin: 0 auto; padding: 0 22px; }

/* header wears the airmail band */
header.site { padding: 16px 0 0; }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; }
header.site::after {
  content: ""; display: block; height: 5px; margin-top: 14px;
  background: repeating-linear-gradient(-45deg,
    var(--accent) 0 9px, transparent 9px 18px,
    var(--blue) 18px 27px, transparent 27px 36px);
}
.brand { font-family: var(--mono); font-weight: 700; text-decoration: none; color: var(--ink);
  font-size: 1rem; letter-spacing: -.01em;
  display: inline-flex; align-items: center; gap: 9px; }
.brand span { color: var(--accent); }
.brand svg.logo { display: block; flex: none; }
nav.top { display: flex; gap: 18px; flex-wrap: wrap; }
nav.top a { font-family: var(--mono); color: var(--muted); text-decoration: none;
  font-size: .78rem; text-transform: uppercase; letter-spacing: .07em; }
nav.top a:hover { color: var(--accent); }

.hero { padding: 60px 0 40px; }
.hero h1 { font-family: var(--mono); font-size: clamp(1.55rem, 3.8vw, 2.35rem);
  line-height: 1.3; letter-spacing: -.02em; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p.sub { margin-top: 18px; font-size: 1.16rem; color: var(--muted); max-width: 620px; }
.cta-row { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; }

/* stamp-style buttons */
.btn {
  display: inline-block; padding: 13px 20px; border-radius: 2px; text-decoration: none;
  font-family: var(--mono); font-weight: 700; font-size: .82rem;
  text-transform: uppercase; letter-spacing: .05em;
  border: 2px solid var(--edge); color: var(--ink); background: var(--panel);
  box-shadow: 3px 3px 0 var(--shadow);
}
.btn.primary { background: var(--accent); color: var(--accent-ink); }
.btn:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--shadow); }
.btn:active { transform: translate(1px, 1px); box-shadow: 1px 1px 0 var(--shadow); }

/* rubber-stamp notice */
.beta {
  background: var(--warn-bg); border: 1.5px dashed var(--warn-line); border-radius: 2px;
  padding: 16px 18px; margin: 34px 0 8px; font-size: .98rem;
}
.beta strong { font-family: var(--mono); text-transform: uppercase;
  font-size: .8em; letter-spacing: .05em; color: var(--accent); }

/* perforated section dividers */
section { padding: 40px 0; border-top: 1px dashed var(--line-dash); }
section h2 { font-family: var(--mono); font-size: 1.24rem; margin-bottom: 14px; letter-spacing: -.01em; }
section p { color: var(--muted); max-width: 680px; margin-bottom: 12px; }
section p strong, section li strong { color: var(--ink); }

/* index cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; margin-top: 18px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 3px;
  padding: 18px; box-shadow: 4px 4px 0 var(--shadow); }
.card h3 { font-family: var(--mono); font-size: .98rem; margin-bottom: 8px; }
.card p { font-size: .92rem; margin: 0; }
.card .step { font-family: var(--mono); color: var(--accent); font-weight: 700;
  font-size: .74rem; letter-spacing: .12em; }

code, pre {
  font-family: var(--mono);
  background: var(--code); border: 1px solid var(--line); border-radius: 3px; font-size: .88em;
}
code { padding: 2px 6px; }
pre { padding: 14px 16px; overflow-x: auto; margin: 14px 0; }
ol.walk, ul.walk { margin: 12px 0 12px 22px; color: var(--muted); }
ol.walk li, ul.walk li { margin-bottom: 8px; }
article h2 { margin-top: 34px; }
article h3 { font-family: var(--mono); margin-top: 20px; margin-bottom: 8px; font-size: 1.05rem; }
footer.site { border-top: 1px dashed var(--line-dash); padding: 28px 0 40px; margin-top: 40px; }
footer.site p { font-family: var(--mono); color: var(--muted); font-size: .78rem; max-width: none; }
footer.site a { color: var(--muted); }
a { color: var(--accent); }

/* ---------- small screens ---------- */
@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  header.site .wrap { flex-direction: column; align-items: flex-start; gap: 8px; }
  nav.top { gap: 13px; }
  .hero { padding: 36px 0 26px; }
  .hero h1 { font-size: 1.42rem; }
  .hero p.sub { font-size: 1.05rem; }
  .cta-row { flex-direction: column; }
  .cta-row .btn { width: 100%; text-align: center; padding: 14px 20px; }
  .beta { padding: 14px; font-size: .93rem; }
  section { padding: 30px 0; }
  section h2 { font-size: 1.12rem; }
  .cards { grid-template-columns: 1fr; }
  pre { font-size: .8em; padding: 12px; }
  ol.walk, ul.walk { margin-left: 18px; }
  article .hero h1 { font-size: 1.35rem; }
}
/* comfortable tap targets everywhere */
nav.top a, .btn { min-height: 24px; }


/* ---------- preview ribbon (remove at launch) ---------- */
.preview-ribbon {
  background: var(--accent); color: var(--accent-ink);
  font-family: var(--mono); text-align: center; font-size: .76rem; font-weight: 700;
  text-transform: uppercase; padding: 8px 14px; letter-spacing: .06em;
}