:root {
  --bg: #f1f1f0;
  --surface: #fafaf9;
  --ink: #1c1c1c;
  --muted: #5f5f5c;
  --rule: #d3d3d0;
  --todo-bg: #fff3c4;
  --todo-ink: #5c4400;
  --sans: system-ui, -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161616;
    --surface: #1e1e1e;
    --ink: #ececea;
    --muted: #a3a39f;
    --rule: #333331;
    --todo-bg: #4a3b00;
    --todo-ink: #ffe9a0;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}

a { color: var(--ink); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--muted); }

/* --- masthead --- */
.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 24px;
  padding: 30px 0 14px;
  border-bottom: 1px solid var(--rule);
}
.wordmark {
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
}
.site-nav { display: flex; flex-wrap: wrap; gap: 4px 20px; font-size: 15px; }
.site-nav a { text-decoration: none; color: var(--muted); }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); }

/* --- content --- */
main { padding: 56px 0 72px; }

h1 {
  font-size: clamp(34px, 6vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 20px;
}
h2 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 56px 0 18px;
  padding-top: 28px;
  border-top: 1px solid var(--rule);
}
h3 { font-size: 19px; line-height: 1.3; margin: 28px 0 6px; }
p, ul, ol { margin: 0 0 16px; }
li + li { margin-top: 6px; }

.lede { font-size: 20px; line-height: 1.5; max-width: 36em; }
.meta { color: var(--muted); font-size: 15px; }

.callout {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--ink);
  border-radius: 6px;
  padding: 16px 18px;
  margin: 20px 0;
}
.callout > :last-child { margin-bottom: 0; }

.big-email {
  font-size: clamp(22px, 4.5vw, 30px);
  font-weight: 700;
  word-break: break-word;
}

/* --- products --- */
.products { display: grid; gap: 16px; margin: 0; padding: 0; list-style: none; }
.products li { margin: 0; }
.product {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 18px 20px;
}
.product h3 { margin: 0 0 2px; }
.product .domain { margin: 0 0 10px; font-size: 15px; color: var(--muted); }
.product p:last-child { margin-bottom: 0; }

/* Placeholder copy the owner still has to write. scripts/check.sh refuses a
   production deploy while any of these remain. */
.todo {
  background: var(--todo-bg);
  color: var(--todo-ink);
  border-radius: 3px;
  padding: 0 4px;
}

/* --- footer --- */
.site-footer {
  border-top: 1px solid var(--rule);
  padding: 24px 0 56px;
  font-size: 14px;
  color: var(--muted);
}
.site-footer p { margin: 0 0 8px; }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--ink); }
.site-footer .links { display: flex; flex-wrap: wrap; gap: 4px 18px; }

@media (max-width: 600px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  main { padding: 40px 0 56px; }
  .lede { font-size: 18px; }
}