/* proformaengine.com: shared by every page in site/. */
:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --text: #16181d;
  --muted: #5b6170;
  --border: #e3e4e8;
  --accent: #2d5bd7;
  --accent-text: #ffffff;
  --code-bg: #eef0f4;
  --shadow: 0 1px 2px rgba(22, 24, 29, 0.06), 0 12px 40px rgba(22, 24, 29, 0.10);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111317;
    --surface: #181b21;
    --text: #e8e9ec;
    --muted: #9aa0ad;
    --border: #2a2e37;
    --accent: #6f93ff;
    --accent-text: #0d1020;
    --code-bg: #1f232b;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 40px rgba(0, 0, 0, 0.45);
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; display: flex; flex-direction: column;
  background: var(--bg); color: var(--text);
  font: 16px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
.wrap { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 16px; }

/* --- header and footer ------------------------------------------------- */
header.top { display: flex; align-items: center; justify-content: space-between; padding: 20px 0; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 650; font-size: 17px; color: var(--text); text-decoration: none; }
.brand svg { width: 28px; height: 28px; }
.login { color: var(--muted); text-decoration: none; font-weight: 550; font-size: 15px; }
.login:hover { color: var(--text); }
main { flex: 1; }
footer { border-top: 1px solid var(--border); color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-top: 20px; padding-bottom: 20px; }
footer nav a { color: var(--muted); text-decoration: none; margin-left: 18px; }
footer nav a:first-child { margin-left: 0; }
footer nav a:hover { color: var(--text); }

/* --- home page --------------------------------------------------------- */
.hero { text-align: center; padding: 56px 0 40px; }
@media (min-width: 720px) { .hero { padding: 88px 0 56px; } }
h1 { font-size: clamp(32px, 5.2vw, 52px); line-height: 1.08; letter-spacing: -0.025em; margin: 0 auto 18px; max-width: 16em; }
.lede { font-size: 18px; color: var(--muted); margin: 0 auto 32px; max-width: 34em; }
.ctas { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.btn {
  display: inline-block; padding: 11px 20px; border-radius: 8px;
  font-weight: 600; font-size: 15px; text-decoration: none;
  border: 1px solid var(--border); color: var(--text); background: var(--surface);
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn:hover { filter: brightness(1.06); }
.note { margin: 18px 0 0; color: var(--muted); font-size: 14px; }
.shot {
  margin: 8px auto 72px; max-width: 1060px;
  border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
  background: var(--surface); box-shadow: var(--shadow);
}
.shot img { display: block; width: 100%; height: auto; }

/* --- text pages (docs, privacy, terms) --------------------------------- */
.prose { max-width: 46rem; margin: 0 auto; padding: 32px 0 72px; }
.prose h1 { font-size: clamp(30px, 4vw, 40px); text-align: left; margin: 0 0 8px; max-width: none; }
.prose .updated { color: var(--muted); font-size: 14px; margin: 0 0 32px; }
.prose h2 { font-size: 21px; letter-spacing: -0.01em; margin: 36px 0 8px; }
.prose h3 { font-size: 17px; margin: 24px 0 6px; }
.prose p, .prose li { color: var(--text); }
.prose ul, .prose ol { padding-left: 1.3rem; }
.prose li { margin: 4px 0; }
.prose code { background: var(--code-bg); padding: 1px 6px; border-radius: 4px; font: 14px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.prose .prompt {
  margin: 10px 0; padding: 12px 16px; border-left: 3px solid var(--accent);
  background: var(--surface); border-radius: 0 8px 8px 0; color: var(--text);
}
.prose .callout { margin: 16px 0; padding: 12px 16px; border: 1px solid var(--border); background: var(--surface); border-radius: 8px; }