/* Period — shared styles. Palette and type follow the app. */
:root {
  --bg: #F1F1F1;
  --ink: #42393E;
  --muted: #8C8189;
  --lavender: #DFDBEA;
  --rose: #D0B2B4;
  --blue: #6D94BF;
  --line: rgba(66, 57, 62, 0.14);
  --card: #FFFFFF;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Afacad Flux", -apple-system, BlinkMacSystemFont, "Segoe UI",
               "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

.wrap { max-width: 720px; margin: 0 auto; padding: 0 24px; }

/* header ------------------------------------------------------------- */
header.site {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
header.site .wrap { display: flex; align-items: center; gap: 12px; }
header.site img { width: 30px; height: 30px; object-fit: contain; }
header.site .name { font-size: 19px; font-weight: 600; letter-spacing: -0.2px; }
header.site nav { margin-left: auto; display: flex; gap: 20px; }
header.site nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
header.site nav a:hover { color: var(--ink); }

/* hero --------------------------------------------------------------- */
.hero { text-align: center; padding: 64px 0 48px; }
.hero img { width: 210px; max-width: 62vw; height: auto; }
.hero h1 {
  font-size: clamp(30px, 6vw, 42px);
  line-height: 1.2;
  margin: 26px 0 14px;
  letter-spacing: -0.5px;
}
.hero p { color: var(--muted); font-size: 18px; margin: 0 auto; max-width: 30em; }

/* feature cards ------------------------------------------------------ */
.features { display: grid; gap: 16px; padding: 8px 0 56px; }
@media (min-width: 620px) { .features { grid-template-columns: 1fr 1fr; } }

.card {
  background: var(--card);
  border-radius: 18px;
  padding: 22px 24px;
}
.card.lav { background: var(--lavender); }
.card.rose { background: var(--rose); }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; font-size: 15.5px; color: rgba(66, 57, 62, 0.78); }

/* long-form documents ------------------------------------------------ */
.doc { padding: 46px 0 70px; }
.doc h1 { font-size: 30px; margin: 0 0 4px; letter-spacing: -0.4px; }
.doc .updated { color: var(--muted); font-size: 15px; margin: 0 0 34px; }
.doc h2 {
  font-size: 19px;
  margin: 34px 0 8px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}
.doc h2:first-of-type { border-top: none; padding-top: 0; }
.doc p { margin: 0 0 14px; }
.doc ul { margin: 0 0 14px; padding-left: 20px; }
.doc li { margin-bottom: 7px; }
.doc a { color: var(--ink); }

.notice {
  background: var(--lavender);
  border-radius: 14px;
  padding: 16px 20px;
  font-size: 15.5px;
  margin: 0 0 30px;
}

/* footer ------------------------------------------------------------- */
footer.site {
  border-top: 1px solid var(--line);
  padding: 30px 0 46px;
  color: var(--muted);
  font-size: 15px;
}
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 8px 22px; align-items: center; }
footer.site a { color: var(--muted); text-decoration: none; }
footer.site a:hover { color: var(--ink); }
footer.site .spacer { margin-left: auto; }

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1C191B;
    --ink: #EFEAED;
    --muted: #9B9095;
    --card: #262124;
    --lavender: #322D3C;
    --rose: #4A3739;
    --line: rgba(239, 234, 237, 0.16);
  }
  .card p { color: rgba(239, 234, 237, 0.8); }
  .hero img, header.site img { filter: invert(1); }
}