/* One stylesheet for four pages. The accent is the app's own seed colour
   (AppTheme.seed, #3F6E9A) so the listing page and the screenshots beside
   it read as one thing. Light and dark, no build step, no
   webfonts: the site has to load on a slow connection from a store
   listing, and a privacy page that phones home for a font is a poor
   advertisement for an app that does not phone home at all. */

:root {
  color-scheme: light dark;
  --bg: #fbfbfd;
  --surface: #ffffff;
  --border: #e2e2e8;
  --text: #17171c;
  --muted: #5c5c68;
  --accent: #3f6e9a;
  --accent-soft: #e8eff6;
  --radius: 14px;
  --measure: 42rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121216;
    --surface: #1a1a20;
    --border: #2c2c35;
    --text: #ececf1;
    --muted: #a2a2b0;
    --accent: #9dbbd9;
    --accent-soft: #1c2a38;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

.wrap {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 20px;
}

/* ------------------------------------------------------------ header */

header.site {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

header.site .wrap {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
  font-size: 18px;
  color: var(--text);
  text-decoration: none;
}

.brand .mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 15px;
  font-weight: 700;
}

@media (prefers-color-scheme: dark) {
  .brand .mark { color: #12121a; }
}

nav.site {
  margin-left: auto;
  display: flex;
  gap: 18px;
  font-size: 15px;
}

nav.site a { color: var(--muted); text-decoration: none; }
nav.site a:hover,
nav.site a[aria-current="page"] { color: var(--text); }

/* -------------------------------------------------------------- page */

main { padding: 40px 0 64px; }

h1 {
  font-size: 2.1rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}

h2 {
  font-size: 1.25rem;
  margin: 40px 0 10px;
  letter-spacing: -0.01em;
}

h3 { font-size: 1.02rem; margin: 26px 0 6px; }

p, li { color: var(--text); }

.lead {
  font-size: 1.15rem;
  color: var(--muted);
  margin: 0 0 28px;
}

.updated {
  font-size: 0.92rem;
  color: var(--muted);
  margin: 0 0 28px;
}

a { color: var(--accent); }

ul { padding-left: 1.25em; }
li { margin: 6px 0; }

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.92em;
  background: var(--accent-soft);
  padding: 1px 5px;
  border-radius: 5px;
}

/* ------------------------------------------------------------- cards */

.cards {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin: 28px 0;
  padding: 0;
  list-style: none;
}

.cards li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin: 0;
}

.cards strong { display: block; margin-bottom: 4px; }
.cards span { color: var(--muted); font-size: 0.95rem; }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 24px 0;
}

.panel p:first-child { margin-top: 0; }
.panel p:last-child { margin-bottom: 0; }

/* ------------------------------------------------------------ button */

.button {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 11px 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
}

@media (prefers-color-scheme: dark) {
  .button { color: #12121a; }
}

.button.secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--border);
}

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0; }

/* --------------------------------------------------------- questions */

details {
  border-top: 1px solid var(--border);
  padding: 14px 0;
}

details summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

details summary::-webkit-details-marker { display: none; }

details summary::before {
  content: "+";
  display: inline-block;
  width: 1.2em;
  color: var(--accent);
  font-weight: 700;
}

details[open] summary::before { content: "\2013"; }

details p:last-child { margin-bottom: 0; }

/* ------------------------------------------------------------ footer */

footer.site {
  border-top: 1px solid var(--border);
  padding: 26px 0 48px;
  color: var(--muted);
  font-size: 0.92rem;
}

footer.site .wrap { display: flex; flex-wrap: wrap; gap: 8px 20px; }
footer.site a { color: var(--muted); }
footer.site .spacer { margin-left: auto; }

/* Screenshots are added as they are taken; the frame keeps the page from
   jumping when they land. */
.shots {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  margin: 28px 0;
}

.shots img {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: block;
}