/* FolioTone support site. System fonts only; no external resources. */
:root {
  color-scheme: light dark;
  --accent: #007AFF;
  --bg: #F2F2F7;
  --card: #FFFFFF;
  --text: #1C1C1E;
  --secondary: #6C6C70;
  --separator: #D1D1D6;
  --code-bg: #F2F2F7;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #0A84FF;
    --bg: #000000;
    --card: #1C1C1E;
    --text: #F2F2F7;
    --secondary: #AEAEB2;
    --separator: #38383A;
    --code-bg: #2C2C2E;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB",
    "Helvetica Neue", Helvetica, Arial, "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.6;
}

main, header.site, footer.site {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px;
}

header.site {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 20px;
  padding-bottom: 8px;
}

header.site .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
}

header.site .brand img {
  width: 32px;
  height: 32px;
  border-radius: 7px;
}

header.site .lang {
  font-size: 15px;
}

a { color: var(--accent); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; }

h1 {
  font-size: 32px;
  line-height: 1.25;
  margin: 24px 0 4px;
}

h2 {
  font-size: 22px;
  line-height: 1.3;
  margin: 36px 0 8px;
}

h3 {
  font-size: 18px;
  margin: 24px 0 6px;
}

.meta {
  color: var(--secondary);
  font-size: 15px;
  margin: 0 0 20px;
}

.card {
  background: var(--card);
  border-radius: 12px;
  padding: 4px 20px;
  margin: 16px 0;
}

.summary {
  background: var(--card);
  border-left: 4px solid var(--accent);
  border-radius: 12px;
  padding: 14px 20px;
  margin: 20px 0;
}

.summary p { margin: 6px 0; }

ul { padding-left: 1.3em; }
li { margin: 4px 0; }

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 15px;
}

th, td {
  text-align: left;
  vertical-align: top;
  padding: 8px 10px 8px 0;
  border-bottom: 1px solid var(--separator);
}

th { font-weight: 600; }

/* Landing page */
.hero {
  text-align: center;
  padding: 32px 0 8px;
}

.hero img {
  width: 128px;
  height: 128px;
  border-radius: 28px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
}

.hero h1 { margin-top: 20px; }

.hero .tagline {
  color: var(--secondary);
  font-size: 19px;
  margin: 4px 0 0;
}

.links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.links li {
  margin: 0;
  border-bottom: 1px solid var(--separator);
}

.links li:last-child { border-bottom: none; }

.links a {
  display: block;
  padding: 14px 0;
  font-weight: 500;
}

.links a span {
  display: block;
  color: var(--secondary);
  font-weight: 400;
  font-size: 15px;
}

/* FAQ */
details.faq {
  background: var(--card);
  border-radius: 12px;
  padding: 0 20px;
  margin: 10px 0;
}

details.faq summary {
  cursor: pointer;
  font-weight: 600;
  padding: 14px 0;
  list-style-position: outside;
}

details.faq[open] summary { border-bottom: 1px solid var(--separator); }
details.faq > :last-child { margin-bottom: 14px; }

/* Licenses */
.component {
  background: var(--card);
  border-radius: 12px;
  padding: 4px 20px 12px;
  margin: 16px 0;
}

.component h3 { margin-top: 14px; }

.component details { margin: 8px 0; }

.component details summary {
  cursor: pointer;
  color: var(--accent);
  font-weight: 500;
}

pre.license {
  background: var(--code-bg);
  border-radius: 8px;
  padding: 12px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 12.5px;
  line-height: 1.5;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

footer.site {
  color: var(--secondary);
  font-size: 14px;
  padding-top: 32px;
  padding-bottom: 40px;
}

footer.site nav a { margin-right: 14px; }

.center { text-align: center; }

h2.subtitle { margin-top: 0; font-weight: 500; color: var(--secondary); }

code { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 0.88em; }