/* ChaloChat website — one shared stylesheet. No external fonts or CDNs. */
:root {
  --bg: #FFFDF9;
  --bg-2: #F6F2EA;
  --border: #E8E1D4;
  --text: #17140F;
  --text-2: #6B655A;
  --accent: #B07F2E;
  --accent-ink: #8A6220;
  --accent-soft: #F5EAD3;
  --on-accent: #1A1408;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0E0F12;
    --bg-2: #16181D;
    --border: #262931;
    --text: #F5F1E8;
    --text-2: #A9A397;
    --accent: #E2B865;
    --accent-ink: #E2B865;
    --accent-soft: #2A2318;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--accent-ink); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }

.site-header, .site-footer, main {
  max-width: 760px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}
.site-header {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px;
  padding-top: 20px; padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; font-size: 20px; color: var(--text); text-decoration: none; letter-spacing: -0.01em; }
.brand span { color: var(--accent-ink); }
.site-header nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-header nav a { color: var(--text-2); text-decoration: none; font-size: 15px; }
.site-header nav a:hover, .site-header nav a[aria-current="page"] { color: var(--text); }

main { padding-top: 32px; padding-bottom: 48px; }
h1 { font-size: 32px; line-height: 1.2; margin: 0 0 8px; letter-spacing: -0.02em; }
h2 { font-size: 22px; line-height: 1.3; margin: 40px 0 8px; padding-top: 8px; }
h3 { font-size: 18px; margin: 24px 0 4px; }
p, ul, ol { margin: 0 0 14px; }
ul, ol { padding-left: 22px; }
li { margin-bottom: 6px; }
.updated { color: var(--text-2); font-size: 15px; margin-bottom: 24px; }
.lead { font-size: 19px; color: var(--text-2); }

.summary {
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 14px;
  padding: 18px 20px; margin: 24px 0;
}
.summary h2 { margin-top: 0; padding-top: 0; font-size: 18px; }
.summary ul { margin-bottom: 0; }

.toc { font-size: 15px; }
.toc ol { columns: 2; column-gap: 32px; }
@media (max-width: 560px) { .toc ol { columns: 1; } }

table { width: 100%; border-collapse: collapse; margin: 0 0 16px; font-size: 15px; }
th, td { text-align: left; vertical-align: top; padding: 10px 8px; border-bottom: 1px solid var(--border); }
th { color: var(--text-2); font-weight: 600; }
.table-wrap { overflow-x: auto; }

/* Landing */
.hero { text-align: center; padding: 48px 0 24px; }
.hero h1 { font-size: 44px; }
.hero .lead { max-width: 520px; margin: 0 auto 28px; }
.button {
  display: inline-block; padding: 14px 26px; border-radius: 999px;
  background: linear-gradient(135deg, #EED39A, #C99A45 55%, #9C6E22);
  color: var(--on-accent); font-weight: 600; text-decoration: none;
}
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin: 40px 0; }
.card { background: var(--bg-2); border: 1px solid var(--border); border-radius: 14px; padding: 18px; }
.card h2 { font-size: 17px; margin: 0 0 6px; padding: 0; }
.card p { margin: 0; color: var(--text-2); font-size: 15px; }

details { border-bottom: 1px solid var(--border); padding: 12px 0; }
summary { cursor: pointer; font-weight: 600; }
details > *:not(summary) { margin-top: 10px; }

.site-footer {
  border-top: 1px solid var(--border);
  padding-top: 20px; padding-bottom: 32px;
  color: var(--text-2); font-size: 14px;
}
.site-footer nav { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 8px; }
.site-footer a { color: var(--text-2); }

.app-icon { border-radius: 20px; }