/* Modern, accessible styles for the static site */
:root {
  --bg: #ffffff;
  --fg: #222222;
  --muted: #5a5a5a;
  --brand: #0f57fb;
  --brand-contrast: #0040d4;
  --container: 1080px;
  --surface: #f8f9fb;
  --border: #e8e8e8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116;
    --fg: #e6e6e6;
    --muted: #a0a0a0;
    --brand: #6da3ff;
    --brand-contrast: #96bdff;
    --surface: #151922;
    --border: #232737;
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, Noto Sans Devanagari, sans-serif;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; border-radius: 8px; }

h1, h2, h3 { line-height: 1.25; color: var(--fg); }
h1 { font-size: clamp(28px, 4vw, 40px); margin: 0 0 12px; }
h2 { font-size: clamp(22px, 3.2vw, 28px); margin: 0 0 10px; }
h3 { font-size: clamp(18px, 2.6vw, 22px); margin: 0 0 8px; }

blockquote { margin: 16px 0; padding: 12px 16px; background: var(--surface); border-left: 4px solid var(--brand); border-radius: 8px; }
blockquote p { margin: 0 0 6px; }
blockquote cite { font-style: normal; color: var(--muted); }

.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header .wrap,
.site-footer .wrap,
main .wrap { max-width: var(--container); margin: 0 auto; padding: 16px; }

.brand-row { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 12px; }
.brand {
  font-weight: 700;
  font-size: 20px;
  color: var(--fg);
}
.tagline { color: var(--muted); font-size: 13px; }

.nav { display: flex; gap: 6px; flex-wrap: wrap; }
.nav a { padding: 8px 10px; border-radius: 8px; color: var(--fg); }
.nav a[aria-current="page"], .nav a.active { background: var(--brand); color: #fff; }
.button { display: inline-block; padding: 10px 14px; border-radius: 10px; background: var(--brand); color: #fff; }
.button:hover { background: var(--brand-contrast); text-decoration: none; }

.brand-col { display: grid; gap: 2px; }
.nav-toggle { display: none; background: transparent; border: 1px solid var(--border); border-radius: 8px; padding: 6px 10px; color: var(--fg); }
.nav-toggle:focus { outline: 3px solid var(--brand); outline-offset: 2px; }

.skip-link { position: absolute; left: -999px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.skip-link:focus { left: 16px; top: 12px; width: auto; height: auto; padding: 8px 12px; background: var(--brand); color: #fff; border-radius: 8px; z-index: 100; }

.hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 24px; align-items: center; padding: 24px 16px; }
.hero h1 { margin: 0 0 8px; line-height: 1.25; font-size: clamp(24px, 3.2vw, 36px); }
.muted { color: var(--muted); }

.section { padding: 32px 16px; border-top: 1px solid var(--border); background: transparent; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; align-items: start; }

img { max-width: 100%; height: auto; display: block; border-radius: 6px; }

.site-footer { border-top: 1px solid var(--border); background: var(--surface); }
.site-footer p { margin: 6px 0; }
.copyright { text-align: center; color: var(--muted); font-size: 13px; padding: 12px 0 20px; }

@media (max-width: 800px) {
  .brand-row { grid-template-columns: 1fr auto; }
  .nav-toggle { display: inline-block; }
  .nav { display: none; grid-column: 1 / -1; padding-top: 8px; }
  .nav.open { display: flex; flex-direction: column; gap: 8px; }
  .nav a { padding: 10px 12px; background: transparent; border: 1px solid var(--border); }
  .hero { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}