:root {
  --bg: #fffdf7;
  --ink: #1f2a2e;
  --muted: #5b6b70;
  --accent: #e8672b;
  --accent-soft: #fde9dc;
  --line: #e9e2d3;
  --card: #ffffff;
  --max: 820px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Noto Sans Tamil", sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
}
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
header.site {
  border-bottom: 1px solid var(--line);
  background: var(--card);
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 16px; max-width: var(--max); margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); text-decoration: none; }
.brand .dot { width: 14px; height: 14px; border-radius: 50%; background: var(--accent); display: inline-block; }
nav a { margin-left: 18px; color: var(--muted); text-decoration: none; font-size: 15px; }
nav a:hover { color: var(--ink); text-decoration: underline; }
main { max-width: var(--max); margin: 0 auto; padding: 32px 16px 56px; }
.hero { padding: 24px 0 8px; }
.hero h1 { font-size: clamp(30px, 5vw, 44px); line-height: 1.15; margin: 0 0 10px; }
.hero .tamil { font-size: clamp(20px, 3.4vw, 26px); color: var(--muted); margin: 0 0 18px; }
.lead { font-size: 19px; color: var(--muted); max-width: 640px; }
.cta { display: inline-block; margin-top: 8px; padding: 12px 18px; border-radius: 10px; background: var(--accent); color: #fff; text-decoration: none; font-weight: 600; }
.cta:hover { filter: brightness(0.95); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; margin: 28px 0; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 18px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }
h2 { font-size: 24px; margin: 40px 0 10px; }
h3 { font-size: 19px; margin: 26px 0 6px; }
section p, section li { color: var(--ink); }
.note { background: var(--accent-soft); border-left: 4px solid var(--accent); padding: 12px 14px; border-radius: 8px; margin: 18px 0; }
.meta { color: var(--muted); font-size: 15px; }
table { border-collapse: collapse; width: 100%; margin: 12px 0; font-size: 15.5px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
footer.site { border-top: 1px solid var(--line); color: var(--muted); font-size: 14.5px; }
footer.site .wrap { max-width: var(--max); margin: 0 auto; padding: 20px 16px 28px; display: flex; flex-wrap: wrap; gap: 8px 22px; justify-content: space-between; }
footer.site a { color: var(--muted); }
code { background: #f3efe6; padding: 1px 5px; border-radius: 4px; font-size: 0.92em; }
@media (max-width: 520px) { nav a { margin-left: 12px; font-size: 14px; } }