:root {
  --bg: #F4F8F5; --card: #FFFFFF; --text: #10221A; --muted: #4F6B5D;
  --primary: #0E7C57; --gold: #A8801A; --border: #D8E6DD; --warn-bg: #FFF7E0; --warn-border: #E3B341;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #09130E; --card: #10221A; --text: #E8F5E9; --muted: #A3C9B3;
    --primary: #10B981; --gold: #D4AF37; --border: #1D3A2C; --warn-bg: #2A2208; --warn-border: #8A6D1C; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.65;
  font-family: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans Bengali", sans-serif; }
.wrap { max-width: 880px; margin: 0 auto; padding: 24px; }
.wrap.narrow { max-width: 760px; padding: 40px 24px 96px; }
header.site { display: flex; align-items: center; gap: 12px; padding: 16px 0; }
header.site a { display: flex; align-items: center; gap: 12px; text-decoration: none; color: inherit; }
header.site img { width: 40px; height: 40px; border-radius: 10px; }
.brand { font-weight: 700; font-size: 18px; }
.hero { text-align: center; padding: 56px 0 40px; }
.hero img { width: 96px; height: 96px; border-radius: 24px; margin-bottom: 24px; }
h1 { font-family: Georgia, "Cormorant Garamond", serif; font-size: 44px; line-height: 1.12; margin: 0 0 16px; font-weight: 600; }
h2 { font-family: Georgia, "Cormorant Garamond", serif; font-size: 26px; margin: 40px 0 12px; font-weight: 600; }
h3 { font-size: 18px; margin: 24px 0 8px; }
.tagline { font-size: 19px; color: var(--muted); max-width: 640px; margin: 0 auto 32px; }
.cta { display: inline-block; background: var(--primary); color: #fff; text-decoration: none;
  padding: 14px 28px; border-radius: 14px; font-weight: 600; }
.cta.alt { background: transparent; color: var(--primary); border: 1px solid var(--primary); margin-left: 8px; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin: 40px 0; }
.feature, .card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 22px; }
.feature .ic { font-size: 28px; }
.feature h3 { margin: 10px 0 6px; }
.feature p { margin: 0; color: var(--muted); font-size: 15px; }
.card { margin: 20px 0; }
.notice { background: var(--warn-bg); border: 1px solid var(--warn-border); border-radius: 14px; padding: 16px 20px; margin: 32px 0; font-size: 15px; }
.meta { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
a { color: var(--primary); }
table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; background: var(--card); }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
ul { padding-left: 20px; } li { margin: 6px 0; }
footer.site { border-top: 1px solid var(--border); margin-top: 48px; padding: 28px 0; text-align: center; color: var(--muted); font-size: 14px; }
footer.site a { margin: 0 10px; }
@media (max-width: 520px) { h1 { font-size: 34px; } .cta.alt { margin: 12px 0 0; } }