/* Shared styles for About, Contact and Privacy pages */
:root {
  --bg: #e9f6f2; --card: #ffffff; --text: #1f2937; --muted: #4b5563;
  --green: #0a8f3d; --link: #047857; --line: #e5e7eb;
  --note-bg: #ecfdf5; --note-line: #6ee7b7;
}
* { box-sizing: border-box; }
html {
  color-scheme: light;
  -webkit-text-size-adjust: 100%;
  font-family: system-ui, -apple-system, "Segoe UI", "Noto Sans Bengali", "Nirmala UI",
    "Hind Siliguri", Roboto, sans-serif;
}
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.75; font-size: 1rem; }
a { color: var(--link); font-weight: 600; }
a:hover { color: #065f46; }
:focus-visible { outline: 3px solid var(--green); outline-offset: 2px; }

.wrap { max-width: 820px; margin: 0 auto; padding: 16px; }

/* language-specific bits inside shared header/footer */
html[lang="en"] .t-bn { display: none; }
html:not([lang="en"]) .t-en { display: none; }

.topbar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding: 8px 0 10px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.brand img { width: 44px; height: 44px; border-radius: 10px; }
.brand strong { font-size: 1.35rem; line-height: 1.25; }

.lang { display: flex; gap: 4px; padding: 4px; background: #d1e7df; border-radius: 12px; }
.lang button {
  min-height: 40px; min-width: 84px; border: none; border-radius: 9px; background: transparent;
  color: #134e3a; font: inherit; font-weight: 700; cursor: pointer;
}
.lang button[aria-pressed="true"] { background: var(--green); color: #fff; }

.pagenav { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 14px; }
.pagenav a {
  display: inline-flex; align-items: center; min-height: 40px; padding: 4px 16px; border-radius: 999px;
  border: 2px solid #cfd8dc; background: #fff; color: var(--green); text-decoration: none; font-weight: 700;
}
.pagenav a:hover { background: var(--note-bg); border-color: #34d399; }
.pagenav a[aria-current="page"] { background: var(--green); border-color: var(--green); color: #fff; }

.card { background: var(--card); border-radius: 16px; padding: 24px 22px 28px; box-shadow: 0 8px 30px rgba(0,0,0,.08); }
h1 { font-size: clamp(1.6rem, 5vw, 2.1rem); line-height: 1.3; margin: 0 0 4px; }
h2 { font-size: 1.25rem; line-height: 1.4; margin: 32px 0 8px; padding-top: 16px; border-top: 1px solid var(--line); color: #0f172a; }
h3 { font-size: 1.05rem; margin: 20px 0 4px; }
p { margin: 8px 0; }
ul, ol { margin: 8px 0; padding-left: 1.4rem; }
li { margin: 6px 0; }
.updated { color: var(--muted); font-size: 0.92rem; margin: 0 0 16px; }
.summary { background: var(--note-bg); border: 1px solid var(--note-line); border-radius: 12px; padding: 14px 18px; margin: 16px 0 8px; }
.summary p { margin: 0 0 6px; font-weight: 700; }
.summary ul { margin: 0; }
code { background: #f1f5f9; border-radius: 5px; padding: 1px 6px; font-size: 0.92em; word-break: break-all; }
.btn {
  display: inline-block; margin: 6px 8px 6px 0; padding: 10px 18px; min-height: 44px; border-radius: 10px;
  background: var(--green); color: #fff; text-decoration: none; font-weight: 700;
}
.btn:hover { background: #087a34; color: #fff; }
.btn.alt { background: #fff; color: var(--green); border: 2px solid var(--green); }
.btn.alt:hover { background: var(--note-bg); color: var(--green); }
.back { display: inline-block; margin-top: 24px; }

.sitefoot { text-align: center; color: var(--muted); font-size: 0.92rem; padding: 20px 8px 28px; }
.sitefoot nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 18px; margin-bottom: 8px; }

@media (max-width: 520px) {
  .card { padding: 18px 16px 22px; }
  .lang button { min-width: 72px; }
}