/* Public SEO pages (backend/src/routes/public-pages.js): plain HTML, no React.
   Same dark look as the portals; small on purpose so the text shows at once. */
:root { --bg:#0B1020; --card:#141A30; --card2:#1A2140; --text:#E2E8F0; --muted:#94A3B8; --line:rgba(255,255,255,.09); --primary:#3B82F6; --primary2:#60A5FA; --ok:#22C55E; --warn:#FBBF24; }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.7 'Hind Siliguri', 'Noto Sans Bengali', 'Nirmala UI', 'Plus Jakarta Sans', system-ui, sans-serif; }
a { color: var(--primary2); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
code { background: rgba(255,255,255,.08); border: 1px solid var(--line); padding: 1px 7px; border-radius: 6px; font-weight: 700; color: #FDE68A; }

.sx-top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 16px; background: rgba(11,16,32,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.sx-brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 800; line-height: 1.15; }
.sx-brand:hover { text-decoration: none; }
.sx-brand img { border-radius: 10px; }
.sx-brand small { display: block; font-weight: 500; font-size: 12px; color: var(--muted); }
.sx-nav { display: flex; align-items: center; gap: 14px; font-size: 14.5px; font-weight: 600; }
.sx-nav a:not(.sx-btn) { color: var(--text); }

.sx-main { max-width: 1040px; margin: 0 auto; padding: 14px 16px 40px; }
.sx-crumbs { font-size: 13px; color: var(--muted); margin: 4px 0 14px; }
.sx-crumbs a { color: var(--muted); }
.sx-crumbs i { font-style: normal; opacity: .6; margin: 0 2px; }
h1 { font-size: clamp(24px, 4.6vw, 34px); line-height: 1.3; margin: 6px 0 10px; letter-spacing: -.01em; }
h2 { font-size: clamp(19px, 3.4vw, 23px); line-height: 1.35; margin: 30px 0 12px; }
h2 a { color: var(--text); }
h3 { font-size: 17px; margin: 18px 0 4px; color: var(--primary2); }
p { margin: 0 0 12px; }
.sx-lead { font-size: 16.5px; color: #CBD5E1; }
.sx-meta { color: var(--muted); font-size: 14px; margin: 0 0 10px; }
.sx-small { font-size: 13.5px; color: var(--muted); }

.sx-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 22px; border-radius: 12px; background: var(--primary); color: #fff; font-weight: 700; font-size: 16px; }
.sx-btn:hover { text-decoration: none; filter: brightness(1.08); }
.sx-btn-sm { padding: 7px 14px; font-size: 14px; border-radius: 10px; }
.sx-badge { display: inline-block; font-size: 12.5px; font-weight: 700; padding: 2px 10px; border-radius: 99px; background: rgba(59,130,246,.16); color: var(--primary2); }

.sx-note { background: var(--card); border: 1px solid rgba(251,191,36,.35); border-radius: 12px; padding: 12px 14px; margin: 14px 0; }
.sx-note-ok { border-color: rgba(34,197,94,.45); }

.sx-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.sx-card { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; color: var(--text); }
.sx-card:hover { text-decoration: none; border-color: rgba(96,165,250,.45); }
.sx-card img, .sx-card .sx-ph { aspect-ratio: 16 / 9; width: 100%; object-fit: cover; background: var(--card2); }
.sx-card-b { display: flex; flex-direction: column; gap: 4px; padding: 10px 12px 12px; }
.sx-card-b b { font-size: 15.5px; line-height: 1.4; }
.sx-card-b small { color: var(--muted); font-size: 13px; }
.sx-card-p { margin-top: 2px; font-weight: 800; color: var(--primary2); }
.sx-free { color: var(--ok); }

.sx-hero { display: grid; gap: 18px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 14px; }
.sx-hero-img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 12px; background: var(--card2); }
.sx-hero-b h1 { margin-top: 8px; }
.sx-price { font-size: 26px; font-weight: 800; margin: 6px 0; }
.sx-price s { color: var(--muted); font-size: 18px; font-weight: 600; }
.sx-price small { font-size: 15px; color: var(--muted); }
.sx-code { margin: 0 0 12px; }
@media (min-width: 820px) { .sx-hero { grid-template-columns: 1.15fr 1fr; align-items: center; padding: 18px; } }

.sx-list { padding-left: 22px; margin: 0 0 8px; }
.sx-list li { margin: 4px 0; }
.sx-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.sx-tags span { background: var(--card); border: 1px solid var(--line); border-radius: 99px; padding: 3px 12px; font-size: 14px; }

.sx-acc { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; margin: 8px 0; }
.sx-acc summary { cursor: pointer; list-style: none; }
.sx-acc summary::-webkit-details-marker { display: none; }
.sx-acc summary::before { content: '+'; display: inline-block; width: 18px; color: var(--primary2); font-weight: 800; }
.sx-acc[open] summary::before { content: '–'; }
.sx-acc summary small { color: var(--muted); margin-left: 6px; }
.sx-acc p { margin: 8px 0 2px; }
.sx-ch { margin: 10px 0 0 18px; }
.sx-ch ul { margin: 4px 0 0; padding-left: 20px; color: #CBD5E1; font-size: 15px; }

.sx-tbl { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; margin: 6px 0 8px; font-size: 15px; }
caption { text-align: left; color: var(--muted); font-size: 13.5px; margin-bottom: 6px; }
th, td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: var(--card); }

.sx-foot { border-top: 1px solid var(--line); margin-top: 30px; padding: 22px 16px 80px; color: var(--muted); font-size: 14px; }
.sx-foot-cols { max-width: 1040px; margin: 0 auto; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.sx-foot b { color: var(--text); }
.sx-copy { max-width: 1040px; margin: 16px auto 0; font-size: 13px; }

@media (max-width: 640px) {
  .sx-nav { gap: 10px; font-size: 13.5px; }
  .sx-brand small { display: none; }
  .sx-main { padding: 10px 12px 30px; }
  .sx-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .sx-card-b { padding: 8px 9px 10px; }
  .sx-card-b b { font-size: 14px; }
}
@media (max-width: 360px) { .sx-grid { grid-template-columns: 1fr; } }

/* WhatsApp contact button, bottom right */
.sx-wa { position: fixed; right: 14px; bottom: 16px; z-index: 6; display: inline-flex; align-items: center; gap: 6px; padding: 10px 16px; border-radius: 99px; background: #25D366; color: #06210F; font-weight: 800; font-size: 14.5px; box-shadow: 0 8px 22px rgba(0,0,0,.35); }
.sx-wa:hover { text-decoration: none; filter: brightness(1.05); }