/* ============================================================
   site.css — BusinessBI нэгдсэн дизайн токен + nav + footer
   ------------------------------------------------------------
   Бүх олон нийтийн хуудас энэ файлыг ачаална. Палитр: цагаан суурь,
   ногоон (#216a4c) гол өнгө, алт (#b8862f) тодотгол, Inter үсэг.
   Nav/footer-ийн markup-ийг site.js оруулна — энд зөвхөн загвар.
   ============================================================ */
:root{
  --bbi-green:#216a4c; --bbi-green-dark:#1a4d38; --bbi-green-bright:#2e8b62; --bbi-green-soft:#eaf3ee;
  --bbi-gold:#b8862f; --bbi-gold-soft:#faf3e4;
  --bbi-ink:#1a2b25; --bbi-ink-soft:#3c4a44; --bbi-muted:#6b7670;
  --bbi-line:#e3e7e4; --bbi-line-soft:#eef1ef; --bbi-bg:#f6f8f7; --bbi-card:#ffffff;
  --bbi-danger:#c0492b;
  --bbi-radius:12px;
  --bbi-shadow:0 1px 3px rgba(20,40,30,.05), 0 6px 20px rgba(20,40,30,.04);
  --bbi-font:'Inter','Helvetica Neue',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
}
.bbi-nav *, .bbi-footer *{box-sizing:border-box}

/* ── NAV ─────────────────────────────────────────────────── */
.bbi-nav{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--bbi-line);font-family:var(--bbi-font)}
.bbi-nav-in{max-width:1480px;margin:0 auto;padding:0 28px;height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.bbi-logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--bbi-ink);font-size:22px;font-weight:800;letter-spacing:-.02em;white-space:nowrap;line-height:1}
.bbi-logo b{color:var(--bbi-green);font-weight:800}
.bbi-logo-sub{font-size:14px;font-weight:600;color:var(--bbi-muted);padding-left:12px;border-left:1px solid var(--bbi-line);letter-spacing:0}
.bbi-menu{display:flex;align-items:center;gap:26px}
.bbi-menu a{text-decoration:none;color:var(--bbi-ink-soft);font-size:14.5px;font-weight:500;transition:color .15s;white-space:nowrap}
.bbi-menu a:hover,.bbi-menu a.active{color:var(--bbi-green)}
.bbi-menu a.active{font-weight:600}
.bbi-nav-right{display:flex;align-items:center;gap:10px}
.bbi-login{display:inline-flex;align-items:center;gap:7px;text-decoration:none;color:var(--bbi-ink);font-size:14px;font-weight:600;border:1.5px solid var(--bbi-line);border-radius:50px;padding:8px 14px;background:#fff;cursor:pointer;transition:.15s;white-space:nowrap;max-width:200px;overflow:hidden;text-overflow:ellipsis}
.bbi-login:hover{border-color:var(--bbi-green);color:var(--bbi-green)}
.bbi-login svg{width:17px;height:17px;flex-shrink:0}
.bbi-cta{display:inline-flex;align-items:center;text-decoration:none;background:var(--bbi-green);color:#fff;font-size:14px;font-weight:600;padding:9px 18px;border-radius:50px;transition:background .15s;white-space:nowrap}
.bbi-cta:hover{background:var(--bbi-green-dark);color:#fff}
.bbi-burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.bbi-burger span{display:block;width:24px;height:2px;background:var(--bbi-ink);transition:.3s}
.bbi-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.bbi-burger.open span:nth-child(2){opacity:0}
.bbi-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.bbi-menu a.bbi-admin{color:var(--bbi-gold);font-weight:700}
@media(max-width:960px){
  .bbi-nav-in{padding:0 18px}
  .bbi-logo-sub{display:none}
  .bbi-menu{position:fixed;top:64px;left:0;right:0;background:#fff;flex-direction:column;gap:0;align-items:stretch;padding:8px 0 12px;transform:translateY(-130%);transition:transform .3s;border-bottom:1px solid var(--bbi-line);box-shadow:0 12px 30px -18px rgba(0,0,0,.3);z-index:999}
  .bbi-menu.open{transform:translateY(0)}
  .bbi-menu a{padding:13px 24px;font-size:16px}
  .bbi-nav-right .bbi-cta{display:none}
  .bbi-menu a.bbi-cta{display:block;margin:8px 24px 0;text-align:center;border-radius:8px;color:#fff}
  .bbi-burger{display:flex}
}
@media(min-width:961px){ .bbi-menu a.bbi-cta{display:none} }

/* ── CTA band (хэрэгслийн хуудсуудын доод хэсэг) ────────── */
.bbi-band{background:var(--bbi-green-dark);color:#fff;padding:44px 20px;text-align:center;font-family:var(--bbi-font)}
.bbi-band .k{margin:0 0 6px;font-size:12px;letter-spacing:.1em;text-transform:uppercase;opacity:.7}
.bbi-band h2{margin:0 0 10px;font-size:26px;font-weight:700;color:#fff}
.bbi-band p{margin:0 auto 18px;max-width:560px;opacity:.85;font-size:15px;line-height:1.5}
.bbi-band a{display:inline-block;background:#fff;color:var(--bbi-green-dark);font-weight:600;padding:12px 26px;border-radius:8px;text-decoration:none}

/* ── FOOTER ──────────────────────────────────────────────── */
.bbi-footer{background:#0f2a1f;color:#cfd8d2;font-family:var(--bbi-font);margin-top:0}
.bbi-footer-in{max-width:1480px;margin:0 auto;padding:52px 28px 26px}
.bbi-foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.bbi-footer .bbi-logo{color:#fff;font-size:22px}
.bbi-footer .bbi-logo b{color:#8fcdb1}
.bbi-foot-tag{color:#9fb3a8;margin:14px 0 0;max-width:34ch;font-size:14px;line-height:1.6}
.bbi-foot-col h5{color:#fff;font-size:12px;letter-spacing:.12em;text-transform:uppercase;margin:0 0 14px;font-weight:700}
.bbi-foot-col a{display:block;color:#cfd8d2;text-decoration:none;font-size:14px;margin-bottom:10px;transition:color .15s}
.bbi-foot-col a:hover{color:#fff}
.bbi-foot-col .bbi-price{color:#8fcdb1;font-size:12px;margin-left:6px}
.bbi-foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:34px;padding-top:18px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12.5px;color:#9fb3a8}
.bbi-foot-bottom a{color:#9fb3a8;text-decoration:none;margin-left:16px}
.bbi-foot-bottom a:hover{color:#fff}
@media(max-width:900px){ .bbi-foot-grid{grid-template-columns:1fr 1fr} }
@media(max-width:560px){ .bbi-foot-grid{grid-template-columns:1fr} .bbi-footer-in{padding:40px 20px 22px} }

/* ── Ерөнхий туслах классууд (шинэ хуудсуудад) ─────────── */
.bbi-page{font-family:var(--bbi-font);color:var(--bbi-ink);background:var(--bbi-bg);-webkit-font-smoothing:antialiased;line-height:1.6}
.bbi-wrap{max-width:1180px;margin:0 auto;padding:0 28px}
.bbi-hero{padding:64px 0 40px}
.bbi-eyebrow{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--bbi-gold);font-weight:700;margin:0 0 14px}
.bbi-hero h1{font-size:clamp(32px,5vw,52px);line-height:1.08;letter-spacing:-.02em;margin:0 0 16px;font-weight:800}
.bbi-hero h1 em{font-style:normal;color:var(--bbi-green)}
.bbi-lede{font-size:18px;color:var(--bbi-ink-soft);max-width:60ch;margin:0}
.bbi-card{background:#fff;border:1px solid var(--bbi-line);border-radius:var(--bbi-radius);padding:24px;box-shadow:var(--bbi-shadow)}
.bbi-btn{display:inline-flex;align-items:center;gap:8px;background:var(--bbi-green);color:#fff;text-decoration:none;font-weight:600;padding:12px 22px;border-radius:10px;border:none;cursor:pointer;font-size:15px;font-family:var(--bbi-font);transition:.15s}
.bbi-btn:hover{background:var(--bbi-green-dark);color:#fff}
.bbi-btn.ghost{background:#fff;color:var(--bbi-green);border:1.5px solid var(--bbi-green)}
.bbi-btn.ghost:hover{background:var(--bbi-green-soft)}
.bbi-prose{max-width:760px;font-size:16px;line-height:1.75;color:var(--bbi-ink-soft)}
.bbi-prose h2{font-size:22px;color:var(--bbi-ink);margin:38px 0 10px;font-weight:700}
.bbi-prose h3{font-size:17px;color:var(--bbi-ink);margin:26px 0 8px;font-weight:700}
.bbi-prose p{margin:0 0 14px}
.bbi-prose ul,.bbi-prose ol{margin:0 0 14px;padding-left:22px}
.bbi-prose li{margin-bottom:6px}
.bbi-prose a{color:var(--bbi-green);font-weight:600}
.bbi-note{font-size:13px;color:var(--bbi-muted);background:var(--bbi-green-soft);border:1px solid #cfe3d7;border-radius:10px;padding:12px 16px}