:root{--ink:#0b1730;--muted:#5f6b7a;--line:#dfe6ee;--soft:#f5f8fb;--white:#fff;--blue:#0969da;--blue2:#0a84ff;--green:#16a085;--navy:#071a38;--radius:20px;--shadow:0 18px 50px rgba(8,30,66,.09)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;line-height:1.6;background:#fff}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}.container{width:min(1180px,calc(100% - 40px));margin:auto}.narrow{width:min(780px,calc(100% - 40px))}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(16px);border-bottom:1px solid rgba(223,230,238,.85)}.header-row{min-height:78px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:10px;margin-right:auto}.brand .custom-logo{max-height:48px;width:auto}.brand-mark{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--blue),#22b8cf);color:#fff;font-weight:900;font-size:24px}.brand b{display:block;letter-spacing:.06em}.brand small{display:block;color:var(--muted);font-size:10px}.primary-nav ul,.menu{display:flex;gap:24px;list-style:none;margin:0;padding:0}.primary-nav a{font-size:14px;font-weight:700;color:#25364f}.header-actions{display:flex;gap:10px}.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:9px;padding:8px 11px}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:11px;padding:12px 18px;font-weight:800;border:1px solid transparent;transition:.2s}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 24px 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0;color:#b8c9de;font-size:14px}.site-footer p{color:#94aac3}.footer-bottom{margin-top:45px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;color:#7f97b2;font-size:12px}.pagination{margin-top:40px}.page-numbers{display:inline-block;padding:8px 12px;border:1px solid var(--line);border-radius:8px;margin-right:5px}.current.page-numbers{background:var(--blue);color:#fff}.post-card{padding:24px 0;border-bottom:1px solid var(--line)}@media(max-width:950px){.primary-nav,.header-actions{display:none}.primary-nav.is-open{display:block;position:absolute;left:20px;right:20px;top:78px;background:#fff;border:1px solid var(--line);padding:18px;border-radius:14px;box-shadow:var(--shadow)}.primary-nav.is-open 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/* ELEARNZ official logo */
.brand .elearnz-bundled-logo,
.brand .custom-logo {
  display: block;
  width: auto;
  height: 64px;
  max-width: 260px;
  object-fit: contain;
}
@media (max-width: 720px) {
  .brand .elearnz-bundled-logo,
  .brand .custom-logo {
    height: 48px;
    max-width: 190px;
  }
}