/* FIX2812: responsive access invitation; styling is independent of the global header. */
.nga2812-gate-backdrop[hidden]{display:none!important}
.nga2812-gate-backdrop{position:fixed;inset:0;z-index:12020;background:rgba(7,22,48,.57);display:grid;place-items:center;padding:16px;overflow-y:auto;box-sizing:border-box}
.nga2812-gate-card{position:relative;outline:none;background:#fff;border:1px solid #dbe6f3;box-shadow:0 24px 72px rgba(5,30,65,.28);border-radius:18px;width:min(100%,440px);padding:28px;box-sizing:border-box;max-height:calc(100dvh - 32px);overflow:auto;color:#102d54}
.nga2812-gate-kicker{display:block;font-size:10px;letter-spacing:.13em;font-weight:850;color:#155bab;margin-bottom:12px}
.nga2812-gate-lock{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:#eaf3ff;font-size:20px;margin-bottom:12px}
.nga2812-gate-card h2{font-size:clamp(19px,2vw,24px);line-height:1.3;margin:0 28px 10px 0;color:#092951}
.nga2812-gate-card p{font-size:14px;line-height:1.6;color:#526780;margin:0 0 18px}
.nga2812-gate-close{position:absolute;right:16px;top:13px;border:0;background:transparent;cursor:pointer;width:38px;height:38px;font-size:27px;line-height:1;color:#61748e}
.nga2812-gate-actions{display:grid;gap:9px}
.nga2812-gate-primary,.nga2812-gate-secondary{display:grid;place-items:center;min-height:44px;padding:10px 15px;text-decoration:none!important;border-radius:10px;font-size:14px;font-weight:800;text-align:center;box-sizing:border-box}
.nga2812-gate-primary{background:#1661df;color:#fff!important}
.nga2812-gate-secondary{border:1px solid #c1d2e6;color:#174a8d!important;background:#f9fbff}
.nga2812-gate-text-link{font-size:13px;font-weight:700;color:#1858a8;text-align:center;padding:5px}
.nga2812-gate-later{border:0;background:transparent;color:#677990;cursor:pointer;padding:8px;font-family:inherit;font-size:13px;font-weight:600}
body.nga2812-dialog-open{overflow:hidden}
.nga2812-gate-backdrop :focus-visible{outline:3px solid #3987ed;outline-offset:3px}
@media(max-width:700px){
 .nga2812-gate-backdrop{display:flex;align-items:flex-end;justify-content:center;padding:0}
 .nga2812-gate-card{width:100%;max-height:calc(100dvh - 8px);border-radius:18px 18px 0 0;padding:22px 18px max(18px,env(safe-area-inset-bottom));}
 .nga2812-gate-card h2{font-size:20px}
}
@media(prefers-reduced-motion:reduce){.nga2812-gate-backdrop,.nga2812-gate-card{scroll-behavior:auto}}

/* FIX2813: visible fallback for native PDF iframe and short lesson previews. */
.nga2813-continue{display:flex;align-items:center;justify-content:flex-start;margin:16px 0 8px}
.nga2813-continue-button{appearance:none;display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 18px;border:1px solid #bed2ed;border-radius:10px;background:#eff6ff;color:#144d9b;font-family:inherit;font-weight:750;font-size:14px;line-height:1.4;cursor:pointer;text-align:center}
.nga2813-continue-button:hover,.nga2813-continue-button:focus-visible{background:#e0eeff;outline-offset:2px}
@media(max-width:700px){.nga2813-continue-button{width:100%}}