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50vw)}.video-wrapper[data-astro-cid-bis722gi] iframe[data-astro-cid-bis722gi]{border-radius:0}}.content[data-astro-cid-bis722gi]{line-height:1.8}.content[data-astro-cid-bis722gi] h2{text-transform:uppercase;color:#101112;letter-spacing:.03em;margin:2.5rem 0 .75rem;font-size:1.25rem;font-weight:700}.content[data-astro-cid-bis722gi] h3{color:#101112;margin:2rem 0 .5rem;font-size:1.1rem;font-weight:700}.content[data-astro-cid-bis722gi] p{color:#555;margin-bottom:1rem;font-size:1.1rem}.content[data-astro-cid-bis722gi] li{color:#555;margin-bottom:.35rem;padding-left:1.25rem;font-size:1.1rem;list-style:outside}.content[data-astro-cid-bis722gi] img{border-radius:8px;max-width:100%;height:auto;margin:1rem 0}.lesson-footer[data-astro-cid-bis722gi]{border-top:1px solid var(--border);margin-top:3rem;padding-top:2rem}.mark-btn[data-astro-cid-bis722gi]{background:var(--accent);color:#fff;text-transform:uppercase;letter-spacing:.03em;cursor:pointer;border:none;border-radius:8px;width:100%;margin-bottom:2rem;padding:1rem 2rem;font-size:1rem;font-weight:700;transition:background .2s,opacity .2s;display:block}@media (hover:hover){.mark-btn[data-astro-cid-bis722gi]:hover:not(:disabled){background:var(--accent-hover)}}.mark-btn[data-astro-cid-bis722gi]:disabled{cursor:default}.mark-btn[data-astro-cid-bis722gi].completed,.mark-btn[data-astro-cid-bis722gi].completed:active{opacity:1;background:#2d8a4e}@media (hover:hover){.mark-btn[data-astro-cid-bis722gi].completed:hover{background:#1f6b3b}}.lesson-nav[data-astro-cid-bis722gi]{flex-wrap:wrap;justify-content:space-between;gap:1rem;display:flex}.nav-link[data-astro-cid-bis722gi]{color:var(--muted);font-size:.9rem;font-weight:600;text-decoration:none;transition:color .2s}.nav-link[data-astro-cid-bis722gi]:hover{color:#101112}.nav-link[data-astro-cid-bis722gi].next{margin-left:auto}.cart-toast[data-astro-cid-bis722gi]{color:#fff;z-index:1000;pointer-events:none;background:#1a1a1a;border-radius:12px;align-items:center;gap:.65rem;max-width:90vw;padding:.85rem 1.5rem;font-size:.9rem;transition:opacity .3s,transform .3s;display:flex;position:fixed;bottom:2rem;left:50%;transform:translate(-50%);box-shadow:0 4px 20px #0003}.cart-toast[data-astro-cid-bis722gi].hidden{opacity:0;pointer-events:none;transform:translate(-50%)translateY(1rem)}.toast-icon[data-astro-cid-bis722gi]{color:#000;background:#22c55e;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:22px;height:22px;font-size:.75rem;font-weight:700;display:flex}