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#00000047}.paywall-head{align-items:center;gap:12px;margin-bottom:12px;display:flex}.paywall-head h2{flex:1;margin:0;font-size:1.35rem;font-weight:800}.paywall-x{cursor:pointer;background:#0000000f;border:0;border-radius:999px;width:32px;height:32px;font-size:1.1rem;font-weight:700}.paywall-body{margin:0 0 16px;font-size:1rem}.paywall-unlock{cursor:pointer;color:#000;background:#ffd400;border:0;border-radius:14px;width:100%;height:52px;margin-bottom:8px;font-size:1.05rem;font-weight:700}.paywall-unlock:disabled{opacity:.7}.paywall-restore{cursor:pointer;width:100%;height:44px;color:var(--ink);background:0 0;border:0;font-weight:600}.paywall-notnow{cursor:pointer;color:#6b7280;background:0 0;border:0;width:100%;margin-top:4px;padding:8px}.paywall-note{color:#6b7280;margin:8px 0 0;font-size:.85rem}.formulas-sheet{z-index:35;background:#00000059;justify-content:center;align-items:flex-end;display:flex;position:fixed;inset:0}.formulas-panel{background:#d6d8dc;border-radius:20px 20px 0 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#ffffff59;border-radius:999px;font-family:ui-rounded,SF Pro Rounded,system-ui,-apple-system,sans-serif;font-size:16px;font-weight:800;line-height:1.1;color:#1b1d22!important;padding:4px 8px!important}@media (width<=430px){.lesson-col{gap:6px;padding:6px 10px 4px}.formula-strip-slot{height:48px}}@media (width>=900px){.lesson-col{max-width:430px}}.caption-pill{color:#1b1d22;pointer-events:none;z-index:4;background:#ffffffe0;border-radius:999px;padding:6px 14px;font-size:14px;font-weight:700;position:absolute;bottom:12%;left:50%;transform:translate(-50%);box-shadow:0 2px 8px #00000024}