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*,:before,:after{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:var(--font-body);-webkit-font-smoothing:antialiased;font-size:15px;line-height:1.5}h1,h2,h3,h4,.num{font-family:var(--font-heading);letter-spacing:-.01em;margin:0}h1{font-size:22px;font-weight:700}h2{font-size:18px;font-weight:600}h3{font-size:16px;font-weight:600}p{margin:0}a{color:inherit}.muted{color:var(--text-muted)}.small{font-size:13px}.mono{word-break:break-all;font-family:ui-monospace,Consolas,monospace;font-size:12px}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.btn{justify-content:center;align-items:center;gap:var(--space-2);min-height:44px;padding:0 var(--space-4);font:600 15px var(--font-body);border-radius:var(--radius-md);cursor:pointer;white-space:nowrap;text-decoration:none;transition:filter .15s,background 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var(--border);color:inherit;text-decoration:none;display:flex}.list-item:last-child{border-bottom:0}a.list-item:hover{background:var(--surface-2)}.toolbar{gap:var(--space-2);flex-direction:column;display:flex}.choice-grid{gap:var(--space-3);grid-template-columns:1fr;display:grid}.choice{gap:var(--space-3);text-align:left;width:100%;padding:var(--space-4);border:2px solid var(--border);border-radius:var(--radius-lg);background:var(--surface);color:var(--text);font:inherit;cursor:pointer;align-items:flex-start;display:flex}.choice[aria-pressed=true],.choice[aria-checked=true]{border-color:var(--primary)}.switch-row{justify-content:space-between;align-items:center;gap:var(--space-3);display:flex}.switch{appearance:none;background:var(--border);cursor:pointer;border-radius:99px;flex-shrink:0;width:44px;height:26px;transition:background .15s;position:relative}.switch:after{content:"";width:20px;height:20px;box-shadow:var(--shadow-sm);background:#fff;border-radius:50%;transition:transform 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0;border:0;text-decoration:none;display:flex}.lesson-btn[aria-current=page]{background:var(--surface-2);font-weight:600}.lesson-btn .done{color:var(--success)}.video-bleed{margin:0 calc(var(--space-4) * -1);width:auto}.desktop-only{display:none}.editor-split{gap:var(--space-4);flex-direction:column;display:flex}.editor-config,.editor-preview{min-width:0}.preview-frame{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--bg);width:100%;height:75dvh;display:block}.hide-mobile{display:none}.co{max-width:460px;padding:var(--space-4);margin:0 auto}.co-embed{padding:2px}.bump{border:2px dashed var(--accent);border-radius:var(--radius-lg);padding:var(--space-4);gap:var(--space-3);cursor:pointer;background:var(--surface);display:flex}.bump input{width:22px;height:22px;accent-color:var(--accent);flex-shrink:0;margin-top:2px}.total{justify-content:space-between;align-items:baseline;font-weight:600;display:flex}.total .num{font-size:22px}.pix-qr{border:1px solid var(--border);border-radius:var(--radius-lg);background:#fff;width:220px;max-width:70vw;margin:0 auto;padding:8px;display:block}.pix-qr svg{width:100%;height:auto;display:block}.pix-code{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface-2);width:100%;color:var(--text-muted);word-break:break-all;resize:none;padding:10px 12px;font:12px/1.4 ui-monospace,Consolas,monospace}.pix-wait{gap:var(--space-2);color:var(--text-muted);justify-content:center;align-items:center;font-size:14px;display:flex}.pix-dot{background:var(--warning);border-radius:50%;flex-shrink:0;width:10px;height:10px;animation:1.2s ease-in-out infinite pulse-dot}@keyframes pulse-dot{50%{opacity:.25;transform:scale(.7)}}.kicker{letter-spacing:.12em;text-transform:uppercase;color:var(--text-muted);font-size:12px;font-weight:700}.amount{font-family:var(--font-heading);font-size:30px;font-weight:700}.center{text-align:center}@media (min-width:640px){.grid{grid-template-columns:1fr 1fr}.grid-stats{grid-template-columns:repeat(3,1fr)}.choice-grid{grid-template-columns:1fr 1fr}.toolbar{flex-direction:row;align-items:center}h1{font-size:26px}}@media (min-width:960px){.shell{padding-bottom:0;padding-left:232px}.bottom-nav{display:none}.side-nav{gap:var(--space-1);z-index:30;width:232px;padding:var(--space-4);background:var(--surface);border-right:1px solid var(--border);flex-direction:column;display:flex;position:fixed;top:0;bottom:0;left:0}.side-nav .brand{padding:var(--space-2) var(--space-3) var(--space-6)}.side-nav .nav-item{justify-content:flex-start;gap:var(--space-3);min-height:44px;padding:0 var(--space-3);border-radius:var(--radius-md);flex-direction:row;font-size:15px}.side-nav .nav-item[aria-current=page]{background:var(--surface-2)}.shell-top .brand{visibility:hidden}.shell-main{padding:var(--space-6)}.grid{grid-template-columns:repeat(3,1fr)}.grid-stats{grid-template-columns:repeat(5,1fr)}.player-layout{flex-direction:row;align-items:flex-start}.player-layout>.player-main{flex:1;min-width:0}.player-layout>.player-side{flex-shrink:0;width:340px;position:sticky;top:72px}.video{border-radius:var(--radius-lg)}.video-bleed{margin:0}.desktop-only{display:block}.mobile-only{display:none}.hide-mobile{display:block}.editor-split{flex-direction:row;align-items:flex-start}.editor-config{flex-shrink:0;width:400px}.editor-preview{flex:1;position:sticky;top:72px}.preview-frame{height:calc(100dvh - 120px)}.tabs{margin:0;padding:0}}