/* GrabCast Studio: Auto edit panel (assets/studio-broll-ui.js): B-roll, SFX, chapters, thumbnail */
.br-panel{position:fixed;z-index:60;right:12px;top:72px;bottom:12px;width:min(430px,calc(100vw - 24px));border:1px solid var(--border);border-radius:14px;box-shadow:0 12px 40px rgba(0,0,0,.28);padding:12px;overflow:auto;background:var(--surface);color:var(--text)}
.br-panel[hidden]{display:none}
.br-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px;font-size:15px}
.br-panel #br-tabs{display:flex;width:100%;margin-bottom:10px}.br-panel #br-tabs button{flex:1}
.br-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:8px 0}
.br-bar{height:8px;border-radius:99px;background:var(--surface2);overflow:hidden;margin:6px 0}.br-bar i{display:block;height:100%;background:linear-gradient(90deg,#4f46e5,#9333ea);transition:width .2s}
.br-chk{display:flex;gap:8px;align-items:flex-start;font-size:13px;margin:6px 0}.br-chk input{margin-top:3px}
.br-sents{list-style:none;margin:8px 0;padding:0}.br-sent{border:1px solid var(--border);border-radius:10px;padding:8px;margin-bottom:8px}.br-sent.skip{opacity:.55}
.br-sent header{display:flex;gap:8px;align-items:baseline;font-size:12px;color:var(--muted)}.br-sent p{margin:4px 0;font-size:13px}
.br-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-top:6px}
.br-cell{border:2px solid transparent;border-radius:8px;padding:0;background:var(--surface2);cursor:pointer;overflow:hidden;position:relative;text-align:left;font:inherit;color:inherit}
.br-cell img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}.br-cell[aria-pressed=true]{border-color:#6366f1}.br-cell:hover{border-color:#818cf8}
.br-cell small{display:block;font-size:10.5px;padding:2px 4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--muted)}
.br-cell .dur{position:absolute;right:3px;top:3px;background:rgba(0,0,0,.65);color:#fff;font-size:10px;border-radius:4px;padding:0 4px}
.br-ch{list-style:none;margin:8px 0;padding:0}.br-ch li{display:flex;gap:8px;align-items:center;padding:4px 0;border-bottom:1px solid var(--border)}.br-ch .ts{font-variant-numeric:tabular-nums;color:var(--muted);min-width:46px;border:0;background:transparent;font:inherit;cursor:pointer;text-align:left}
.br-ch input{flex:1;min-width:0}
.br-thumbs{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin:8px 0}.br-thumbs canvas{width:100%;height:auto;border-radius:8px;display:block}
.br-th{border:2px solid transparent;border-radius:10px;padding:2px;background:var(--surface2);cursor:pointer;font:inherit;color:inherit;font-size:11px;text-align:center}.br-th[aria-pressed=true]{border-color:#6366f1}
.br-prev{width:100%;height:auto;border-radius:10px;display:block;border:1px solid var(--border)}
.br-score{display:flex;gap:10px;align-items:center;margin:8px 0}.br-score b{font-size:26px}
.br-tips{margin:4px 0 0 18px;padding:0;font-size:12.5px}
.br-credits{white-space:pre-wrap;font-size:12px;border:1px solid var(--border);border-radius:10px;padding:8px;max-height:160px;overflow:auto;background:var(--surface2)}
@media(max-width:760px){.br-panel{left:0;right:0;top:auto;bottom:0;width:auto;height:72vh;border-radius:14px 14px 0 0}}
/* "Connect a free stock key" card (owner rule 2026-10-05: stock search uses the person's own Pexels/Pixabay key) */
.br-key{border:1px solid var(--border);border-radius:12px;padding:12px;margin:4px 0 8px;line-height:1.45}
.br-key>b{display:block;margin-bottom:4px}
.br-steps{margin:6px 0 10px;padding-left:20px;font-size:13px;display:grid;gap:4px}
.br-key a:not(.st-btn){color:inherit;text-decoration:underline;font-weight:600}