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brightness(.72);pointer-events:none!important}.mcq-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:100;display:grid;place-items:center;padding:24px;pointer-events:auto}.mcq-overlay-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:#0f172a94;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);pointer-events:none}.mcq-card{position:relative;z-index:1;width:min(560px,100%);max-height:min(78vh,640px);overflow:auto;padding:22px 22px 18px;border-radius:20px;background:#fff;box-shadow:0 28px 80px #0f172a47;border:1px solid rgba(226,232,240,.95);pointer-events:auto}.mcq-card-header{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;margin-bottom:14px}.mcq-badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;background:#fff7ed;color:#c2410c;font-size:11px;font-weight:700;letter-spacing:.02em;text-transform:uppercase}.mcq-progress{font-size:12px;color:#64748b}.mcq-question{margin:0 0 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rgba(226,232,240,.86);border-radius:20px;box-shadow:0 16px 36px #11182712,0 2px 8px #1118270a}.captions-card{display:flex;flex-direction:column;overflow:hidden;flex:1 1 auto;min-height:clamp(160px,20vh,260px);padding:14px 16px 12px 18px}.captions-card.live{border-color:#ff760057;box-shadow:0 0 0 1px #ff760014,0 18px 34px #ff76001a}.captions-scroll{flex:1 1 auto;min-height:0;overflow-y:auto;padding-right:12px}.captions-card h2,.structure-card h2{font-size:20px;line-height:1.2;font-weight:700;margin:0}.caption-entry{display:flex;align-items:baseline;gap:7px;margin-bottom:4px}.caption-body{display:flex;align-items:baseline;gap:5px;flex-wrap:wrap;flex:1}.caption-time{color:#9ca3af;font-size:11px;font-weight:500;flex-shrink:0;min-width:28px}.caption-speaker{color:var(--accent);font-size:12px;font-weight:700;flex-shrink:0}.caption-speaker:after{content:":"}.caption-entry.student .caption-speaker,.caption-entry.interim .caption-speaker{color:#2563eb}.caption-entry.interim 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