:root{--bg-app:#0f1419;--bg-panel:#1a1f2e;--bg-card:#252b3d;--bg-card-2:#2d3349;--border:#2a3147;--primary:#6366f1;--primary-2:#818cf8;--success:#10b981;--danger:#ef4444;--warning:#f59e0b;--text:#e5e7eb;--text-dim:#94a3b8;--text-mute:#64748b}*{box-sizing:border-box}html,body{height:100%;margin:0;overflow:hidden}body{background:var(--bg-app);color:var(--text);font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:14px}.app{grid-template-rows:56px 1fr;height:100vh;display:grid}.main{grid-template-columns:1fr 380px;display:grid;overflow:hidden}.topbar{background:var(--bg-panel);border-bottom:1px solid var(--border);z-index:10;align-items:center;gap:18px;padding:0 18px;display:flex}.brand{color:var(--primary-2);align-items:center;gap:8px;font-weight:600;display:flex}.brand i{font-size:20px}.session-info{color:var(--text-dim);align-items:center;gap:10px;display:flex}.session-info .session-name{color:var(--text);font-weight:500}.pill{background:var(--bg-card);color:var(--text-dim);border:1px solid var(--border);border-radius:999px;align-items:center;gap:6px;padding:4px 10px;font-size:12px;display:inline-flex}.pill.live{color:#fff;background:#ef444426;border-color:#ef444466}.pill.live .dot{background:var(--danger);border-radius:50%;width:8px;height:8px;animation:1.4s infinite pulse}.pill.clickable{cursor:pointer;transition:background .15s}.pill.clickable:hover{background:var(--bg-card-2)}.pill.participants-pill{color:#fff;background:linear-gradient(135deg,#6366f140,#8b5cf640);border-color:#6366f18c;padding:6px 14px;font-size:13px;font-weight:500;box-shadow:0 0 0 1px #6366f126,0 4px 14px #6366f140}.pill.participants-pill strong{color:var(--primary-2);font-size:14px;font-weight:700}.pill.participants-pill i{color:var(--primary-2);font-size:14px}.pill.participants-pill:hover{border-color:var(--primary);background:linear-gradient(135deg,#6366f159,#8b5cf659)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.35}}.topbar .spacer{flex:1}.top-actions{gap:8px;display:flex}.top-actions button{border:1px solid var(--border);color:var(--text-dim);cursor:pointer;background:0 0;border-radius:8px;justify-content:center;align-items:center;width:34px;height:34px;transition:all .15s;display:inline-flex}.top-actions button:hover{background:var(--bg-card);color:var(--text)}.stage{flex-direction:column;padding:18px;display:flex;position:relative;overflow:hidden}.video-area{background:var(--bg-app);border:1px solid var(--border);border-radius:18px;flex:1;position:relative;overflow:hidden;box-shadow:0 20px 60px #0006}.video-grid{grid-template-columns:1fr 1fr;gap:10px;padding:10px;display:grid;position:absolute;inset:0}.cam-tile{border:1px solid var(--border);background:radial-gradient(circle at 30% 20%,#1e2540 0%,#0b0f1a 70%);border-radius:14px;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.cam-tile.cam-docente{border-color:#6366f166;box-shadow:inset 0 0 0 1px #6366f133}.cam-tile:before{content:"";pointer-events:none;background:radial-gradient(#0000 50%,#0006 100%);position:absolute;inset:0}.cam-tile video,.cam-tile video[data-lk-orientation=portrait]{object-fit:cover;z-index:1;width:100%;height:100%;position:absolute;inset:0}.cam-avatar{color:#fff;border-radius:50%;justify-content:center;align-items:center;width:clamp(48px,40%,160px);height:clamp(48px,40%,160px);font-size:clamp(20px,4vw,64px);font-weight:600;display:flex}.cam-avatar.speaker-avatar{background:linear-gradient(135deg,#6366f1,#8b5cf6);box-shadow:0 0 0 4px #6366f14d,0 0 60px #6366f166}.cam-avatar.student-avatar{background:linear-gradient(135deg,#10b981,#06b6d4);box-shadow:0 0 0 4px #10b9814d,0 0 60px #10b98166}.cam-name{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:2;background:#0009;border-radius:8px;align-items:center;gap:8px;padding:6px 12px;font-size:13px;display:flex;position:absolute;bottom:14px;left:14px}.cam-name .badge-doc{background:var(--primary);color:#fff;text-transform:uppercase;letter-spacing:.5px;border-radius:4px;padding:2px 7px;font-size:10px}.video-area:before{content:"";pointer-events:none;z-index:0;background:radial-gradient(#0000 50%,#0006 100%);position:absolute;inset:0}.speaker-avatar{color:#fff;background:linear-gradient(135deg,#6366f1,#8b5cf6);border-radius:50%;justify-content:center;align-items:center;width:clamp(56px,40%,180px);height:clamp(56px,40%,180px);font-size:clamp(24px,4vw,72px);font-weight:600;display:flex;position:relative;box-shadow:0 0 0 4px #6366f14d,0 0 60px #6366f166}.speaker-avatar:after{content:"";border:3px solid var(--success);border-radius:50%;animation:1.8s ease-in-out infinite 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8px);left:50%;transform:translate(-50%)}.ctrl-divider{background:var(--border);width:1px;height:30px;margin:0 4px}.sidebar{background:var(--bg-panel);border-left:1px solid var(--border);flex-direction:column;display:flex;overflow:hidden}.sidebar-close-btn,.sidebar-backdrop{display:none}.mobile-sidebar-toggle{border:1px solid var(--border);color:var(--text-dim);cursor:pointer;background:0 0;border-radius:8px;justify-content:center;align-items:center;width:34px;height:34px;font-size:16px;transition:all .15s;display:none!important}.mobile-sidebar-toggle:hover{background:var(--bg-card);color:var(--text)}.tabs{border-bottom:1px solid var(--border);background:var(--bg-app);display:flex}.tab{text-align:center;color:var(--text-dim);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;flex-direction:column;flex:1;align-items:center;gap:2px;padding:12px 4px;font-size:12px;transition:all .15s;display:flex;position:relative}.tab 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var(--border);background:var(--bg-app);padding:10px 12px;position:relative}.search-box input{background:var(--bg-card);border:1px solid var(--border);width:100%;color:var(--text);border-radius:8px;outline:none;padding:7px 12px 7px 32px;font-size:12px}.search-box i{color:var(--text-mute);font-size:14px;position:absolute;top:50%;left:22px;transform:translateY(-50%)}.fundae-chip{color:#6ee7b7;background:#10b9811f;border:1px solid #10b9814d;border-radius:8px;align-items:center;gap:6px;margin:8px 12px 0;padding:7px 10px;font-size:11px;display:flex}.section-title{color:var(--text-dim);text-transform:uppercase;letter-spacing:.5px;margin:14px 4px 6px;font-size:11px;font-weight:600}.pt-row{border-radius:8px;align-items:center;gap:9px;padding:7px 6px;transition:background .15s;display:flex}.pt-row:hover{background:var(--bg-card)}.pt-row 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