:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.speaker-controls{display:flex;align-items:center;gap:8px;padding:12px 24px;background:linear-gradient(135deg,#1a1a2ef2,#16213ef2);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:16px;box-shadow:0 8px 32px #0000004d;border:1px solid rgba(255,255,255,.1)}.speaker-controls__btn{display:flex;flex-direction:column;align-items:center;gap:4px;padding:12px 16px;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:12px;color:#fff;cursor:pointer;transition:all .2s ease;min-width:72px}.speaker-controls__btn:hover:not(:disabled){background:#ffffff1a;transform:translateY(-2px)}.speaker-controls__btn:disabled{opacity:.5;cursor:not-allowed}.speaker-controls__btn--active{background:#ef444433;border-color:#ef444480}.speaker-controls__btn--active:hover:not(:disabled){background:#ef44444d}.speaker-controls__btn--sharing{background:linear-gradient(135deg,#22c55e33,#10b98133);border-color:#22c55e80;animation:pulse 2s infinite}.speaker-controls__btn--secondary{background:transparent;border-color:transparent}.speaker-controls__btn--secondary:hover:not(:disabled){background:#ffffff0d}.speaker-controls__icon{font-size:1.5rem}.speaker-controls__label{font-size:.75rem;font-weight:500;opacity:.9}.speaker-controls__divider{width:1px;height:40px;background:#ffffff1a;margin:0 8px}@keyframes pulse{0%,to{box-shadow:0 0 #22c55e66}50%{box-shadow:0 0 0 8px #22c55e00}}@media(max-width:640px){.speaker-controls{padding:8px 16px;gap:4px}.speaker-controls__btn{padding:8px 12px;min-width:60px}.speaker-controls__icon{font-size:1.25rem}.speaker-controls__label{font-size:.625rem}}.qa-panel{display:flex;flex-direction:column;height:100%;background:#1a1a2e;border-radius:12px;overflow:hidden}.qa-panel__header{padding:16px;border-bottom:1px solid rgba(255,255,255,.1)}.qa-panel__title{margin:0 0 12px;font-size:1.125rem;font-weight:600;color:#fff}.qa-panel__tabs{display:flex;gap:8px}.qa-panel__tab{padding:6px 12px;background:transparent;border:1px solid rgba(255,255,255,.2);border-radius:20px;color:#ffffffb3;font-size:.75rem;cursor:pointer;transition:all .2s ease}.qa-panel__tab:hover{background:#ffffff1a;color:#fff}.qa-panel__tab--active{background:linear-gradient(135deg,#667eea,#764ba2);border-color:transparent;color:#fff}.qa-panel__questions{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px}.qa-panel__empty{text-align:center;color:#ffffff80;padding:40px 20px}.qa-panel__question{background:#ffffff0d;border-radius:12px;padding:12px;border-left:3px solid #667eea}.qa-panel__question--pending{border-left-color:#f59e0b}.qa-panel__question--answered{border-left-color:#22c55e}.qa-panel__question-header{display:flex;justify-content:space-between;margin-bottom:8px}.qa-panel__asker{font-size:.875rem;font-weight:600;color:#fff}.qa-panel__time{font-size:.75rem;color:#ffffff80}.qa-panel__question-text{margin:0 0 12px;font-size:.875rem;color:#ffffffe6;line-height:1.5}.qa-panel__answer{background:#22c55e1a;border-radius:8px;padding:10px;margin-bottom:12px}.qa-panel__answer-label{display:block;font-size:.75rem;color:#22c55e;margin-bottom:4px}.qa-panel__answer-text{margin:0;font-size:.875rem;color:#ffffffe6}.qa-panel__question-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.qa-panel__upvote{padding:4px 10px;background:#ffffff1a;border:none;border-radius:16px;color:#ffffffb3;font-size:.75rem;cursor:pointer;transition:all .2s ease}.qa-panel__upvote:hover{background:#fff3}.qa-panel__upvote--active{background:#667eea4d;color:#667eea}.qa-panel__action-btn{padding:4px 10px;border:none;border-radius:4px;font-size:.75rem;cursor:pointer;transition:all .2s ease}.qa-panel__action-btn--approve{background:#22c55e33;color:#22c55e}.qa-panel__action-btn--approve:hover{background:#22c55e4d}.qa-panel__action-btn--reject{background:#ef444433;color:#ef4444}.qa-panel__action-btn--reject:hover{background:#ef44444d}.qa-panel__action-btn--answer{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.qa-panel__answer-form{display:flex;gap:8px;width:100%;margin-top:8px}.qa-panel__answer-input{flex:1;padding:8px 12px;background:#0000004d;border:1px solid rgba(255,255,255,.1);border-radius:8px;color:#fff;font-size:.875rem}.qa-panel__answer-input::placeholder{color:#fff6}.qa-panel__submit-form{display:flex;gap:8px;padding:16px;border-top:1px solid rgba(255,255,255,.1)}.qa-panel__input{flex:1;padding:12px 16px;background:#0000004d;border:1px solid rgba(255,255,255,.1);border-radius:24px;color:#fff;font-size:.875rem}.qa-panel__input::placeholder{color:#fff6}.qa-panel__submit-btn{padding:12px 24px;background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:24px;color:#fff;font-weight:600;cursor:pointer;transition:all .2s ease}.qa-panel__submit-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 12px #667eea66}.qa-panel__submit-btn:disabled{opacity:.5;cursor:not-allowed}:root{--bg-primary: #0f0f23;--bg-secondary: #1a1a2e;--bg-tertiary: #16213e;--accent-primary: #667eea;--accent-secondary: #764ba2;--text-primary: #ffffff;--text-secondary: rgba(255, 255, 255, .7);--text-muted: rgba(255, 255, 255, .5);--border-color: rgba(255, 255, 255, .1);--success: #22c55e;--danger: #ef4444;--warning: #f59e0b}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh}.join-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--bg-primary) 0%,var(--bg-tertiary) 100%);padding:20px}.join-card{background:var(--bg-secondary);border-radius:24px;padding:48px;width:100%;max-width:480px;box-shadow:0 20px 60px #00000080;border:1px solid var(--border-color)}.join-header{text-align:center;margin-bottom:32px}.join-header h1{font-size:2rem;margin-bottom:8px;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.join-header p{color:var(--text-secondary)}.join-form{display:flex;flex-direction:column;gap:20px}.form-group{display:flex;flex-direction:column;gap:8px}.form-group label{font-size:.875rem;font-weight:500;color:var(--text-secondary)}.form-group input{padding:14px 18px;background:#0000004d;border:1px solid var(--border-color);border-radius:12px;color:var(--text-primary);font-size:1rem;transition:all .2s ease}.form-group input:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px #667eea33}.form-group input::placeholder{color:var(--text-muted)}.role-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.role-btn{padding:12px;background:#ffffff0d;border:1px solid var(--border-color);border-radius:12px;color:var(--text-secondary);font-size:.875rem;cursor:pointer;transition:all .2s ease}.role-btn:hover{background:#ffffff1a;color:var(--text-primary)}.role-btn.active{background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));border-color:transparent;color:#fff}.join-btn{padding:16px;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));border:none;border-radius:12px;color:#fff;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease;margin-top:8px}.join-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px #667eea66}.join-footer{text-align:center;margin-top:24px;padding-top:24px;border-top:1px solid var(--border-color)}.join-footer p{font-size:.75rem;color:var(--text-muted)}.webinar-page{display:flex;flex-direction:column;height:100vh;background:var(--bg-primary)}.webinar-header{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;background:var(--bg-secondary);border-bottom:1px solid var(--border-color)}.header-left{display:flex;align-items:center;gap:16px}.header-left h1{font-size:1.25rem;font-weight:600}.live-badge{padding:4px 12px;background:#ef444433;color:var(--danger);border-radius:20px;font-size:.75rem;font-weight:600;animation:pulse 2s infinite}.connection-status{padding:4px 12px;border-radius:20px;font-size:.75rem;font-weight:500}.connection-status.connected{background:#22c55e33;color:var(--success)}.connection-status.disconnected{background:#ef444433;color:var(--danger)}.video-grid-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px;height:100%;padding:16px}.local-video-container,.remote-video-container{position:relative;aspect-ratio:16 / 9;background:linear-gradient(135deg,#1a1a2e,#16213e);border-radius:12px;overflow:hidden;box-shadow:0 4px 20px #0000004d}.local-video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}.local-video.hidden{display:none}.video-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2)}.avatar-circle{width:80px;height:80px;border-radius:50%;background:#fff3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:600;color:#fff;text-transform:uppercase;border:2px solid rgba(255,255,255,.3);margin-bottom:12px}.participant-name{color:#fff;font-size:1rem;font-weight:500}.video-label{position:absolute;bottom:12px;left:12px;padding:4px 12px;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border-radius:4px;color:#fff;font-size:.875rem}.remote-video{width:100%;height:100%;object-fit:cover}@keyframes pulse{0%,to{opacity:1}50%{opacity:.6}}.header-right{display:flex;align-items:center;gap:16px}.participant-count{color:var(--text-secondary);font-size:.875rem}.leave-btn{padding:8px 16px;background:#ef444433;border:1px solid rgba(239,68,68,.5);border-radius:8px;color:var(--danger);font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s ease}.leave-btn:hover{background:#ef44444d}.webinar-content{flex:1;display:flex;overflow:hidden}.video-area{flex:1;padding:16px;overflow:hidden}.sidebar{width:360px;border-left:1px solid var(--border-color);overflow:hidden}.webinar-footer{display:flex;justify-content:center;align-items:center;gap:24px;padding:16px 24px;background:var(--bg-secondary);border-top:1px solid var(--border-color)}.footer-actions,.attendee-controls{display:flex;gap:8px}.action-btn{padding:10px 16px;background:#ffffff0d;border:1px solid var(--border-color);border-radius:8px;color:var(--text-secondary);font-size:.875rem;cursor:pointer;transition:all .2s ease}.action-btn:hover{background:#ffffff1a;color:var(--text-primary)}.action-btn.active{background:#667eea33;border-color:#667eea80;color:var(--accent-primary)}@media(max-width:768px){.join-card{padding:32px}.role-buttons{grid-template-columns:1fr}.sidebar{position:fixed;right:0;top:0;bottom:0;width:100%;max-width:360px;z-index:100;background:var(--bg-secondary)}.webinar-footer{flex-wrap:wrap}}