.voice-tutor-overlay{position:fixed;inset:0;z-index:1000;background:rgba(15,23,42,.4);backdrop-filter:blur(12px);display:flex;align-items:center;justify-content:center;animation:fadeIn .4s ease-out}.voice-tutor-container{width:90%;max-width:600px;background:hsla(0,0%,100%,.85);border:1px solid hsla(0,0%,100%,.3);border-radius:32px;box-shadow:0 25px 50px -12px rgba(0,0,0,.25);padding:40px;display:flex;flex-direction:column;align-items:center;gap:32px;position:relative;overflow:hidden}.voice-tutor-header{width:100%;display:flex;justify-content:space-between;align-items:center}.voice-tutor-identity{display:flex;align-items:center;gap:16px}.alex-orb{width:64px;height:64px;background:linear-gradient(135deg,#6366f1,#a855f7);border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 0 20px rgba(99,102,241,.3);position:relative}.alex-orb:after{content:"";position:absolute;inset:-4px;border:2px solid rgba(99,102,241,.2);border-radius:50%}.alex-orb.listening{animation:pulseOrb 2s infinite}.alex-orb.thinking{animation:spinOrb 2s linear infinite,glowOrb 1.5s ease-in-out infinite alternate}.alex-orb.speaking{animation:rippleOrb 1.5s infinite,glowOrb 1.5s ease-in-out infinite alternate}@keyframes spinOrb{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}@keyframes glowOrb{0%{box-shadow:0 0 10px rgba(99,102,241,.3)}to{box-shadow:0 0 30px rgba(168,85,247,.6)}}.voice-tutor-title{font-size:1.25rem;font-weight:700;color:#1e293b;margin:0}.voice-tutor-status{font-size:.875rem;color:#64748b}.voice-visualizer{height:80px;display:flex;align-items:center;gap:4px}.visualizer-bar{width:6px;height:8px;background:linear-gradient(0deg,#6366f1,#a855f7);border-radius:4px;transition:all .3s ease}.visualizer-bar.active-listening{animation:barPulse 1.2s ease-in-out infinite}.visualizer-bar.active-speaking{animation:barBounce .8s ease-in-out infinite}@keyframes 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rgba(0,0,0,.1)}.voice-control-btn.mic-on{background:#ef4444;color:#fff}.voice-control-btn.close{background:#0f172a;color:#fff}.voice-acc-panel{position:absolute;right:20px;top:100px;display:flex;flex-direction:column;gap:8px}.acc-toggle{background:#fff;border:1px solid #e2e8f0;padding:6px 12px;border-radius:8px;font-size:.75rem;font-weight:700;cursor:pointer}@keyframes pulseOrb{0%{transform:scale(1);box-shadow:0 0 20px rgba(99,102,241,.3)}50%{transform:scale(1.05);box-shadow:0 0 40px rgba(99,102,241,.5)}to{transform:scale(1);box-shadow:0 0 20px rgba(99,102,241,.3)}}@keyframes rippleOrb{0%{box-shadow:0 0 0 0 rgba(99,102,241,.4)}70%{box-shadow:0 0 0 20px rgba(99,102,241,0)}to{box-shadow:0 0 0 0 rgba(99,102,241,0)}}html[data-theme=dark] .voice-tutor-container{background:rgba(15,23,42,.85);border-color:hsla(0,0%,100%,.1)}html[data-theme=dark] .voice-tutor-title{color:#f1f5f9}html[data-theme=dark] .voice-mode-btn{background:#334155;border-color:#475569;color:#cbd5e1}html[data-theme=dark] .voice-captions{background:rgba(30,41,59,.5);border-color:#334155;color:#f1f5f9}.voice-visualize-btn-bottom{width:auto;min-width:160px;height:48px;border-radius:24px;border:none;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;justify-content:center;padding:0 24px;font-weight:700;font-size:.9rem;letter-spacing:.02em}.voice-visualize-btn-bottom.disabled{background:#f1f5f9;color:#94a3b8;cursor:not-allowed;border:1px solid #e2e8f0}.voice-visualize-btn-bottom.active{background:#6366f1;color:#fff;box-shadow:0 10px 20px rgba(99,102,241,.3);animation:bounceIn .5s cubic-bezier(.68,-.55,.265,1.55)}.voice-visualize-btn-bottom.active:hover{background:#4f46e5;transform:translateY(-2px);box-shadow:0 15px 30px rgba(99,102,241,.4)}.voice-visualize-btn-bottom .btn-content{display:flex;align-items:center;gap:10px}@keyframes bounceIn{0%{transform:scale(.8);opacity:0}70%{transform:scale(1.1)}to{transform:scale(1);opacity:1}}.voice-visualize-btn-bottom.loading{background:#6366f1;cursor:wait}.voice-controls{display:flex;justify-content:center;padding-top:16px}.voice-visual-intent-bar{display:none}.ls-mode-wrapper{--ls-font-size:18px;--ls-line-height:1.6;--ls-paragraph-spacing:1.5rem;--ls-max-width:800px;--ls-bg:#fdfdfd;--ls-surface:#fff;--ls-border:#e2e8f0;--ls-accent:#6366f1;--ls-accent-soft:rgba(99,102,241,.05);--ls-text-primary:#1e293b;--ls-text-secondary:#64748b;height:100%;display:flex;flex-direction:column;background:var(--ls-bg);color:var(--ls-text-primary);font-family:var(--font-ui)}.ls-integrated-header{padding:16px 24px;border-bottom:1px solid var(--ls-border);display:flex;justify-content:space-between;align-items:center;background:#fff;z-index:10}.ls-header-left{display:flex;flex-direction:column}.ls-header-right{display:flex;gap:12px}.ls-integrated-canvas{flex:1;overflow-y:auto;padding:40px 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