:root{--primary-color:#00e5ff;--bg-color:#090a0f;--bg-panel:#0f111abf;--text-main:#f0f6fc;--text-muted:#8b949e;--accent:#58a6ff;--border:#ffffff14;--glass-shadow:0 8px 32px 0 #0000005e;--glass-border:1px solid #ffffff14}body{background-color:var(--bg-color);background-image:radial-gradient(circle at 0% 0%, #58a6ff1a, transparent 40%), radial-gradient(circle at 100% 100%, #00e5ff1a, transparent 40%), radial-gradient(circle at 50% 50%, #0d1117, var(--bg-color) 100%);color:var(--text-main);justify-content:center;align-items:center;min-height:100vh;font-family:Inter,Outfit,system-ui,-apple-system,sans-serif;line-height:1.6;display:flex}#root{justify-content:center;align-items:center;width:100%;height:100vh;padding:20px;display:flex}:root{--primary:#00e5ff;--primary-hover:#00b8d4;--bg-sidebar:#0f172a99;--bg-main:transparent;--bg-card:#1e293bb3;--text-main:#f8fafc;--text-muted:#94a3b8;--border:#ffffff14;--accent:#00e5ff;--sidebar-width:260px;--glass-shadow:0 8px 32px 0 #0000005e}*{box-sizing:border-box;margin:0;padding:0}body{color:var(--text-main);background-color:#0000;font-family:Inter,Outfit,system-ui,-apple-system,sans-serif;overflow:hidden}.dashboard-container{width:100vw;height:100vh;display:flex}.sidebar{width:var(--sidebar-width);background:var(--bg-sidebar);-webkit-backdrop-filter:blur(20px);border-right:1px solid var(--border);z-index:10;flex-direction:column;padding:24px 0;display:flex;box-shadow:4px 0 24px #0003}.sidebar-brand{flex-direction:column;gap:8px;padding:0 24px 32px;display:flex}.sidebar-brand h2{color:#fff;font-size:1.25rem;font-weight:700}.sidebar-nav{flex-direction:column;flex:1;gap:4px;padding:0 12px;display:flex}.nav-item{color:var(--text-muted);cursor:pointer;border-radius:12px;align-items:center;gap:12px;padding:12px;font-size:.9rem;text-decoration:none;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex}.nav-item:hover,.nav-item.active{color:#fff;box-shadow:inset 2px 0 0 var(--primary);background:#00e5ff1a;transform:translate(4px)}.nav-item svg{width:18px;height:18px}.sidebar-footer{border-top:1px solid var(--border);color:var(--text-muted);padding:24px;font-size:.75rem}.main-content{background:0 0;flex-direction:column;flex:1;display:flex;position:relative}.main-header{border-bottom:1px solid var(--border);-webkit-backdrop-filter:blur(12px);z-index:5;background:#0f172a66;justify-content:space-between;align-items:center;height:64px;padding:0 32px;display:flex}.main-header h3{font-size:1rem;font-weight:500}.chat-window{flex-direction:column;flex:1;gap:32px;padding:40px 0;display:flex;overflow-y:auto}.chat-inner{width:100%;max-width:800px;margin:0 auto;padding:0 24px}.message{gap:16px;margin-bottom:24px;animation:.3s ease-out fadeIn;display:flex}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message.user{flex-direction:row-reverse}.avatar{background:var(--bg-card);border:1px solid var(--border);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;display:flex}.user .avatar{color:#fff;background:linear-gradient(135deg,#58a6ff,#00e5ff);border:none;box-shadow:0 4px 12px #00e5ff4d}.message-card{background:var(--bg-card);-webkit-backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:16px;max-width:80%;padding:20px;box-shadow:0 8px 32px #0003}.user .message-card{color:#fff;background:linear-gradient(135deg,#58a6ff40,#00e5ff26);border:1px solid #00e5ff4d;border-top-right-radius:4px;box-shadow:0 4px 20px #00e5ff1a}.ai .message-card{background:#1e293b99;border:1px solid #ffffff14;border-top-left-radius:4px}.markdown-body{font-size:.95rem;line-height:1.6}.markdown-body strong{color:#fbbf24;font-weight:700}.action-bar{border-top:1px solid var(--border);gap:12px;margin-top:16px;padding-top:12px;display:flex}.action-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;align-items:center;gap:6px;font-size:.75rem;display:flex}.action-btn:hover{color:var(--primary)}.input-section{z-index:10;background:linear-gradient(#0000,#0f172ae6 20%);padding:24px 0 40px;position:relative}.input-container{width:100%;max-width:800px;margin:0 auto;padding:0 24px}.input-box{-webkit-backdrop-filter:blur(16px);background:#0f172acc;border:1px solid #ffffff1a;border-radius:24px;align-items:center;gap:12px;padding:8px 16px;transition:all .3s;display:flex;box-shadow:0 10px 40px -10px #00000080,inset 0 2px 4px #ffffff05}.input-box:focus-within{border-color:#00e5ff66;box-shadow:0 0 0 4px #00e5ff1a,0 10px 40px -10px #00000080}.input-box input{color:#fff;background:0 0;border:none;flex:1;padding:12px 0;font-size:1rem}.input-box input:focus{outline:none}.send-button{color:#000;cursor:pointer;background:linear-gradient(135deg,#58a6ff,#00e5ff);border:none;border-radius:16px;padding:10px 20px;font-weight:700;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 8px 20px #00e5ff40}.send-button:hover:not(:disabled){transform:translateY(-2px)scale(1.05);box-shadow:0 12px 25px #00e5ff66}.send-button:disabled{opacity:.5;cursor:not-allowed;background:var(--bg-card);color:var(--text-muted);box-shadow:none}.ref-list{border:1px dashed var(--border);background:#0f172a66;border-radius:8px;margin-top:12px;padding:16px;font-size:.8rem}.ref-tag{color:var(--primary);margin-bottom:4px;font-weight:600;display:block}.footer-badges{flex-wrap:wrap;justify-content:center;gap:8px;margin-top:12px;display:flex}.badge{border:1px solid var(--border);color:var(--text-muted);background:#ffffff0d;border-radius:4px;padding:2px 8px;font-size:.65rem}.quiz-options{flex-direction:column;gap:12px;display:flex}.opt-item{border:1px solid var(--border);cursor:pointer;background:#ffffff05;border-radius:8px;gap:12px;padding:16px;transition:all .2s;display:flex}.opt-item:hover{border-color:var(--text-muted);background:#ffffff0d}.opt-item.selected{border-color:var(--primary);background:#38bdf81a}.opt-item.correct{background:#10b9811a;border-color:#10b981}.opt-item.wrong{background:#ef44441a;border-color:#ef4444}.opt-key{color:var(--primary);min-width:20px;font-weight:700}.stats-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px;margin-top:16px;display:grid}.stat-card{border:1px solid var(--border);background:#0f172a66;border-radius:12px;flex-direction:column;gap:8px;padding:20px;display:flex}.stat-bar{background:#ffffff1a;border-radius:3px;height:6px;margin-top:8px;overflow:hidden}.stat-fill{height:100%;transition:width .5s ease-out}.mistake-list{border:1px solid var(--border);border-radius:8px;max-height:400px;padding:16px;overflow-y:auto}.dot{background:var(--text-muted);border-radius:50%;width:8px;height:8px;animation:1.4s ease-in-out infinite both bounce}.dot:first-child{animation-delay:-.32s}.dot:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.modal-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:2000;background:#000c;justify-content:center;align-items:center;animation:.3s ease-out fadeIn;display:flex;position:fixed;inset:0}.modal-content{-webkit-backdrop-filter:blur(24px);background:#1e293bd9;border:1px solid #ffffff1a;border-radius:24px;width:90%;max-width:800px;padding:40px;animation:.5s cubic-bezier(.16,1,.3,1) slideUp;box-shadow:0 30px 60px -12px #0009,inset 0 1px #ffffff0d}.mode-selection-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;display:grid}.mode-card{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);cursor:pointer;text-align:center;background:#ffffff08;border:1px solid #ffffff0d;border-radius:20px;padding:24px;transition:all .4s cubic-bezier(.16,1,.3,1);position:relative;overflow:hidden}.mode-card:hover{background:#00e5ff14;border-color:#00e5ff66;transform:translateY(-6px)scale(1.02);box-shadow:0 20px 40px -10px #00e5ff26,inset 0 0 0 1px #00e5ff1a}.mode-icon{margin-bottom:16px;font-size:2.5rem}.mode-card h4{color:#fff;margin-bottom:8px}.mode-card p{color:var(--text-muted);font-size:.85rem;line-height:1.5}.reinforce-btn{color:var(--primary);cursor:pointer;background:#38bdf81a;border:1px solid #38bdf833;border-radius:8px;justify-content:center;align-items:center;width:32px;height:32px;font-size:1.1rem;transition:all .2s;display:flex}.reinforce-btn:hover{background:var(--primary);color:#fff;transform:scale(1.1)}.loader{border:5px solid #fff;border-bottom-color:var(--primary);box-sizing:border-box;border-radius:50%;width:48px;height:48px;margin-bottom:20px;animation:1s linear infinite rotation;display:inline-block}@keyframes rotation{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.content-body-wrapper{flex:1;display:flex;overflow:hidden}.deep-dive-panel{-webkit-backdrop-filter:blur(30px);z-index:100;background:#0f172ad9;border-left:1px solid #ffffff14;flex-direction:column;width:450px;animation:.5s cubic-bezier(.16,1,.3,1) slideInRight;display:flex;box-shadow:-20px 0 50px #00000080}@keyframes slideInRight{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}.panel-header{border-bottom:1px solid var(--border);background:#ffffff08;padding:24px}.panel-content{flex:1;padding:24px;overflow-y:auto}.close-panel{border:1px solid var(--border);color:var(--text-muted);cursor:pointer;background:#ffffff0d;border-radius:50%;justify-content:center;align-items:center;width:32px;height:32px;transition:all .2s;display:flex}.close-panel:hover{color:#fff;background:#ef4444}.term-badge{background:linear-gradient(135deg, var(--primary), var(--primary-hover));color:#fff;border-radius:8px;padding:6px 14px;font-size:.9rem;font-weight:600;display:inline-block;box-shadow:0 4px 12px #38bdf84d}.source-section{border-top:1px solid var(--border);margin-top:32px;padding-top:24px}.source-title{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:12px;font-size:.85rem;font-weight:700}.loading-container{height:100%;color:var(--text-muted);text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:20px;display:flex}.ai-response{animation:.5s ease-out fadeIn}.ai-response .markdown-body{color:#f1f5f9;font-size:1rem}.ref-snippet{border-left:3px solid var(--primary);color:#94a3b8;background:#ffffff0a;border-radius:4px;margin-top:10px;padding:12px;font-size:.85rem;font-style:italic;line-height:1.6;position:relative;overflow:hidden}.ref-snippet:before{content:"\"";opacity:.1;font-family:serif;font-size:2rem;position:absolute;top:0;left:6px}.copy-snippet-btn{border:1px solid var(--border);color:var(--text-muted);cursor:pointer;background:0 0;border-radius:4px;margin-top:8px;padding:4px 8px;font-size:.7rem;transition:all .2s}.copy-snippet-btn:hover{border-color:var(--primary);color:var(--primary)}