:root{--primary: #8b5cf6;--primary-hover: #7c3aed;--bg-color: #0f172a;--card-bg: rgba(30, 41, 59, .6);--text-main: #f8fafc;--text-muted: #94a3b8;--border-color: rgba(255, 255, 255, .1);--success: #10b981;--danger: #ef4444}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Outfit,sans-serif;background-color:var(--bg-color);color:var(--text-main);background-image:radial-gradient(ellipse at top left,rgba(139,92,246,.15),transparent 50%),radial-gradient(ellipse at bottom right,rgba(236,72,153,.15),transparent 50%);min-height:100vh;padding:2rem 1rem;line-height:1.5}#app{max-width:650px;margin:0 auto}.login-container{display:flex;justify-content:center;align-items:center;min-height:80vh;animation:fadeIn .5s ease}.login-card{width:100%;max-width:380px;text-align:center;padding:2.5rem 2rem}.login-card h2{color:var(--primary)}header{text-align:center;margin-bottom:2rem;animation:fadeInDown .8s ease}header h1{font-size:2.5rem;font-weight:700;margin-bottom:.2rem;background:linear-gradient(135deg,#a78bfa,#f472b6);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}header span{color:var(--text-main);-webkit-text-fill-color:initial}header p{color:var(--text-muted);font-size:1.05rem;margin-bottom:.5rem}.card{background:var(--card-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:1rem;padding:1.5rem;margin-bottom:1.5rem;box-shadow:0 10px 15px -3px #0000004d,0 4px 6px -2px #00000026;animation:fadeInUp .8s ease backwards}.upload-section{animation-delay:.2s;text-align:center}.upload-section h2{margin-bottom:1rem;text-transform:uppercase;font-size:.9rem;letter-spacing:1px;color:var(--primary)}.input-group{display:flex;flex-direction:column;gap:.75rem}input[type=text],input[type=password]{background:#0f172a99;border:1px solid var(--border-color);color:var(--text-main);padding:.75rem 1rem;border-radius:.5rem;font-family:inherit;font-size:1rem;outline:none;transition:all .3s ease;width:100%}input[type=text]:focus,input[type=password]:focus{border-color:#a78bfa;box-shadow:0 0 0 2px #a78bfa4d}button{background:var(--primary);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:.5rem;font-family:inherit;font-weight:600;font-size:1rem;cursor:pointer;transition:all .3s ease}button:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 4px 12px #7c3aed66}button:active{transform:translateY(0)}.floating-logout{background:var(--danger);color:#fff;padding:.5rem 1.5rem;border-radius:2rem;font-size:.9rem;font-weight:600;border:none;position:fixed;bottom:2rem;right:2rem;z-index:100;box-shadow:0 4px 15px #ef444466;animation:fadeIn .5s ease}.floating-logout:hover{background:#dc2626;transform:translateY(-2px);box-shadow:0 6px 20px #ef444499}.status-danger{color:var(--danger)}.upload-area{border:2px dashed rgba(167,139,250,.4);border-radius:.75rem;padding:3rem 1rem;transition:all .3s ease;background:#a78bfa0d;cursor:pointer}.upload-area:hover,.upload-area.dragover{border-color:#a78bfa;background:#a78bfa1a}.upload-btn{margin-bottom:1rem;display:inline-block}.hidden{display:none!important}.loading-state{text-align:center;padding:3rem;animation:fadeIn .5s ease}.loader{border:4px solid rgba(255,255,255,.1);border-left-color:#f472b6;border-right-color:#a78bfa;border-radius:50%;width:50px;height:50px;animation:spin 1s linear infinite;margin:0 auto 1rem}.result-section{background:#0f172acc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:1rem;padding:1.5rem;animation:fadeInUp .5s ease;box-shadow:0 10px 25px #00000080}.result-section h2{margin-bottom:1rem;color:var(--primary);font-size:1.3rem;font-weight:700}.result-content{line-height:1.7}.result-content h3{color:#a78bfa;margin-top:1.5rem;margin-bottom:.75rem;font-size:1.25rem}.result-content ul,.result-content ol{padding-left:1.5rem;margin-bottom:1rem}.result-content li{margin-bottom:.4rem}.result-content li::marker{color:#f472b6}.chat-history{max-height:350px;overflow-y:auto;display:flex;flex-direction:column;gap:1rem;margin-bottom:1rem;padding-right:5px}.chat-history::-webkit-scrollbar{width:5px}.chat-history::-webkit-scrollbar-thumb{background:#fff3;border-radius:10px}.chat-bubble{padding:.8rem 1rem;border-radius:1rem;max-width:85%;font-size:.95rem;line-height:1.5;animation:fadeIn .3s ease}.chat-bubble.user{background:var(--primary);color:#fff;align-self:flex-end;border-bottom-right-radius:.2rem}.chat-bubble.ai{background:#ffffff1a;border:1px solid rgba(255,255,255,.05);color:var(--text-main);align-self:flex-start;border-bottom-left-radius:.2rem}.chat-bubble.ai p{margin-bottom:.5rem}.chat-bubble.ai ul{padding-left:1.5rem}.qa-input-container{display:flex;gap:.5rem}.qa-input-container input{flex:1}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.navbar{position:fixed;top:0;left:0;width:100%;background:#0f172ad9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;z-index:50;border-bottom:1px solid var(--border-color)}.nav-brand{font-size:1.5rem;font-weight:700;color:var(--text-main)}.nav-brand span{color:var(--primary)}.nav-link-btn{background:#8b5cf633;color:#a78bfa;padding:.5rem 1rem;font-size:.9rem;border-radius:.5rem}.nav-link-btn:hover{background:#8b5cf666}.modal{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000b3;z-index:200;display:flex;justify-content:center;align-items:center;padding:1rem}.modal-content{width:100%;max-width:600px;max-height:80vh;display:flex;flex-direction:column}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid rgba(255,255,255,.1)}.close-btn{background:transparent;color:var(--text-muted);font-size:1.5rem;padding:0;box-shadow:none;width:30px}.close-btn:hover{background:transparent;color:var(--danger);transform:scale(1.1);box-shadow:none}.history-list{overflow-y:auto;flex:1;padding-right:5px}.history-item{background:#0003;border:1px solid rgba(255,255,255,.05);border-radius:.5rem;padding:1rem;margin-bottom:1rem;cursor:pointer;transition:all .2s ease}.history-item:hover{background:#8b5cf61a;border-color:#8b5cf64d}.history-date{font-size:.8rem;color:var(--primary);margin-bottom:.5rem;font-weight:600}@media(max-width:480px){header h1{font-size:2rem}.qa-input-container{flex-direction:column}.floating-logout{bottom:1.5rem;left:50%;transform:translate(-50%);width:90%;right:unset;text-align:center}}