:root{--bg-primary: #0f172a;--bg-secondary: #1e293b;--primary: #8b5cf6;--accent: #a78bfa;--text-primary: #f1f5f9;--text-secondary: #94a3b8;--success: #10b981;--error: #ef4444;--warning: #f59e0b}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:linear-gradient(135deg,var(--bg-primary) 0%,#1a2332 100%);color:var(--text-primary);min-height:100vh}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#0f172a80}::-webkit-scrollbar-thumb{background:#8b5cf64d;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#8b5cf680}*{scrollbar-width:thin;scrollbar-color:rgba(139,92,246,.3) rgba(15,23,42,.5)}.gradient-text{background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.glass-heavy{background:#1e293bb3;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(139,92,246,.2);box-shadow:0 8px 32px #0000004d}.btn{padding:.75rem 1.5rem;border-radius:.5rem;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);border:none;font-size:1rem;position:relative;overflow:hidden}.btn:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#ffffff1a;transform:translate(-50%,-50%);transition:width .6s,height .6s}.btn:active:before{width:300px;height:300px}.btn-primary{background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);color:#fff;box-shadow:0 4px 15px #8b5cf64d}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 25px #8b5cf666}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-secondary{background:#1e293bcc;color:var(--text-primary);border:1px solid rgba(139,92,246,.3);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.btn-secondary:hover:not(:disabled){background:#8b5cf626;border-color:var(--primary);transform:translateY(-2px)}.btn-icon{width:44px;height:44px;padding:0;display:flex;align-items:center;justify-content:center;font-size:1.25rem}.input{width:100%;padding:.875rem 1rem;background:#1e293bcc;border:1px solid rgba(139,92,246,.3);border-radius:.5rem;color:var(--text-primary);font-size:1rem;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #8b5cf626;background:#1e293bf2}.input::placeholder{color:var(--text-secondary);opacity:.6}.message{max-width:85%;padding:1rem 1.25rem;border-radius:1rem;animation:messageSlideIn .4s cubic-bezier(.4,0,.2,1);word-wrap:break-word;line-height:1.6}.message-user{background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);color:#fff;margin-left:auto;border-bottom-right-radius:.25rem;box-shadow:0 4px 15px #8b5cf64d}.message-assistant{background:#1e293be6;border:1px solid rgba(139,92,246,.2);border-bottom-left-radius:.25rem;box-shadow:0 4px 15px #0003}@keyframes messageSlideIn{0%{opacity:0;transform:translateY(15px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.typing-indicator{display:flex;gap:.5rem;padding:1rem;align-items:center}.typing-dot{width:10px;height:10px;background:var(--primary);border-radius:50%;animation:typingBounce 1.4s infinite ease-in-out}.typing-dot:nth-child(1){animation-delay:-.32s}.typing-dot:nth-child(2){animation-delay:-.16s}@keyframes typingBounce{0%,80%,to{transform:scale(.8);opacity:.5}40%{transform:scale(1.2);opacity:1}}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;padding:2rem;text-align:center;animation:fadeIn .6s ease}.empty-state-icon{font-size:4rem;margin-bottom:1.5rem;opacity:.3;animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes logoFloat{0%,to{transform:translateY(0);filter:drop-shadow(0 0 20px rgba(139,92,246,.3))}50%{transform:translateY(-15px);filter:drop-shadow(0 0 30px rgba(139,92,246,.6))}}.empty-state-title{font-size:1.5rem;font-weight:700;margin-bottom:.5rem;color:var(--text-primary)}.empty-state-subtitle{font-size:1rem;color:var(--text-secondary);margin-bottom:2rem}.empty-state-suggestions{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;width:100%;max-width:600px}.suggestion-card{padding:1rem;background:#1e293b99;border:1px solid rgba(139,92,246,.2);border-radius:.75rem;cursor:pointer;transition:all .3s ease;text-align:left}.suggestion-card:hover{background:#8b5cf626;border-color:var(--primary);transform:translateY(-2px);box-shadow:0 4px 15px #8b5cf633}.suggestion-icon{font-size:1.5rem;margin-bottom:.5rem}.suggestion-text{font-size:.875rem;color:var(--text-secondary)}.tooltip{position:relative;display:inline-block}.tooltip:after{content:attr(data-tooltip);position:absolute;bottom:100%;left:50%;transform:translate(-50%) translateY(-8px);padding:.5rem .75rem;background:#0f172af2;color:var(--text-primary);font-size:.75rem;border-radius:.375rem;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .3s ease,transform .3s ease;border:1px solid rgba(139,92,246,.3);z-index:1000}.tooltip:hover:after{opacity:1;transform:translate(-50%) translateY(-12px)}.file-upload-area{border:2px dashed rgba(139,92,246,.3);border-radius:.75rem;padding:2rem;text-align:center;background:#1e293b66;transition:all .3s ease;cursor:pointer}.file-upload-area:hover{border-color:var(--primary);background:#8b5cf61a}.file-upload-area.dragging{border-color:var(--primary);background:#8b5cf633;transform:scale(1.02)}.upload-progress{margin-top:1rem}.progress-bar{width:100%;height:8px;background:#1e293bcc;border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:4px;transition:width .3s ease;animation:progressShine 2s infinite}@keyframes progressShine{0%{box-shadow:0 0 10px #8b5cf680}50%{box-shadow:0 0 20px #8b5cf6cc}to{box-shadow:0 0 10px #8b5cf680}}.error-message{padding:1rem 1.25rem;background:#ef44441a;border:1px solid rgba(239,68,68,.3);border-radius:.75rem;color:#fca5a5;display:flex;align-items:center;gap:.75rem;animation:shake .5s ease}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-10px)}75%{transform:translate(10px)}}.error-icon{font-size:1.5rem;flex-shrink:0}.success-message{padding:1rem 1.25rem;background:#10b9811a;border:1px solid rgba(16,185,129,.3);border-radius:.75rem;color:#6ee7b7;display:flex;align-items:center;gap:.75rem;animation:slideDown .4s ease}@keyframes slideDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.hamburger-button{background:#8b5cf626;border:2px solid var(--primary);color:var(--primary);width:44px;height:44px;border-radius:.5rem;font-size:1.5rem;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;flex-shrink:0}.hamburger-button:hover{background:var(--primary);color:#fff;transform:scale(1.05)}.hamburger-button:active{transform:scale(.95)}.sidebar-overlay{position:fixed;inset:0;background:#000000bf;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:99998;animation:fadeIn .3s ease}.sidebar{position:fixed;left:-100%;top:0;bottom:0;width:320px;max-width:85vw;background:#0f172afa;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-right:2px solid var(--primary);z-index:99999;transition:left .3s cubic-bezier(.4,0,.2,1);overflow-y:auto;box-shadow:0 0 50px #000c}.sidebar-open{left:0!important}.sidebar-header{padding:1.25rem 1.5rem;border-bottom:2px solid rgba(139,92,246,.3);background:#1e293bcc;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:10}.sidebar-close{background:transparent;border:none;color:var(--text-secondary);font-size:2rem;cursor:pointer;width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:.5rem;transition:all .3s ease}.sidebar-close:hover{color:#fff;background:#8b5cf633;transform:rotate(90deg)}.sidebar-content{padding:1.5rem}.sidebar-section{margin-bottom:2rem;padding-bottom:1.5rem;border-bottom:1px solid rgba(139,92,246,.2)}.sidebar-section:last-child{border-bottom:none}.agent-button{width:100%;text-align:left;padding:1rem;background:#1e293b99;border:2px solid rgba(139,92,246,.3);border-radius:.5rem;color:var(--text-primary);font-size:.9rem;cursor:pointer;transition:all .3s ease;margin-bottom:.75rem;min-height:48px}.agent-button:hover{background:#8b5cf633;border-color:var(--primary);transform:translate(4px)}.agent-button-active{background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);border-color:var(--primary);font-weight:600;color:#fff;box-shadow:0 4px 20px #8b5cf680}.sidebar-link{display:block;width:100%;text-align:left;padding:1rem;background:transparent;border:2px solid rgba(139,92,246,.3);border-radius:.5rem;color:var(--text-primary);font-size:.9rem;text-decoration:none;cursor:pointer;transition:all .3s ease;margin-bottom:.75rem;min-height:48px}.sidebar-link:hover{background:#8b5cf61a;border-color:var(--primary);transform:translate(4px)}.sidebar-link-danger{border-color:#ef444480;color:#ff6b6b}.sidebar-link-danger:hover{background:#ef44441a;border-color:#ef4444}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}body.sidebar-open{overflow:hidden}@media(max-width:768px){.sidebar{width:280px}.hamburger-button{width:40px;height:40px;font-size:1.25rem}.message{max-width:90%}.empty-state-suggestions{grid-template-columns:1fr}}@media(max-width:480px){.sidebar{width:85vw}.message{max-width:95%;padding:.875rem 1rem}}