@import "https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700&display=swap";:root{--gold:#f5cd15;--gold-dark:#d4b010;--gold-light:#f7d84a;--dark:#313334;--dark-deep:#1a1b1c;--danger:#ef4444;--success:#22c55e;font-family:Montserrat,sans-serif}[data-theme=light]{--bg-primary:#fff;--bg-secondary:#f8f8f8;--bg-chat:#fafafa;--bg-input:#f3f4f6;--text-primary:#313334;--text-secondary:#6b7280;--text-muted:#9ca3af;--border:#e5e5e5;--user-bubble:#313334;--user-text:#fff;--ai-bubble:#fff;--ai-text:#313334;--shadow-sm:0 1px 3px #0000000a;--shadow-md:0 4px 12px #0000000f;--header-bg:#fff}[data-theme=dark]{--bg-primary:#111318;--bg-secondary:#1a1d24;--bg-chat:#111318;--bg-input:#1e2128;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--text-muted:#64748b;--border:#2a2d36;--user-bubble:#f5cd15;--user-text:#313334;--ai-bubble:#1a1d24;--ai-text:#f1f5f9;--shadow-sm:0 1px 3px #0003;--shadow-md:0 4px 12px #0000004d;--header-bg:#1a1d24}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;height:100vh;transition:background .3s,color .3s;overflow:hidden}#root{flex-direction:column;height:100vh;display:flex}.login-page{background:#111318;justify-content:center;align-items:center;height:100vh;display:flex;position:relative;overflow:hidden}.login-page:before{content:"";background:radial-gradient(at 30% 20%,#f5cd150f 0%,#0000 60%),radial-gradient(at 70% 80%,#f5cd150a 0%,#0000 50%);position:absolute;inset:0}.login-card{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);text-align:center;z-index:1;background:#1a1d24e6;border:1px solid #ffffff0f;border-radius:20px;width:90%;max-width:420px;padding:56px 48px;animation:.6s ease-out fade-in-up;position:relative;box-shadow:0 25px 50px #0006}@keyframes fade-in-up{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.login-card .logo-img{opacity:.95;height:40px;margin-bottom:24px}.login-card h1{color:#f1f5f9;letter-spacing:-.02em;margin-bottom:6px;font-size:28px;font-weight:800}.login-card .subtitle{color:#94a3b8;margin-bottom:36px;font-size:15px}.login-btn{background:var(--gold);width:100%;color:var(--dark);cursor:pointer;border:none;border-radius:12px;justify-content:center;align-items:center;gap:12px;padding:16px 24px;font-family:Inter,sans-serif;font-size:16px;font-weight:700;text-decoration:none;transition:all .2s;display:flex;box-shadow:0 0 20px #f5cd1526}.login-btn:hover{background:var(--gold-light);transform:translateY(-2px);box-shadow:0 0 40px #f5cd154d}.login-note{color:#64748b;margin-top:20px;font-size:13px}.chat-layout{background:var(--bg-chat);flex-direction:column;height:100vh;transition:background .3s;display:flex}.chat-header{background:var(--header-bg);border-bottom:1px solid var(--border);box-shadow:var(--shadow-sm);justify-content:space-between;align-items:center;padding:12px 24px;transition:all .3s;display:flex}.chat-header-left{align-items:center;gap:12px;display:flex}.chat-header-left .header-logo{object-fit:contain;width:auto;height:24px}.invert{filter:brightness(0)}.chat-header h1{color:var(--text-primary);letter-spacing:-.01em;font-size:17px;font-weight:700}.chat-header .badge{background:var(--gold);color:var(--dark);letter-spacing:.04em;text-transform:uppercase;border-radius:20px;padding:3px 10px;font-family:Inter,sans-serif;font-size:10px;font-weight:700}.header-actions{align-items:center;gap:10px;display:flex}.user-info{align-items:center;gap:12px;display:flex}.user-info span{color:var(--text-secondary);font-size:14px;font-weight:500}.icon-btn{width:36px;height:36px;color:var(--text-secondary);border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:10px;justify-content:center;align-items:center;font-size:16px;transition:all .2s;display:flex}.icon-btn:hover{color:var(--gold);border-color:var(--gold);background:#f5cd150f}.new-chat-btn,.logout-btn{color:var(--text-secondary);border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:10px;padding:7px 14px;font-family:Inter,sans-serif;font-size:13px;font-weight:500;text-decoration:none;transition:all .2s}.new-chat-btn:hover{color:var(--text-primary);border-color:var(--gold);background:#f5cd150f}.logout-btn:hover{color:var(--danger);border-color:var(--danger)}.chat-body{flex:1;display:flex;overflow:hidden}.messages-container{flex-direction:column;flex:1;gap:16px;width:100%;max-width:900px;margin:0 auto;padding:24px;display:flex;overflow-y:auto}.message{white-space:pre-wrap;word-wrap:break-word;border-radius:16px;max-width:85%;padding:14px 18px;font-size:15px;line-height:1.6;transition:background .3s,color .3s;animation:.3s ease-out fade-in-up}.message.user{background:var(--user-bubble);color:var(--user-text);box-shadow:var(--shadow-sm);border-bottom-right-radius:6px;align-self:flex-end}.message.assistant{background:var(--ai-bubble);color:var(--ai-text);border:1px solid var(--border);box-shadow:var(--shadow-sm);border-bottom-left-radius:6px;align-self:flex-start}.message .sources{border-top:1px solid var(--border);color:var(--text-secondary);margin-top:10px;padding-top:10px;font-size:12px}.sources-label{margin-bottom:6px;font-weight:600}.sources-list{flex-wrap:wrap;gap:6px;display:flex}.source-chip{background:var(--bg-input);border:1px solid var(--border);color:var(--text-secondary);border-radius:8px;align-items:center;gap:4px;padding:4px 10px;font-size:12px;font-weight:500;text-decoration:none;transition:all .2s;display:inline-flex}.source-chip:hover{border-color:var(--gold);color:var(--text-primary);background:#f5cd150f}.source-read-badge{background:var(--success);color:#fff;border-radius:4px;margin-left:2px;padding:1px 5px;font-size:10px;font-weight:600}.message .sources a{color:var(--gold-dark);font-weight:600;text-decoration:none}[data-theme=dark] .message .sources a{color:var(--gold)}.message .sources a:hover{text-decoration:underline}.typing-indicator{background:var(--ai-bubble);border:1px solid var(--border);color:var(--text-secondary);box-shadow:var(--shadow-sm);border-radius:16px 16px 16px 6px;align-self:flex-start;padding:14px 18px;font-size:14px;animation:.3s ease-out fade-in-up}.typing-indicator span{animation:1.4s infinite pulse}@keyframes pulse{0%,to{opacity:.3}50%{opacity:1}}.input-area{background:var(--header-bg);border-top:1px solid var(--border);padding:16px 24px 20px;transition:all .3s}.input-wrapper{gap:12px;max-width:900px;margin:0 auto;display:flex}.input-wrapper textarea{background:var(--bg-input);color:var(--text-primary);border:1px solid var(--border);resize:none;border-radius:14px;outline:none;flex:1;min-height:50px;max-height:200px;padding:14px 18px;font-family:Montserrat,sans-serif;font-size:15px;transition:all .2s}.input-wrapper textarea:focus{border-color:var(--gold);box-shadow:0 0 0 3px #f5cd151f}.input-wrapper textarea::placeholder{color:var(--text-muted)}.send-btn{background:var(--gold);color:var(--dark);cursor:pointer;white-space:nowrap;border:none;border-radius:14px;padding:14px 24px;font-family:Inter,sans-serif;font-size:15px;font-weight:700;transition:all .2s;box-shadow:0 2px 8px #f5cd1526}.send-btn:hover:not(:disabled){background:var(--gold-light);transform:translateY(-1px);box-shadow:0 4px 16px #f5cd1540}.send-btn:disabled{opacity:.35;cursor:not-allowed}.generated-download-chip{color:var(--text);background:#4caf502e;border:1px solid #4caf508c;border-radius:8px;align-items:center;gap:6px;margin:4px 4px 4px 0;padding:8px 14px;font-weight:500;text-decoration:none;transition:background .12s;display:inline-flex}.generated-download-chip:hover{background:#4caf5052}.generated-files-section{border-bottom:1px solid var(--border);padding:12px 16px}.generated-files-list{flex-direction:column;gap:4px;margin-top:6px;display:flex}.generated-file-item{align-items:center;gap:4px;display:flex}.generated-file-link{background:var(--bg-elevated,#ffffff0a);color:var(--text);border-radius:6px;flex:1;align-items:center;gap:8px;padding:8px 10px;font-size:13px;text-decoration:none;display:flex;overflow:hidden}.generated-file-link:hover{background:#4caf5029}.generated-file-name{white-space:nowrap;text-overflow:ellipsis;flex:1;overflow:hidden}.generated-file-meta{color:var(--text-muted,#ffffff8c);font-size:11px}.generated-file-delete{color:var(--text-muted,#ffffff73);cursor:pointer;background:0 0;border:none;border-radius:4px;padding:6px}.generated-file-delete:hover{color:#ff5252;background:#ff52521f}.attachment-uploading-banner{max-width:900px;color:var(--text);text-align:center;background:#ffc1072e;border:1px solid #ffc10780;border-radius:8px;margin:0 auto 10px;padding:8px 14px;font-size:13px;font-weight:500;animation:1.6s ease-in-out infinite pulse-bg}@keyframes pulse-bg{0%,to{background:#ffc1072e}50%{background:#ffc10752}}.attachment-bar{flex-wrap:wrap;align-items:center;gap:8px;max-width:900px;margin:0 auto 10px;display:flex}.attachment-chip{background:var(--bg-input);border:1px solid var(--border);max-width:280px;color:var(--text-primary);border-radius:999px;align-items:center;gap:8px;padding:6px 10px 6px 12px;font-size:13px;display:inline-flex}.attachment-chip.attachment-uploading{opacity:.7;border-style:dashed}.attachment-chip.attachment-error{color:#d9534f;border-color:#d9534f}.attachment-icon{font-size:14px;line-height:1}.attachment-name{text-overflow:ellipsis;white-space:nowrap;max-width:150px;overflow:hidden}.attachment-meta{color:var(--text-muted);margin-left:4px;font-size:11px}.attachment-remove{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;margin-left:2px;padding:2px;display:inline-flex}.attachment-remove:hover{color:var(--text-primary);background:#ffffff14}.attachment-error{color:#d9534f;flex-basis:100%;font-size:12px}.attach-btn{background:var(--bg-input);width:44px;min-width:44px;height:50px;color:var(--text-primary);border:1px solid var(--border);cursor:pointer;border-radius:14px;justify-content:center;align-items:center;padding:0;transition:all .2s;display:inline-flex}.attach-btn:hover:not(:disabled){border-color:var(--gold);color:var(--gold)}.attach-btn:disabled{opacity:.35;cursor:not-allowed}.welcome{text-align:center;color:var(--text-secondary);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:12px;animation:.5s ease-out fade-in-up;display:flex}.welcome h2{color:var(--text-primary);letter-spacing:-.02em;font-size:26px;font-weight:700}.welcome p{max-width:480px;font-size:15px;line-height:1.6}.welcome-logo{margin-bottom:12px}.welcome-logo-img{object-fit:contain;object-position:center;width:126px;height:40px}.welcome-logo svg{width:36px;height:36px}.quick-actions{flex-wrap:wrap;justify-content:center;gap:10px;margin-top:20px;display:flex}.quick-action{background:var(--ai-bubble);border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;border-radius:12px;padding:10px 18px;font-family:Inter,sans-serif;font-size:13px;font-weight:500;transition:all .2s}.quick-action:hover{border-color:var(--gold);color:var(--text-primary);background:#f5cd150f;transform:translateY(-1px)}.messages-container::-webkit-scrollbar{width:5px}.messages-container::-webkit-scrollbar-track{background:0 0}.messages-container::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.messages-container::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.files-panel{background:var(--bg-secondary);border-right:1px solid var(--border);flex-direction:column;width:320px;min-width:320px;animation:.2s ease-out slide-in;display:flex;overflow:hidden}@keyframes slide-in{0%{opacity:0;transform:translate(-10px)}to{opacity:1;transform:translate(0)}}.files-panel-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:14px 16px;display:flex}.files-panel-header h3{color:var(--text-primary);font-size:14px;font-weight:600}.close-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:4px;font-size:16px;transition:all .2s}.close-btn:hover{color:var(--text-primary);background:var(--bg-input)}.files-search{border-bottom:1px solid var(--border);gap:8px;padding:12px 16px;display:flex}.files-search input{background:var(--bg-input);border:1px solid var(--border);color:var(--text-primary);border-radius:8px;outline:none;flex:1;padding:8px 12px;font-family:Montserrat,sans-serif;font-size:13px;transition:border-color .2s}.files-search input:focus{border-color:var(--gold)}.files-search input::placeholder{color:var(--text-muted)}.files-search button{background:var(--gold);color:var(--dark);cursor:pointer;border:none;border-radius:8px;padding:8px 14px;font-family:Inter,sans-serif;font-size:13px;font-weight:600;transition:all .2s}.files-search button:hover:not(:disabled){background:var(--gold-light)}.files-search button:disabled{opacity:.4;cursor:not-allowed}.files-list{flex:1;padding:8px;overflow-y:auto}.files-section-label{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);padding:8px 8px 4px;font-size:11px;font-weight:600}.files-loading,.files-empty{text-align:center;color:var(--text-muted);padding:24px;font-size:13px}.file-card-wrapper{cursor:pointer;border-radius:10px;transition:background .15s}.file-card-wrapper:hover{background:#f5cd150f}.file-card{color:inherit;align-items:center;gap:10px;padding:10px 12px;text-decoration:none;display:flex}.file-icon{flex-shrink:0;font-size:22px}.file-info{flex-direction:column;min-width:0;display:flex}.file-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:500;overflow:hidden}.file-meta{color:var(--text-muted);margin-top:2px;font-size:11px}.icon-btn.active{color:var(--gold);border-color:var(--gold);background:#f5cd151a}.conversations-panel{background:var(--bg-secondary);border-right:1px solid var(--border);flex-direction:column;width:300px;min-width:300px;animation:.2s ease-out slide-in;display:flex;overflow:hidden}.conversations-panel-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:14px 16px;display:flex}.conversations-panel-header h3{color:var(--text-primary);font-size:14px;font-weight:600}.conversations-list{flex:1;padding:8px;overflow-y:auto}.conversations-empty{text-align:center;color:var(--text-muted);padding:24px;font-size:13px}.conversation-item{cursor:pointer;border-radius:10px;justify-content:space-between;align-items:center;gap:8px;padding:10px 12px;transition:background .15s;display:flex}.conversation-item:hover{background:#f5cd150f}.conversation-item.active{background:#f5cd151a;border:1px solid #f5cd1533}.conversation-info{flex-direction:column;flex:1;min-width:0;display:flex}.conversation-title{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:500;overflow:hidden}.conversation-meta{color:var(--text-muted);margin-top:2px;font-size:11px}.conversation-actions{opacity:0;gap:2px;transition:opacity .15s;display:flex}.conversation-item:hover .conversation-actions{opacity:1}.conv-action-btn{cursor:pointer;background:0 0;border:none;border-radius:6px;padding:4px 6px;font-size:13px;line-height:1;transition:background .15s}.conv-action-btn:hover{background:var(--bg-input)}.conv-action-btn.danger:hover{background:#ef444426}.conversation-rename-input{background:var(--bg-input);border:1px solid var(--gold);color:var(--text-primary);border-radius:6px;outline:none;flex:1;padding:6px 10px;font-family:Montserrat,sans-serif;font-size:13px}.conversations-list::-webkit-scrollbar{width:4px}.conversations-list::-webkit-scrollbar-track{background:0 0}.conversations-list::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}