@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";:root{--primary:#3b82f6;--primary-dark:#2563eb;--primary-light:#dbeafe;--primary-lighter:#eff6ff;--dark:#1e293b;--dark-hover:#334155;--text:#1a1a1a;--text-mid:#475569;--text-light:#64748b;--text-lighter:#94a3b8;--bg:#f9fafb;--white:#fff;--border:#e5e7eb;--border-light:#f1f5f9;--success:#10b981;--danger:#ef4444;--amber:#f59e0b;--dots:url("data:image/svg+xml,%3Csvg width='20' height='20' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='10' cy='10' r='1.2' fill='%23d1d5db' fill-opacity='0.5'/%3E%3C/svg%3E")}*{box-sizing:border-box;margin:0;padding:0}body{color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font-family:Inter,sans-serif}a{color:inherit;text-decoration:none}input,button,textarea{font-family:inherit}@keyframes fadeUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.animate-in{animation:.4s both fadeUp}.auth-page{background-color:#fff;background-image:var(--dots);background-size:20px 20px;justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.auth-box{text-align:center;width:100%;max-width:420px}.auth-logo{color:var(--text);letter-spacing:-.5px;margin-bottom:28px;font-size:24px;font-weight:800;display:inline-block}.auth-logo span{color:var(--primary)}.auth-card{border:1px solid var(--border);text-align:left;background:#fff;border-radius:16px;padding:36px;box-shadow:0 8px 30px #0000000f}.auth-card h2{letter-spacing:-.5px;margin-bottom:4px;font-size:28px;font-weight:700}.auth-sub{color:var(--text-light);margin-bottom:24px;font-size:14px}.auth-error{color:var(--danger);background:#fef2f2;border:1px solid #fecaca;border-radius:10px;margin-bottom:16px;padding:10px 14px;font-size:13px;font-weight:500}.auth-card label{color:var(--text-mid);margin:16px 0 6px;font-size:13px;font-weight:600;display:block}.auth-card label:first-of-type{margin-top:0}.auth-card input{border:1.5px solid var(--border);background:var(--bg);border-radius:10px;outline:none;width:100%;padding:12px 16px;font-size:15px;transition:all .2s}.auth-card input:focus{border-color:var(--dark);background:#fff;box-shadow:0 0 0 3px #1e293b0f}.auth-card input::placeholder{color:var(--text-lighter)}.auth-btn{background:var(--dark);color:#fff;cursor:pointer;border:none;border-radius:100px;width:100%;margin-top:20px;padding:13px;font-size:15px;font-weight:600;transition:all .2s}.auth-btn:hover{background:var(--dark-hover);transform:translateY(-1px)}.auth-btn:disabled{cursor:not-allowed;background:#94a3b8;transform:none}.auth-trust{text-align:center;color:var(--text-lighter);margin-top:16px;font-size:12px}.auth-switch{color:var(--text-light);margin-top:20px;font-size:14px}.auth-switch a{color:var(--dark);font-weight:600;text-decoration:underline}.workspace{background:var(--white);height:100vh;display:flex}.workspace-sidebar{border-right:2px solid var(--border);background:var(--white);flex-shrink:0;width:250px;overflow-y:auto}.workspace-chat{border-right:2px solid var(--border);background-color:var(--bg);background-image:var(--dots);background-size:20px 20px;flex-direction:column;flex:1;min-width:0;display:flex}.workspace-editor{background:var(--bg);flex-direction:column;flex:1;min-width:0;display:flex}.sidebar{flex-direction:column;height:100%;padding:20px 14px;display:flex}.sb-logo{color:var(--text);letter-spacing:-.5px;border-bottom:1px solid var(--border);margin-bottom:16px;padding:0 8px 16px;font-size:20px;font-weight:800;display:block}.sb-logo span{color:var(--primary)}.sb-new{background:var(--dark);color:#fff;cursor:pointer;border:none;border-radius:100px;width:100%;margin-bottom:16px;padding:12px;font-size:14px;font-weight:600;transition:all .2s}.sb-new:hover{background:var(--dark-hover);transform:translateY(-1px)}.sb-label{color:var(--text-mid);text-transform:uppercase;letter-spacing:.8px;padding:12px 8px 8px;font-size:11px;font-weight:800}.sb-item{text-align:left;width:100%;color:var(--text-light);cursor:pointer;background:0 0;border:none;border-radius:10px;align-items:center;gap:10px;margin-bottom:2px;padding:11px 12px;font-size:14px;font-weight:500;transition:all .15s;display:flex}.sb-item:hover{background:var(--bg);color:var(--text-mid)}.sb-item.active{background:var(--primary-lighter);color:var(--primary);font-weight:700}.sb-item span{text-align:center;width:20px;font-size:16px}.sb-gap{flex:1}.sb-upgrade{background:var(--dark);color:#fff;text-align:center;border-radius:100px;margin-top:12px;padding:11px;font-size:13px;font-weight:600;transition:all .2s;display:block}.sb-upgrade:hover{background:var(--dark-hover)}.sb-draft{border-bottom:1px solid var(--border-light);cursor:pointer;border-radius:0;margin-bottom:0;padding:12px;transition:all .15s}.sb-draft:last-child{border-bottom:none}.sb-draft:hover{background:var(--bg);border-radius:8px}.sb-draft.active{background:var(--primary-lighter);border-radius:8px}.sb-draft-title{color:var(--text);white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:600;overflow:hidden}.sb-draft-meta{justify-content:space-between;align-items:center;margin-top:2px;display:flex}.sb-draft-meta span{color:var(--text-lighter);font-size:11px}.sb-draft-del{color:var(--text-lighter);cursor:pointer;opacity:0;background:0 0;border:none;border-radius:4px;padding:2px 4px;font-size:12px;transition:all .15s}.sb-draft:hover .sb-draft-del{opacity:1}.sb-draft-del:hover{color:var(--danger);background:#fef2f2}.sidebar>div:last-child{border-top:1px solid var(--border);margin-top:8px;padding-top:12px}.sidebar>div:last-child .sb-item{color:var(--text-mid);font-weight:600}.chat-area{flex-direction:column;flex:1;display:flex;overflow:hidden}.chat-msgs{flex:1;padding:24px;overflow-y:auto}.chat-welcome{text-align:center;padding:60px 20px 40px}.chat-welcome .w-icon{margin-bottom:14px;font-size:44px}.chat-welcome h2{letter-spacing:-.5px;margin-bottom:6px;font-size:24px;font-weight:800}.chat-welcome p{color:var(--text-light);margin-bottom:24px;font-size:15px}.chat-sugs{flex-wrap:wrap;justify-content:center;gap:8px;max-width:520px;margin:0 auto;display:flex}.chat-sug{border:1px solid var(--border);color:var(--text-mid);cursor:pointer;background:var(--white);border-radius:100px;padding:9px 16px;font-size:12px;font-weight:500;transition:all .2s}.chat-sug:hover{border-color:var(--dark);color:var(--text);transform:translateY(-1px);box-shadow:0 2px 8px #0000000a}.chat-msg{max-width:85%;margin-bottom:16px;animation:.3s both fadeUp}.chat-msg.user{margin-left:auto}.msg-who{color:var(--text-lighter);text-transform:uppercase;letter-spacing:.8px;margin-bottom:4px;font-size:11px;font-weight:800}.chat-msg.user .msg-who{text-align:right}.msg-bubble{word-break:break-word;border-radius:14px;padding:12px 16px;font-size:13px;line-height:1.75}.chat-msg.user .msg-bubble{background:var(--dark);color:#fff;border-bottom-right-radius:4px}.chat-msg.ai .msg-bubble{background:var(--white);color:var(--text-mid);border:1px solid var(--border);border-bottom-left-radius:4px;box-shadow:0 1px 4px #00000008}.chat-msg.ai .msg-bubble strong{color:var(--text)}.chat-msg.ai .msg-bubble pre{background:var(--bg);border:1px solid var(--border);border-radius:8px;margin:8px 0;padding:10px;font-size:12px;overflow-x:auto}.msg-sources{color:var(--text-lighter);margin-top:6px;font-size:11px}.thinking:after{content:"";animation:1.5s infinite dots}@keyframes dots{0%{content:""}25%{content:"."}50%{content:".."}75%{content:"..."}}.chat-input{background:var(--white);border-top:2px solid var(--border);flex-shrink:0;padding:16px 20px}.chat-input-row{gap:10px;display:flex}.chat-input-row input{border:1.5px solid var(--border);background:var(--bg);border-radius:100px;outline:none;flex:1;padding:13px 20px;font-size:14px;transition:all .2s}.chat-input-row input:focus{border-color:var(--dark);background:#fff;box-shadow:0 0 0 3px #1e293b0f}.chat-input-row input::placeholder{color:var(--text-lighter)}.chat-send{background:var(--dark);color:#fff;cursor:pointer;white-space:nowrap;border:none;border-radius:100px;padding:13px 24px;font-size:14px;font-weight:700;transition:all .2s}.chat-send:hover{background:var(--dark-hover)}.chat-send:disabled{cursor:not-allowed;background:#94a3b8}.chat-upload-btn{border:1.5px solid var(--border);background:var(--white);cursor:pointer;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;font-size:18px;transition:all .2s;display:flex}.chat-upload-btn:hover{border-color:var(--dark);background:var(--bg)}.editor-panel{flex-direction:column;height:100%;display:flex}.editor-top{border-bottom:1px solid var(--border);background:var(--white);justify-content:space-between;align-items:center;padding:14px 24px;display:flex}.editor-top h3{color:var(--text);text-transform:uppercase;letter-spacing:1px;font-size:12px;font-weight:800}.editor-actions{align-items:center;gap:10px;display:flex}.unsaved-dot{color:var(--amber);font-size:10px}.editor-save-btn{background:var(--dark);color:#fff;cursor:pointer;border:none;border-radius:100px;padding:8px 20px;font-size:13px;font-weight:600;transition:all .2s}.editor-save-btn:hover{background:var(--dark-hover)}.editor-save-btn:disabled{cursor:not-allowed;background:#94a3b8}.editor-export-btn{color:var(--text-mid);border:1px solid var(--border);cursor:pointer;background:#fff;border-radius:100px;padding:8px 18px;font-size:13px;font-weight:600;transition:all .2s}.editor-export-btn:hover{border-color:var(--dark);color:var(--text)}.editor-body{background-color:var(--bg);background-image:var(--dots);background-size:20px 20px;flex:1;padding:24px;overflow-y:auto}.editor-paper{background:var(--white);border:1px solid var(--border);border-radius:8px;max-width:680px;min-height:600px;margin:0 auto;padding:40px 48px;box-shadow:0 4px 16px #0000000a}.editor-paper .ProseMirror{outline:none;min-height:500px;font-family:Inter,sans-serif;font-size:14px;line-height:1.7}.editor-paper .ProseMirror h1{margin:16px 0 8px;font-size:22px;font-weight:700}.editor-paper .ProseMirror h2{margin:14px 0 6px;font-size:18px;font-weight:600}.editor-paper .ProseMirror h3{margin:12px 0 6px;font-size:16px;font-weight:600}.editor-paper .ProseMirror p{margin:0 0 8px}.editor-paper .ProseMirror ul,.editor-paper .ProseMirror ol{margin:0 0 8px 20px}.editor-paper .ProseMirror:focus{outline:none}.chat-form{background:var(--white);border:1px solid var(--border);border-radius:14px;margin:8px 0;padding:20px;box-shadow:0 2px 8px #00000008}.chat-form-title{color:var(--text);margin-bottom:14px;font-size:14px;font-weight:700}.chat-form-field{margin-bottom:10px}.chat-form-field label{color:var(--text-mid);margin-bottom:4px;font-size:12px;font-weight:600;display:block}.chat-form-field input{border:1.5px solid var(--border);background:var(--bg);border-radius:10px;outline:none;width:100%;padding:10px 14px;font-size:13px;transition:all .2s}.chat-form-field input:focus{border-color:var(--dark);background:#fff}.chat-form-btn{background:var(--dark);color:#fff;cursor:pointer;border:none;border-radius:100px;width:100%;margin-top:8px;padding:11px;font-size:13px;font-weight:600}.chat-form-btn:hover{background:var(--dark-hover)}.chat-doc-block{background:#0f172a;border-radius:12px;margin:8px 0;overflow:hidden}.chat-doc-header{background:#0a0f1a;border-bottom:1px solid #ffffff0f;justify-content:space-between;align-items:center;padding:10px 16px;display:flex}.chat-doc-header span{color:#64748b;font-size:12px;font-weight:600}.chat-doc-insert{background:var(--dark-hover);color:#fff;cursor:pointer;border:none;border-radius:100px;padding:6px 14px;font-size:11px;font-weight:600}.chat-doc-insert:hover{background:#475569}.chat-doc-content{color:#e2e8f0;white-space:pre-wrap;max-height:400px;padding:16px;font-family:Courier New,monospace;font-size:12px;line-height:1.8;overflow-y:auto}.upload-wrap{flex:1;padding:32px 28px;overflow-y:auto}.upload-box{border:2px dashed var(--border);text-align:center;cursor:pointer;background:var(--white);border-radius:16px;max-width:560px;margin:40px auto;padding:52px 32px;transition:all .25s}.upload-box:hover{border-color:var(--dark)}.upload-box .u-icon{margin-bottom:12px;font-size:40px}.upload-box h3{margin-bottom:8px;font-size:18px;font-weight:700}.upload-box p{color:var(--text-light);font-size:14px}.upload-loading{text-align:center;color:var(--text-light);margin-top:24px;font-size:15px}.upload-result{background:var(--white);border:1px solid var(--border);max-width:780px;color:var(--text-mid);border-radius:16px;max-height:500px;margin:24px auto 0;padding:24px;font-size:14px;line-height:1.75;overflow-y:auto}.upload-result strong{color:var(--text)}.upload-result-head{border-bottom:1px solid var(--border);align-items:center;gap:10px;margin-bottom:16px;padding-bottom:12px;display:flex}.upload-type{background:var(--primary-lighter);color:var(--primary);border-radius:100px;padding:3px 10px;font-size:11px;font-weight:600}.upload-error{color:var(--danger)}.recover-bar{z-index:200;color:#92400e;background:#fef3c7;border-bottom:1px solid #f59e0b;align-items:center;gap:12px;padding:10px 20px;font-size:13px;display:flex;position:fixed;top:0;left:0;right:0}.recover-bar button{cursor:pointer;border:none;border-radius:100px;padding:6px 14px;font-size:12px;font-weight:600}.recover-bar button:first-of-type{background:var(--dark);color:#fff}.recover-dismiss{color:#92400e;background:0 0}@media (width<=768px){.workspace{flex-direction:column}.workspace-sidebar{display:none}.workspace-chat{border-right:none;flex:1}.workspace-editor{display:none}.chat-msg{max-width:92%}.chat-msgs{padding:14px}.chat-input{padding:10px 12px}.chat-input-row{gap:8px}.chat-input-row input{padding:11px 16px;font-size:14px}.chat-send{padding:11px 16px;font-size:13px}.chat-upload-btn{width:38px;height:38px;font-size:16px}.chat-welcome{padding:30px 16px 20px}.chat-welcome .w-icon{font-size:36px}.chat-welcome h2{font-size:20px}.chat-welcome p{margin-bottom:20px;font-size:13px}.chat-sugs{gap:6px}.chat-sug{padding:8px 12px;font-size:11px}.editor-paper{min-height:300px;padding:20px}.auth-card{padding:28px 24px}.auth-card h2{font-size:22px}}.modal-overlay{z-index:300;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0006;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-box{background:#fff;border-radius:16px;width:90%;max-width:400px;padding:32px;animation:.3s fadeUp;box-shadow:0 20px 60px #00000026}.modal-box h3{margin-bottom:8px;font-size:18px;font-weight:700}.modal-box p{color:var(--text-light);margin-bottom:20px;font-size:14px;line-height:1.6}.modal-actions{flex-direction:column;gap:8px;display:flex}.modal-btn-primary{background:var(--dark);color:#fff;cursor:pointer;border:none;border-radius:100px;padding:12px;font-size:14px;font-weight:600}.modal-btn-primary:hover{background:var(--dark-hover)}.modal-btn-secondary{background:var(--bg);color:var(--text);border:1px solid var(--border);cursor:pointer;border-radius:100px;padding:12px;font-size:14px;font-weight:600}.modal-btn-secondary:hover{border-color:var(--dark)}.modal-btn-ghost{color:var(--text-lighter);cursor:pointer;background:0 0;border:none;padding:8px;font-size:13px}.billing-panel{flex:1;padding:40px 32px;overflow-y:auto}.billing-panel h2{margin-bottom:6px;font-size:24px;font-weight:700}.billing-sub{color:var(--text-light);margin-bottom:12px;font-size:14px}.billing-sub strong{color:var(--text)}.billing-bar{background:var(--border-light);border-radius:4px;height:6px;margin-bottom:24px;overflow:hidden}.billing-msg{color:var(--danger);background:#fef2f2;border-radius:10px;margin-bottom:16px;padding:10px 14px;font-size:13px;font-weight:600}.billing-msg.success{color:var(--success);background:#ecfdf5}.billing-cards{gap:16px;display:flex}.b-card{border:1px solid var(--border);background:#fff;border-radius:16px;flex:1;padding:24px;position:relative}.b-card.pop{border:2px solid var(--dark)}.b-card.current{border-color:var(--primary)}.b-tag{background:var(--dark);color:#fff;border-radius:100px;padding:3px 14px;font-size:11px;font-weight:700;position:absolute;top:-10px;left:50%;transform:translate(-50%)}.b-name{margin-bottom:4px;font-size:16px;font-weight:700}.b-price{letter-spacing:-1.5px;margin-bottom:4px;font-size:36px;font-weight:800}.b-price span{color:var(--text-lighter);font-size:14px;font-weight:400}.b-info{color:var(--text-light);margin-bottom:16px;font-size:13px;line-height:1.6}.b-current{color:var(--primary);font-size:13px;font-weight:600}.b-btn{background:var(--dark);color:#fff;cursor:pointer;border:none;border-radius:100px;width:100%;padding:10px;font-size:13px;font-weight:600}.b-btn:hover{background:var(--dark-hover)}.b-btn-outline{width:100%;color:var(--text);border:1.5px solid var(--border);cursor:pointer;background:#fff;border-radius:100px;padding:10px;font-size:13px;font-weight:600}.b-btn-outline:hover{border-color:var(--dark)}@media (width<=768px){.billing-cards{flex-direction:column}.billing-panel{padding:20px 16px}}.back-btn{color:var(--text-light);cursor:pointer;background:0 0;border:none;margin-bottom:16px;padding:0;font-family:inherit;font-size:14px;font-weight:600}.back-btn:hover{color:var(--text)}