@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--primary: #2563eb;--primary-dark: #1d4ed8;--bg: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--text: #f1f5f9;--text-secondary: #94a3b8;--border: #334155;--success: #10b981;--error: #ef4444;--warning: #f59e0b}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(135deg,var(--bg) 0%,var(--bg-secondary) 100%)}.login-box{background:var(--bg-secondary);border:1px solid var(--border);border-radius:16px;padding:40px;width:100%;max-width:400px;box-shadow:0 20px 60px #00000080}.login-header{text-align:center;margin-bottom:32px}.login-icon{font-size:48px;margin-bottom:16px}.login-header h1{font-size:1.5rem;font-weight:700;margin-bottom:8px}.login-header p{color:var(--text-secondary);font-size:.9rem}.input-group{margin-bottom:16px}.input-group input{width:100%;padding:14px 16px;background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:1rem;outline:none;transition:border-color .2s}.input-group input:focus{border-color:var(--primary)}.error-message{background:#ef44441a;border:1px solid var(--error);color:var(--error);padding:10px 14px;border-radius:8px;margin-bottom:16px;font-size:.9rem}.login-btn{width:100%;padding:14px;background:var(--primary);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:background .2s}.login-btn:hover{background:var(--primary-dark)}.login-footer{text-align:center;margin-top:32px;color:var(--text-secondary);font-size:.85rem}.dashboard{min-height:100vh}.dashboard-header{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;background:var(--bg-secondary);border-bottom:1px solid 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.2s}.project-card:hover{border-color:var(--primary);transform:translate(4px)}.project-icon{width:48px;height:48px;background:var(--primary);color:#fff;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.25rem;font-weight:700;flex-shrink:0}.project-info{flex:1}.project-info h3{font-size:1.1rem;font-weight:600;margin-bottom:4px}.project-info p{color:var(--text-secondary);font-size:.9rem;margin-bottom:6px}.project-meta{color:var(--text-secondary);font-size:.8rem}.project-arrow{color:var(--text-secondary);font-size:1.25rem}.project-chat{height:100vh;display:flex;flex-direction:column}.chat-header{display:flex;justify-content:space-between;align-items:center;padding:12px 20px;background:var(--bg-secondary);border-bottom:1px solid var(--border)}.back-btn{background:transparent;color:var(--text-secondary);border:none;cursor:pointer;font-size:.9rem;margin-right:16px}.back-btn:hover{color:var(--text)}.project-title{display:flex;align-items:center;gap:12px}.project-icon-small{width:36px;height:36px;background:var(--primary);color:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:700}.project-title h1{font-size:1rem;font-weight:600}.project-title p{font-size:.8rem;color:var(--text-secondary)}.header-right{display:flex;gap:12px}.sidebar-toggle{background:transparent;border:1px solid var(--border);color:var(--text);padding:8px 12px;border-radius:6px;cursor:pointer}.chat-container{flex:1;display:flex;overflow:hidden}.chat-main{flex:1;display:flex;flex-direction:column;overflow:hidden}.messages-container{flex:1;overflow-y:auto;padding:24px;display:flex;flex-direction:column;gap:16px}.empty-chat{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:var(--text-secondary)}.empty-icon{font-size:48px;margin-bottom:16px}.empty-chat h2{font-size:1.25rem;color:var(--text);margin-bottom:8px}.message{max-width:75%;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message.user{align-self:flex-end}.message.assistant{align-self:flex-start}.message-content{padding:14px 18px;border-radius:16px;font-size:.95rem;line-height:1.6}.message.user .message-content{background:var(--primary);color:#fff;border-bottom-right-radius:4px}.message.assistant .message-content{background:var(--bg-secondary);border:1px solid var(--border);border-bottom-left-radius:4px}.message.error .message-content{background:#ef44441a;border-color:var(--error)}.message-content p{margin-bottom:10px}.message-content p:last-child{margin-bottom:0}.message-content h1,.message-content h2,.message-content h3{margin:12px 0 8px;font-size:1rem}.message-content ul,.message-content ol{margin-left:20px;margin-bottom:10px}.message-content code{background:var(--bg);padding:2px 6px;border-radius:4px;font-size:.85rem}.message-content pre{background:var(--bg);padding:12px;border-radius:8px;overflow-x:auto;margin:10px 0}.context-used{font-size:.75rem;color:var(--text-secondary);margin-top:8px}.message-time{font-size:.7rem;color:var(--text-secondary);margin-top:6px}.typing{display:flex;gap:4px;padding:16px 20px}.typing span{width:8px;height:8px;background:var(--primary);border-radius:50%;animation:typing 1.4s infinite}.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}@keyframes typing{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-8px);opacity:1}}.input-area{padding:16px 24px;background:var(--bg-secondary);border-top:1px solid var(--border)}.upload-area{background:var(--bg);border:2px dashed var(--border);border-radius:8px;padding:12px;margin-bottom:12px;text-align:center}.upload-area input{font-size:.85rem;color:var(--text)}.upload-area p{font-size:.75rem;color:var(--text-secondary);margin-top:6px}.input-area form{display:flex;gap:12px}.attach-btn{background:var(--bg);border:1px solid var(--border);color:var(--text);padding:12px 16px;border-radius:8px;cursor:pointer;font-size:1.1rem}.attach-btn:hover{background:var(--bg-tertiary)}.input-area textarea{flex:1;padding:12px 16px;background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:.95rem;font-family:Inter,sans-serif;outline:none;resize:none;min-height:48px;max-height:150px;line-height:1.5;overflow-y:auto}.input-area textarea:focus{border-color:var(--primary)}.input-area button[type=submit]{background:var(--primary);color:#fff;border:none;padding:12px 24px;border-radius:8px;font-weight:500;cursor:pointer;transition:background .2s}.input-area button[type=submit]:hover:not(:disabled){background:var(--primary-dark)}.input-area button[type=submit]:disabled{opacity:.5;cursor:not-allowed}.chat-sidebar{width:280px;background:var(--bg-secondary);border-left:1px solid var(--border);padding:20px;overflow-y:auto}.chat-sidebar h3{font-size:.9rem;font-weight:600;margin-bottom:16px;color:var(--text-secondary)}.no-docs{color:var(--text-secondary);font-size:.85rem}.doc-list{list-style:none}.doc-list li{display:flex;align-items:center;gap:10px;padding:10px;border-radius:8px;margin-bottom:6px;background:var(--bg);font-size:.85rem}.doc-icon{font-size:1.1rem}.doc-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.loading-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;color:var(--text-secondary)}.settings{min-height:100vh}.settings-header{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;background:var(--bg-secondary);border-bottom:1px solid var(--border)}.settings-header h1{font-size:1.25rem;font-weight:600}.settings-btn{background:transparent;color:var(--text-secondary);border:1px solid var(--border);padding:8px 16px;border-radius:6px;cursor:pointer;font-size:.9rem;transition:all .2s;margin-right:8px}.settings-btn:hover{background:var(--bg-tertiary);color:var(--text)}.settings-main{max-width:800px;margin:0 auto;padding:32px 24px}.settings-section{background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;padding:24px;margin-bottom:24px}.settings-section h2{font-size:1.1rem;font-weight:600;margin-bottom:12px}.section-description{color:var(--text-secondary);font-size:.9rem;margin-bottom:16px}.prompt-editor textarea{width:100%;min-height:200px;padding:16px;background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);font-family:Inter,sans-serif;font-size:.9rem;line-height:1.6;resize:vertical;outline:none}.prompt-editor textarea:focus{border-color:var(--primary)}.message-alert{padding:12px 16px;border-radius:8px;margin:16px 0;font-size:.9rem}.message-alert.success{background:#10b9811a;border:1px solid var(--success);color:var(--success)}.message-alert.error{background:#ef44441a;border:1px solid var(--error);color:var(--error)}.settings-actions{display:flex;gap:12px;margin-top:16px}.usage-card{background:var(--bg);border-radius:8px;padding:20px}.usage-stat{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--border)}.usage-stat:last-of-type{border-bottom:none}.usage-label{color:var(--text-secondary)}.usage-value{font-weight:600;color:var(--primary)}.usage-note{margin-top:16px;font-size:.8rem;color:var(--text-secondary)}.usage-note a{color:var(--primary)}.usage-loading{color:var(--text-secondary);text-align:center;padding:20px}.tips-list{list-style:none;padding:0}.tips-list li{padding:10px 0 10px 24px;position:relative;color:var(--text-secondary);font-size:.9rem;border-bottom:1px solid var(--border)}.tips-list li:last-child{border-bottom:none}.tips-list li:before{content:"•";position:absolute;left:8px;color:var(--primary)}@media (max-width: 768px){.chat-sidebar{display:none}.message{max-width:90%}.dashboard-main,.settings-main{padding:20px 16px}.header-right{flex-wrap:wrap;gap:8px}}