@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";:root{--primary: #6366f1;--primary-light: #818cf8;--primary-dark: #4f46e5;--primary-50: rgba(99, 102, 241, .05);--primary-100: rgba(99, 102, 241, .1);--primary-200: rgba(99, 102, 241, .2);--accent: #06b6d4;--accent-light: #22d3ee;--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--info: #3b82f6;--bg: #f8fafc;--bg-card: #ffffff;--bg-sidebar: #0f172a;--bg-sidebar-hover: #1e293b;--bg-sidebar-active: rgba(99, 102, 241, .15);--text: #0f172a;--text-secondary: #64748b;--text-sidebar: #94a3b8;--text-sidebar-active: #ffffff;--border: #e2e8f0;--border-light: #f1f5f9;--sidebar-width: 260px;--sidebar-collapsed: 72px;--header-height: 64px;--radius: 12px;--radius-sm: 8px;--radius-xs: 6px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .07), 0 2px 4px -2px rgba(0, 0, 0, .05);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .08), 0 4px 6px -4px rgba(0, 0, 0, .05);--transition: .2s cubic-bezier(.4, 0, .2, 1)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;color:var(--text);background:var(--bg);line-height:1.6}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}input,textarea,select{font-family:inherit}.app-layout{display:flex;min-height:100vh}.app-content{flex:1;margin-left:var(--sidebar-width);transition:margin-left var(--transition)}.app-content.collapsed{margin-left:var(--sidebar-collapsed)}.page-container{padding:24px 32px;max-width:1400px}.sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-width);background:var(--bg-sidebar);display:flex;flex-direction:column;z-index:100;transition:width var(--transition);overflow:hidden}.sidebar.collapsed{width:var(--sidebar-collapsed)}.sidebar-brand{display:flex;align-items:center;gap:12px;padding:20px;border-bottom:1px solid rgba(255,255,255,.06)}.sidebar-brand .brand-icon{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:16px;flex-shrink:0}.sidebar-brand .brand-name{font-size:18px;font-weight:700;color:#fff;white-space:nowrap}.sidebar-brand .brand-version{font-size:11px;color:var(--text-sidebar);font-weight:500}.sidebar-nav{flex:1;padding:12px 10px;overflow-y:auto}.sidebar-section{margin-bottom:8px}.sidebar-section-title{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:#94a3b880;padding:8px 12px 4px;white-space:nowrap}.sidebar-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-sm);color:var(--text-sidebar);font-size:14px;font-weight:500;cursor:pointer;transition:all var(--transition);white-space:nowrap;border:none;background:none;width:100%;text-align:left}.sidebar-item:hover{background:var(--bg-sidebar-hover);color:#e2e8f0}.sidebar-item.active{background:var(--bg-sidebar-active);color:var(--primary-light)}.sidebar-item .icon{width:20px;height:20px;flex-shrink:0}.sidebar-divider{height:1px;background:#ffffff0f;margin:8px 12px}.sidebar-footer{padding:12px;border-top:1px solid rgba(255,255,255,.06)}.sidebar-user{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:var(--radius-sm);cursor:pointer;transition:background var(--transition)}.sidebar-user:hover{background:var(--bg-sidebar-hover)}.sidebar-user .avatar{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:14px;flex-shrink:0}.sidebar-user .user-info{white-space:nowrap;overflow:hidden}.sidebar-user .user-name{font-size:13px;font-weight:600;color:#e2e8f0}.sidebar-user .user-role{font-size:11px;color:var(--text-sidebar)}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}.page-title{font-size:26px;font-weight:700;color:var(--text)}.page-subtitle{font-size:14px;color:var(--text-secondary);margin-top:2px}.card{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:box-shadow var(--transition)}.card:hover{box-shadow:var(--shadow-md)}.card-header{padding:16px 20px;border-bottom:1px solid var(--border-light);display:flex;align-items:center;justify-content:space-between}.card-title{font-size:15px;font-weight:600;color:var(--text)}.card-body{padding:20px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);padding:20px;display:flex;align-items:flex-start;gap:16px;box-shadow:var(--shadow-sm);transition:all var(--transition)}.stat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-1px)}.stat-icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.stat-icon.purple{background:var(--primary-100);color:var(--primary)}.stat-icon.cyan{background:#06b6d41a;color:var(--accent)}.stat-icon.green{background:#22c55e1a;color:var(--success)}.stat-icon.amber{background:#f59e0b1a;color:var(--warning)}.stat-icon.red{background:#ef44441a;color:var(--danger)}.stat-icon.blue{background:#3b82f61a;color:var(--info)}.stat-value{font-size:28px;font-weight:700;color:var(--text);line-height:1}.stat-label{font-size:13px;color:var(--text-secondary);margin-top:4px}.stat-trend{font-size:12px;font-weight:600;margin-top:6px}.stat-trend.up{color:var(--success)}.stat-trend.down{color:var(--danger)}.dashboard-grid{display:grid;grid-template-columns:2fr 1fr;gap:20px}@media(max-width:1024px){.dashboard-grid{grid-template-columns:1fr}}.chat-container{display:flex;flex-direction:column;height:calc(100vh - var(--header-height) - 80px)}.chat-messages{flex:1;overflow-y:auto;padding:20px}.chat-message{display:flex;gap:12px;margin-bottom:20px;max-width:85%}.chat-message.user{margin-left:auto;flex-direction:row-reverse}.chat-message .message-avatar{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;flex-shrink:0}.chat-message.assistant .message-avatar{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff}.chat-message.user .message-avatar{background:var(--primary-100);color:var(--primary)}.chat-message .message-content{padding:12px 16px;border-radius:16px;font-size:14px;line-height:1.6}.chat-message.assistant .message-content{background:var(--bg);border:1px solid var(--border);border-bottom-left-radius:4px}.chat-message.user .message-content{background:var(--primary);color:#fff;border-bottom-right-radius:4px}.chat-input-area{padding:16px 20px;border-top:1px solid var(--border);display:flex;gap:12px}.chat-input{flex:1;padding:12px 16px;border:1px solid var(--border);border-radius:12px;font-size:14px;outline:none;transition:border-color var(--transition);background:var(--bg-card)}.chat-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-100)}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;border:none;transition:all var(--transition)}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark);box-shadow:var(--shadow-md)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover{background:var(--primary-50);color:var(--primary)}.status-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:20px;font-size:12px;font-weight:600}.status-badge.online{background:#22c55e1a;color:var(--success)}.status-badge.offline{background:#ef44441a;color:var(--danger)}.status-badge .status-dot{width:7px;height:7px;border-radius:50%;background:currentColor}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f172a,#1e293b,#0f172a)}.login-card{width:400px;background:#fff;border-radius:16px;padding:40px;box-shadow:0 25px 50px -12px #00000040}.login-brand{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:32px}.login-brand .brand-icon{width:48px;height:48px;border-radius:14px;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:20px}.login-brand h1{font-size:28px;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.form-group{margin-bottom:18px}.form-label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:6px}.form-input{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;outline:none;transition:all var(--transition)}.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-100)}.login-btn{width:100%;padding:12px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;border:none;border-radius:var(--radius-sm);font-size:15px;font-weight:600;cursor:pointer;transition:all var(--transition)}.login-btn:hover{box-shadow:0 4px 12px #6366f166;transform:translateY(-1px)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.animate-in{animation:fadeIn .3s ease-out}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spin{animation:spin 1s linear infinite}.sidebar-item.locked{position:relative}@media(max-width:768px){.sidebar{transform:translate(-100%)}.sidebar.open{transform:translate(0)}.app-content{margin-left:0}.page-container{padding:16px}}.transfer-tabs{display:flex;gap:4px;background:var(--border-light);padding:4px;border-radius:var(--radius);margin-bottom:1.5rem;width:fit-content}.transfer-tab{display:flex;align-items:center;gap:8px;padding:10px 20px;border:none;border-radius:var(--radius-sm);background:transparent;font-size:.9rem;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:all var(--transition)}.transfer-tab:hover{color:var(--text);background:#fff9}.transfer-tab.active{background:var(--bg-card);color:var(--primary);font-weight:600;box-shadow:var(--shadow-sm)}.drop-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:3rem 2rem;text-align:center;cursor:pointer;transition:all .3s ease;background:var(--bg-card)}.drop-zone:hover{border-color:var(--primary-light);background:var(--primary-50)}.drop-zone.dragover{border-color:var(--primary);background:var(--primary-100);box-shadow:0 0 0 4px var(--primary-50);animation:dropzone-pulse 1.5s ease-in-out infinite}@keyframes dropzone-pulse{0%,to{box-shadow:0 0 0 4px var(--primary-50)}50%{box-shadow:0 0 0 8px #6366f10d}}.file-queue{margin-top:1rem;display:flex;flex-direction:column;gap:8px}.file-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 16px;transition:border-color var(--transition)}.file-item:hover{border-color:var(--primary-light)}.progress-bar{width:100%;height:6px;background:var(--border-light);border-radius:999px;overflow:hidden}.progress-fill{height:100%;border-radius:999px;background:var(--primary);transition:width .4s ease}.upload-speed{font-size:.75rem;font-weight:600;color:var(--primary);background:var(--primary-50);padding:1px 8px;border-radius:999px}.btn-icon-sm{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:var(--radius-xs);border:none;background:transparent;color:var(--text-secondary);cursor:pointer;transition:all var(--transition)}.btn-icon-sm:hover{background:var(--border-light);color:var(--text)}.share-modal-overlay{position:fixed;inset:0;background:#00000073;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease}.share-modal{background:var(--bg-card);border-radius:var(--radius);padding:1.75rem;width:480px;max-width:95vw;max-height:85vh;overflow:auto;box-shadow:var(--shadow-lg);animation:slideUp .25s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(16px);opacity:0}to{transform:translateY(0);opacity:1}}.qr-modal{background:var(--bg-card);border-radius:var(--radius);padding:1.5rem;width:320px;max-width:90vw;box-shadow:var(--shadow-lg);animation:slideUp .25s ease}.share-link-display{display:flex;gap:8px;align-items:center}.share-link-display .input{flex:1}.status-badge{display:inline-flex;align-items:center;gap:4px;font-size:.75rem;font-weight:600;padding:3px 10px;border-radius:999px}.status-uploading{background:#6366f11a;color:var(--primary)}.status-completed{background:#22c55e1a;color:var(--success)}.status-failed{background:#ef44441a;color:var(--danger)}.status-cancelled{background:#94a3b81a;color:var(--text-secondary)}.transfer-download-page{min-height:100vh;background:#f8fafc;display:flex;flex-direction:column;align-items:center;padding:2rem 1rem;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;color:#0f172a}.dl-brand{display:flex;align-items:center;gap:10px;margin-bottom:2rem}.dl-brand-icon{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,#6366f1,#06b6d4);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:18px}.dl-brand-name{font-size:1.5rem;font-weight:800;background:linear-gradient(135deg,#6366f1,#06b6d4);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.download-card{background:#fff;border-radius:16px;padding:2rem;width:100%;max-width:520px;box-shadow:0 4px 6px -1px #00000012,0 2px 4px -2px #0000000d;border:1px solid #e2e8f0}.file-list-download{display:flex;flex-direction:column;gap:6px}.dl-file-item{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-radius:10px;background:#f8fafc;border:1px solid #e2e8f0;transition:all .2s ease}.dl-file-item:hover{border-color:#6366f1;background:#6366f108}.dl-btn-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;border:1px solid #e2e8f0;background:#fff;color:#6366f1;cursor:pointer;transition:all .2s ease;flex-shrink:0}.dl-btn-icon:hover{background:#6366f1;color:#fff;border-color:#6366f1}.dl-input{width:100%;padding:12px 16px;border-radius:10px;border:1px solid #e2e8f0;font-size:.95rem;font-family:inherit;background:#fff;color:#0f172a;transition:border-color .2s ease;outline:none}.dl-input:focus{border-color:#6366f1;box-shadow:0 0 0 3px #6366f11a}.dl-btn-primary{display:flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:10px;border:none;background:#6366f1;color:#fff;font-size:.95rem;font-weight:600;font-family:inherit;cursor:pointer;transition:all .2s ease}.dl-btn-primary:hover{background:#4f46e5;transform:translateY(-1px);box-shadow:0 4px 12px #6366f140}.dl-btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.password-form{display:flex;flex-direction:column;gap:12px}.dl-footer{margin-top:2rem;font-size:.8rem;color:#94a3b8}.dl-footer strong{font-weight:700;background:linear-gradient(135deg,#6366f1,#06b6d4);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}@media(max-width:576px){.download-card{padding:1.25rem}.share-link-display{flex-direction:column}.share-link-display .btn{width:100%;justify-content:center}.transfer-tabs{width:100%}.transfer-tab{flex:1;justify-content:center;padding:10px 12px;font-size:.8rem}}