:root{--bg-primary:#0a0e1a;--bg-secondary:#111827;--bg-tertiary:#1e293b;--bg-hover:#243044;--bg-active:#2d3c54;--bg-glass:#111827cc;--border:#1e293b;--border-light:#334155;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--text-muted:#64748b;--accent:#6366f1;--accent-hover:#818cf8;--accent-glow:#6366f140;--success:#22c55e;--warning:#f59e0b;--danger:#ef4444;--danger-hover:#dc2626;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--shadow-sm:0 1px 3px #0000004d;--shadow-md:0 4px 12px #0006;--shadow-lg:0 8px 32px #00000080;--shadow-glow:0 0 24px var(--accent-glow);--transition:.18s ease}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100%;overflow:hidden}body{background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.app-layout{width:100vw;height:100vh;display:flex}.sidebar{background:var(--bg-secondary);border-right:1px solid var(--border);flex-direction:column;width:260px;min-width:260px;padding:0;display:flex;overflow:hidden}.sidebar-header{border-bottom:1px solid var(--border);align-items:center;gap:10px;padding:20px 20px 16px;display:flex}.sidebar-header .logo{background:linear-gradient(135deg, var(--accent), #a78bfa);border-radius:var(--radius-sm);color:#fff;justify-content:center;align-items:center;width:32px;height:32px;font-size:14px;font-weight:700;display:flex}.sidebar-header h1{letter-spacing:-.3px;font-size:16px;font-weight:600}.sidebar-header h1 span{color:var(--text-muted);font-weight:400}.sidebar-nav{flex:1;padding:12px 10px;overflow-y:auto}.nav-section-label{text-transform:uppercase;letter-spacing:1px;color:var(--text-muted);padding:12px 10px 6px;font-size:10px;font-weight:600}.nav-item{border-radius:var(--radius-sm);cursor:pointer;color:var(--text-secondary);transition:all var(--transition);text-align:left;background:0 0;border:none;align-items:center;gap:10px;width:100%;padding:9px 12px;font-size:13px;font-weight:500;display:flex}.nav-item:hover{background:var(--bg-hover);color:var(--text-primary)}.nav-item.active{background:var(--accent-glow);color:var(--accent-hover)}.nav-item svg{flex-shrink:0;width:18px;height:18px}.sidebar-storage{border-top:1px solid var(--border);padding:16px 20px}.storage-bar-bg{background:var(--bg-tertiary);border-radius:2px;height:4px;margin-bottom:8px;overflow:hidden}.storage-bar-fill{background:linear-gradient(90deg, var(--accent), #a78bfa);border-radius:2px;height:100%;transition:width .4s}.storage-text{color:var(--text-muted);font-size:11px}.storage-text strong{color:var(--text-secondary)}.main-content{flex-direction:column;flex:1;display:flex;overflow:hidden}.toolbar{border-bottom:1px solid var(--border);background:var(--bg-secondary);justify-content:space-between;align-items:center;gap:16px;padding:14px 24px;display:flex}.toolbar-left{align-items:center;gap:8px;min-width:0;display:flex}.breadcrumb{align-items:center;gap:4px;min-width:0;font-size:13px;display:flex}.breadcrumb-item{color:var(--text-muted);cursor:pointer;border-radius:var(--radius-sm);transition:all var(--transition);white-space:nowrap;background:0 0;border:none;padding:4px 8px;font-family:inherit;font-size:13px}.breadcrumb-item:hover{color:var(--text-primary);background:var(--bg-hover)}.breadcrumb-item.active{color:var(--text-primary);cursor:default;font-weight:600}.breadcrumb-item.active:hover{background:0 0}.breadcrumb-sep{color:var(--text-muted);font-size:11px}.toolbar-right{align-items:center;gap:8px;display:flex}.toolbar-btn{border-radius:var(--radius-sm);border:1px solid var(--border-light);background:var(--bg-tertiary);color:var(--text-secondary);cursor:pointer;transition:all var(--transition);align-items:center;gap:6px;padding:7px 14px;font-family:inherit;font-size:12px;font-weight:500;display:flex}.toolbar-btn:hover{background:var(--bg-hover);color:var(--text-primary);border-color:var(--text-muted)}.toolbar-btn svg{width:15px;height:15px}.toolbar-btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.toolbar-btn.primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);box-shadow:var(--shadow-glow)}.toolbar-btn.danger{color:var(--danger);border-color:var(--danger)}.toolbar-btn.danger:hover{background:var(--danger);color:#fff}.search-box{background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius-sm);min-width:200px;transition:border-color var(--transition);align-items:center;gap:8px;padding:7px 14px;display:flex}.search-box:focus-within{border-color:var(--accent)}.search-box svg{width:15px;height:15px;color:var(--text-muted);flex-shrink:0}.search-box input{color:var(--text-primary);background:0 0;border:none;outline:none;width:100%;font-family:inherit;font-size:12px}.search-box input::placeholder{color:var(--text-muted)}.file-area{flex:1;padding:20px 24px;overflow-y:auto}.file-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;display:grid}.file-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition);-webkit-user-select:none;user-select:none;flex-direction:column;align-items:center;padding:20px 12px 14px;display:flex;position:relative}.file-card:hover{background:var(--bg-tertiary);border-color:var(--border-light);box-shadow:var(--shadow-md);transform:translateY(-1px)}.file-card.selected{border-color:var(--accent);background:var(--accent-glow);box-shadow:var(--shadow-glow)}.file-card .file-icon{border-radius:var(--radius-md);justify-content:center;align-items:center;width:48px;height:48px;margin-bottom:10px;display:flex}.file-card .file-icon.folder{color:#fbbf24}.file-card .file-icon.image{color:#34d399}.file-card .file-icon.document{color:#60a5fa}.file-card .file-icon.video{color:#f472b6}.file-card .file-icon.audio{color:#a78bfa}.file-card .file-icon.archive{color:#fb923c}.file-card .file-icon.default{color:var(--text-muted)}.file-card .file-icon svg{width:40px;height:40px}.file-card .file-name{text-align:center;word-break:break-word;width:100%;max-height:2.6em;font-size:12px;font-weight:500;line-height:1.3;overflow:hidden}.file-card .file-meta{color:var(--text-muted);margin-top:4px;font-size:10px}.file-card .file-checkbox{border:2px solid var(--border-light);background:var(--bg-tertiary);opacity:0;width:18px;height:18px;transition:opacity var(--transition);border-radius:4px;justify-content:center;align-items:center;display:flex;position:absolute;top:8px;left:8px}.file-card:hover .file-checkbox,.file-card.selected .file-checkbox{opacity:1}.file-card.selected .file-checkbox{background:var(--accent);border-color:var(--accent)}.empty-state{height:100%;color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:60px 20px;display:flex}.empty-state svg{opacity:.3;width:64px;height:64px}.empty-state h3{color:var(--text-secondary);font-size:16px;font-weight:600}.empty-state p{text-align:center;max-width:300px;font-size:13px;line-height:1.5}.context-menu{background:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius-md);min-width:180px;box-shadow:var(--shadow-lg);z-index:1000;padding:6px;animation:.12s fadeIn;position:fixed}@keyframes fadeIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.context-menu-item{border-radius:var(--radius-sm);cursor:pointer;color:var(--text-secondary);transition:all var(--transition);text-align:left;background:0 0;border:none;align-items:center;gap:10px;width:100%;padding:8px 12px;font-family:inherit;font-size:12px;display:flex}.context-menu-item:hover{background:var(--bg-hover);color:var(--text-primary)}.context-menu-item.danger:hover{color:var(--danger);background:#ef444426}.context-menu-item svg{flex-shrink:0;width:15px;height:15px}.context-menu-divider{background:var(--border);height:1px;margin:4px 0}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:2000;background:#0009;justify-content:center;align-items:center;animation:.15s fadeIn;display:flex;position:fixed;inset:0}.modal{background:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius-lg);min-width:380px;max-width:440px;box-shadow:var(--shadow-lg);padding:24px}.modal h2{margin-bottom:16px;font-size:16px;font-weight:600}.modal input[type=text],.modal input[type=email],.modal input[type=password]{background:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);transition:border-color var(--transition);outline:none;padding:10px 14px;font-family:inherit;font-size:13px}.modal input:focus{border-color:var(--accent)}.modal-actions{justify-content:flex-end;gap:8px;margin-top:20px;display:flex}.drop-zone-active{border:2px dashed var(--accent);z-index:500;pointer-events:none;background:#6366f114;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.drop-zone-active .drop-label{background:var(--bg-secondary);border-radius:var(--radius-xl);border:1px solid var(--accent);box-shadow:var(--shadow-glow);color:var(--accent-hover);align-items:center;gap:12px;padding:24px 48px;font-size:16px;font-weight:600;display:flex}.drop-zone-active .drop-label svg{width:28px;height:28px}.upload-toast{background:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius-md);min-width:300px;box-shadow:var(--shadow-lg);z-index:3000;padding:16px 20px;animation:.2s slideUp;position:fixed;bottom:24px;right:24px}@keyframes slideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.upload-toast-header{justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.upload-toast-header span{font-size:13px;font-weight:600}.upload-progress-bar{background:var(--bg-tertiary);border-radius:2px;height:3px;overflow:hidden}.upload-progress-fill{background:linear-gradient(90deg, var(--accent), var(--accent-hover));border-radius:2px;height:100%;transition:width .3s}.login-page{background:var(--bg-primary);justify-content:center;align-items:center;height:100vh;display:flex}.login-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);width:400px;box-shadow:var(--shadow-lg);padding:40px}.login-card .login-logo{align-items:center;gap:12px;margin-bottom:32px;display:flex}.login-card .login-logo .logo-box{background:linear-gradient(135deg, var(--accent), #a78bfa);border-radius:var(--radius-sm);color:#fff;justify-content:center;align-items:center;width:40px;height:40px;font-size:16px;font-weight:700;display:flex}.login-card .login-logo h1{font-size:20px;font-weight:600}.login-card .login-logo h1 span{color:var(--text-muted);font-weight:400}.login-field{margin-bottom:16px}.login-field label{color:var(--text-secondary);margin-bottom:6px;font-size:12px;font-weight:500;display:block}.login-field input{background:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);transition:border-color var(--transition);outline:none;padding:10px 14px;font-family:inherit;font-size:13px}.login-field input:focus{border-color:var(--accent)}.login-btn{background:var(--accent);color:#fff;border-radius:var(--radius-sm);cursor:pointer;width:100%;transition:all var(--transition);border:none;margin-top:8px;padding:11px;font-family:inherit;font-size:13px;font-weight:600}.login-btn:hover{background:var(--accent-hover);box-shadow:var(--shadow-glow)}.login-btn:disabled{opacity:.5;cursor:not-allowed}.login-error{color:var(--danger);border-radius:var(--radius-sm);background:#ef44441a;border:1px solid #ef44444d;margin-bottom:16px;padding:10px 14px;font-size:12px}.file-card.drag-over{box-shadow:var(--shadow-glow);transform:scale(1.03);border-color:var(--accent)!important;background:var(--accent-glow)!important}.file-card[draggable=true]{cursor:grab}.file-card[draggable=true]:active{cursor:grabbing;opacity:.6}.mobile-bottom-nav{background:var(--bg-secondary);border-top:1px solid var(--border);padding:6px 0 env(safe-area-inset-bottom,8px);z-index:900;display:none;position:fixed;bottom:0;left:0;right:0}.mobile-nav-item{color:var(--text-muted);cursor:pointer;transition:color var(--transition);background:0 0;border:none;flex-direction:column;flex:1;align-items:center;gap:2px;padding:6px 0;font-family:inherit;font-size:10px;font-weight:500;display:flex}.mobile-nav-item.active{color:var(--accent-hover)}.mobile-nav-item:hover{color:var(--text-primary)}@media (width<=768px){.sidebar{display:none}.mobile-bottom-nav{display:flex}.file-area{padding-bottom:80px}.file-grid{grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:8px}.file-card{padding:14px 8px 10px}.file-card .file-icon svg{width:32px;height:32px}.toolbar{flex-wrap:wrap;gap:8px;padding:10px 14px}.toolbar-right{justify-content:space-between;width:100%}.search-box{min-width:unset;flex:1}.toolbar-btn span,.toolbar-btn:not(.primary):not(.danger){font-size:0}.toolbar-btn svg{width:18px;height:18px}.modal{min-width:unset;width:calc(100vw - 32px);max-width:400px}.context-menu{width:auto;min-width:unset;right:16px;left:16px!important}}@media (width<=480px){.file-grid{grid-template-columns:repeat(auto-fill,minmax(90px,1fr))}.file-card .file-name{font-size:11px}.breadcrumb-item{padding:3px 6px;font-size:12px}}