:root{--font-family: "Inter", system-ui, -apple-system, sans-serif;--transition-speed: .2s}:root[data-theme=dark],:root:not([data-theme]){--bg-app: #0f172a;--bg-panel: rgba(30, 41, 59, .7);--bg-panel-hover: rgba(51, 65, 85, .8);--border-color: rgba(148, 163, 184, .1);--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent-primary: #3b82f6;--accent-glow: rgba(59, 130, 246, .5);--glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, .37);--glass-border: 1px solid rgba(255, 255, 255, .05)}:root[data-theme=light]{--bg-app: #f1f5f9;--bg-panel: rgba(255, 255, 255, .9);--bg-panel-hover: rgba(241, 245, 249, .95);--border-color: rgba(148, 163, 184, .2);--text-primary: #1e293b;--text-secondary: #64748b;--accent-primary: #3b82f6;--accent-glow: rgba(59, 130, 246, .3);--glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, .1);--glass-border: 1px solid rgba(0, 0, 0, .08)}body{margin:0;font-family:var(--font-family);background-color:var(--bg-app);color:var(--text-primary);height:100vh;overflow:hidden}#root{height:100%;display:flex}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.glass-panel{background:var(--bg-panel);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:var(--glass-border);box-shadow:var(--glass-shadow)}.flex-center{display:flex;align-items:center;justify-content:center}.sidebar{width:260px;height:calc(100vh - 32px);display:flex;flex-direction:column;padding:0;margin:16px 0 16px 16px;border-radius:16px 0 0 16px;align-self:flex-start;overflow:hidden}.brand{display:flex;align-items:center;gap:12px;padding:20px 20px 16px;flex-shrink:0}.logo-container{padding:8px;background:var(--accent-primary);border-radius:8px;display:flex;box-shadow:0 4px 12px #3b82f64d}.logo-icon{color:#fff;width:24px;height:24px}.brand-text{font-size:20px;font-weight:700;background:linear-gradient(135deg,#60a5fa,#a78bfa);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin:0}.nav-menu{flex:1;display:flex;flex-direction:column;gap:8px;padding:0 16px;overflow-y:auto}.nav-item{width:100%;display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:8px;border:1px solid transparent;background:transparent;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-speed);font-size:15px;font-weight:500;text-align:left}.nav-item:hover{background:var(--bg-panel-hover);color:var(--text-primary)}.nav-item.active{background:#3b82f61a;color:#60a5fa;border-color:#3b82f633;box-shadow:0 4px 12px #0000001a}.nav-icon{width:20px;height:20px;transition:transform var(--transition-speed)}.nav-item:hover .nav-icon{transform:scale(1.1);color:var(--text-primary)}.nav-item.active .nav-icon{color:#60a5fa}.footer{margin-top:auto;border-top:1px solid var(--border-color);padding:20px;flex-shrink:0;display:flex;flex-direction:column;gap:12px}.user-info{display:flex;align-items:center;gap:12px;padding:12px;border-radius:8px;background:var(--bg-panel);border:1px solid var(--border-color);margin-bottom:4px}.user-avatar{flex-shrink:0;width:40px;height:40px;border-radius:50%;overflow:hidden;background:var(--bg-panel-hover);display:flex;align-items:center;justify-content:center}.user-photo{width:100%;height:100%;object-fit:cover}.user-photo-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#60a5fa,#a78bfa)}.user-icon{width:24px;height:24px;color:#fff}.user-details{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.user-name{font-size:14px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-email{font-size:12px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.theme-toggle{margin-bottom:0}.logout-button{color:#ef4444!important}.logout-button:hover{background:#ef44441a!important;color:#ef4444!important}.logout-button .nav-icon{color:#ef4444}.file-browser{flex:1;margin:16px 16px 16px 0;display:flex;flex-direction:column;overflow:hidden;border-radius:0 16px 16px 0;position:relative;height:calc(100vh - 32px);align-self:flex-start}.browser-header{padding:20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border-color)}.breadcrumbs{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-secondary)}.crumb{cursor:pointer;transition:color .2s}.crumb:hover{color:var(--text-primary)}.crumb.active{color:var(--text-primary);font-weight:600}.separator{opacity:.5}.content-area{flex:1;overflow-y:auto;padding:20px}.grid-view{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:20px}.file-card{display:flex;flex-direction:column;padding:16px;border-radius:12px;transition:all .2s ease;cursor:pointer;background:var(--bg-panel);border:1px solid var(--border-color);position:relative;overflow:hidden}.file-card:hover{background:var(--bg-panel-hover);transform:translateY(-2px);box-shadow:var(--glass-shadow);border-color:var(--border-color)}.card-icon{margin-bottom:12px;padding:12px;border-radius:12px;width:fit-content}.type-folder{background:#60a5fa1a;color:#60a5fa}.type-file{background:#a78bfa1a;color:#a78bfa}.is-virtual:before{content:"";position:absolute;top:0;right:0;width:0;height:0;border-style:solid;border-width:0 40px 40px 0;border-color:transparent rgba(255,255,255,.1) transparent transparent}.is-virtual:after{content:"Merged";position:absolute;top:8px;right:2px;font-size:8px;transform:rotate(45deg);color:#ffffff80;font-weight:900;letter-spacing:1px}.card-name{font-size:14px;font-weight:500;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:4px}.card-meta{font-size:12px;color:var(--text-secondary);display:flex;justify-content:space-between}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-secondary);gap:16px}.search-container{position:relative;display:flex;align-items:center}.search-icon{width:16px;height:16px;position:absolute;left:12px;color:var(--text-secondary)}.search-input{background:var(--bg-panel);border:1px solid var(--border-color);border-radius:8px;padding:8px 16px 8px 36px;font-size:14px;color:var(--text-primary);width:250px;transition:all .2s;outline:none}.search-input::placeholder{color:var(--text-secondary)}.search-input:focus{border-color:var(--accent-primary);background:var(--bg-panel-hover)}.header-actions{display:flex;align-items:center;gap:16px}.view-toggle{display:flex;background:var(--bg-panel);border-radius:8px;padding:4px;border:1px solid var(--border-color);gap:4px}.toggle-btn{padding:6px;border-radius:6px;border:none;background:transparent;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.toggle-btn:hover{color:var(--text-primary)}.toggle-btn.active{background:var(--bg-panel-hover);color:var(--text-primary)}.toggle-icon{width:16px;height:16px}.list-view{display:flex;flex-direction:column;gap:8px}.list-view .file-card{flex-direction:row;align-items:center;padding:8px 16px;gap:16px}.list-view .card-icon{margin-bottom:0;padding:8px}.list-view .card-name{flex:1}.list-view .card-meta{width:200px}.login-container{height:100vh;width:100%;display:flex;align-items:center;justify-content:center;background-color:var(--bg-app);color:var(--text-primary)}.login-panel{padding:32px;border-radius:16px;display:flex;flex-direction:column;align-items:center;gap:24px;max-width:448px;width:100%}.login-title{font-size:30px;font-weight:700;background:linear-gradient(to right,#60a5fa,#c084fc);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin:0}.login-description{color:var(--text-secondary);text-align:center;margin:0}.error-message{background-color:#ef44441a;border:1px solid rgba(239,68,68,.2);color:#f87171;padding:8px 16px;border-radius:8px;font-size:14px;width:100%;text-align:center;box-sizing:border-box}.login-button{width:100%;display:flex;align-items:center;justify-content:center;gap:12px;background-color:var(--accent-primary);color:#fff;padding:12px 24px;border-radius:12px;border:none;font-weight:500;cursor:pointer;transition:all .2s}.login-button:hover{background-color:#2563eb}.login-button:disabled{opacity:.5;cursor:not-allowed}.spinner{width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin 1s linear infinite}.login-icon{width:20px;height:20px}.login-note{font-size:12px;color:var(--text-secondary);text-align:center;margin-top:16px}@keyframes spin{to{transform:rotate(360deg)}}.app-container{display:flex;height:100vh;width:100%;background-color:var(--bg-app);color:var(--text-primary);overflow:hidden}