*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:#f5f5f5;color:#1a1a1a}.center{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;gap:1rem}.btn{padding:.5rem 1rem;border:1px solid #d0d0d0;border-radius:6px;background:#fff;cursor:pointer;font-size:.875rem;transition:all .15s}.btn:hover{background:#f0f0f0}.btn.primary{background:#2563eb;color:#fff;border-color:#2563eb}.btn.primary:hover{background:#1d4ed8}.btn.primary:disabled{opacity:.6;cursor:not-allowed}.header{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1.5rem;background:#fff;border-bottom:1px solid #e0e0e0}.header h1{font-size:1.25rem;font-weight:600}.header-right{display:flex;align-items:center;gap:1rem;font-size:.875rem;color:#666}.file-browser{max-width:960px;margin:1.5rem auto;background:#fff;border-radius:8px;border:1px solid #e0e0e0;min-height:400px;transition:background .2s}.file-browser.drag-over{background:#eff6ff;border-color:#2563eb}.toolbar{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1rem;border-bottom:1px solid #e0e0e0;flex-wrap:wrap;gap:.5rem}.toolbar-actions{display:flex;gap:.5rem}.breadcrumbs{display:flex;align-items:center;font-size:.875rem}.crumb{cursor:pointer;padding:.25rem .5rem;border-radius:4px}.crumb:hover{background:#f0f0f0}.crumb-sep{color:#999;margin:0 .125rem}.new-folder-form{display:flex;gap:.5rem;padding:.75rem 1rem;border-bottom:1px solid #e0e0e0;background:#fafafa}.new-folder-form input{flex:1;padding:.5rem;border:1px solid #d0d0d0;border-radius:6px;font-size:.875rem}.error-bar{padding:.75rem 1rem;background:#fef2f2;color:#dc2626;border-bottom:1px solid #fecaca;font-size:.875rem}.file-table{width:100%;border-collapse:collapse}.file-table th{text-align:left;padding:.5rem 1rem;font-size:.75rem;text-transform:uppercase;color:#888;border-bottom:1px solid #e0e0e0;font-weight:500}.file-row{cursor:pointer;transition:background .1s}.file-row:hover{background:#f5f7ff}.file-row td{padding:.625rem 1rem;border-bottom:1px solid #f0f0f0;font-size:.875rem}.name-cell{display:flex;align-items:center;gap:.5rem}.icon{font-size:1.125rem}.size-cell,.date-cell{color:#666;white-space:nowrap}.empty{display:flex;flex-direction:column;align-items:center;padding:4rem 1rem;color:#888}.hint{font-size:.875rem;margin-top:.5rem}.context-menu{position:fixed;background:#fff;border:1px solid #e0e0e0;border-radius:6px;box-shadow:0 4px 12px #0000001a;z-index:100;min-width:140px;overflow:hidden}.context-item{padding:.625rem 1rem;cursor:pointer;font-size:.875rem}.context-item:hover{background:#f5f5f5}.context-item.danger{color:#dc2626}.context-item.danger:hover{background:#fef2f2}