:root{--primary: #1e40af;--primary-dark: #1e3a8a;--primary-light: #3b82f6;--secondary: #10b981;--accent: #f59e0b;--danger: #ef4444;--background: #f8fafc;--surface: #ffffff;--text-primary: #1e293b;--text-secondary: #64748b;--border: #e2e8f0;--shadow: rgba(15, 23, 42, .08);--gradient-primary: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);--gradient-success: linear-gradient(135deg, #10b981 0%, #34d399 100%)}.app{min-height:100vh;background:var(--background)}.app-header{background:var(--surface);border-bottom:1px solid var(--border);padding:2rem 0;box-shadow:0 1px 3px var(--shadow)}.header-content{max-width:1400px;margin:0 auto;padding:0 2rem}.header-title{display:flex;align-items:center;gap:1rem;margin-bottom:.5rem}.header-icon{font-size:2rem;color:var(--primary)}.header-title h1{font-size:2rem;font-weight:700;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:0}.header-subtitle{color:var(--text-secondary);font-size:1rem;margin:0;padding-left:3rem}.app-main{max-width:1400px;margin:0 auto;padding:2rem}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin-bottom:2.5rem}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:1.5rem;display:flex;align-items:center;gap:1.5rem;transition:all .3s ease;box-shadow:0 2px 8px var(--shadow);position:relative;overflow:hidden}.stat-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary)}.stat-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #1e40af26;border-color:var(--primary-light)}.stat-icon-wrapper{width:64px;height:64px;border-radius:14px;display:flex;align-items:center;justify-content:center;flex-shrink:0;background:var(--gradient-primary);color:#fff;box-shadow:0 4px 12px #1e40af40}.stat-icon-wrapper.users{background:var(--gradient-primary)}.stat-icon-wrapper.uploads{background:linear-gradient(135deg,#8b5cf6,#a78bfa)}.stat-icon-wrapper.excel{background:linear-gradient(135deg,#10b981,#34d399)}.stat-icon-wrapper.images{background:linear-gradient(135deg,#f59e0b,#fbbf24)}.stat-icon{font-size:1.75rem}.stat-content{flex:1}.stat-label{font-size:.8125rem;color:var(--text-secondary);font-weight:600;margin:0 0 .5rem;text-transform:uppercase;letter-spacing:.8px}.stat-value{font-size:2.25rem;font-weight:700;color:var(--text-primary);margin:0;line-height:1}.actions-bar{display:flex;gap:1rem;margin-bottom:2.5rem}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;border:none;border-radius:10px;font-size:.9375rem;font-weight:600;cursor:pointer;transition:all .2s ease;background:var(--surface);color:var(--text-primary);box-shadow:0 2px 4px var(--shadow)}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:0 4px 12px #1e40af4d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 16px #1e40af66}.btn-secondary{background:var(--surface);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--background);border-color:var(--primary-light);color:var(--primary)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-danger{background:#fff;color:var(--danger);border:1px solid var(--danger)}.btn-danger:hover{background:var(--danger);color:#fff;transform:translateY(-1px);box-shadow:0 4px 8px #ef44444d}.btn-small{padding:.5rem 1rem;font-size:.875rem}.btn-icon{font-size:1.125rem}.btn-icon.spinning{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.users-section{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:2rem;box-shadow:0 2px 8px var(--shadow)}.section-header{margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:2px solid var(--border)}.section-header h2{display:flex;align-items:center;gap:.75rem;font-size:1.5rem;font-weight:700;color:var(--text-primary);margin:0}.section-icon{font-size:1.5rem;color:var(--primary)}.loading-state,.empty-state{text-align:center;padding:4rem 2rem;color:var(--text-secondary)}.loading-state .spinning{font-size:2rem;margin-bottom:1rem;color:var(--primary)}.empty-icon{font-size:3rem;margin-bottom:1rem;color:var(--border)}.empty-state p{font-size:1.125rem}.users-table-container{overflow-x:auto}.users-table{width:100%;border-collapse:collapse}.users-table thead{background:var(--background)}.users-table th{padding:1rem;text-align:left;font-weight:600;color:var(--text-primary);font-size:.8125rem;text-transform:uppercase;letter-spacing:.8px;border-bottom:2px solid var(--border)}.users-table td{padding:1rem;border-bottom:1px solid var(--border);color:var(--text-primary)}.users-table tbody tr:hover{background:var(--background)}.users-table tbody tr:last-child td{border-bottom:none}.user-cell{display:flex;align-items:center;gap:.5rem}.user-indicator{font-size:.875rem;color:var(--secondary)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0f172a99;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.modal-content{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:2rem;width:100%;max-width:500px;box-shadow:0 20px 60px #0f172a4d}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:2px solid var(--border)}.modal-header h2{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin:0}.modal-close{background:none;border:none;font-size:2rem;color:var(--text-secondary);cursor:pointer;padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:6px;transition:all .2s ease}.modal-close:hover{background:var(--background);color:var(--text-primary)}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:600;color:var(--text-primary);font-size:.9375rem}.form-group input{width:100%;padding:.75rem;border:1px solid var(--border);border-radius:10px;font-size:1rem;transition:all .2s ease;background:var(--surface);color:var(--text-primary)}.form-group input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #1e40af1a}.form-actions{display:flex;gap:1rem;justify-content:flex-end;margin-top:2rem}@media (max-width: 768px){.app-main{padding:1rem}.stats-grid{grid-template-columns:1fr}.users-table{font-size:.875rem}.users-table th,.users-table td{padding:.75rem .5rem}}.error-banner{background-color:#fee;border:1px solid #fcc;border-radius:8px;padding:12px 16px;margin-bottom:20px;display:flex;justify-content:space-between;align-items:center;color:#c33;animation:slideDown .3s ease-out}.error-banner p{margin:0;font-size:14px}.error-banner button{background:none;border:none;color:#c33;font-size:20px;cursor:pointer;padding:0 8px;line-height:1}.error-banner button:hover{color:#a22}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#f8fafc;color:#1e293b;line-height:1.6}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}