:root{--primary: #1B3E92;--primary-light: #2E5AB8;--secondary: #64748b;--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--background: #f8fafc;--surface: #ffffff;--text: #1e293b;--text-light: #64748b;--border: #e2e8f0;--bronze: #cd7f32;--silver: #c0c0c0;--gold: #ffd700;--diamond: #b9f2ff}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background:var(--background);color:var(--text);line-height:1.6}.app{display:flex;min-height:100vh}.sidebar{width:260px;background:var(--surface);border-right:1px solid var(--border);padding:1.5rem 1rem;display:flex;flex-direction:column}.sidebar-logo{font-size:1.5rem;font-weight:700;color:var(--primary);margin-bottom:2rem;padding:0 .5rem}.sidebar-nav{display:flex;flex-direction:column;gap:.25rem}.nav-link{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;color:var(--text-light);text-decoration:none;border-radius:.5rem;transition:all .2s}.nav-link .material-icons{font-size:20px;color:var(--primary)}.nav-link:hover{background:var(--background);color:var(--text)}.nav-link.active{background:var(--primary);color:#fff}.main-content{flex:1;padding:2rem;overflow-y:auto}.page-header{margin-bottom:2rem}.page-title{font-size:1.75rem;font-weight:600;color:var(--text)}.page-subtitle{color:var(--text-light);margin-top:.25rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:.75rem;padding:1.5rem}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.card-title{font-size:1.125rem;font-weight:600}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.625rem 1.25rem;border-radius:.5rem;font-weight:500;font-size:.875rem;cursor:pointer;transition:all .2s;border:none}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-light)}.btn-secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--background)}.btn-success{background:var(--success);color:#fff}.btn-danger{background:var(--danger);color:#fff}.form-group{margin-bottom:1rem}.form-label{display:block;font-size:.875rem;font-weight:500;margin-bottom:.375rem;color:var(--text)}.form-input{width:100%;padding:.625rem .875rem;border:1px solid var(--border);border-radius:.5rem;font-size:.875rem;transition:border-color .2s}.form-input:focus{outline:none;border-color:var(--primary)}.form-select{width:100%;padding:.625rem .875rem;border:1px solid var(--border);border-radius:.5rem;font-size:.875rem;background:#fff}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-bottom:2rem}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:.75rem;padding:1.25rem}.stat-value{font-size:2rem;font-weight:700;color:var(--text)}.stat-label{font-size:.875rem;color:var(--text-light);margin-top:.25rem}.badge{display:inline-block;padding:.25rem .625rem;font-size:.75rem;font-weight:500;border-radius:999px}.badge-success{background:#dcfce7;color:#166534}.badge-warning{background:#fef3c7;color:#92400e}.badge-danger{background:#fee2e2;color:#991b1b}.badge-info{background:#dbeafe;color:#1e40af}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:.875rem 1rem;text-align:left;border-bottom:1px solid var(--border)}.table th{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-light);background:var(--background)}.table tbody tr:hover{background:var(--background)}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary) 0%,#1e3a8a 100%)}.auth-card{width:100%;max-width:400px;background:#fff;border-radius:1rem;padding:2rem}.auth-logo{font-size:1.5rem;font-weight:700;color:var(--primary);text-align:center;margin-bottom:.5rem}.auth-subtitle{text-align:center;color:var(--text-light);margin-bottom:2rem}.level-bronze{color:var(--bronze)}.level-silver{color:var(--silver)}.level-gold{color:var(--gold)}.level-diamond{color:var(--primary-light)}.wallet-balance{font-size:2.5rem;font-weight:700;color:var(--primary)}.painter-wallet{background:linear-gradient(135deg,var(--primary) 0%,#1e3a8a 100%);color:#fff;border-radius:1rem;padding:2rem;margin-bottom:2rem}.painter-wallet .balance-label{opacity:.8;font-size:.875rem}.qr-scanner{width:100%;max-width:400px;margin:0 auto}.camera-not-available{background:var(--background);border:2px dashed var(--border);border-radius:.75rem;padding:3rem;text-align:center;color:var(--text-light)}@media (max-width: 768px){.sidebar{display:none}.main-content{padding:1rem}}