*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6;color:#2c3e50;background:#f5f5f5}.loading{display:flex;align-items:center;justify-content:center;padding:48px;color:#999;font-size:1.1rem}.app-layout{min-height:100vh;display:flex;flex-direction:column}.app-header{background:#2c3e50;color:#fff;padding:12px 24px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}.app-main{flex:1;max-width:1100px;width:100%;margin:0 auto;padding:24px}.nav-link{color:#bdc3c7;text-decoration:none;font-size:.9rem;padding:4px 8px;border-radius:4px;transition:color .15s,background .15s}.nav-link:hover{color:#fff;background:rgba(255,255,255,.1)}.nav-link.active{color:#fff;background:rgba(255,255,255,.2);font-weight:800}.role-badge{display:block;padding:2px 0;border-radius:8px;font-size:.8rem;font-weight:600;background:rgba(255,255,255,.15);color:#f8f8f8;text-align:center;margin-top:2px}.btn{display:inline-block;padding:10px 20px;border:none;border-radius:6px;cursor:pointer;font-size:.9rem;font-weight:500;transition:transform .1s,box-shadow .1s;color:#fff;background:#95a5a6}.btn:hover{transform:translateY(-1px);box-shadow:0 2px 6px #00000026}.btn:active{transform:translateY(0)}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-primary{background:#3498db}.btn-sm{padding:6px 14px;font-size:.8rem}.btn-full{width:100%}.card{background:#fff;border-radius:8px;padding:20px;box-shadow:0 1px 4px #00000014;transition:box-shadow .15s}.card:hover{box-shadow:0 2px 8px #0000001f}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:16px;margin-top:16px}.tab-bar{display:flex;gap:4px;border-bottom:2px solid #e0e0e0;margin-bottom:16px}.tab{padding:10px 20px;border:none;background:none;cursor:pointer;font-size:.9rem;color:#777;border-bottom:2px solid transparent;margin-bottom:-2px;transition:color .15s,border-color .15s}.tab:hover{color:#2c3e50}.tab.active{color:#3498db;border-bottom-color:#3498db;font-weight:600}.data-table{width:100%;border-collapse:collapse;margin-top:8px}.data-table th,.data-table td{text-align:left;padding:10px 12px;border-bottom:1px solid #eee}.data-table th{font-weight:600;font-size:.85rem;color:#777;text-transform:uppercase;letter-spacing:.03em}.data-table tbody tr:hover{background:#f9f9f9}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:linear-gradient(135deg,#2c3e50 0%,#3498db 100%)}.login-card{background:#fff;border-radius:12px;padding:40px;width:100%;max-width:420px;box-shadow:0 4px 20px #00000026;text-align:center}.login-card h1{font-size:2rem;color:#2c3e50;margin-bottom:4px}.form-group{margin-bottom:16px;text-align:left}.form-group label{display:block;margin-bottom:4px;font-weight:500;font-size:.9rem;color:#555}.form-group input{width:100%;padding:10px 12px;border:2px solid #ddd;border-radius:6px;font-size:.95rem;transition:border-color .15s}.form-group input:focus{outline:none;border-color:#3498db}.error-message{background:#fde8e8;color:#c0392b;padding:10px 16px;border-radius:6px;font-size:.9rem;margin-bottom:16px;border-left:4px solid #e74c3c}.success-message{background:#e8f8e8;color:#27ae60;padding:10px 16px;border-radius:6px;font-size:.9rem;margin-bottom:16px;border-left:4px solid #27ae60}.slot-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:8px;margin-top:8px}.slot-btn{padding:10px 12px;border:2px solid #ddd;border-radius:6px;background:#fff;cursor:pointer;font-size:.85rem;transition:border-color .15s,background .15s}.slot-btn:hover{border-color:#3498db;background:#f0f8ff}.slot-btn.selected{border-color:#3498db;background:#3498db;color:#fff;font-weight:600}@media (max-width: 600px){.app-header{flex-direction:column;align-items:flex-start}.card-grid{grid-template-columns:1fr}.slot-grid{grid-template-columns:1fr 1fr}.login-card{padding:24px}}