body{margin:0;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}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}:root{--navbar-padding-vertical: .7rem;--navbar-padding-horizontal: 2rem;--navbar-nexus-logo-height: 80px;--navbar-smartskill-logo-height: 40px;--navbar-total-height: calc(var(--navbar-padding-vertical) * 2 + var(--navbar-nexus-logo-height))}.navbar{display:flex;justify-content:space-between;align-items:center;padding:var(--navbar-padding-vertical) var(--navbar-padding-horizontal);background-color:#2c3e50;color:#fff}.navbar-brand 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.user-name{margin-right:.5rem;font-size:1.1rem;font-weight:500;color:#fff!important}.user-avatar{width:2.8rem;height:2.8rem;border-radius:50%;object-fit:cover}.logout-button,.login-button{background:linear-gradient(135deg,#02e4d6,#00b8a9);color:#fff;border:none;border-radius:8px;padding:.65rem 1.2rem;cursor:pointer;font-weight:600;font-size:1.05rem;transition:all .3s ease;box-shadow:0 2px 8px #02e4d64d}.logout-button:hover,.login-button:hover{background:linear-gradient(135deg,#00b8a9,#009688);transform:translateY(-1px);box-shadow:0 4px 12px #02e4d666}@media(max-width:768px){:root{--navbar-padding-vertical: .75rem;--navbar-padding-horizontal: 1rem;--navbar-nexus-logo-height: 50px;--navbar-smartskill-logo-height: 25px;--navbar-total-height: 200px}.navbar{flex-direction:column;padding:var(--navbar-padding-vertical) 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10px;background-color:#0000000d;border-radius:12px;font-size:11px;color:#00000080;font-family:Segoe UI,system-ui,-apple-system,sans-serif;z-index:999;-webkit-user-select:none;user-select:none;pointer-events:none;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);transition:opacity .2s ease}.version-display:hover{opacity:.8}.version-text{font-weight:600;letter-spacing:.3px}.build-date{opacity:.7;font-size:10px}@media(prefers-color-scheme:dark){.version-display{background-color:#ffffff14;color:#fff9}}@media(max-width:480px){.version-display{font-size:10px;padding:3px 8px;bottom:6px;right:6px}.build-date{display:none}}.producer-switcher{position:fixed;top:var(--navbar-total-height);left:20px;z-index:900;display:inline-block}.producer-switcher.loading{display:flex;align-items:center;gap:8px;padding:8px 16px;color:#666;font-size:14px}.spinner-small{width:16px;height:16px;border:2px solid #f3f3f3;border-top:2px solid #3498db;border-radius:50%;animation:spin 1s linear 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slideDown{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.producer-dropdown-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid #f0f0f0;font-size:12px;font-weight:600;color:#666;text-transform:uppercase;letter-spacing:.5px}.producer-count{background:#3498db;color:#fff;padding:2px 8px;border-radius:12px;font-size:11px}.producer-list{max-height:400px;overflow-y:auto}.producer-item{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:none;border:none;width:100%;cursor:pointer;transition:background-color .2s ease;text-align:left}.producer-item:hover{background-color:#f8f9fa}.producer-item.active{background-color:#e3f2fd}.producer-item.empty{color:#999;cursor:default;font-style:italic}.producer-item.empty:hover{background:none}.producer-item-content{display:flex;flex-direction:column;gap:4px;flex:1;min-width:0}.producer-item-name{font-size:14px;font-weight:600;color:#333}.producer-item.active .producer-item-name{color:#2980b9}.producer-item-description{font-size:12px;color:#666;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.check-mark{color:#2980b9;font-size:16px;font-weight:700;flex-shrink:0}.producer-dropdown-footer{padding:8px 16px;border-top:1px solid #f0f0f0;background-color:#fafafa;border-radius:0 0 6px 6px}.inactive-note{font-size:11px;color:#999;font-style:italic}@media(max-width:768px){.producer-switcher{left:10px;top:var(--navbar-total-height)}.producer-switcher-button{min-width:auto;max-width:calc(100vw - 20px);padding:6px 12px}.producer-icon{font-size:16px}.producer-label{display:none}.producer-name{font-size:12px;max-width:150px}.producer-dropdown{min-width:auto;left:0;right:auto;width:calc(100vw - 20px);max-width:350px}}@media(max-width:480px){.producer-switcher{left:8px;top:var(--navbar-total-height)}.producer-switcher-button{padding:5px 10px;gap:8px}.producer-icon{font-size:14px}.producer-name{font-size:11px;max-width:120px}.dropdown-arrow{font-size:8px}}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(135deg,#f8fafc,#e2e8f0);background-attachment:fixed;color:#333;line-height:1.6}.App{min-height:100vh;display:flex;flex-direction:column}.main-content{flex:1}a{color:#3498db;text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer}.App-header{background-color:#282c34;padding:20px;color:#fff}main{padding:20px}