.rxjs-demo {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    font-family: 'Consolas', monospace;
}
.code-block {
    margin: 25px 0;
    position: relative;
}
.marble-diagram {
    background: #1a1a1a;
    color: white;
    padding: 15px;
    border-radius: 8px;
    margin: 15px 0;
    overflow-x: auto;
}
.observable-timeline {
    display: flex;
    align-items: center;
    padding: 10px;
    background: #2d2d2d;
    margin: 10px 0;
    border-radius: 4px;
}
.timeline-value {
    color: #61dafb;
    font-weight: bold;
    margin: 0 5px;
}
.operator-box {
    background: #4a90e2;
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    margin: 0 10px;
    font-size: 0.9em;
}
.note-box {
    background: #e7f3ff;
    border-left: 4px solid #2196f3;
    padding: 15px;
    margin: 20px 0;
    border-radius: 4px;
}
.warning-box {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 15px;
    margin: 20px 0;
    border-radius: 4px;
}
.success-box {
    background: #d4edda;
    border-left: 4px solid #28a745;
    padding: 15px;
    margin: 20px 0;
    border-radius: 4px;
}
.state-diagram {
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    background: white;
}
.state-item {
    padding: 10px;
    margin: 5px 0;
    border-radius: 4px;
    background: #f8f9fa;
}