.pipe-demo {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
}
.code-block {
    margin: 25px 0;
    position: relative;
}
.pipe-example {
    background: #1a1a1a;
    color: #f8f8f2;
    padding: 15px;
    border-radius: 6px;
    margin: 10px 0;
    font-family: 'Consolas', monospace;
}
.input-output {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px;
    background: white;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    margin: 10px 0;
}
.input {
    color: #dc3545;
    font-weight: bold;
}
.output {
    color: #28a745;
    font-weight: bold;
}
.arrow {
    color: #6c757d;
    margin: 0 15px;
}
.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;
}
.pipe-chain {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}
.pipe-item {
    background: #4a90e2;
    color: white;
    padding: 10px 20px;
    border-radius: 20px;
    margin: 10px;
    position: relative;
}
.pipe-item:after {
    content: '→';
    position: absolute;
    right: -25px;
    color: #6c757d;
}
.pipe-item:last-child:after {
    content: '';
}