.command-block {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 1rem;
    border-radius: 8px;
    margin: 1rem 0;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    overflow-x: auto;
}

.command-block .comment {
    color: #e74c3c;
}

.command-block .command {
    color: #f39c12;
}

.info-box {
    background: #f8f9fa;
    border-left: 4px solid #2196F3;
    padding: 1rem;
    border-radius: 4px;
}

.warning-box {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 1rem;
    margin: 1rem 0;
    border-radius: 4px;
}

.success-box {
    background: #d4edda;
    border-left: 4px solid #28a745;
    padding: 1rem;
    margin: 1rem 0;
    border-radius: 4px;
}

.step-counter {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-radius: 50%;
    font-weight: bold;
    margin-right: 0.5rem;
}

.installation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.os-card {
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.checklist {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 1rem;
}

.checklist ul {
    list-style: none;
    padding: 0;
}

.checklist li {
    display: flex;
    align-items: center;
    padding: 0.2rem;
    background: white;
    border-radius: 5px;
    font-size: 0.95rem;
}

.checklist li::before {
    content: "✅";
    margin-right: 0.75rem;
    font-size: 1.1rem;
}