.project-container {
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    background-color: #f8f9fa;
}
.todo-app {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.todo-item {
    transition: all 0.3s ease;
}
.todo-item.completed {
    opacity: 0.7;
    text-decoration: line-through;
}
.code-comment {
    color: #6a9955;
    font-style: italic;
}
.note-box {
    background-color: #f8f9fa;
    border-left: 4px solid #007bff;
    padding: 15px;
    margin: 20px 0;
    border-radius: 4px;
}
.warning-box {
    background-color: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 15px;
    margin: 20px 0;
    border-radius: 4px;
}
.feature-card {
    transition: transform 0.2s;
    height: 100%;
}
.feature-card:hover {
    transform: translateY(-5px);
}
.step-number {
    display: inline-block;
    width: 30px;
    height: 30px;
    background: #007bff;
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 30px;
    margin-right: 10px;
}