/* 1. Base Reset & Typography */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.hr{ color: red;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    display: flex;
    flex-direction: column;
    min-height: 100vh; /* Forces footer to stay at bottom of empty pages */
    background-color: #f4f4f4;
}

/* 2. Header Styles */
.site-header {
    background-color: #f4f4f4;
    color: #333;
    padding: 20px;
    text-align: center;
}

/* 3. Layout Container (Two Columns) */
.main-container {
    max-width: 1200px;
    width: 100%;
    margin: 20px auto;
    padding: 0 20px;
    flex: 1; /* Pushes footer down by stretching the middle area */
    
    /* Grid system setup */
    display: grid;
    grid-template-columns: 3fr 1fr; /* Main content takes 75%, Sidebar takes 25% */
    gap: 20px; /* Space between the columns */
}

/* 4. Column Specific Styles */
.content-area {
    background-color: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.sidebar-area {
    background-color: #e3e9ed;
    padding: 20px;
    border-radius: 5px;
}

/* 5. Footer Styles */
.site-footer {
    background-color: #f4f4f4;
    color: #333;
    text-align: center;
    padding: 15px;
    margin-top: auto;
}

/* 6. Responsive Breakdown for Mobile Screen Sizes */
@media (max-width: 768px) {
    .main-container {
        grid-template-columns: 1fr; /* Stack columns vertically on smaller screens */
    }
}