* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}


.top-header {
    background-color: #f1f1f1;
    overflow: hidden; 
    padding: 10px 0;
    border-bottom: 1px solid #ddd;
}

.marquee-content {
    display: inline-block;
    white-space: nowrap;
    
    animation: moveLeft 15s linear infinite; 
}

.marquee-content a {
    margin: 0 50px;
    text-decoration: none;
    color: #333;
    font-weight: bold;
}

@keyframes moveLeft {
    from { 
        transform: translateX(100%);
    } 
    to { 
        transform: translateX(-100%); 
    }
}


.navigation {
    background-color: #4CAF50;
    padding: 12px;
}

.navigation ul {
    list-style: none;
    display: flex; 
    justify-content: center;
}

.navigation li a {
    color: white;
    padding: 10px 25px;
    text-decoration: none;
    transition: background 0.3s;
}

.navigation li a:hover {
    background-color: #45a049;
    border-radius: 4px;
}


.header {
    display: flex;
    align-items: center;
    height: 120px;
    background-color: #fff;
    padding: 0 20px;
}

.logo {
    flex: 1; 
    font-size: 24px;
    font-weight: bold;
    color: #4CAF50;
}

.banner {
    flex: 4; 
    background-color: #ffebee;
    height: 80%;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    border: 1px dashed #ffcdd2;
}

.main-container {
    display: flex; 
    min-height: 500px;
    padding: 20px;
    gap: 20px;
}

.sidebar {
    flex: 1; 
    background-color: #f9f9f9;
    padding: 20px;
    border: 1px solid #eee;
    border-radius: 5px;
}

.sidebar h3 {
    margin-bottom: 15px;
    color: #2e7d32;
    border-bottom: 2px solid #4CAF50;
}

.sidebar ul {
    list-style: none;
}

.sidebar ul li {
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
}

.content-area {
    flex: 3; 
    display: flex;
    flex-wrap: wrap; 
    gap: 20px;
    align-content: flex-start;
}

.item {
    width: calc(33.33% - 14px); 
    height: 200px;
    background-color: white;
    border: 1px solid #ddd;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1); 
    transition: transform 0.3s; 
}

.item:hover {
    transform: scale(1.05); 
}


.footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 30px;
    margin-top: 20px;
}

.footer p {
    margin: 5px 0;
}