:root {
    --navbar-height: 80px; /* Easily adjustable navbar height */
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, sans-serif;
}

/* Navigation Bar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    background-color: #333;
    height: var(--navbar-height);
}

.navbar .logo {
    height: calc(var(--navbar-height) - 20px);
}

.navbar .nav-links a {
    color: white;
    margin-left: 20px;
    text-decoration: none;
    line-height: var(--navbar-height);
}

/* Banner Image */
.banner img {
    width: 100%;
    height: auto;
}

/* Container Row - 3 Containers Side by Side */
.container-row {
    display: flex;
    justify-content: space-between;
    padding: 20px;
}

.container {
    width: 30%;
    background-color: #f9f9f9;
    padding: 15px;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.container img {
    width: 100%;
    height: auto;
    margin-bottom: 10px;
}

/* Case Studies Section */
.case-study-heading {
    text-align