.desalination-header {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)),url('/images/municipal/desalination.png') center/cover no-repeat;
    color: white;
    padding: 100px 20px;
    text-align: center;
    position: relative;
    margin-top: 80px;
}

.desalination-header h1 {
    font-size: 3rem;
    margin: 0;
}

.desalination-header h2 {
    font-size: 1.5rem;
    margin: 10px 0 0;
}

.desalination-content-section {
    max-width: 1200px;
    margin: 35px auto;
}

.desalination-content-section h2 {
    font-size: 1.75rem;
    margin-bottom: 10px;
    color: #1c2835;
}

.desalination-content-section p, .desalination-content-section ul {
    margin: 10px 0;
    line-height: 1.6;
}

.desalination-content-section ul {
    list-style: disc;
    padding-left: 20px;
    line-height: 1.6;
}

.challenges-chart {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
    perspective: 1000px; /* Enables 3D effect for the flip */
}

.challenge-card {
    width: 100%;
    height: 220px;
    position: relative;
    transform-style: preserve-3d;
    transform: rotateY(0);
    transition: transform 0.6s ease;
    cursor: pointer;
}

.challenge-card:hover {
    transform: rotateY(180deg); /* Flips the card on hover */
}

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
}

.card-front, .card-back {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.card-front {
    background: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
    border: 0.2px solid grey;
}

.card-front img {
    width: auto;
    height: 150px;
    margin-bottom: 10px;
    object-fit: cover;
    /* border-radius: 50%; */
    /* border: 2px solid #007BFF; */
}

.card-front h3 {
    font-size: 1.25rem;
    color: #1c2835;
    margin: 0;
}

.card-back {
    background: #bd0202;
    color: white;
    transform: rotateY(180deg);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
}


.desalination-cta-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
}

.desalination-cta-buttons a {
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 5px;
    color: white;
    background: #28a745;
}

.desalination-cta-buttons a:hover {
    background: #218838;
}