/* greycrust-b1: Card Container (Flexbox for responsiveness) */
        .greycrust-b1 {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 30px; /* Space between cards */
            max-width: 97%;
            margin: 0 auto;
            padding: 0 20px 40px; /* Added bottom padding */
        }

        /* greycrust-b2: Card Styling */
        .greycrust-b2 {
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
            display: flex;
            flex-direction: column;
            overflow: hidden;
            width: calc(33.333% - 20px); /* Default: 3 Columns for large screens */
            min-width: 300px;
            flex-grow: 1; 
            transition: transform 0.3s ease, box-shadow 0.3s ease; /* Animation for card hover */
        }

        /* .greycrust-b2:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15); 
        } */

        /* greycrust-b3: Card Image Wrapper */
        .greycrust-b3 {
            height: 180px;
            overflow: hidden;
            position: relative;
        }

        /* greycrust-b3 img: Image Styling */
        .greycrust-b3 img {
            width: 100%;
            height: 100%;
            object-fit: cover; /* Ensures image covers the area without distortion */
            display: block;
            transition: transform 0.4s ease-out; /* Image zoom animation */
        }

        .greycrust-b2:hover .greycrust-b3 img {
            transform: scale(1.05); /* Slight zoom on image hover */
        }

        /* greycrust-b4: Card Image Text Overlay */
        .greycrust-b4 { 
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to top, rgba(0,0,0,0.6), rgba(0,0,0,0.1));
            display: flex;
            align-items: flex-end; /* Align text to bottom */
            padding: 20px;
            color: white;
            font-weight: bold;
            font-size: 1.6em;
            text-align: left;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
        }

        /* greycrust-b5: Card Body */
        .greycrust-b5 {
            padding: 25px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        /* greycrust-b6: Card Type (e.g., 'Research Report') */
        .greycrust-b6 {
            color: #00aeff;
            font-size: 0.95em;
            font-weight: bold;
            margin-bottom: 8px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        /* greycrust-b7: Card Title */
        .greycrust-b7 {
            font-size: 1.4rem;
            margin: 0 0 15px 0;
            line-height: 1.35;
            color: #212529;
        }

        /* greycrust-b8: Card Description */
        .greycrust-b8 {
            font-size: 0.95em;
            color: #666;
            margin-bottom: 25px;
            flex-grow: 1; 
        }

        /* greycrust-b9: Download Button */
        .greycrust-b9 {
            display: block;
            text-align: center;
            padding: 12px 15px;
            border: 2px solid #00bbff;
            color: #00b3ff;
            text-decoration: none;
            
            transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
            font-weight: bold;
            font-size: 1.05em;
            letter-spacing: 0.3px;
        }

        .greycrust-b9:hover {
            background-color: #02b44c;
            color: white;
            transform: translateY(-2px); /* Subtle lift on button hover */
            box-shadow: 0 4px 10px rgba(0, 123, 255, 0.2);
        }

        /* ======================================================= */
        /* MEDIA QUERIES (Updated to use new class names)        */
        /* ======================================================= */

        /* 1. Ultra-Wide Desktop (4 columns) */
        @media (min-width: 1500px) {
            .greycrust-b1 {
                max-width: 1600px; /* Allow wider container */
                gap: 40px;
            }
            .greycrust-b2 {
                width: calc(25% - 30px); /* 4 columns */
                min-width: 280px;
            }
        }

        /* 2. Standard Desktop (3 Columns) - Default set above */
        
        /* 3. Laptop/Tablet Landscape (2 Columns) */
        @media (max-width: 1199px) {
            .greycrust-b1 {
                max-width: 960px;
                gap: 25px;
            }
            .greycrust-b2 {
                width: calc(50% - 12.5px); /* Two columns */
                min-width: 320px;
            }
        }

        /* 4. Small Laptop/Large Tablet Portrait (2 Columns, tighter squeeze) */
        @media (max-width: 900px) {
            .greycrust-b1 {
                padding: 0 15px 30px;
                gap: 20px;
            }
            .greycrust-b2 {
                width: calc(50% - 10px); /* Still two columns but smaller margin */
                min-width: 280px;
            }
           
        }

        /* 5. Mobile Landscape / Large Phone (Transition to 1 Column) */
        @media (max-width: 767px) {
            .greycrust-b1 {
                flex-direction: column; /* Force single column */
                gap: 20px;
                padding: 0 20px 30px;
            }
            .greycrust-b2 {
                width: 100%; /* Single column */
                min-width: 0; /* Remove min-width restriction */
                margin-bottom: 0;
            }
         
        }

        /* 6. Extra Small Mobile (Single column, smaller text/padding) */
        @media (max-width: 480px) {
          
            .greycrust-b7 {
                font-size: 1.2em;
            }
            .greycrust-b5 {
                padding: 20px;
            }
            .greycrust-b4 {
                font-size: 1.3em;
                padding: 15px;
            }
            .greycrust-b9 {
                font-size: 0.95em;
                padding: 10px;
            }
        }