:root {
            --brand-navy: #0f172a;       /* Deep slate/navy for trust */
            --brand-teal: #0d9488;       /* Clinical Teal accent */
            --brand-blue: #2563eb;       /* Modern tech blue */
            --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
            --hover-shadow: 0 20px 25px -5px rgba(13, 148, 136, 0.1), 0 10px 10px -6px rgba(13, 148, 136, 0.04);
        }

        /* Section Headings Styling */
        .section-tag {
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.15em;
            color: var(--brand-teal);
            font-weight: 700;
            display: inline-block;
            margin-bottom: 0.5rem;
        }

        .section-title {
            color: var(--brand-navy);
            font-weight: 700;
            position: relative;
            margin-bottom: 3rem;
        }

        /* Enhanced Card Design */
        .custom-card {
            background: #ffffff;
            border: none;
            border-radius: 16px;
            box-shadow: var(--card-shadow);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
            height: 100%;
        }

        .custom-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--hover-shadow);
        }

        /* Perfected Image Container */
        .card-img-wrapper {
            position: relative;
            height: 220px;
            background-color: #e2e8f0;
            overflow: hidden;
        }

        .card-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .custom-card:hover .card-img-wrapper img {
            transform: scale(1.06);
        }

        /* Badge overlays on images */
        .img-badge {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: rgba(15, 23, 42, 0.85);
            backdrop-filter: blur(4px);
            color: #ffffff;
            padding: 0.35rem 0.75rem;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 50px;
            letter-spacing: 0.05em;
        }

        .filename-tag {
            position: absolute;
            bottom: 0.5rem;
            left: 0.5rem;
            background: rgba(255, 255, 255, 0.9);
            color: #64748b;
            font-family: monospace;
            font-size: 0.7rem;
            padding: 0.15rem 0.4rem;
            border-radius: 4px;
            border: 1px solid #cbd5e1;
        }

        /* Icon Pill Styling */
        .icon-pill {
            width: 56px;
            height: 56px;
            background: #f0fdfa;
            color: var(--brand-teal);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 1.25rem;
            transition: all 0.3s ease;
        }

        .custom-card:hover .icon-pill {
            background: var(--brand-teal);
            color: #ffffff;
        }

        /* Anchor Tab Navigation */
        .sticky-subnav {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #e2e8f0;
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
        }

        .nav-pills .nav-link {
            color: #64748b;
            font-weight: 500;
            padding: 0.75rem 1.25rem;
            border-radius: 50px;
        }

        .nav-pills .nav-link.active, .nav-pills .show > .nav-link {
            background-color: var(--brand-teal);
            color: white;
        }