.skills-header {
            text-align: center;
            margin-bottom: 50px;
            position: relative;
        }

        .skills-header h2 {
            font-size: 2.8rem;
            font-weight: 700;
            color: #0563bb;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .skills-header p {
            color: #666666;
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        .skills-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
            gap: 12px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .skill-card {
            position: relative;
            background: #ffffff;
            border: 2px solid #e0e0e0;
            border-radius: 12px;
            padding: 16px 12px;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .skill-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, #0563bb 0%, #0d7ee6 100%);
            opacity: 0;
            transition: opacity 0.3s ease;
            z-index: 0;
        }

        .skill-card.active::before,
        .skill-card:hover::before {
            opacity: 0.08;
        }

        .skill-card:hover {
            transform: translateY(-4px);
            border-color: #0563bb;
            box-shadow: 0 8px 20px rgba(5, 99, 187, 0.15);
        }

        .skill-card.active {
            background: rgba(5, 99, 187, 0.05);
            border-color: #0563bb;
            box-shadow: 0 4px 12px rgba(5, 99, 187, 0.2);
        }

        .skill-card.active .skill-icon {
            transform: scale(1.05);
        }

        .skill-icon {
            font-size: 1.8rem;
            margin-bottom: 8px;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            z-index: 1;
            display: inline-block;
            color: #0563bb;
        }

        .skill-card:hover .skill-icon {
            transform: scale(1.1);
        }

        .skill-name {
            font-size: 0.8rem;
            font-weight: 600;
            color: #333333;
            margin: 0;
            position: relative;
            z-index: 1;
            transition: all 0.3s ease;
            line-height: 1.3;
        }

        .skill-card:hover .skill-name,
        .skill-card.active .skill-name {
            color: #0563bb;
        }

        /* Icon colors variation */
        .skill-card:nth-child(6n+1) .skill-icon { color: #0563bb; }
        .skill-card:nth-child(6n+2) .skill-icon { color: #0d7ee6; }
        .skill-card:nth-child(6n+3) .skill-icon { color: #0d7ee6; }
        .skill-card:nth-child(6n+4) .skill-icon { color: #044a94; }
        .skill-card:nth-child(6n+5) .skill-icon { color: #0563bb; }
        .skill-card:nth-child(6n+6) .skill-icon { color: #0d7ee6; }

        /* Category badges */
        .category-filter {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .category-btn {
            padding: 8px 20px;
            border-radius: 50px;
            border: 2px solid #e0e0e0;
            background: #ffffff;
            color: #666666;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 0.85rem;
        }

        .category-btn:hover,
        .category-btn.active {
            background: #0563bb;
            border-color: #0563bb;
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(5, 99, 187, 0.25);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .skills-header h2 {
                font-size: 2rem;
            }
            
            .skills-grid {
                grid-template-columns: repeat(auto-fit, minmax(95px, 1fr));
                gap: 10px;
            }

            .skill-card {
                padding: 14px 10px;
            }

            .skill-icon {
                font-size: 1.5rem;
            }

            .skill-name {
                font-size: 0.75rem;
            }
        }