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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #0f0f1e 0%, #1a1a2e 100%);
            color: #e0e0e0;
            min-height: 100vh;
        }

        /* Header */
        .header {
            background: rgba(20, 20, 35, 0.95);
            backdrop-filter: blur(10px);
            padding: 1rem 2rem;
            box-shadow: 0 2px 20px rgba(0, 123, 255, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .nav-container {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            display: flex;
            align-items: center;
            font-size: 1.8rem;
            font-weight: bold;
            color: #007bff;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .logo:hover {
            transform: scale(1.05);
            text-shadow: 0 0 20px rgba(0, 123, 255, 0.5);
        }

        .logo-icon {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, #007bff, #0056b3);
            border-radius: 8px;
            margin-right: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            overflow: hidden;
        }

        .logo-icon img {
            width: 100%;
            height: 100%;
            object-fit: contain;
            display: block;
        }

        .nav-buttons {
            display: flex;
            gap: 1rem;
        }

        .nav-btn {
            padding: 0.7rem 1.5rem;
            background: transparent;
            color: #e0e0e0;
            border: 2px solid #007bff;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 500;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .nav-btn:hover {
            background: #007bff;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 123, 255, 0.4);
        }

        .nav-btn.primary {
            background: linear-gradient(135deg, #007bff, #0056b3);
            border: none;
        }

        .nav-btn.primary:hover {
            background: linear-gradient(135deg, #0056b3, #003d82);
            box-shadow: 0 5px 20px rgba(0, 123, 255, 0.6);
        }

        /* Hero Section */
        .hero {
            text-align: center;
            padding: 4rem 2rem;
            max-width: 1000px;
            margin: 0 auto;
        }

        .hero h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #007bff, #00d4ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            animation: glow 2s ease-in-out infinite alternate;
        }

        @keyframes glow {
            from { filter: brightness(1); }
            to { filter: brightness(1.2); }
        }

        .hero p {
            font-size: 1.2rem;
            color: #a0a0a0;
            margin-bottom: 2rem;
        }

        /* Categories Container */
        .categories-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 2rem;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
        }

        .category {
            background: rgba(30, 30, 50, 0.7);
            border-radius: 20px;
            padding: 2rem;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(0, 123, 255, 0.2);
            transition: all 0.3s ease;
        }

        .category:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 40px rgba(0, 123, 255, 0.3);
            border-color: #007bff;
        }

        .category-header {
            display: flex;
            align-items: center;
            margin-bottom: 1.5rem;
        }

        .category-icon {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #007bff, #0056b3);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-right: 1rem;
            overflow: hidden;
    
        }

        .category-icon img {
            width: 60%;
            height: auto;
            object-fit: contain;

        }

        .category h2 {
            color: #007bff;
            font-size: 1.8rem;
        }

        .category-description {
            color: #a0a0a0;
            margin-bottom: 2rem;
            line-height: 1.6;
        }

        .tools-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
            gap: 1rem;
        }

        .tool-btn {
            padding: 1.5rem 1rem;
            background: rgba(0, 123, 255, 0.1);
            border: 2px solid transparent;
            border-radius: 12px;
            color: #e0e0e0;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.5rem;
            font-weight: 500;
        }

        .tool-btn:hover {
            background: rgba(0, 123, 255, 0.2);
            border-color: #007bff;
            transform: translateY(-3px) scale(1.05);
            box-shadow: 0 5px 20px rgba(0, 123, 255, 0.4);
        }

        .tool-icon {
            font-size: 2rem;
            margin-bottom: 0.5rem;
        }

        /* Footer */
        .footer {
            text-align: center;
            padding: 3rem 2rem;
            margin-top: 4rem;
            border-top: 1px solid rgba(0, 123, 255, 0.2);
            color: #666;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2rem;
            }
            
            .categories-container {
                grid-template-columns: 1fr;
            }
            
            .nav-buttons {
                gap: 0.5rem;
            }
            
            .nav-btn {
                padding: 0.5rem 1rem;
                font-size: 0.9rem;
            }
        }

        /* Animations */
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .category {
            animation: fadeIn 0.6s ease-out;
        }

        .category:nth-child(2) {
            animation-delay: 0.2s;
        }

        .category:nth-child(3) {
            animation-delay: 0.4s;
        }