body {
            font-family: 'Poppins', sans-serif;
            margin: 0;
            background: linear-gradient(to right, #f4f6fa, #e0ecff);
            color: #333;
        }

        header {
            background: #1e3a8a;
            color: white;
            padding: 15px 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        header h1 {
            margin: 0;
            font-size: 24px;
        }

        header h1 a {
            color: white;
            text-decoration: none;
        }

        nav {
            display: flex;
            gap: 20px;
        }

        nav a {
            color: white;
            text-decoration: none;
            font-weight: 500;
        }

        .menu-toggle {
            display: none;
            font-size: 26px;
            cursor: pointer;
            color: white;
        }

        .tools-container {
            max-width: 1300px;
            margin: 50px auto;
            padding: 0 20px;
        }

        .tools-container h2 {
            font-size: 36px;
            margin-bottom: 50px;
            color: #1e3a8a;
            text-align: center;
            text-shadow: 1px 1px 2px #ccc;
        }

        .tool-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 30px;
        }

        .tool-card {
            background: white;
            border-radius: 20px;
            text-align: center;
            padding: 30px 20px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
            border: 1px solid #e2e8f0;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            position: relative;
        }

        .tool-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
        }

        .tool-card img {
            width: 60px;
            height: 60px;
            margin-bottom: 15px;
        }

        .tool-card p {
            font-size: 18px;
            font-weight: 600;
            color: #1e3a8a;
            margin: 10px 0 20px;
        }

        .details-btn {
            background-color: #1e3a8a;
            color: white;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 500;
            border: none;
            border-radius: 30px;
            cursor: pointer;
            transition: background 0.3s ease, transform 0.2s ease;
        }

        .details-btn:hover {
            background-color: #3b5bdb;
            transform: scale(1.05);
        }

        footer {
            background: #1e3a8a;
            color: white;
            text-align: center;
            padding: 15px 10px;
            margin-top: 60px;
        }

        footer a {
            color: #cbd5e1;
            margin: 0 10px;
            text-decoration: none;
        }

        @media (max-width: 768px) {
            header {
                flex-wrap: wrap;
                justify-content: space-between;
            }

            .menu-toggle {
                display: block;
            }

            nav {
                display: none;
                flex-direction: column;
                background-color: #1e3a8a;
                width: 100%;
                text-align: center;
                padding: 10px 0;
            }

            nav a {
                margin: 10px 0;
                display: block;
            }

            nav.active {
                display: flex;
            }
        }