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

        body {
            font-family: 'Roboto', sans-serif;
            background-color: #f4f4f4;
            color: #333;
            line-height: 1.6;
        }


        nav {
            background-color: #D32F2F;
            color: white;
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-shadow: 0 2px 5px rgba(0,0,0,0.2);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: bold;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .nav-links a {
            color: white;
            text-decoration: none;
            margin-left: 20px;
            font-weight: 500;
            transition: color 0.3s;
        }

        .nav-links a:hover {
            color: #ffcccc;
        }


        .container {
            max-width: 1200px;
            margin: 40px auto;
            padding: 0 20px;
            text-align: center;
        }

        h1 {
            margin-bottom: 40px;
            color: #2c3e50;
        }

        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin-bottom: 40px;
        }

        .action-card {
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
            cursor: pointer;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border-bottom: 5px solid #D32F2F;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .action-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.15);
        }

        .action-card i {
            font-size: 3rem;
            color: #D32F2F;
            margin-bottom: 15px;
        }

        .action-card h3 {
            font-size: 1.2rem;
        }


        .quiz-container {
            margin-top: 50px;
        }

        .quiz-btn {
            display: block;
            width: 100%;
            background: linear-gradient(135deg, #D32F2F 0%, #b71c1c 100%);
            color: white;
            padding: 30px;
            text-decoration: none;
            font-size: 1.5rem;
            font-weight: bold;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(211, 47, 47, 0.4);
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .quiz-btn:hover {
            transform: scale(1.02);
            box-shadow: 0 8px 25px rgba(211, 47, 47, 0.6);
        }

        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            display: flex;
            justify-content: center;
            align-items: center;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease;
            z-index: 2000;
        }

        .modal-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        .modal-content {
            background: white;
            padding: 40px;
            border-radius: 10px;
            width: 90%;
            max-width: 600px;
            position: relative;
            transform: translateY(-20px);
            transition: transform 0.3s ease;
        }

        .modal-overlay.active .modal-content {
            transform: translateY(0);
        }

        .close-btn {
            position: absolute;
            top: 15px;
            right: 20px;
            font-size: 2rem;
            cursor: pointer;
            color: #888;
        }

        .close-btn:hover {
            color: #D32F2F;
        }

        .modal-body ul {
            text-align: left;
            margin-top: 20px;
            padding-left: 20px;
        }
        
        .modal-body li {
            margin-bottom: 10px;
        }