body {
            background-color: #0f0f0f;
            color: #cccccc;
            font-family: 'Times New Roman', serif;
            position: relative;
            overflow-x: hidden;
        }
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: repeating-linear-gradient(
                0deg,
                rgba(0, 0, 0, 0.97) 0px,
                rgba(0, 0, 0, 0.97) 1px,
                transparent 1px,
                transparent 2px
            );
            pointer-events: none;
            z-index: 1;
        }
        .container {
            position: relative;
            z-index: 2;
        }
        .quiz-container {
            background-color: #1a1a1a;
            border: 1px solid #333;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
            transition: all 0.5s ease;
        }
        .quiz-container:hover {
            transform: scale(1.001);
        }
        .answer-btn {
            transition: all 0.3s ease;
            border: 1px solid #333;
            font-family: 'Times New Roman', serif;
        }
        .answer-btn:hover {
            background-color: #2a2a2a;
            transform: scale(1.01);
            border-color: #444;
        }
        .correct {
            background-color: #1a2a1a !important;
            border-color: #2a3a2a !important;
        }
        .wrong {
            background-color: #2a1a1a !important;
            border-color: #3a2a2a !important;
        }
        .progress-bar {
            height: 2px;
            background-color: #2a2a2a;
            overflow: hidden;
        }
        .progress-fill {
            height: 100%;
            background-color: #4a4a4a;
            transition: width 0.5s ease;
        }
        .subtle-text {
            letter-spacing: 1px;
        }
        @keyframes subtle-distort {
            0% { transform: skew(0deg); }
            25% { transform: skew(0.1deg); }
            75% { transform: skew(-0.1deg); }
            100% { transform: skew(0deg); }
        }
        .distort {
            animation: subtle-distort 5s infinite;
            display: inline-block;
        }
        @keyframes fade {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.98; }
        }
        .fade-effect {
            animation: fade 3s infinite;
        }