* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }
        body { background: #000; color: #fff; overflow: hidden; }
        
        /* Loading Screen */
        #loading {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(ellipse at center, #0a0e2a 0%, #000000 100%);
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 2000;
            flex-direction: column;
        }
        
        .spinner {
            width: 60px;
            height: 60px;
            border: 4px solid rgba(79, 172, 254, 0.3);
            border-radius: 50%;
            border-top-color: #4facfe;
            animation: spin 1.5s ease-in-out infinite;
            box-shadow: 0 0 30px rgba(79, 172, 254, 0.5);
        }
        
        @keyframes spin {
            to { transform: rotate(360deg); }
        }
        
        /* Landing Page */
        #landing-page {
            position: fixed; top: 0; left: 0; width: 100%; height: 100%;
            background: url('https://videos.openai.com/vg-assets/assets%2Ftask_01k672pm86ef4sncc8arwpmrrh%2F1759026858_img_0.webp?st=2025-09-28T00%3A52%3A31Z&se=2025-10-04T01%3A52%3A31Z&sks=b&skt=2025-09-28T00%3A52%3A31Z&ske=2025-10-04T01%3A52%3A31Z&sktid=a48cca56-e6da-484e-a814-9c849652bcb3&skoid=aa5ddad1-c91a-4f0a-9aca-e20682cc8969&skv=2019-02-02&sv=2018-11-09&sr=b&sp=r&spr=https%2Chttp&sig=79Fkn9O2q7T2ar%2Fjg4PBCbaXj0glKQMBHGckE1lmMHI%3D&az=oaivgprodscus') no-repeat center center/cover;
            display: flex; flex-direction: column; justify-content: center; align-items: center;
            z-index: 1000;
            overflow: hidden;
        }
        
        .asteroid-bg {
            position: absolute;
            width: 100%;
            height: 100%;
            background: url('https://videos.openai.com/vg-assets/assets%2Ftask_01k672pm86ef4sncc8arwpmrrh%2F1759026858_img_0.webp?st=2025-10-05T03%3A59%3A51Z&se=2025-10-11T04%3A59%3A51Z&sks=b&skt=2025-10-05T03%3A59%3A51Z&ske=2025-10-11T04%3A59%3A51Z&sktid=a48cca56-e6da-484e-a814-9c849652bcb3&skoid=b4ab33b8-2ad4-40af-8ed0-a2b350b6603c&skv=2019-02-02&sv=2018-11-09&sr=b&sp=r&spr=https%2Chttp&sig=s%2Bplr8%2FitxIvzKfAEgZyn60DudRl779lXW3lh52jSeQ%3D&az=oaivgprodscus') no-repeat center center/cover;
            /* animation: float 20s infinite linear; */
            z-index: 0;
        }
        
        @keyframes float {
            0% { transform: translateX(0) translateY(0); }
            100% { transform: translateX(-100px) translateY(-50px); }
        }
        
        .title {
    font-size: 4rem; font-weight:100; margin-bottom: 1rem;
    color: #ffffff; /* Changed from gradient to white */
    text-shadow: 0 0 50px rgba(79, 172, 254, 0.5);
    text-align: center;
    line-height: 1.1;
    letter-spacing: 20px;
    text-indent: 20px;
    z-index: 1;
}
        
        .subtitle {
    font-size: 2.3rem; color: #ffffff; /* Changed from #a0a0c0 to white */
    margin-bottom: 3rem;
    text-align: center; max-width: 700px; line-height: 1.6;
    text-shadow: 0 0 20px rgba(79, 172, 254, 0.3);
    font-weight: 50;
    letter-spacing: 10px;
    text-indent: 20px;
    z-index: 1;
}
        
       .enter-text {
    font-size: 1rem; 
    color: #ffffff;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    font-weight: 600;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
    margin-top: 1rem;
    position: relative;
    letter-spacing: 8px;
}

.enter-text:hover {
    color: #ffffff;
    text-shadow: 0 0 30px rgba(79, 172, 254, 0.8);
    transform: scale(1.05);
}

.enter-text::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: linear-gradient(45deg, #ffffff, #ffffff);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.enter-text:hover::after {
    transform: scaleX(1);
}
#enter-visualization {
    font-size: 1rem; 
    color: #ffffff;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    font-weight: 600;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
    margin-top: 1rem;
    position: relative;
    letter-spacing: 8px;
    margin-top: 0.5rem;
}

#enter-visualization:hover {
    color: #ffffff;
    text-shadow: 0 0 30px rgba(79, 172, 254, 0.8);
    transform: scale(1.05);
}

#enter-visualization::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: linear-gradient(45deg, #ffffff, #ffffff);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

#enter-visualization:hover::after {
    transform: scaleX(1);
}
        
        /* Simulation Container */
        #simulation-container { 
            display: none; 
            width: 100%; 
            height: 100vh; 
            position: relative; 
        }
        
        #simulation-canvas { 
            width: 100%; 
            height: 100%; 
            display: block; 
        }
        
        /* Zoom Controls */
        #zoom-controls {
            position: fixed;
            right: 10px;
            top: 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            z-index: 100;
        }
        
        .zoom-btn {
            width: 40px;
            height: 40px;
            background: rgba(10, 14, 42, 0.8);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 1px solid rgba(79, 172, 254, 0.3);
            box-shadow: 0 0 15px rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(10px);
            font-size: 1.2rem;
            font-weight: bold;
            color: #4facfe;
        }
        
        .zoom-btn:hover {
            background: rgba(20, 25, 60, 0.9);
            transform: scale(1.1);
            border-color: rgba(79, 172, 254, 0.6);
            box-shadow: 0 0 20px rgba(79, 172, 254, 0.4);
        }
        
        /* Minimalistic UI Icons */
        #ui-icons {
            position: fixed;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            display: flex;
            flex-direction: column;
            gap: 15px;
            z-index: 100;
        }
        
        .ui-icon {
            width: 40px;
            height: 40px;
            background: rgba(10, 14, 42, 0.8);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 1px solid rgba(79, 172, 254, 0.3);
            box-shadow: 0 0 15px rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(10px);
            position: relative;
        }
        
        .ui-icon:hover {
            background: rgba(20, 25, 60, 0.9);
            transform: scale(1.1);
            border-color: rgba(79, 172, 254, 0.6);
            box-shadow: 0 0 20px rgba(79, 172, 254, 0.4);
        }
        
        .ui-icon.active {
            background: rgba(30, 35, 70, 0.95);
            border-color: rgba(79, 172, 254, 0.8);
            box-shadow: 0 0 25px rgba(79, 172, 254, 0.6);
        }
        
        .ui-icon::after {
            content: attr(data-tooltip);
            position: absolute;
            right: 50px;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(10, 14, 42, 0.9);
            color: white;
            padding: 8px 12px;
            border-radius: 6px;
            font-size: 0.85rem;
            white-space: nowrap;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
            border: 1px solid rgba(79, 172, 254, 0.3);
        }
        
        .ui-icon:hover::after {
            opacity: 1;
        }
        
        /* Full Screen Button */
        #fullscreen-btn {
            position: fixed;
            top: 15px;
            right: 60px;
            width: 35px;
            height: 35px;
            background: rgba(10, 14, 42, 0.8);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 1px solid rgba(79, 172, 254, 0.3);
            z-index: 100;
        }
        
        #fullscreen-btn:hover {
            background: rgba(20, 25, 60, 0.9);
            transform: scale(1.1);
        }
        
        /* Enhanced Minimalistic Panels */
        .minimal-panel {
            position: fixed;
            right: 60px;
            top: 50%;
            transform: translateY(-50%);
            width: 340px;
            max-height: 80vh;
            background: linear-gradient(135deg, rgba(10, 14, 42, 0.98) 0%, rgba(5, 8, 25, 0.98) 100%);
            border-radius: 16px;
            padding: 22px;
            backdrop-filter: blur(25px);
            box-shadow: 0 0 50px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(79, 172, 254, 0.2);
            border: 1px solid rgba(79, 172, 254, 0.4);
            overflow-y: auto;
            z-index: 90;
            display: none;
            animation: panelSlideIn 0.4s ease-out;
        }
        
        @keyframes panelSlideIn {
            from { opacity: 0; transform: translateX(30px) translateY(-50%); }
            to { opacity: 1; transform: translateX(0) translateY(-50%); }
        }
        
        .panel-title {
            font-size: 1.4rem;
            margin-bottom: 18px;
            color: #4facfe;
            border-bottom: 1px solid rgba(79, 172, 254, 0.4);
            padding-bottom: 12px;
            font-weight: 700;
            text-shadow: 0 0 10px rgba(79, 172, 254, 0.5);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .panel-close {
            position: absolute;
            top: 18px;
            right: 18px;
            width: 28px;
            height: 28px;
            background: rgba(79, 172, 254, 0.1);
            border: 1px solid rgba(79, 172, 254, 0.3);
            border-radius: 50%;
            color: #a0a0c0;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .panel-close:hover {
            background: rgba(255, 107, 107, 0.2);
            border-color: rgba(255, 107, 107, 0.5);
            color: #ff6b6b;
            transform: rotate(90deg);
        }
        
        /* Asteroid List */
        .asteroid-list {
            max-height: 300px;
            overflow-y: auto;
            margin-bottom: 15px;
            border-radius: 10px;
            background: rgba(5, 8, 25, 0.5);
            padding: 5px;
        }
        
        .asteroid-item {
            padding: 14px;
            margin-bottom: 8px;
            background: linear-gradient(135deg, rgba(30, 35, 70, 0.7) 0%, rgba(20, 25, 60, 0.7) 100%);
            border-radius: 10px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 1px solid rgba(79, 172, 254, 0.2);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        }
        
        .asteroid-item:hover {
            background: linear-gradient(135deg, rgba(40, 45, 90, 0.9) 0%, rgba(30, 35, 80, 0.9) 100%);
            transform: translateX(-3px);
            border-color: rgba(79, 172, 254, 0.4);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
        }
        
        .asteroid-item.active {
            background: linear-gradient(135deg, rgba(50, 55, 100, 0.9) 0%, rgba(40, 45, 90, 0.9) 100%);
            border-color: rgba(79, 172, 254, 0.6);
            box-shadow: 0 0 15px rgba(79, 172, 254, 0.3);
        }
        
        .asteroid-name {
            font-weight: bold;
            font-size: 1.05rem;
            margin-bottom: 8px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .hazard-indicator {
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: bold;
        }
        
        .hazardous { background: rgba(255, 107, 107, 0.3); color: #ff6b6b; }
        .safe { background: rgba(76, 175, 80, 0.3); color: #4caf50; }
        
        .asteroid-details {
            font-size: 0.82rem;
            color: #a0a0c0;
            line-height: 1.4;
        }
        
        /* Controls */
        .control-group {
            margin-bottom: 18px;
            background: rgba(5, 8, 25, 0.5);
            padding: 15px;
            border-radius: 12px;
            border: 1px solid rgba(79, 172, 254, 0.1);
        }
        
        .control-label {
            display: block;
            margin-bottom: 10px;
            color: #a0a0c0;
            font-size: 0.95rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .slider-container {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .slider {
            flex: 1;
            height: 6px;
            background: linear-gradient(90deg, #1a2a6c, #4facfe);
            border-radius: 5px;
            outline: none;
            -webkit-appearance: none;
        }
        
        .slider::-webkit-slider-thumb {
            -webkit-appearance: none;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: linear-gradient(45deg, #4facfe, #00f2fe);
            cursor: pointer;
            box-shadow: 0 0 10px rgba(79, 172, 254, 0.8);
            border: 2px solid white;
            transition: all 0.2s ease;
        }
        
        .slider::-webkit-slider-thumb:hover {
            transform: scale(1.2);
            box-shadow: 0 0 15px rgba(79, 172, 254, 1);
        }
        
        .value-display {
            min-width: 80px;
            text-align: right;
            color: #4facfe;
            font-weight: 700;
            font-size: 0.95rem;
            text-shadow: 0 0 5px rgba(79, 172, 254, 0.5);
        }
        
        .simulate-btn {
            width: 100%;
            padding: 15px;
            background: linear-gradient(45deg, #ff6b6b, #ff8e53);
            border: none;
            border-radius: 12px;
            color: white;
            font-size: 1.05rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-top: 10px;
            box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
            position: relative;
            overflow: hidden;
        }
        
        .simulate-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(255, 107, 107, 0.6);
        }
        
        .simulate-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
            transition: left 0.5s;
        }
        
        .simulate-btn:hover::before {
            left: 100%;
        }
        
        /* Impact Results */
        .impact-result {
            margin-top: 20px;
            padding: 18px;
            border-radius: 12px;
            display: none;
            animation: resultSlideIn 0.4s ease-out;
            background: linear-gradient(135deg, rgba(10, 14, 42, 0.9) 0%, rgba(5, 8, 25, 0.9) 100%);
            border: 1px solid rgba(79, 172, 254, 0.3);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
        }
        
        @keyframes resultSlideIn {
            from { opacity: 0; transform: translateY(15px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .impact-title {
            font-weight: bold;
            margin-bottom: 12px;
            font-size: 1.15rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .impact-success { 
            border-left: 4px solid #ff6b6b;
        }
        
        .impact-failure { 
            border-left: 4px solid #4caf50;
        }
        
        .impact-details {
            font-size: 0.88rem;
            line-height: 1.5;
        }
        
        .impact-value {
            color: #00f2fe;
            font-weight: 600;
            text-shadow: 0 0 5px rgba(0, 242, 254, 0.5);
        }
        
        /* Enhanced Analysis Buttons */
        .analysis-buttons {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }
        
        .analysis-btn {
            flex: 1;
            padding: 14px 10px;
            background: linear-gradient(135deg, rgba(30, 35, 70, 0.9) 0%, rgba(20, 25, 60, 0.9) 100%);
            border: 1px solid rgba(79, 172, 254, 0.4);
            border-radius: 10px;
            color: #a0a0c0;
            font-size: 0.85rem;
            cursor: pointer;
            transition: all 0.3s ease;
            text-align: center;
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
            position: relative;
            overflow: hidden;
        }
        
        .analysis-btn:hover {
            background: linear-gradient(135deg, rgba(40, 45, 90, 0.95) 0%, rgba(30, 35, 80, 0.95) 100%);
            border-color: rgba(79, 172, 254, 0.7);
            color: #4facfe;
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
        }
        
        .analysis-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(79, 172, 254, 0.2), transparent);
            transition: left 0.5s;
        }
        
        .analysis-btn:hover::before {
            left: 100%;
        }
        
        .analysis-btn.detail-btn {
            background: linear-gradient(135deg, rgba(79, 172, 254, 0.3) 0%, rgba(0, 242, 254, 0.3) 100%);
            border-color: rgba(79, 172, 254, 0.5);
            color: #4facfe;
        }
        
        .analysis-btn.detail-btn:hover {
            background: linear-gradient(135deg, rgba(79, 172, 254, 0.5) 0%, rgba(0, 242, 254, 0.5) 100%);
            border-color: rgba(79, 172, 254, 0.8);
        }
        
        .analysis-btn.mitigation-btn {
            background: linear-gradient(135deg, rgba(255, 107, 107, 0.3) 0%, rgba(255, 142, 83, 0.3) 100%);
            border-color: rgba(255, 107, 107, 0.5);
            color: #ff6b6b;
        }
        
        .analysis-btn.mitigation-btn:hover {
            background: linear-gradient(135deg, rgba(255, 107, 107, 0.5) 0%, rgba(255, 142, 83, 0.5) 100%);
            border-color: rgba(255, 107, 107, 0.8);
        }
        
        /* Status Message */
        .status-message {
            position: absolute;
            bottom: 15px;
            left: 15px;
            background: rgba(0, 0, 0, 0.8);
            padding: 10px 18px;
            border-radius: 10px;
            font-size: 0.9rem;
            border-left: 3px solid #4facfe;
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
        }
        
        /* Scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
        }
        
        ::-webkit-scrollbar-track {
            background: rgba(79, 172, 254, 0.1);
            border-radius: 4px;
        }
        
        ::-webkit-scrollbar-thumb {
            background: linear-gradient(45deg, #4facfe, #00f2fe);
            border-radius: 4px;
        }

        /* Learning Panel Styles */
        #learning-panel {
            width: 380px;
            max-height: 85vh;
        }
        
        .learning-content {
            margin-top: 15px;
        }
        
        .learning-step {
            display: none;
            animation: fadeIn 0.5s ease;
        }
        
        .learning-step.active {
            display: block;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .learning-title {
            font-size: 1.2rem;
            color: #4facfe;
            margin-bottom: 10px;
            font-weight: 600;
        }
        
        .learning-text {
            font-size: 0.9rem;
            line-height: 1.5;
            margin-bottom: 15px;
            color: #a0a0c0;
        }
        
        .learning-highlight {
            background: rgba(79, 172, 254, 0.2);
            padding: 10px;
            border-radius: 8px;
            border-left: 3px solid #4facfe;
            margin: 10px 0;
            font-size: 0.85rem;
        }
        
        .learning-visual {
            width: 100%;
            height: 150px;
            background: rgba(20, 25, 60, 0.5);
            border-radius: 10px;
            margin: 15px 0;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            position: relative;
        }
        
        .learning-buttons {
            display: flex;
            justify-content: space-between;
            margin-top: 20px;
        }
        
        .learning-btn {
            padding: 8px 15px;
            background: rgba(30, 35, 70, 0.7);
            border: 1px solid rgba(79, 172, 254, 0.3);
            border-radius: 6px;
            color: #a0a0c0;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .learning-btn:hover {
            background: rgba(40, 45, 90, 0.9);
            border-color: rgba(79, 172, 254, 0.6);
            color: #4facfe;
        }
        
        .learning-btn.primary {
            background: rgba(79, 172, 254, 0.3);
            color: #4facfe;
        }
        
        .learning-btn.primary:hover {
            background: rgba(79, 172, 254, 0.5);
        }
        
        .learning-progress {
            display: flex;
            justify-content: center;
            margin-top: 15px;
        }
        
        .progress-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: rgba(79, 172, 254, 0.3);
            margin: 0 5px;
            transition: all 0.3s ease;
        }
        
        .progress-dot.active {
            background: #4facfe;
            transform: scale(1.2);
        }
        
        /* Interactive Learning Elements */
        .interactive-demo {
            width: 100%;
            height: 180px;
            background: rgba(10, 14, 42, 0.7);
            border-radius: 10px;
            margin: 15px 0;
            position: relative;
            overflow: hidden;
        }
        
        .demo-earth {
            position: absolute;
            width: 80px;
            height: 80px;
            background: radial-gradient(circle at 30% 30%, #1a5fb4, #0a3a6b);
            border-radius: 50%;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            box-shadow: 0 0 20px rgba(26, 95, 180, 0.5);
        }
        
        .demo-asteroid {
            position: absolute;
            width: 15px;
            height: 15px;
            background: radial-gradient(circle, #888, #555);
            border-radius: 50%;
            box-shadow: 0 0 10px rgba(255, 200, 0, 0.5);
            transition: all 0.5s ease;
        }
        
        .demo-trajectory {
            position: absolute;
            width: 100%;
            height: 100%;
            pointer-events: none;
        }
        
        .demo-controls {
            display: flex;
            justify-content: space-between;
            margin-top: 10px;
        }
        
        .demo-slider {
            width: 100%;
            margin: 5px 0;
        }
        
        .demo-value {
            font-size: 0.8rem;
            color: #4facfe;
            text-align: center;
            margin-top: 5px;
        }
        
        .demo-button {
            padding: 5px 10px;
            background: rgba(79, 172, 254, 0.3);
            border: 1px solid rgba(79, 172, 254, 0.5);
            border-radius: 4px;
            color: #4facfe;
            cursor: pointer;
            font-size: 0.8rem;
            transition: all 0.3s ease;
        }
        
        .demo-button:hover {
            background: rgba(79, 172, 254, 0.5);
        }
        
        .impact-zone {
            position: absolute;
            border-radius: 50%;
            border: 2px dashed rgba(255, 107, 107, 0.7);
            transform: translate(-50%, -50%);
            pointer-events: none;
        }
        
        .blast-wave {
            position: absolute;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 107, 107, 0.3), transparent);
            transform: translate(-50%, -50%);
            pointer-events: none;
            opacity: 0;
        }
        
        .velocity-indicator {
            position: absolute;
            height: 2px;
            background: linear-gradient(90deg, transparent, #4facfe);
            transform-origin: left center;
            pointer-events: none;
        }
        
        /* Quiz Elements */
        .quiz-question {
            margin: 15px 0;
            padding: 10px;
            background: rgba(20, 25, 60, 0.5);
            border-radius: 8px;
        }
        
        .quiz-options {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin: 10px 0;
        }
        
        .quiz-option {
            padding: 8px;
            background: rgba(30, 35, 70, 0.7);
            border-radius: 6px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 1px solid transparent;
        }
        
        .quiz-option:hover {
            background: rgba(40, 45, 90, 0.9);
            border-color: rgba(79, 172, 254, 0.3);
        }
        
        .quiz-option.correct {
            background: rgba(76, 175, 80, 0.3);
            border-color: rgba(76, 175, 80, 0.6);
        }
        
        .quiz-option.incorrect {
            background: rgba(255, 107, 107, 0.3);
            border-color: rgba(255, 107, 107, 0.6);
        }
        
        .quiz-feedback {
            margin-top: 10px;
            padding: 8px;
            border-radius: 6px;
            font-size: 0.85rem;
            display: none;
        }
        
        .quiz-feedback.correct {
            background: rgba(76, 175, 80, 0.2);
            border-left: 3px solid #4caf50;
            display: block;
        }
        
        .quiz-feedback.incorrect {
            background: rgba(255, 107, 107, 0.2);
            border-left: 3px solid #ff6b6b;
            display: block;
        }
        
        /* Challenge Elements */
        .challenge-container {
            margin: 15px 0;
            padding: 15px;
            background: rgba(20, 25, 60, 0.5);
            border-radius: 10px;
            border-left: 3px solid #ff8e53;
        }
        
        .challenge-title {
            color: #ff8e53;
            font-weight: 600;
            margin-bottom: 10px;
        }
        
        .challenge-objective {
            font-size: 0.9rem;
            margin-bottom: 15px;
        }
        
        .challenge-parameters {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
            margin-bottom: 15px;
        }
        
        .parameter-item {
            display: flex;
            flex-direction: column;
        }
        
        .parameter-label {
            font-size: 0.8rem;
            color: #a0a0c0;
            margin-bottom: 5px;
        }
        
        .parameter-value {
            font-size: 0.9rem;
            color: #4facfe;
            font-weight: 600;
        }
        
        .challenge-result {
            margin-top: 15px;
            padding: 10px;
            border-radius: 8px;
            display: none;
        }
        
        .challenge-result.success {
            background: rgba(76, 175, 80, 0.2);
            border-left: 3px solid #4caf50;
            display: block;
        }
        
        .challenge-result.failure {
            background: rgba(255, 107, 107, 0.2);
            border-left: 3px solid #ff6b6b;
            display: block;
        }