:root {
            --primary: #4361ee;
            --secondary: #3f37c9;
            --accent: #4895ef;
            --success: #4cc9f0;
            --danger: #f72585;
            --dark: #1e1e2c;
            --light: #f8f9fa;
            --glass: rgba(255, 255, 255, 0.1);
            --glass-border: rgba(255, 255, 255, 0.2);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background: #231F4D;
            color: var(--light);
            min-height: 100vh;
            padding: 0;
            background-attachment: fixed;
        }
        
        .header {
            max-width: 1200px;
            margin: 0 auto 20px;
            padding: 20px;
            border-radius: 20px;
            background: var(--glass);
            backdrop-filter: blur(10px);
            border: 1px solid var(--glass-border);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            display: flex;
            justify-content: space-between;
            align-items: center;
            animation: fadeIn 1s ease-out;
        }
		
		.message {
			max-width: 1200px;
            margin: 0 auto 40px;


		}
        
        .logo {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .logo-icon {
            font-size: 2.5rem;
            color: var(--accent);
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 5px 15px rgba(67, 97, 238, 0.4);
        }
        
        .logo-text h1 {
            font-weight: 700;
            margin-bottom: 5px;
            background: linear-gradient(to right, var(--accent), var(--success));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        
        .logo-text p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1rem;
        }
        
        .user-info {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .user-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: bold;
            color: white;
        }
        
        .user-details {
            text-align: right;
        }
        
        .user-details .username {
            font-weight: 600;
            font-size: 1.2rem;
        }
        
        .user-details .score {
            color: var(--accent);
            font-weight: 600;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 350px;
            gap: 30px;
        }
        
        .card {
            background: var(--glass);
            backdrop-filter: blur(10px);
            border: 1px solid var(--glass-border);
            border-radius: 20px;
            padding: 10px;
			margin:0;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            transition: all 0.4s ease;
            margin-bottom: 30px;
            overflow: hidden;
            position: relative;
        }
        
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.35);
        }
        
        .card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 1px solid var(--glass-border);
        }
        
        .card-title {
            font-size: 1.5rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .card-title i {
            color: var(--accent);
        }
        
        .challenge {
            padding: 20px;
            margin-bottom: 20px;
            border-radius: 15px;
            background: rgba(30, 30, 44, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.3s ease;
            animation: slideUp 0.5s ease-out;
        }
        
        .challenge:hover {
            background: rgba(67, 97, 238, 0.15);
            border-color: rgba(72, 149, 239, 0.3);
        }
        
        .challenge:nth-child(2) { animation-delay: 0.1s; }
        .challenge:nth-child(3) { animation-delay: 0.2s; }
        .challenge:nth-child(4) { animation-delay: 0.3s; }
        .challenge:nth-child(5) { animation-delay: 0.4s; }
        
        .challenge-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .challenge-title {
            font-size: 1.1rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .challenge-category {
            background: rgba(72, 149, 239, 0.2);
            color: var(--accent);
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
        }
        
        .challenge-points {
            background: linear-gradient(135deg, #ff9a00, #ff6a00);
            color: white;
			margin-top:20px;
            padding: 10px 15px;
            border-radius: 10px;
            font-weight: 700;
            box-shadow: 0 4px 10px rgba(255, 106, 0, 0.25);
        }
        
        .challenge-description {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 20px;
            line-height: 1.6;
        }
        
        .flag-form {
            display: flex;
            gap: 10px;
        }
        
        .flag-input {
            width: 85%;
            background: rgba(30, 30, 44, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            padding: 1px 20px;
            color: white;
            font-size: 1rem;
            transition: all 0.3s ease;
        }
        
        .flag-input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(72, 149, 239, 0.3);
        }
        
        .submit-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            border: none;
            border-radius: 12px;
            padding: 12px 25px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .submit-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(67, 97, 238, 0.4);
        }
        
        .solved-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: linear-gradient(135deg, var(--success), #2a9d8f);
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(76, 201, 240, 0.3);
        }
        
        .leaderboard-list {
            list-style: none;
			margin:0;
			padding:0;
        }

        .leaderboard-item {
            display: flex;
            align-items: center;
            padding: 15px;
            border-radius: 15px;
            margin-bottom: 15px;
            background: rgba(30, 30, 44, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.3s ease;
            animation: slideRight 0.5s ease-out;
        }
        
        .leaderboard-item:hover {
            background: rgba(67, 97, 238, 0.15);
            transform: translateX(15px);
        }
        
        .leaderboard-item:nth-child(1) { animation-delay: 0.1s; }
        .leaderboard-item:nth-child(2) { animation-delay: 0.2s; }
        .leaderboard-item:nth-child(3) { animation-delay: 0.3s; }
        .leaderboard-item:nth-child(4) { animation-delay: 0.4s; }
        .leaderboard-item:nth-child(5) { animation-delay: 0.5s; }
        
        .rank {
            width: 35px;
            height: 35px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin-right: 15px;
            flex-shrink: 0;
        }
        
        .rank-1 {
            background: linear-gradient(135deg, #FFD700, #FFA500);
            color: #333;
        }
        
        .rank-2 {
            background: linear-gradient(135deg, #C0C0C0, #A9A9A9);
            color: white;
        }
        
        .rank-3 {
            background: linear-gradient(135deg, #CD7F32, #A67B5B);
            color: white;
        }
        
        .rank-other {
            background: rgba(72, 149, 239, 0.2);
            color: var(--accent);
        }
        
        .user-info-leaderboard {
            flex: 1;
        }
        
        .user-info-leaderboard .username {
            font-weight: 600;
            margin-bottom: 3px;
        }
        
        .user-info-leaderboard .solved {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }
        
        .score-leaderboard {
            background: rgba(76, 201, 240, 0.2);
            color: var(--success);
            padding: 5px 15px;
            border-radius: 20px;
            font-weight: 700;
        }
        
        .user-card {
            text-align: center;
            padding: 30px 20px;
        }
        
        .user-avatar-large {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.5rem;
            font-weight: bold;
            color: white;
            margin: 0 auto 20px;
            box-shadow: 0 8px 20px rgba(67, 97, 238, 0.4);
        }
        
        .user-name {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 5px;
        }
        
        .user-email {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
        }
        
        .user-stats {
            display: flex;
            justify-content: space-around;
            margin-bottom: 25px;
        }
        
        .stat {
            text-align: center;
        }
        
        .stat-value {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 5px;
        }
        
        .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }
        
        .user-actions {
            display: flex;
            gap: 15px;
        }
        
        .user-btn {
            flex: 1;
            padding: 12px;
            border-radius: 12px;
            font-weight: 600;
            text-align: center;
            text-decoration: none;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: all 0.3s ease;
        }
        
        .btn-submissions {
            background: rgba(76, 201, 240, 0.2);
            color: var(--success);
            border: 1px solid rgba(76, 201, 240, 0.3);
        }
        
        .btn-submissions:hover {
            background: rgba(76, 201, 240, 0.3);
        }
        
        .btn-logout {
            background: rgba(247, 37, 133, 0.2);
            color: var(--danger);
            border: 1px solid rgba(247, 37, 133, 0.3);
        }
        
        .btn-logout:hover {
            background: rgba(247, 37, 133, 0.3);
        }
        
        .notification {
            position: fixed;
            top: 20px;
            right: 20px;
            padding: 15px 25px;
            border-radius: 12px;
            background: rgba(30, 30, 44, 0.95);
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            display: flex;
            align-items: center;
            gap: 15px;
            z-index: 1000;
            transform: translateX(120%);
            transition: transform 0.4s ease;
        }
        
        .notification.show {
            transform: translateX(0);
        }
        
        .notification.success {
            border-left: 4px solid var(--success);
        }
        
        .notification.error {
            border-left: 4px solid var(--danger);
        }
        
        .notification i {
            font-size: 1.5rem;
        }
        
        .notification.success i {
            color: var(--success);
        }
        
        .notification.error i {
            color: var(--danger);
        }
        
        .notification-content h4 {
            margin-bottom: 5px;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        @keyframes slideUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        @keyframes slideRight {
            from { opacity: 0; transform: translateX(30px); }
            to { opacity: 1; transform: translateX(0); }
        }
        
        @media (max-width: 992px) {
            .container {
                grid-template-columns: 1fr;
            }
            
            .header {
                flex-direction: column;
                text-align: center;
                gap: 20px;
            }
            
            .user-info {
                justify-content: center;
            }
            
            .user-details {
                text-align: center;
            }
        }

        .clickable-text {
            display: inline-block;
			width:98%;
            padding: 5px 18px;
            margin: 8px;
            background: #FFB300;
            border-radius: 6px;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 16px;
            border: 1px solid #D4AF37;
            color: #2D2A46;
        }
		
		.date-info {
            font-size: 1.2rem;
            color: #D4AF37;
            font-weight: 600;
			padding: 0 20px;
            margin-bottom: 10px;
        }
		.reflash {
			padding: 0 20px;
			
		}
        
		  .refresh-info {
            background: #FFB300;
            padding: 10px 20px;
            border-radius: 50px;
            display: inline-block;
            font-size: 0.9rem;
            margin-top: 0;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
        }
        
        .refresh-info i {
            color: #2D2A46;
            margin-right: 5px;
            animation: pulse 1.5s infinite;
        }
		
		
		.system-info {
            background: #403B6A;
			max-width: 1200px;
            margin: 0 auto 40px;
            padding: 20px;
            border-radius: 15px;
            margin-top: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
			border-radius: 20px;
            background: var(--glass);
            backdrop-filter: blur(10px);
            border: 1px solid var(--glass-border);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            display: flex;
        }
        
        .system-info h2 {
            color: #1a2a6c;
            margin-bottom: 20px;
            font-size: 1.8rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .info-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin-top: 25px;
        }
        
        .info-card {
            background: linear-gradient(135deg, #e3f2fd 0%, #f0f7ff 100%);
            padding: 25px;
            border-radius: 15px;
            border-left: 5px solid #3498db;
            transition: transform 0.3s ease;
        }
        
        .info-card:hover {
            transform: translateY(-5px);
        }
        
        .info-card h3 {
            color: #1a2a6c;
            margin-bottom: 15px;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .info-card p {
            line-height: 1.7;
            color: #34495e;
        }
        
		.tech-details {
			width:100%;
            padding: 20px;

            border-radius: 15px;
            background: rgba(30, 30, 44, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.3s ease;
            animation: slideUp 0.5s ease-out;
        }
        
        .tech-details h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .tech-details p {
            line-height: 1.7;
            margin-bottom: 10px;
            padding-left: 10px;
            border-left: 3px solid #3498db;
        }
		
		.audio {
			display: inline-block;
			width:100%;
            padding: 0px;
            margin: 0px;
            			
			}
		.vedio {
			margin: 50px auto;
	        max-width: 100px;
			background:#222;
			
			}
			.audio_vedio iframe {
             width: 100%;
             aspect-ratio: 16 / 9;
             object-fit: cover;
            }