:root {
            --dark-bg: #1E1E1E;
            --neon-green: #39FF14;
            --turquoise: #00E3E3;
            --purple: #FF00FF;
            --azure: #00FFFF;
            --pink: #FF00AA;
            --corner-radius: 12px;
            --glow-intensity: 0.7;
            .nav-controls {
                flex-direction: column;
                align-items: stretch;
                gap: 15px;
            }
            
            .nav-buttons {
                justify-content: center;
            }
            
            .nav-jump {
                justify-content: center;
            }
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', 'SF Pro', sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #000000 0%, #1E1E1E 50%, #2A2A2A 100%);
            color: white;
            min-height: 100vh;
            overflow-x: hidden;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
            background: rgba(30, 30, 30, 0.9);
            border-radius: var(--corner-radius);
            backdrop-filter: blur(10px);
            box-shadow: 0 0 30px rgba(0, 255, 255, 0.2);
            min-height: 100vh;
        }
        
        .header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 1px solid rgba(0, 227, 227, 0.3);
        }
        
        .app-title {
            font-size: 2rem;
            font-weight: 600;
            color: var(--neon-green);
            text-shadow: 0 0 20px rgba(57, 255, 20, var(--glow-intensity));
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .title-icon {
            font-size: 1.5rem;
            color: var(--turquoise);
            text-shadow: 0 0 15px rgba(0, 227, 227, var(--glow-intensity));
        }
        
        .controls {
            display: flex;
            gap: 20px;
            margin-bottom: 30px;
            align-items: center;
            flex-wrap: wrap;
            justify-content: center;
        }
        
        .search-container {
            position: relative;
            flex: 1;
            max-width: 400px;
        }
        
        .search-box {
            width: 100%;
            padding: 12px 20px;
            background: rgba(0, 0, 0, 0.7);
            border: 1px solid var(--azure);
            border-radius: var(--corner-radius);
            color: white;
            font-size: 16px;
            outline: none;
            transition: all 0.3s ease;
            box-shadow: 0 0 15px rgba(0, 255, 255, 0.2);
        }
        
        .search-box:focus {
            border-color: var(--neon-green);
            box-shadow: 0 0 20px rgba(57, 255, 20, 0.5);
        }
        
        .search-box::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        
        .search-icon {
            position: absolute;
            right: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--turquoise);
            font-size: 1.2rem;
            text-shadow: 0 0 10px rgba(0, 227, 227, var(--glow-intensity));
        }
        
        .mode-toggle {
            display: flex;
            background: rgba(0, 0, 0, 0.7);
            border: 1px solid var(--azure);
            border-radius: var(--corner-radius);
            overflow: hidden;
            box-shadow: 0 0 15px rgba(0, 255, 255, 0.2);
        }
        
        .mode-btn {
            padding: 12px 25px;
            background: transparent;
            border: none;
            color: white;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .mode-btn.active {
            background: rgba(57, 255, 20, 0.2);
            color: var(--neon-green);
            text-shadow: 0 0 10px rgba(57, 255, 20, var(--glow-intensity));
        }
        
        .mode-btn:hover {
            background: rgba(0, 227, 227, 0.1);
        }
        
        .mode-btn::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
            transform: translateX(-100%);
            transition: transform 0.3s ease;
        }
        
        .mode-btn:hover::after {
            transform: translateX(100%);
        }
        
        .flashcard-container {
            display: none;
            flex-direction: column;
            align-items: center;
            margin-bottom: 30px;
        }
        
        .flashcard {
            width: 450px;
            height: 300px;
            perspective: 1000px;
            cursor: pointer;
            margin-bottom: 20px;
        }
        
        .flashcard-inner {
            position: relative;
            width: 100%;
            height: 100%;
            text-align: center;
            transition: transform 0.6s;
            transform-style: preserve-3d;
        }
        
        .flashcard.flipped .flashcard-inner {
            transform: rotateY(180deg);
        }
        
        .flashcard-front, .flashcard-back {
            position: absolute;
            width: 100%;
            height: 100%;
            backface-visibility: hidden;
            border-radius: var(--corner-radius);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            padding: 30px;
            border: 1px solid var(--azure);
            box-shadow: 0 0 30px rgba(0, 255, 255, 0.3);
        }
        
        .flashcard-front {
            background: linear-gradient(135deg, rgba(0, 0, 0, 0.9), rgba(30, 30, 30, 0.9));
            backdrop-filter: blur(10px);
        }
        
        .flashcard-back {
            background: linear-gradient(135deg, rgba(30, 30, 30, 0.9), rgba(0, 0, 0, 0.9));
            backdrop-filter: blur(10px);
            transform: rotateY(180deg);
        }
        
        .flashcard-word {
            font-size: 3rem;
            font-weight: 600;
            color: var(--neon-green);
            text-shadow: 0 0 20px rgba(57, 255, 20, var(--glow-intensity));
            margin-bottom: 15px;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
        }
        
        .flashcard-word:hover {
            color: var(--azure);
            text-shadow: 0 0 25px rgba(0, 255, 255, 0.8);
            transform: scale(1.05);
        }
        
        .flashcard-pos {
            font-size: 1.1rem;
            color: var(--turquoise);
            text-shadow: 0 0 10px rgba(0, 227, 227, var(--glow-intensity));
            opacity: 0.9;
            margin-bottom: 20px;
        }

        .flashcard-phonetic {
            font-size: 1.2rem;
            color: var(--azure);
            margin-bottom: 15px;
            font-weight: normal;
        }

        .flashcard-translation {
            font-size: 1.8rem;
            font-weight: 500;
            color: var(--purple);
            text-shadow: 0 0 15px rgba(255, 0, 255, var(--glow-intensity));
            margin-bottom: 20px;
        }
        
        .flashcard-example {
            font-size: 1.1rem;
            color: white;
            opacity: 0.8;
            font-style: italic;
            text-align: center;
            line-height: 1.5;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            padding: 10px;
            border-radius: 8px;
        }
        
        .flashcard-example:hover {
            color: var(--pink);
            text-shadow: 0 0 15px rgba(255, 0, 170, 0.6);
            background: rgba(255, 0, 170, 0.1);
            transform: scale(1.02);
        }
        
        .flashcard-controls {
            display: none;
            gap: 20px;
            margin-top: 20px;
        }
        
        .flashcard-btn {
            padding: 12px 30px;
            background: rgba(0, 0, 0, 0.7);
            border: 1px solid var(--azure);
            border-radius: var(--corner-radius);
            color: white;
            font-size: 16px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            box-shadow: 0 0 15px rgba(0, 255, 255, 0.2);
        }
        
        .flashcard-btn:hover {
            background: rgba(57, 255, 20, 0.2);
            color: var(--neon-green);
            text-shadow: 0 0 10px rgba(57, 255, 20, var(--glow-intensity));
            transform: translateY(-2px);
            box-shadow: 0 0 20px rgba(57, 255, 20, 0.5);
        }
        
        .word-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }
        
        .word-card {
            background: rgba(0, 0, 0, 0.7);
            border: 1px solid var(--azure);
            border-radius: var(--corner-radius);
            padding: 25px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(10px);
            box-shadow: 0 0 20px rgba(0, 255, 255, 0.2);
        }
        
        .word-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 0 30px rgba(57, 255, 20, 0.4);
            border-color: var(--neon-green);
        }
        
        .word-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--neon-green), var(--turquoise), var(--purple));
            opacity: 0.7;
        }
        
        .word-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .word-title {
            font-size: 1.8rem;
            font-weight: 600;
            color: var(--neon-green);
            text-shadow: 0 0 15px rgba(57, 255, 20, var(--glow-intensity));
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .word-title:hover {
            color: var(--azure);
            text-shadow: 0 0 25px rgba(0, 255, 255, 0.8);
            transform: scale(1.05);
        }
        
        .word-rank {
            background: rgba(0, 227, 227, 0.2);
            color: var(--turquoise);
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid var(--turquoise);
            text-shadow: 0 0 10px rgba(0, 227, 227, var(--glow-intensity));
        }

        .flashcard-rank {
            position: absolute;
            top: 10px;
            right: 10px;
            font-size: 0.9rem;
            color: var(--turquoise);
            background: rgba(0, 227, 227, 0.2);
            padding: 3px 10px;
            border-radius: 15px;
            border: 1px solid var(--turquoise);
            text-shadow: 0 0 10px rgba(0, 227, 227, var(--glow-intensity));
        }

        .word-pos {
            color: var(--purple);
            font-size: 1.1rem;
            margin-bottom: 10px;
            font-style: italic;
            text-shadow: 0 0 10px rgba(255, 0, 255, var(--glow-intensity));
        }
        
        .word-translation {
            font-size: 1.2rem;
            color: white;
            margin-bottom: 15px;
            font-weight: 500;
            opacity: 0.9;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .word-translation:hover {
            text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
            box-shadow: 0 0 15px rgba(0, 255, 255, 0.2);
            border-radius: 4px;
            padding: 2px 6px;
        }
        
        .word-translation.audio-playing {
            background: rgba(0, 255, 255, 0.1);
            border-radius: 4px;
            padding: 2px 6px;
        }
        
        .word-example {
            background: rgba(0, 0, 0, 0.5);
            padding: 15px;
            border-radius: 8px;
            font-style: italic;
            color: rgba(255, 255, 255, 0.8);
            border-left: 3px solid var(--turquoise);
            box-shadow: 0 0 10px rgba(0, 227, 227, 0.2);
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .word-example:hover {
            color: var(--pink);
            text-shadow: 0 0 15px rgba(255, 0, 170, 0.6);
            background: rgba(255, 0, 170, 0.1);
            border-left-color: var(--pink);
            transform: scale(1.02);
        }
		
		.word-example-en {
            background: rgba(0, 0, 0, 0.5);
            padding: 15px;
            border-radius: 8px;
            font-style: italic;
            color: rgba(255, 255, 255, 0.8);
            border-left: 3px solid var(--purple);
            box-shadow: 0 0 10px rgba(255, 0, 255, 0.2);
			margin-top: 10px;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .word-example-en:hover {
            color: var(--pink);
            text-shadow: 0 0 15px rgba(255, 0, 170, 0.6);
            background: rgba(255, 0, 170, 0.1);
            border-left-color: var(--pink);
            transform: scale(1.02);
        }
		
		.word-phonetic{
			color: var(--azure);
			font-size: 1rem;
			margin-bottom: 8px;
			text-shadow: 0 0 10px rgba(0, 255, 255, var(--glow-intensity));
		}
		
        .word-stats {
            display: flex;
            justify-content: space-between;
            margin-top: 15px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }
        
        .stat-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .stat-icon {
            color: var(--azure);
            text-shadow: 0 0 10px rgba(0, 255, 255, var(--glow-intensity));
        }
        
        .no-results {
            text-align: center;
            padding: 60px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.2rem;
            grid-column: 1 / -1;
        }
        
        .progress-indicator {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: rgba(0, 255, 255, 0.2);
            z-index: 1000;
        }
        
        .progress-bar {
            height: 100%;
            background: linear-gradient(90deg, var(--neon-green), var(--turquoise));
            width: 0%;
            transition: width 0.3s ease;
            box-shadow: 0 0 10px rgba(57, 255, 20, var(--glow-intensity));
        }
        
        /* Navigation Panel Styles */
        .navigation-panel {
            display: none;
            background: rgba(0, 0, 0, 0.9);
            border-radius: var(--corner-radius);
            padding: 15px 25px;
            margin-top: 40px;
            position: sticky;
            bottom: 20px;
            z-index: 100;
            backdrop-filter: blur(10px);
            box-shadow: 0 0 30px rgba(0, 0, 0, 0.5),
                        inset 0 0 20px rgba(57, 255, 20, 0.1);
            border: 1px solid rgba(0, 227, 227, 0.3);
        }
        
        .nav-info {
            color: var(--turquoise);
            font-size: 0.9rem;
            text-align: center;
            margin-bottom: 12px;
            text-shadow: 0 0 10px rgba(0, 227, 227, 0.3);
        }
        
        .nav-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 15px;
        }
        
        .nav-btn {
            width: 40px;
            height: 40px;
            padding: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 0, 0, 0.5);
            border: 1px solid var(--azure);
            border-radius: 50%;
            color: var(--azure);
            font-size: 18px;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .nav-btn:hover:not(:disabled) {
            background: rgba(57, 255, 20, 0.15);
            color: var(--neon-green);
            transform: scale(1.1);
            box-shadow: 0 0 15px rgba(57, 255, 20, 0.3);
        }
        
        .nav-btn:disabled {
            opacity: 0.3;
            cursor: not-allowed;
            transform: none;
        }
        
        .nav-jump {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 0, 0, 0.3);
            border-radius: 20px;
            padding: 5px;
            border: 1px solid rgba(0, 227, 227, 0.2);
        }
        
        .nav-jump-input {
            width: 60px;
            padding: 8px 12px;
            background: rgba(0, 0, 0, 0.5);
            border: none;
            border-radius: 15px;
            color: var(--neon-green);
            font-size: 14px;
            text-align: center;
            outline: none;
            transition: all 0.3s ease;
            -moz-appearance: textfield;
        }
        
        .nav-jump-input::-webkit-inner-spin-button,
        .nav-jump-input::-webkit-outer-spin-button {
            -webkit-appearance: none;
            margin: 0;
        }
        
        .nav-jump-input:focus {
            background: rgba(57, 255, 20, 0.1);
            box-shadow: 0 0 15px rgba(57, 255, 20, 0.2);
        }
        
        .nav-jump-input::placeholder {
            color: rgba(255, 255, 255, 0.3);
        }
        
        .nav-jump-btn {
            padding: 8px 16px;
            background: rgba(0, 227, 227, 0.1);
            border: 1px solid var(--azure);
            border-radius: 15px;
            color: var(--azure);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            white-space: nowrap;
        }
        
        .nav-jump-btn:hover {
            background: rgba(57, 255, 20, 0.15);
            color: var(--neon-green);
            border-color: var(--neon-green);
            transform: translateY(-1px);
            box-shadow: 0 0 15px rgba(57, 255, 20, 0.3);
        }
        
        /* Remove old nav styles */
        .nav-controls, .nav-buttons, .nav-jump-label {
            display: none;
        }
        
        /* Audio Animation Styles */
        .audio-playing {
            animation: audioWave 2s infinite;
        }
        
        .audio-ripple {
            position: relative;
            overflow: visible !important;
        }
        
        .audio-ripple::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 0;
            height: 0;
            border: 2px solid var(--azure);
            border-radius: 50%;
            opacity: 0;
            animation: audioRipple 1.5s infinite;
            z-index: -1;
        }
        
        .audio-ripple::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 0;
            height: 0;
            border: 2px solid var(--neon-green);
            border-radius: 50%;
            opacity: 0;
            animation: audioRipple 1.5s infinite 0.5s;
            z-index: -1;
        }
        
        .audio-glow {
            box-shadow: 0 0 30px rgba(57, 255, 20, 0.8), 0 0 60px rgba(0, 255, 255, 0.4) !important;
            border-color: var(--neon-green) !important;
        }
        
        @keyframes audioWave {
            0%, 100% { 
                text-shadow: 0 0 20px var(--azure);
                transform: scale(1);
            }
            25% { 
                text-shadow: 0 0 30px var(--neon-green);
                transform: scale(1.02);
            }
            50% { 
                text-shadow: 0 0 40px var(--purple);
                transform: scale(1.05);
            }
            75% { 
                text-shadow: 0 0 30px var(--pink);
                transform: scale(1.02);
            }
        }
        
        @keyframes audioRipple {
            0% {
                width: 0;
                height: 0;
                opacity: 1;
            }
            100% {
                width: 200px;
                height: 200px;
                opacity: 0;
            }
        }
        
        @media (max-width: 768px) {
            .container {
                padding: 15px;
            }
            
            .controls {
                flex-direction: column;
                align-items: stretch;
            }
            
            .search-container {
                max-width: none;
            }
            
            .word-grid {
                grid-template-columns: 1fr;
            }
            
            .flashcard {
                width: 320px;
                height: 250px;
            }
            
            .flashcard-word {
                font-size: 2.5rem;
            }
            
            .app-title {
                font-size: 1.5rem;
            }
        }
        
        @media (max-width: 480px) {
            .flashcard {
                width: 280px;
                height: 220px;
            }
            
            .flashcard-word {
                font-size: 2rem;
            }
            
            .word-card {
                padding: 20px;
            }
            
            .app-title {
                font-size: 1.2rem;
            }
        }
        
        /* Additional AI/Futuristic animations */
        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.5; }
        }
        
        @keyframes glow {
            0%, 100% { box-shadow: 0 0 20px rgba(0, 255, 255, 0.2); }
            50% { box-shadow: 0 0 30px rgba(57, 255, 20, 0.4); }
        }
        
        .word-card:hover {
            animation: glow 2s infinite;
        }
        
        .search-box:focus {
            animation: pulse 2s infinite;
        }

        .nav-jump-panel {
            margin-top: 20px;
            padding: 10px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            display: none;
        }

        .standard-nav {
    position: relative;
    bottom: auto;
    margin: 20px 0;
    box-shadow: none;
}