* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            min-height: 100vh;
            background: linear-gradient(135deg, #1a2a6c, #2c3e50);
            color: #fff;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .container {
            width: 100%;
            max-width: 800px;
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        header {
            background: rgba(0, 0, 0, 0.2);
            padding: 30px;
            text-align: center;
            position: relative;
        }

        h1 {
            font-size: 2.8rem;
            font-weight: 700;
            margin-bottom: 10px;
            background: linear-gradient(90deg, #00c6ff, #0072ff);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .subtitle {
            color: #a0aec0;
            font-size: 1.1rem;
            max-width: 500px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .main-content {
            padding: 30px;
        }

        .input-container {
            margin-bottom: 25px;
            position: relative;
        }

        textarea {
            width: 100%;
            min-height: 200px;
            background: rgba(0, 10, 30, 0.3);
            border: 2px solid rgba(255, 255, 255, 0.08);
            border-radius: 12px;
            padding: 20px;
            font-size: 1.1rem;
            color: #fff;
            resize: vertical;
            transition: all 0.3s ease;
        }

        textarea:focus {
            outline: none;
            border-color: #00c6ff;
            box-shadow: 0 0 0 3px rgba(0, 198, 255, 0.2);
        }

        textarea::placeholder {
            color: #718096;
        }

        .char-count {
            position: absolute;
            bottom: 15px;
            right: 20px;
            color: #a0aec0;
            font-size: 0.9rem;
            background: rgba(0, 0, 0, 0.4);
            padding: 3px 8px;
            border-radius: 10px;
        }

        .controls {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 20px;
            align-items: center;
            margin-bottom: 25px;
        }

        .voice-controls {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        label {
            font-size: 0.95rem;
            color: #a0aec0;
            font-weight: 500;
        }

        select {
            background: rgba(0, 10, 30, 0.3);
            border: 2px solid rgba(255, 255, 255, 0.08);
            border-radius: 10px;
            padding: 12px 15px;
            color: #fff;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            width: 100%;
        }

        select:focus {
            outline: none;
            border-color: #00c6ff;
        }

        .action-buttons {
            display: flex;
            gap: 15px;
        }

        .btn {
            display: flex;
            justify-content: center;
            align-items: center;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            border: none;
            font-size: 1.3rem;
            cursor: pointer;
            transition: all 0.3s ease;
            color: white;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }

        .btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        .btn:hover:not(:disabled) {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
        }

        .btn-play {
            background: linear-gradient(135deg, #00c6ff, #0072ff);
        }

        .btn-stop {
            background: linear-gradient(135deg, #ff416c, #ff4b2b);
        }

        .btn-pause {
            background: linear-gradient(135deg, #f9d423, #ff4e50);
        }

        .progress-container {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 8px;
            height: 8px;
            overflow: hidden;
            margin-bottom: 15px;
        }

        .progress-bar {
            height: 100%;
            background: linear-gradient(90deg, #00c6ff, #0072ff);
            width: 0;
            transition: width 0.1s linear;
        }

        .status {
            display: flex;
            justify-content: space-between;
            font-size: 0.95rem;
            color: #a0aec0;
        }

        footer {
            text-align: center;
            padding: 20px;
            background: rgba(0, 0, 0, 0.2);
            color: #718096;
            font-size: 0.9rem;
        }

        .wave-animation {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 40px;
            margin: 15px 0;
        }

        .wave {
            width: 5px;
            height: 30px;
            background: #00c6ff;
            margin: 0 3px;
            border-radius: 10px;
            animation: wave 1s infinite ease-in-out;
        }

        .wave:nth-child(2) {
            animation-delay: 0.1s;
        }

        .wave:nth-child(3) {
            animation-delay: 0.2s;
        }

        .wave:nth-child(4) {
            animation-delay: 0.3s;
        }

        .wave:nth-child(5) {
            animation-delay: 0.4s;
        }

        @keyframes wave {
            0%, 100% {
                transform: scaleY(0.5);
            }
            50% {
                transform: scaleY(1.5);
            }
        }

        .hidden {
            display: none;
        }

        @media (max-width: 768px) {
            .controls {
                grid-template-columns: 1fr;
            }
            
            .action-buttons {
                justify-content: center;
            }
            
            h1 {
                font-size: 2.2rem;
            }
            
            textarea {
                min-height: 150px;
            }
        }