* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0c0c0c 0%, #1a1a2e 50%, #16213e 100%);
    color: #ffffff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    padding: 20px;
    padding-bottom: 40px;
    text-align: center;
}

.title {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: 10px;
    background: linear-gradient(45deg, #00f5ff, #ff00ff, #ffff00);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: glow 3s ease-in-out infinite alternate;
}

@keyframes glow {
    from { filter: drop-shadow(0 0 10px rgba(0, 245, 255, 0.5)); }
    to { filter: drop-shadow(0 0 20px rgba(255, 0, 255, 0.8)); }
}

.subtitle {
    font-size: 1rem;
    color: #a0a0a0;
    margin-bottom: 30px;
}

.visualizer-container {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 20px;
    padding: 20px;
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

#visualizer {
    width: 100%;
    height: 400px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.5);
}

.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
}

.file-input-wrapper {
    position: relative;
    overflow: hidden;
    display: inline-block;
}

.file-input-wrapper input[type=file] {
    position: absolute;
    left: -9999px;
}

.file-input-label {
    background: linear-gradient(45deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 12px 24px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
    font-weight: 500;
    border: none;
    font-size: 14px;
}

.file-input-label:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.control-btn {
    background: linear-gradient(45deg, #f093fb 0%, #f5576c 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    min-width: 100px;
}

.control-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(245, 87, 108, 0.4);
}

.control-btn:disabled {
    background: #555;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.volume-control {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.1);
    padding: 10px 20px;
    border-radius: 25px;
}

.volume-slider {
    width: 100px;
    height: 5px;
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.3);
    outline: none;
    -webkit-appearance: none;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: #00f5ff;
    cursor: pointer;
}

.volume-slider::-moz-range-thumb {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: #00f5ff;
    cursor: pointer;
    border: none;
}

.track-info {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 15px;
    margin-top: 20px;
    margin-bottom: 30px;
    backdrop-filter: blur(5px);
}

.track-name {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 5px;
}

.track-time {
    color: #a0a0a0;
    font-size: 0.9rem;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    margin: 10px 0;
    cursor: pointer;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #00f5ff, #ff00ff);
    border-radius: 2px;
    width: 0%;
    transition: width 0.1s ease;
}

@media (max-width: 768px) {
    .title {
        font-size: 2rem;
    }
    
    .controls {
        flex-direction: column;
        gap: 15px;
    }
    
    #visualizer {
        height: 300px;
    }
}