body {
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #1a0033 0%, #000 100%);
    font-family: 'Segoe UI', Arial, sans-serif;
    color: #f5f6fa;
    min-height: 100vh;
    overflow: hidden;
}

#visualizer {
    display: block;
    width: 100vw;
    height: 100vh;
    background: radial-gradient(circle, #2d085e 60%, #000 100%);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    border-radius: 24px;
    border: 2px solid rgba(255,255,255,0.08);
    transition: box-shadow 0.3s;
    margin: 0 auto;
    outline: none;
}

#visualizer:focus {
    box-shadow: 0 0 0 4px #ee5a24;
}

.controls {
    position: absolute;
    top: 32px;
    left: 32px;
    z-index: 10;
    background: rgba(20, 20, 40, 0.85);
    padding: 28px 32px;
    border-radius: 18px;
    box-shadow: 0 4px 24px 0 rgba(31, 38, 135, 0.18);
    backdrop-filter: blur(16px);
    border: 1.5px solid rgba(255,255,255,0.10);
}

.controls.minimized {
    height: 40px;
    min-width: 60px;
    max-width: 60px;
    overflow: hidden;
    padding: 8px 12px 8px 12px;
    border-radius: 50px;
    background: rgba(20, 20, 40, 0.85);
    box-shadow: 0 2px 8px rgba(31, 38, 135, 0.10);
    transition: all 0.3s cubic-bezier(.25,.8,.25,1);
}

.controls h2 {
    margin: 0 0 18px 0;
    color: #fff;
    font-size: 22px;
    letter-spacing: 1px;
    font-weight: 600;
}

.control-group {
    margin: 16px 0;
}

.control-group label {
    display: block;
    margin-bottom: 7px;
    font-size: 15px;
    color: #bdbdbd;
    font-weight: 500;
}

input[type="file"] {
    margin-bottom: 12px;
    color: #fff;
    background: #23233b;
    border: 1px solid #444;
    border-radius: 6px;
    padding: 7px 10px;
    font-size: 15px;
}

input[type="range"] {
    width: 200px;
    accent-color: #ee5a24;
    background: #23233b;
    border-radius: 5px;
    height: 4px;
    margin: 0 10px 0 0;
}

button {
    background: linear-gradient(45deg, #ff6b6b, #ee5a24);
    border: none;
    color: white;
    padding: 10px 24px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 15px;
    margin: 5px 8px 5px 0;
    font-weight: 500;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(255, 107, 107, 0.10);
    transition: all 0.3s cubic-bezier(.25,.8,.25,1);
}

button:hover {
    background: linear-gradient(45deg, #ee5a24, #ff6b6b);
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 5px 18px rgba(255, 107, 107, 0.18);
}

button:disabled {
    background: #555;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    opacity: 0.7;
}

select {
    background: #23233b;
    color: #fff;
    border: 1px solid #555;
    padding: 8px 12px;
    border-radius: 7px;
    font-size: 15px;
    font-weight: 500;
    margin-top: 2px;
}

.status {
    position: absolute;
    bottom: 28px;
    left: 32px;
    background: rgba(20, 20, 40, 0.85);
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 15px;
    color: #bdbdbd;
    box-shadow: 0 2px 8px rgba(31, 38, 135, 0.10);
    border: 1.5px solid rgba(255,255,255,0.08);
}

.instructions {
    position: absolute;
    top: 80%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #faf7f7;
    z-index: 5;
    background: rgba(20, 20, 40, 0.85);
    padding: 24px 32px;
    border-radius: 14px;
    box-shadow: 0 2px 8px rgba(31, 38, 135, 0.10);
    border: 1.5px solid rgba(255,255,255,0.08);
}

.instructions h3 {
    margin-bottom: 12px;
    color: #fff;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

#currentTime, #duration {
    font-size: 14px;
    color: #ee5a24;
    font-weight: 600;
    margin: 0 2px;
}

#minimizeBtn {
    position: absolute;
    top: 8px;
    right: 8px;
    z-index: 20;
    background: #23233b;
    color: #fff;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    font-size: 20px;
    border: none;
    box-shadow: 0 2px 8px rgba(31, 38, 135, 0.10);
    transition: background 0.2s;
}

#minimizeBtn:hover {
    background: #ee5a24;
    color: #fff;
}

.controls.minimized h2,
.controls.minimized .control-group,
.controls.minimized select,
.controls.minimized label,
.controls.minimized input,
.controls.minimized button:not(#minimizeBtn) {
    display: none !important;
}