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

body {
    background: #000;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: #fff;
}

#visualizer {
    display: block;
    width: 100vw;
    height: 100vh;
}

#controls {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 12px 20px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 10;
    transition: opacity 0.3s;
}

#controls:hover {
    opacity: 1 !important;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.control-group label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.7;
    white-space: nowrap;
}

.button-group {
    display: flex;
    gap: 4px;
}

.source-btn {
    padding: 6px 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.source-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.4);
}

.source-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.source-btn.active {
    background: rgba(80, 160, 255, 0.3);
    border-color: rgba(80, 160, 255, 0.6);
}

#viz-select {
    padding: 6px 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    font-size: 13px;
    cursor: pointer;
    outline: none;
}

#viz-select option {
    background: #1a1a1a;
    color: #fff;
}

#btn-fullscreen {
    padding: 6px 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s;
    line-height: 1;
}

#btn-fullscreen:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.4);
}

#status-message {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 16px;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 13px;
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 10;
    pointer-events: none;
}

#status-message.visible {
    opacity: 1;
}