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

body {
    background-color: #000;
    color: #fff;
    font-family: 'Courier New', monospace;
    overflow: hidden;
}

.app {
    position: relative;
    width: 100vw;
    height: 100vh;
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
    background-color: #000;
}

.controls {
    position: absolute;
    bottom: 24px;
    left: 24px;
    right: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    background: rgba(0,0,0,0.7);
    padding: 12px 20px;
    border-radius: 40px;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255,255,255,0.15);
    z-index: 10;
}

.play-btn {
    background: transparent;
    border: 2px solid rgba(255,255,255,0.5);
    color: white;
    font-size: 24px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.play-btn:hover {
    border-color: white;
    background: rgba(255,255,255,0.1);
}

.noise-selector {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.noise-option {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.noise-option:hover {
    opacity: 1;
}

.noise-option.white { color: rgba(255,255,255,0.9); }
.noise-option.pink { color: rgba(255,110,199,0.9); }
.noise-option.brown { color: rgba(160,82,45,0.9); }
.noise-option.blue { color: rgba(77,166,255,0.9); }

.noise-option input {
    margin-right: 4px;
    accent-color: currentColor;
}

.volume-control {
    flex: 1;
    min-width: 150px;
}

.volume-control input {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: rgba(255,255,255,0.2);
    -webkit-appearance: none;
}

.volume-control input::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: white;
    cursor: pointer;
}

.mode-btn {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.4);
    color: white;
    font-size: 14px;
    padding: 8px 18px;
    border-radius: 30px;
    cursor: pointer;
    letter-spacing: 0.5px;
    transition: all 0.2s;
}

.mode-btn:hover {
    border-color: white;
    background: rgba(255,255,255,0.1);
}

.info {
    position: absolute;
    top: 24px;
    right: 16px;
    text-align: right;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
    color: rgba(255,255,255,0.8);
    z-index: 10;
    pointer-events: none;
    text-shadow: 0 0 10px rgba(0,0,0,0.8);
}