:root {
    --karen-green: #39FF14;
    --karen-bg: #0a1a0a;
    --karen-border: #2a2a2a;
    --karen-glow: rgba(57, 255, 20, 0.2);
}

body {
    margin: 0;
    padding: 0;
    background-color: #111;
    color: var(--karen-green);
    font-family: 'Courier New', Courier, monospace;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
}

.karen-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.screen-border {
    background-color: var(--karen-border);
    padding: 20px;
    border-radius: 40px;
    box-shadow: 0 0 50px rgba(0,0,0,0.5), inset 0 0 10px rgba(255,255,255,0.1);
    border: 4px solid #333;
}

.screen {
    position: relative;
    width: 600px;
    height: 400px;
    background-color: var(--karen-bg);
    border-radius: 30px;
    overflow: hidden;
    box-shadow: inset 0 0 30px rgba(0,0,0,1);
    border: 10px solid #1a1a1a;
}

canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* CRT Scanlines effect */
.scanlines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        rgba(18, 16, 16, 0) 50%,
        rgba(0, 0, 0, 0.2) 50%
    );
    background-size: 100% 4px;
    pointer-events: none;
    z-index: 2;
}

/* Vignette/Glow effect */
.glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    box-shadow: inset 0 0 100px rgba(0,0,0,0.6);
    pointer-events: none;
    z-index: 3;
}

.controls {
    text-align: center;
}

button {
    background: transparent;
    border: 2px solid var(--karen-green);
    color: var(--karen-green);
    padding: 10px 20px;
    font-family: inherit;
    font-size: 1.2rem;
    cursor: pointer;
    border-radius: 5px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 2px;
}

button:hover {
    background: var(--karen-green);
    color: #000;
    box-shadow: 0 0 20px var(--karen-green);
}

button:active {
    transform: scale(0.95);
}