body {
    background-color: #020502;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    font-family: 'Courier New', monospace;
    overflow: hidden;
}

.game-container {
    background: #000;
    border: 2px solid #00ff41;
    border-radius: 30px;
    padding: 40px;
    width: 450px;
    position: relative;
    box-shadow: 0 0 30px #004411, inset 0 0 20px #004411;
    text-align: center;
    overflow: hidden; 
}

.header, #game-board, #status, .controls {
    position: relative;
    z-index: 20; 
}

.game-container::before {
    content: " ";
    display: block;
    position: absolute;
    top: 0; left: 0; bottom: 0; right: 0;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.2) 50%);
    background-size: 100% 4px;
    z-index: 10;
    pointer-events: none;
    animation: flicker 0.12s infinite;
}

.game-container::after {
    content: " ";
    display: block;
    position: absolute;
    top: 0; left: 0; bottom: 0; right: 0;
    background: radial-gradient(circle, rgba(0,0,0,0) 40%, rgba(0,0,0,0.8) 100%);
    z-index: 11;
    pointer-events: none;
}

@keyframes flicker {
    0% { opacity: 0.96; }
    100% { opacity: 1; }
}

h1 {
    color: #00ff41;
    font-size: 2rem;
    text-shadow: 0 0 10px #00ff41;
    margin: 0 0 5px 0;
}

.header p {
    font-size: 0.9rem;
    color: #008800;
    margin: 20px 0;
}

#game-board {
    display: grid;
    grid-template-columns: repeat(3, 90px); 
    grid-gap: 15px;
    width: 300px;
    margin: 0 auto;
}

.cell {
    width: 90px;
    height: 90px;
    background: #080808;
    border: 1px solid #004411;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.5rem;
    cursor: pointer;
    text-shadow: 0 0 8px #00ff41;
}

#status {
    margin-top: 20px;
    font-size: 0.9rem;
    color: #00ff41;
    height: 50px; 
    display: flex;
    justify-content: center;
    align-items: center;
    text-transform: uppercase;
}

.controls {
    font-size: 0.8rem;
    color: #004411;
    margin-top: 15px;
    border-top: 1px solid #002200;
    padding-top: 10px;
}