@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&display=swap');

:root {
    --neon-blue: #0ff;
    --neon-pink: #f0f;
    --neon-yellow: #ff0;
    --bg-color: #000;
}

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

body {
    background-color: var(--bg-color);
    font-family: 'Share Tech Mono', monospace;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--neon-blue);
}

.game-container {
    position: relative;
    padding: 20px;
    border: 2px solid var(--neon-blue);
    box-shadow: 0 0 20px var(--neon-blue),
                inset 0 0 20px var(--neon-blue);
    animation: borderGlow 2s infinite alternate;
}

.game-title {
    text-align: center;
    font-size: 3em;
    margin-bottom: 20px;
    color: var(--neon-pink);
    text-transform: uppercase;
    animation: titleGlow 1.5s infinite alternate;
    letter-spacing: 4px;
}

@keyframes titleGlow {
    from {
        text-shadow: 0 0 10px var(--neon-pink),
                     0 0 20px var(--neon-pink),
                     0 0 30px var(--neon-pink);
    }
    to {
        text-shadow: 0 0 20px var(--neon-pink),
                     0 0 40px var(--neon-pink),
                     0 0 60px var(--neon-pink);
    }
}

#gameCanvas {
    background-color: rgba(0, 255, 255, 0.1);
    border: 1px solid var(--neon-blue);
    width: 600px;
    height: 400px;
}

.score-container {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    font-size: 1.2em;
    text-shadow: 0 0 10px var(--neon-blue);
}

.controls {
    margin-top: 20px;
    text-align: center;
}

.button {
    display: inline-block;
    padding: 10px 20px;
    border: 1px solid var(--neon-pink);
    color: var(--neon-pink);
    cursor: pointer;
    text-shadow: 0 0 10px var(--neon-pink);
    transition: all 0.3s ease;
}

.button:hover {
    background-color: var(--neon-pink);
    color: var(--bg-color);
    box-shadow: 0 0 20px var(--neon-pink);
}

.instructions {
    margin-top: 20px;
    font-size: 0.9em;
    color: var(--neon-yellow);
    text-shadow: 0 0 10px var(--neon-yellow);
}

@keyframes borderGlow {
    from {
        box-shadow: 0 0 20px var(--neon-blue),
                    inset 0 0 20px var(--neon-blue);
    }
    to {
        box-shadow: 0 0 40px var(--neon-blue),
                    inset 0 0 40px var(--neon-blue);
    }
}

@keyframes glitch {
    0% {
        text-shadow: 0.05em 0 0 var(--neon-pink),
                     -0.05em -0.025em 0 var(--neon-blue),
                     -0.025em 0.05em 0 var(--neon-yellow);
    }
    14% {
        text-shadow: 0.05em 0 0 var(--neon-pink),
                     -0.05em -0.025em 0 var(--neon-blue),
                     -0.025em 0.05em 0 var(--neon-yellow);
    }
    15% {
        text-shadow: -0.05em -0.025em 0 var(--neon-pink),
                     0.025em 0.025em 0 var(--neon-blue),
                     -0.05em -0.05em 0 var(--neon-yellow);
    }
    49% {
        text-shadow: -0.05em -0.025em 0 var(--neon-pink),
                     0.025em 0.025em 0 var(--neon-blue),
                     -0.05em -0.05em 0 var(--neon-yellow);
    }
    50% {
        text-shadow: 0.025em 0.05em 0 var(--neon-pink),
                     0.05em 0 0 var(--neon-blue),
                     0 -0.05em 0 var(--neon-yellow);
    }
    99% {
        text-shadow: 0.025em 0.05em 0 var(--neon-pink),
                     0.05em 0 0 var(--neon-blue),
                     0 -0.05em 0 var(--neon-yellow);
    }
    100% {
        text-shadow: -0.025em 0 0 var(--neon-pink),
                     -0.025em -0.025em 0 var(--neon-blue),
                     -0.025em -0.05em 0 var(--neon-yellow);
    }
}

.screen {
    text-align: center;
}

.cyber-input {
    background: rgba(0, 255, 255, 0.1);
    border: 1px solid var(--neon-blue);
    color: var(--neon-blue);
    padding: 10px;
    font-family: 'Share Tech Mono', monospace;
    font-size: 1.2em;
    margin-bottom: 20px;
    width: 80%;
    text-align: center;
    outline: none;
    transition: all 0.3s ease;
}

.cyber-input:focus {
    box-shadow: 0 0 20px var(--neon-blue);
}

.cyber-heading {
    color: var(--neon-yellow);
    font-size: 2em;
    margin-bottom: 20px;
    text-shadow: 0 0 10px var(--neon-yellow);
}

.leaderboard-list {
    margin: 20px 0;
    padding: 10px;
    background: rgba(0, 255, 255, 0.1);
    border: 1px solid var(--neon-blue);
}

.leaderboard-item {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    margin: 5px 0;
    border-bottom: 1px solid rgba(0, 255, 255, 0.3);
}

.leaderboard-item:last-child {
    border-bottom: none;
}