:root {
    --neon-cyan: #00f0ff;
    --neon-pink: #ff00ff;
    --neon-green: #39ff14;
    --neon-red: #ff3131;
    --dark-bg: #0a0a0f;
    --darker-bg: #050508;
    --grid-line: rgba(0, 240, 255, 0.08);
}

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

body {
    font-family: 'Rajdhani', sans-serif;
    background: var(--dark-bg);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

.scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.15),
        rgba(0, 0, 0, 0.15) 1px,
        transparent 1px,
        transparent 2px
    );
    pointer-events: none;
    z-index: 1000;
}

.vignette {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(0,0,0,0.4) 100%);
    pointer-events: none;
    z-index: 999;
}

.game-container {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 20px;
}

.game-header {
    text-align: center;
    margin-bottom: 10px;
}

.title {
    font-family: 'Orbitron', sans-serif;
    font-size: 4rem;
    font-weight: 900;
    color: var(--neon-cyan);
    text-shadow: 
        0 0 10px var(--neon-cyan),
        0 0 20px var(--neon-cyan),
        0 0 40px var(--neon-cyan),
        0 0 80px var(--neon-cyan);
    letter-spacing: 0.2em;
    position: relative;
}

.glitch {
    animation: glitch 3s infinite;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch::before {
    color: var(--neon-pink);
    animation: glitch-1 2s infinite;
    clip-path: polygon(0 0, 100% 0, 100% 35%, 0 35%);
    transform: translateX(-2px);
}

.glitch::after {
    color: var(--neon-green);
    animation: glitch-2 2s infinite;
    clip-path: polygon(0 65%, 100% 65%, 100% 100%, 0 100%);
    transform: translateX(2px);
}

@keyframes glitch {
    0%, 90%, 100% { transform: translate(0); }
    92% { transform: translate(-2px, 2px); }
    94% { transform: translate(2px, -2px); }
    96% { transform: translate(-1px, 1px); }
    98% { transform: translate(1px, -1px); }
}

@keyframes glitch-1 {
    0%, 100% { transform: translateX(-2px); }
    50% { transform: translateX(2px); }
}

@keyframes glitch-2 {
    0%, 100% { transform: translateX(2px); }
    50% { transform: translateX(-2px); }
}

.subtitle {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.9rem;
    color: var(--neon-pink);
    letter-spacing: 0.5em;
    text-shadow: 0 0 10px var(--neon-pink);
    margin-top: -10px;
}

.game-board-container {
    position: relative;
    border: 2px solid var(--neon-cyan);
    border-radius: 4px;
    box-shadow: 
        0 0 20px rgba(0, 240, 255, 0.3),
        inset 0 0 20px rgba(0, 240, 255, 0.05);
    background: var(--darker-bg);
}

#gameCanvas {
    display: block;
    background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 30px 30px;
    pointer-events: none;
}

.game-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(5, 5, 8, 0.95);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    backdrop-filter: blur(5px);
}

.game-overlay.hidden {
    display: none;
}

.overlay-content {
    text-align: center;
    padding: 40px;
}

.neon-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    color: var(--neon-cyan);
    text-shadow: 
        0 0 10px var(--neon-cyan),
        0 0 20px var(--neon-cyan),
        0 0 40px var(--neon-cyan);
    margin-bottom: 20px;
    animation: pulse 2s ease-in-out infinite;
}

.neon-text.red {
    color: var(--neon-red);
    text-shadow: 
        0 0 10px var(--neon-red),
        0 0 20px var(--neon-red),
        0 0 40px var(--neon-red);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.controls-hint {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
    margin-bottom: 30px;
}

.key {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid var(--neon-cyan);
    border-radius: 4px;
    color: var(--neon-cyan);
    font-family: 'Orbitron', sans-serif;
    font-size: 0.75rem;
    margin: 0 2px;
}

.start-btn {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.1rem;
    padding: 15px 40px;
    background: transparent;
    border: 2px solid var(--neon-cyan);
    color: var(--neon-cyan);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.start-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.start-btn:hover {
    background: rgba(0, 240, 255, 0.1);
    box-shadow: 
        0 0 20px rgba(0, 240, 255, 0.4),
        inset 0 0 20px rgba(0, 240, 255, 0.1);
    text-shadow: 0 0 10px var(--neon-cyan);
}

.start-btn:hover::before {
    left: 100%;
}

.final-score {
    margin: 20px 0 30px;
}

.final-score .label {
    display: block;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.8rem;
    letter-spacing: 0.3em;
    margin-bottom: 10px;
}

.final-score .value {
    font-family: 'Orbitron', sans-serif;
    font-size: 3rem;
    color: var(--neon-green);
    text-shadow: 0 0 20px var(--neon-green);
}

.game-stats {
    display: flex;
    gap: 30px;
    justify-content: center;
}

.stat-box {
    text-align: center;
    padding: 15px 25px;
    background: rgba(0, 240, 255, 0.05);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 4px;
    min-width: 100px;
}

.stat-label {
    display: block;
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.2em;
    margin-bottom: 5px;
}

.stat-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    color: var(--neon-cyan);
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
}

.controls-info {
    display: flex;
    gap: 30px;
    margin-top: 10px;
}

.control-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.control-item .key {
    font-size: 0.7rem;
}

.control-item .desc {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}

@media (max-width: 700px) {
    .title {
        font-size: 2.5rem;
    }
    
    #gameCanvas {
        width: 350px;
        height: 350px;
    }
    
    .game-stats {
        gap: 15px;
    }
    
    .stat-box {
        padding: 10px 15px;
        min-width: 80px;
    }
    
    .stat-value {
        font-size: 1.2rem;
    }
}