Build a Snake game as a polished single-page web app in this directory: index.html, sty…

antigravitygemini · 22 steps · 45s · 3 filessession 702da62c-ac0@agentsage
Build a Snake game as a polished single-page web app in this directory: index.html, style.css, game.js (vanilla JS, no deps). Canvas grid; snake grows on eating food; dies on wall or self collision; live score and a high score persisted in localStorage; speed ramps up as the score climbs; arrow keys AND wasd; spacebar to pause; a game-over overlay with a restart button; and a sharp dark neon theme. Make it genuinely nice. Work ONLY in this exact directory: …/snake-antigravity
same matchpi · 18 steps codex · 73 steps claude-code · 55 steps antigravity · 22 steps
compare in arena
step 11 / 22
style.csschange 1/1
/* Neon Snake - Premium Cyberpunk Style Sheet */
 
:root {
    --bg-dark: #07080d;
    --bg-card: rgba(15, 17, 28, 0.7);
    --border-color: rgba(0, 240, 255, 0.2);
    
    /* Neon Palettes */
    --neon-cyan: #00f0ff;
    --neon-pink: #ff007f;
    --neon-yellow: #ffbc00;
    --neon-red: #ff2e2e;
    --neon-green: #39ff14;
    --neon-blue: #0066ff;
    
    /* Glows */
    --glow-cyan: 0 0 10px rgba(0, 240, 255, 0.5), 0 0 20px rgba(0, 240, 255, 0.3);
    --glow-pink: 0 0 10px rgba(255, 0, 127, 0.5), 0 0 20px rgba(255, 0, 127, 0.3);
    --glow-yellow: 0 0 10px rgba(255, 188, 0, 0.5), 0 0 20px rgba(255, 188, 0, 0.3);
    --glow-red: 0 0 10px rgba(255, 46, 46, 0.5), 0 0 20px rgba(255, 46, 46, 0.3);
    --glow-green: 0 0 10px rgba(57, 255, 20, 0.5), 0 0 20px rgba(57, 255, 20, 0.3);
    
    /* Fonts */
    --font-display: 'Orbitron', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
}
 
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
 
body {
    background-color: var(--bg-dark);
    color: #e2e8f0;
    font-family: var(--font-sans);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
}
 
/* Cosmic Neon Background */
.stars-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background: 
        radial-gradient(circle at 20% 30%, rgba(0, 102, 255, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(255, 0, 127, 0.1) 0%, transparent 40%),
        #07080d;
    background-size: cover;
}
 
/* Cyberpunk Scanlines Overlays */
.scanlines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        rgba(18, 16, 16, 0) 50%, 
        rgba(0, 0, 0, 0.25) 50%
    );
    background-size: 100% 4px;
    z-index: 10;
    pointer-events: none;
}
 
/* Core Container */
.game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 580px;
    padding: 20px;
    z-index: 1;
}
 
/* Header styling */
.game-header {
    text-align: center;
    margin-bottom: 20px;
}
 
.glitch-text {
    font-family: var(--font-display);
    font-size: 2.8rem;
    font-weight: 900;
    color: #fff;
    text-shadow: var(--glow-cyan);
    letter-spacing: 4px;
    position: relative;
}
 
.subtitle {
    font-family: var(--font-display);
    font-size: 0.8rem;
    color: var(--neon-pink);
    letter-spacing: 6px;
    margin-top: 4px;
    font-weight: 700;
    text-shadow: 0 0 5px rgba(255, 0, 127, 0.5);
}
 
/* Scoreboard */
.scoreboard {
    display: flex;
    justify-content: space-between;
    width: 100%;
    gap: 15px;
    margin-bottom: 20px;
}
 
.stat-card {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    backdrop-filter: blur(10px);
    transition: transform 0.2s, border-color 0.2s;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}
 
#score-card { border-left: 3px solid var(--neon-cyan); }
#high-score-card { border-left: 3px solid var(--neon-pink); }
#speed-card { border-left: 3px solid var(--neon-yellow); }
 
.stat-card:hover {
    transform: translateY(-2px);
    border-color: rgba(0, 240, 255, 0.4);
}
 
.stat-label {
    font-family: var(--font-display);
    font-size: 0.65rem;
    color: #94a3b8;
    letter-spacing: 2px;
    margin-bottom: 6px;
    font-weight: 700;
}
 
.stat-value {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: #ffffff;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.2);
}
 
#current-score {
    color: var(--neon-cyan);
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
}
 
#high-score {
    color: var(--neon-pink);
    text-shadow: 0 0 10px rgba(255, 0, 127, 0.3);
}
 
#speed-level {
    color: var(--neon-yellow);
    text-shadow: 0 0 10px rgba(255, 188, 0, 0.3);
}
 
/* Canvas Display Area */
.canvas-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 16px;
    overflow: hidden;
    border: 2px solid var(--neon-cyan);
    box-shadow: 
        0 0 20px rgba(0, 240, 255, 0.15),
        inset 0 0 20px rgba(0, 240, 255, 0.15),
        0 8px 32px rgba(0, 0, 0, 0.6);
    background-color: rgba(10, 11, 18, 0.95);
    margin-bottom: 25px;
}
 
#game-canvas {
    display: block;
    width: 100%;
    height: 100%;
}
 
/* Overlays (Start, Pause, Gameover) */
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(6, 7, 12, 0.85);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 5;
}
 
.overlay.active {
    opacity: 1;
    visibility: visible;
}
 
.overlay-content {
    text-align: center;
    padding: 30px;
    max-width: 85%;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}
 
.overlay.active .overlay-content {
    transform: scale(1);
}
 
.overlay h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 15px;
    letter-spacing: 2px;
}
 
.glow-cyan {
    color: var(--neon-cyan);
    text-shadow: var(--glow-cyan);
}
 
.glow-yellow {
    color: var(--neon-yellow);
    text-shadow: var(--glow-yellow);
}
 
.glow-red {
    color: var(--neon-red);
    text-shadow: var(--glow-red);
}
 
.instruction-text {
    font-size: 0.9rem;
    line-height: 1.6;
    color: #94a3b8;
    margin-bottom: 25px;
}
 
/* Buttons */
.btn {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
    padding: 12px 28px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    letter-spacing: 2px;
    transition: all 0.3s;
    outline: none;
}
 
.btn-primary {
    background: var(--neon-cyan);
    color: var(--bg-dark);
    box-shadow: var(--glow-cyan);
}
 
.btn-primary:hover {
    background: #ffffff;
    box-shadow: 0 0 25px rgba(255, 255, 255, 0.8);
    transform: translateY(-2px);
}
 
.btn-secondary {
    background: transparent;
    color: var(--neon-yellow);
    border: 1px solid var(--neon-yellow);
    box-shadow: inset 0 0 5px rgba(255, 188, 0, 0.2);
}
 
.btn-secondary:hover {
    background: var(--neon-yellow);
    color: var(--bg-dark);
    box-shadow: var(--glow-yellow);
    transform: translateY(-2px);
}
 
.btn-glow-red {
    background: var(--neon-red);
    color: #fff;
    box-shadow: var(--glow-red);
}
 
.btn-glow-red:hover {
    background: #ffffff;
    color: var(--bg-dark);
    box-shadow: 0 0 25px rgba(255, 255, 255, 0.8);
    transform: translateY(-2px);
}
 
/* Gameover statistics in overlay */
.gameover-reason {
    font-family: var(--font-display);
    font-size: 0.9rem;
    color: #f1f5f9;
    letter-spacing: 4px;
    margin-bottom: 20px;
    font-weight: 700;
}
 
.gameover-stats {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 25px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
 
.stat-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: #94a3b8;
    font-family: var(--font-display);
}
 
.highlight-text {
    color: var(--neon-pink);
    font-weight: 700;
    text-shadow: 0 0 5px rgba(255, 0, 127, 0.3);
}
 
/* Key Badge styles */
.key-badge {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-bottom: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 5px;
    padding: 2px 8px;
    font-family: var(--font-display);
    font-size: 0.75rem;
    color: #fff;
    display: inline-block;
    vertical-align: middle;
}
 
/* Controls Panel */
.game-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 15px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}
 
.control-group {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
}
 
.control-group:last-child {
    align-items: flex-end;
}
 
.control-title {
    font-family: var(--font-display);
    font-size: 0.6rem;
    color: #64748b;
    letter-spacing: 1px;
    font-weight: 700;
}
 
.control-keys {
    display: flex;
    align-items: center;
    gap: 5px;
}
 
.control-separator {
    color: #475569;
    font-size: 0.8rem;
}
 
/* Audio Toggle Button */
.audio-toggle {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #cbd5e1;
    font-family: var(--font-display);
    font-size: 0.7rem;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    letter-spacing: 1px;
}
 
.audio-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--neon-cyan);
    color: #fff;
}
 
/* Responsive adjustment */
@media (max-width: 520px) {
    .game-container {
        padding: 10px;
    }
    
    .glitch-text {
        font-size: 2.2rem;
    }
    
    .scoreboard {
        gap: 8px;
    }
    
    .stat-card {
        padding: 8px;
    }
    
    .stat-value {
        font-size: 1.1rem;
    }
    
    .game-controls {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
    }
    
    .control-group {
        align-items: center !important;
    }
}
 
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