.game-404{--game-404-bg-primary:var(--bs-body-bg);--game-404-text-primary:var(--bs-body-color);--game-404-text-muted:var(--bs-secondary);--game-404-accent:var(--bs-primary);--game-404-border-color:var(--bs-border-color);--game-404-canvas-bg:var(--bs-light);--game-404-runner-color:var(--bs-dark);--game-404-obstacle-color:var(--bs-danger);--game-404-ground-color:var(--bs-secondary);--game-404-ground-line-color:var(--bs-dark);--game-404-kbd-bg:var(--bs-light);--game-404-kbd-border:var(--bs-border-color);--game-404-font-display:"Press Start 2P",monospace;--game-404-font-body:"Inter",sans-serif;font-family:var(--game-404-font-body);background-color:var(--game-404-bg-primary);color:var(--game-404-text-primary);min-height:100vh;display:flex;align-items:center;padding:2rem 1rem}.game-404 .content-wrapper{max-width:850px;margin:0 auto;width:100%}.game-404 .error-header{margin-bottom:3rem}.game-404 .error-code{font-family:var(--game-404-font-display);font-size:5rem;color:var(--game-404-accent);margin-bottom:1rem;line-height:1}.game-404 .error-title{font-size:1.75rem;font-weight:600;margin-bottom:1rem}.game-404 .error-message{font-size:1.1rem;color:var(--game-404-text-muted);margin-bottom:0}.game-404 .game-container{background-color:var(--game-404-canvas-bg);border:2px solid var(--game-404-border-color);border-radius:.5rem;padding:1.5rem;margin-bottom:2rem}.game-404 .game-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;font-family:var(--game-404-font-display);font-size:.75rem}.game-404 .high-score-display,.game-404 .score-display{display:flex;align-items:baseline;gap:.5rem}.game-404 .score-label{color:var(--game-404-text-muted);font-size:.65rem}@media (min-width:768px){.game-404 .error-code{font-size:7rem}.game-404 .error-title{font-size:2rem}.game-404 .game-container{padding:2rem}.game-404 .game-header{font-size:.9rem}.game-404 .score-label{font-size:.75rem}}.game-404 #game-canvas{display:block;width:100%;height:auto;border:2px solid var(--game-404-border-color);border-radius:.25rem;background-color:var(--game-404-bg-primary);margin-bottom:1rem;cursor:pointer}.game-404 .game-controls{position:relative;min-height:60px}.game-404 .control-hint,.game-404 .game-over-message{font-size:.9rem;color:var(--game-404-text-muted);margin:0}.game-404 .game-over-message{display:none;font-family:var(--game-404-font-display);font-size:1.25rem;color:var(--game-404-accent);line-height:1.6}.game-404 .game-over-message small{font-size:.6rem;color:var(--game-404-text-muted);font-family:var(--game-404-font-body)}.game-404 kbd{background-color:var(--game-404-kbd-bg);border:1px solid var(--game-404-kbd-border);border-radius:.25rem;padding:.15rem .4rem;font-family:var(--game-404-font-display);font-size:.75rem;color:var(--game-404-runner-color);box-shadow:0 1px 2px rgba(var(--bs-dark-rgb),.1)}.game-404 .action-buttons{margin-top:2rem}.game-404 .btn-home{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-size:1rem;font-weight:600}