/* Game Canvas & Core Game Styles */

/* Game Canvas */
.game-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    touch-action: none;
    z-index: 1;
}

/* Game Background Patterns */
.game-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(255, 107, 53, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 60%, rgba(255, 138, 80, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(216, 67, 21, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* Touch Controls */
/* Touch controls container preserved but non-interactive */
.touch-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 40%;
    z-index: 10;
    pointer-events: none;
}

/* Removed tap-area visuals and interactivity */
.tap-area {
    width: 100%;
    height: 100%;
    pointer-events: none;
    background: transparent;
}

/* Removed tap-area background gradient */
.tap-area::before { content: none; }

/* Removed tap-hint, tap-icon, tap-text styles */
.tap-hint, .tap-icon, .tap-text { display: none !important; }

/* Game HUD */
.game-hud {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    z-index: 20;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.3) 0%, transparent 100%);
}

.score-container {
    background: rgba(0, 0, 0, 0.5);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-medium);
    border: 2px solid rgba(255, 107, 53, 0.3);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.score-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-right: var(--spacing-sm);
}

.score-value {
    font-size: var(--font-size-lg);
    font-weight: bold;
    color: var(--text-accent);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

/* Button Styles */
.btn-icon-only {
    width: 48px;
    height: 48px;
    border: none;
    border-radius: var(--radius-medium);
    background: rgba(0, 0, 0, 0.5);
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.btn-icon-only:active {
    transform: scale(0.95);
    background: rgba(0, 0, 0, 0.7);
}

/* Game Physics Visual Effects */
.game-canvas.shake {
    animation: screenShake 0.3s ease-in-out;
}

@keyframes screenShake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-2px); }
    20%, 40%, 60%, 80% { transform: translateX(2px); }
}

/* Touch Feedback */
/* Remove tap ripple effect */
.tap-area:active::after { content: none; }

/* Removed tap-related keyframes */

/* Game Performance Optimizations */
.game-canvas {
    will-change: transform;
    transform: translateZ(0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

/* Safe Area Support for Notched Devices */
@supports (padding: max(0px)) {
    .game-hud {
        padding-top: max(var(--spacing-md), env(safe-area-inset-top));
        padding-left: max(var(--spacing-md), env(safe-area-inset-left));
        padding-right: max(var(--spacing-md), env(safe-area-inset-right));
    }
    
    .touch-controls {
        padding-bottom: max(0px, env(safe-area-inset-bottom));
    }
}

/* Landscape Mode Adjustments */
@media screen and (orientation: landscape) and (max-height: 500px) {
    .game-hud {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .score-container {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .score-value {
        font-size: var(--font-size-md);
    }
    
    .tap-hint {
        transform: scale(0.8);
    }
    
    .touch-controls {
        height: 50%;
    }
}

/* High Refresh Rate Displays */
@media (min-resolution: 120dpi) {
    .game-canvas {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: pixelated;
    }
}