.canvas-container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    aspect-ratio: 1;
    touch-action: manipulation; /* Prevents browser zooming on double-tap */
}

#gameCanvas {
    width: 100%;
    height: 100%;
    background-color: var(--bs-dark);
    border-radius: 8px;
    cursor: pointer;
    /* Make canvas tap targets larger for better touch */
    touch-action: manipulation;
}

.card {
    background-color: var(--bs-dark);
    border: 1px solid var(--bs-border-color);
}

/* Game info display (moves, hints, etc.) */
.game-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 1rem;
}

.game-info > div {
    flex: 1 0 auto;
    text-align: center;
    background-color: rgba(0,0,0,0.2);
    padding: 8px 4px;
    border-radius: 4px;
    min-width: calc(50% - 8px); /* Two items per row on very small screens */
}

@media (min-width: 576px) {
    .game-info > div {
        min-width: auto; /* Let items arrange naturally on larger screens */
    }
}

.moves, .hints, .level, .lives {
    font-size: 1rem;
    font-weight: bold;
}

/* Game controls */
.game-controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-top: 1rem;
}

.game-controls .btn {
    flex: 1 0 calc(50% - 8px); /* Two buttons per row on mobile */
    padding: 10px 0; /* Taller buttons for easier tapping */
    max-width: 160px; /* Limit button width on larger screens */
    pointer-events: auto; /* Ensure buttons are clickable */
    position: relative; /* Ensure proper stacking */
    z-index: 10; /* Above any background elements */
}

@media (min-width: 576px) {
    .game-controls .btn {
        flex: 0 0 auto; /* Let buttons size naturally on larger screens */
        padding: 6px 12px;
    }
}

/* Level selection */
.level-selection {
    margin-top: 1.5rem;
}

.level-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
}

.level-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0; /* Remove default padding */
    font-size: 0.9rem;
}

/* Add more space on small screens for better touch targets */
@media (max-width: 400px) {
    .level-btn {
        width: 45px;
        height: 45px;
    }
}

/* Level transition effects */
.level-transition-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.7);
    border-radius: 16px;
    padding: 20px 40px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.8);
    min-width: 200px;
    z-index: 2000;
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.level-transition-indicator span:first-child {
    font-size: 2.5rem;
    font-weight: bold;
    color: #fff;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    margin-bottom: 0.5rem;
    text-align: center;
    width: 100%;
}

.level-transition-indicator span:nth-child(2) {
    font-size: 1.2rem;
    color: #f44336;
    text-shadow: 0 0 8px rgba(244, 67, 54, 0.5);
    font-weight: 600;
    text-align: center;
    width: 100%;
}

/* Pulse animation for level indicator */
@keyframes pulse {
    0% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.05); }
    100% { transform: translate(-50%, -50%) scale(1); }
}

.level-transition-indicator.visible {
    opacity: 1;
    animation: pulse 1s ease-in-out infinite;
}

/* Mobile optimizations */
/* Tutorial styling */
.tutorial-canvas-container {
    max-width: 400px;
    margin: 0 auto;
}

#tutorialCanvas {
    width: 100%;
    height: 100%;
    background-color: var(--bs-dark);
    border-radius: 8px;
    cursor: pointer;
    touch-action: manipulation;
}

.tutorial-highlight {
    animation: glow 1.5s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        box-shadow: 0 0 10px rgba(255, 215, 0, 0.6);
    }
    to {
        box-shadow: 0 0 20px rgba(255, 215, 0, 0.9);
    }
}

.tutorial-progress {
    padding: 10px 0;
}

.tutorial-tip {
    border-left: 3px solid var(--bs-info);
    padding: 8px 12px;
    margin: 10px 0;
    background-color: rgba(0, 123, 255, 0.1);
    border-radius: 0 4px 4px 0;
}

/* Mobile optimizations */
@media (max-width: 576px) {
    h1 {
        font-size: 1.5rem;
    }
    
    h2 {
        font-size: 1.3rem;
    }
    
    .card-body {
        padding: 1rem 0.75rem;
    }
    
    ul {
        padding-left: 1.25rem;
    }
    
    li {
        margin-bottom: 0.5rem;
    }
    
    .level-transition-indicator {
        padding: 15px 30px;
        min-width: 180px;
    }
    
    .level-transition-indicator span:first-child {
        font-size: 2rem;
    }
    
    .level-transition-indicator span:nth-child(2) {
        font-size: 1rem;
    }
    
    .tutorial-canvas-container {
        max-width: 300px;
    }
    
    #tutorialTips {
        font-size: 0.9rem;
    }
}

/* Level selection specific styles */
.level-section {
    margin-bottom: 2rem;
}

.level-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}

.level-grid .level-btn {
    aspect-ratio: 1;
    font-weight: bold;
    font-size: 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    width: auto;
    height: auto;
}

.level-grid .level-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.section-title {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0;
}

.difficulty-badge {
    font-size: 0.8rem;
    padding: 0.25rem 0.75rem;
}

/* Custom cascade color classes */
.btn-outline-cascade-yellow {
    --bs-btn-color: #ffeb3b;
    --bs-btn-border-color: #ffeb3b;
    --bs-btn-hover-color: #000;
    --bs-btn-hover-bg: #ffeb3b;
    --bs-btn-hover-border-color: #ffeb3b;
    --bs-btn-focus-shadow-rgb: 255, 235, 59;
    --bs-btn-active-color: #000;
    --bs-btn-active-bg: #ffeb3b;
    --bs-btn-active-border-color: #ffeb3b;
    --bs-btn-active-shadow: inset 0 3px 5px rgba(0, 0, 0, 0.125);
    --bs-btn-disabled-color: #ffeb3b;
    --bs-btn-disabled-bg: transparent;
    --bs-btn-disabled-border-color: #ffeb3b;
    --bs-gradient: none;
}

.btn-outline-cascade-red {
    --bs-btn-color: #f44336;
    --bs-btn-border-color: #f44336;
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: #f44336;
    --bs-btn-hover-border-color: #f44336;
    --bs-btn-focus-shadow-rgb: 244, 67, 54;
    --bs-btn-active-color: #fff;
    --bs-btn-active-bg: #f44336;
    --bs-btn-active-border-color: #f44336;
    --bs-btn-active-shadow: inset 0 3px 5px rgba(0, 0, 0, 0.125);
    --bs-btn-disabled-color: #f44336;
    --bs-btn-disabled-bg: transparent;
    --bs-btn-disabled-border-color: #f44336;
    --bs-gradient: none;
}

.btn-outline-cascade-blue {
    --bs-btn-color: #2196F3;
    --bs-btn-border-color: #2196F3;
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: #2196F3;
    --bs-btn-hover-border-color: #2196F3;
    --bs-btn-focus-shadow-rgb: 33, 150, 243;
    --bs-btn-active-color: #fff;
    --bs-btn-active-bg: #2196F3;
    --bs-btn-active-border-color: #2196F3;
    --bs-btn-active-shadow: inset 0 3px 5px rgba(0, 0, 0, 0.125);
    --bs-btn-disabled-color: #2196F3;
    --bs-btn-disabled-bg: transparent;
    --bs-btn-disabled-border-color: #2196F3;
    --bs-gradient: none;
}

.btn-outline-cascade-purple {
    --bs-btn-color: #9c27b0;
    --bs-btn-border-color: #9c27b0;
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: #9c27b0;
    --bs-btn-hover-border-color: #9c27b0;
    --bs-btn-focus-shadow-rgb: 156, 39, 176;
    --bs-btn-active-color: #fff;
    --bs-btn-active-bg: #9c27b0;
    --bs-btn-active-border-color: #9c27b0;
    --bs-btn-active-shadow: inset 0 3px 5px rgba(0, 0, 0, 0.125);
    --bs-btn-disabled-color: #9c27b0;
    --bs-btn-disabled-bg: transparent;
    --bs-btn-disabled-border-color: #9c27b0;
    --bs-gradient: none;
}

.btn-outline-cascade-pink {
    --bs-btn-color: #ffb3da;
    --bs-btn-border-color: #ffb3da;
    --bs-btn-hover-color: #000;
    --bs-btn-hover-bg: #ffb3da;
    --bs-btn-hover-border-color: #ffb3da;
    --bs-btn-focus-shadow-rgb: 255, 179, 218;
    --bs-btn-active-color: #000;
    --bs-btn-active-bg: #ffb3da;
    --bs-btn-active-border-color: #ffb3da;
    --bs-btn-active-shadow: inset 0 3px 5px rgba(0, 0, 0, 0.125);
    --bs-btn-disabled-color: #ffb3da;
    --bs-btn-disabled-bg: transparent;
    --bs-btn-disabled-border-color: #ffb3da;
    --bs-gradient: none;
}

.btn-outline-cascade-green {
    --bs-btn-color: #2e7d32;
    --bs-btn-border-color: #2e7d32;
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: #2e7d32;
    --bs-btn-hover-border-color: #2e7d32;
    --bs-btn-focus-shadow-rgb: 46, 125, 50;
    --bs-btn-active-color: #fff;
    --bs-btn-active-bg: #2e7d32;
    --bs-btn-active-border-color: #2e7d32;
    --bs-btn-active-shadow: inset 0 3px 5px rgba(0, 0, 0, 0.125);
    --bs-btn-disabled-color: #2e7d32;
    --bs-btn-disabled-bg: transparent;
    --bs-btn-disabled-border-color: #2e7d32;
    --bs-gradient: none;
}