/* Katana Runner - Game Styles */
:root {
    --katana-yellow: #f6ff0d;
    --katana-navy: #101631;
    --katana-blue: #4bbbf0;
    --katana-dark: #0a0f1f;
    --katana-light: #1a2040;
    --shadow-color: rgba(16, 22, 49, 0.5);
    --glow-color: rgba(246, 255, 13, 0.3);
}

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

body {
    font-family: 'Courier New', monospace;
    background: linear-gradient(135deg, var(--katana-dark) 0%, var(--katana-navy) 100%) !important;
    color: var(--katana-yellow);
    overflow: hidden;
    height: 100vh;
    height: 100dvh; /* Use dynamic viewport height on mobile */
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 0;
    width: 100%;
}

.game-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    height: 100vh;
    max-height: 600px;
    background: var(--katana-navy) !important;
    border: 2px solid var(--katana-blue);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 0 30px var(--glow-color);
}

/* Game Header */
.game-header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: rgba(16, 22, 49, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--katana-blue);
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.katana-k {
    font-size: 28px;
    font-weight: bold;
    color: var(--katana-yellow);
    background: var(--katana-blue);
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    text-shadow: 0 0 10px var(--katana-yellow);
}

.katana-k-img {
    width: 35px;
    height: 35px;
    border-radius: 4px;
    object-fit: cover;
    background: var(--katana-blue);
    padding: 2px;
    box-shadow: 0 0 10px var(--glow-color);
}

.game-title {
    font-size: 18px;
    font-weight: bold;
    letter-spacing: 2px;
}

.score-display {
    font-size: 20px;
    font-weight: bold;
    color: var(--katana-yellow);
    text-shadow: 0 0 10px var(--glow-color);
}

/* Game Canvas */
#gameCanvas {
    display: block;
    background: linear-gradient(180deg, #1a2040 0%, #0f1420 100%);
    cursor: pointer;
    margin: 0 auto;
    width: 100%;
    height: 100%;
    max-width: 800px;
    max-height: 600px;
    object-fit: contain;
}

/* Screen Overlays */
.screen {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(16, 22, 49, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    animation: fadeIn 0.3s ease-in-out;
}

.screen.hidden {
    display: none;
}

.screen-content {
    text-align: center;
    padding: 40px;
    max-width: 400px;
}

.screen h1 {
    font-size: 36px;
    color: var(--katana-yellow);
    margin-bottom: 20px;
    text-shadow: 0 0 20px var(--glow-color);
    letter-spacing: 3px;
}

.tagline {
    font-size: 16px;
    color: var(--katana-blue);
    margin-bottom: 30px;
    opacity: 0.9;
}

.character-preview {
    margin: 30px 0;
    display: flex;
    justify-content: center;
}

.preview-char {
    width: 80px;
    height: 80px;
    image-rendering: pixelated;
    border: 2px solid var(--katana-blue);
    border-radius: 8px;
    background: var(--katana-light);
    padding: 5px;
}

.controls-info {
    margin: 20px 0;
    color: var(--katana-blue);
}

.key {
    background: var(--katana-yellow);
    color: var(--katana-navy);
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: bold;
    font-size: 12px;
}

/* Buttons */
.game-btn {
    background: var(--katana-blue);
    color: var(--katana-navy);
    border: none;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: bold;
    border-radius: 6px;
    cursor: pointer;
    margin: 8px;
    transition: all 0.3s ease;
    font-family: inherit;
    letter-spacing: 1px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}

.game-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(75, 187, 240, 0.4);
}

.game-btn.primary {
    background: var(--katana-yellow);
    color: var(--katana-navy);
}

.game-btn.primary:hover {
    box-shadow: 0 4px 15px var(--glow-color);
}

.game-btn.secondary {
    background: transparent;
    color: var(--katana-blue);
    border: 1px solid var(--katana-blue);
}

.game-btn:active {
    transform: translateY(0);
}

/* Mute Button - Same style as primary buttons */
.game-btn.mute-btn {
    background: var(--katana-yellow);
    color: var(--katana-navy);
    padding: 12px 16px; /* Smaller horizontal padding for compact size */
    height: 39px; /* Match START button height */
    width: auto; /* Let content determine width with padding */
    min-width: 60px; /* Compact minimum width for emoji */
    box-sizing: border-box; /* Ensure consistent sizing */
    display: inline-flex; /* Match button display */
    align-items: center; /* Center content vertically */
    justify-content: center; /* Center content horizontally */
}

.game-btn.mute-btn:hover {
    box-shadow: 0 4px 15px var(--glow-color);
}

.game-btn.mute-btn.muted {
    background: var(--katana-blue);
    color: var(--katana-navy);
    opacity: 0.7;
}

.game-btn.mute-btn.muted:hover {
    box-shadow: 0 4px 15px rgba(75, 187, 240, 0.4);
}

/* Score Display */
.high-score, .score-summary {
    margin: 20px 0;
    color: var(--katana-blue);
}

.final-score, .best-score {
    font-size: 18px;
    margin: 10px 0;
    color: var(--katana-yellow);
}

.game-over-title {
    color: #ff4757 !important;
    text-shadow: 0 0 20px rgba(255, 71, 87, 0.5) !important;
}

.game-over-message {
    margin: 20px 0;
    font-style: italic;
    color: var(--katana-blue);
}

/* Settings Button */
.settings-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    pointer-events: auto;
}

.settings-btn {
    background: rgba(75, 187, 240, 0.2);
    border: 2px solid var(--katana-blue);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 10000;
    pointer-events: auto;
}

.settings-btn:hover {
    background: rgba(75, 187, 240, 0.4);
    transform: scale(1.1) rotate(90deg);
    box-shadow: 0 0 15px rgba(75, 187, 240, 0.5);
}

.settings-icon {
    width: 24px;
    height: 24px;
    filter: brightness(0) saturate(100%) invert(62%) sepia(93%) saturate(1352%) hue-rotate(169deg) brightness(109%) contrast(101%);
    transition: transform 0.3s ease;
}

.settings-btn:hover .settings-icon {
    transform: rotate(-90deg);
}

/* Instructions */
.instructions {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    color: var(--katana-blue);
    opacity: 0.7;
    z-index: 50;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.game-btn:hover {
    animation: pulse 1s infinite;
}

/* Mobile Responsive - Force Full Screen */
@media screen and (max-width: 768px) {
    * {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    
    html {
        width: 100vw;
        height: 100vh;
        overflow: hidden;
        background: #0a0f1f;
    }
    
    body {
        width: 100vw;
        height: 100vh;
        margin: 0 !important;
        padding: 0 !important;
        overflow: hidden;
        position: fixed;
        top: 0;
        left: 0;
        background: #0a0f1f;
    }
    
    .game-container {
        width: 100vw !important;
        height: 100vh !important;
        max-width: none !important;
        max-height: none !important;
        border: none !important;
        border-radius: 0 !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        margin: 0 !important;
        padding: 0 !important;
        box-shadow: none !important;
    }
    
    #gameCanvas {
        width: 100vw !important;
        height: 100vh !important;
        max-width: none !important;
        max-height: none !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        margin: 0 !important;
        padding: 0 !important;
        border: none !important;
        display: block !important;
        z-index: 1 !important;
        pointer-events: auto !important;
    }
    
    .game-header {
        padding: 10px 15px;
    }
    
    .katana-k {
        width: 30px;
        height: 30px;
        font-size: 24px;
    }
    
    .game-title {
        font-size: 16px;
    }
    
    .score-display {
        font-size: 18px;
    }
    
    .screen h1 {
        font-size: 28px;
    }
    
    .screen-content {
        padding: 20px;
    }
    
    .instructions {
        font-size: 11px;
        bottom: 10px;
    }
}

@media (max-width: 480px) {
    html {
        width: 100%;
        height: 100%;
        height: 100dvh;
        overflow: hidden;
        -webkit-text-size-adjust: none;
        -webkit-user-select: none;
        -webkit-touch-callout: none;
    }
    
    body {
        height: 100vh;
        height: 100dvh;
        width: 100vw;
        margin: 0;
        padding: 0;
        position: fixed;
        top: 0;
        left: 0;
        overflow: hidden;
        -webkit-overflow-scrolling: touch;
    }
    
    .game-container {
        height: 100vh;
        height: 100dvh;
        width: 100vw;
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 0;
        left: 0;
        overflow: hidden;
    }
    
    .game-header {
        flex-shrink: 0;
        padding: 8px 12px;
        position: relative;
        z-index: 100;
    }
    
    #gameCanvas {
        flex: 1;
        width: 100vw;
        height: auto;
        min-height: 0;
        touch-action: manipulation;
    }
    
    .screen h1 {
        font-size: 24px;
    }
    
    .game-btn {
        padding: 10px 20px;
        font-size: 14px;
        height: 44px; /* Ensure consistent height on mobile */
        display: inline-flex;
        align-items: center;
        justify-content: center;
        box-sizing: border-box;
    }
    
    .tagline {
        font-size: 14px;
    }
    
    .preview-char {
        width: 60px;
        height: 60px;
    }
}

/* Performance optimizations */
#gameCanvas {
    will-change: transform;
}

.screen {
    will-change: opacity;
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .preview-char {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Debug Menu Styles */
.debug-menu {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 350px;
    max-height: 80vh;
    background: rgba(16, 22, 49, 0.95);
    border: 2px solid var(--katana-blue);
    border-radius: 8px;
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 0 30px rgba(75, 187, 240, 0.3);
    overflow: hidden;
    font-family: 'Courier New', monospace;
}

.debug-menu.hidden {
    display: none;
}

.debug-header {
    background: var(--katana-navy);
    padding: 15px 20px;
    border-bottom: 1px solid var(--katana-blue);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.debug-header h2 {
    margin: 0;
    color: var(--katana-yellow);
    font-size: 18px;
    font-weight: bold;
}

.debug-close {
    background: none;
    border: none;
    color: var(--katana-blue);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.debug-close:hover {
    background: var(--katana-blue);
    color: var(--katana-navy);
}

.debug-content {
    max-height: calc(80vh - 70px);
    overflow-y: auto;
    padding: 20px;
}

.debug-content::-webkit-scrollbar {
    width: 8px;
}

.debug-content::-webkit-scrollbar-track {
    background: var(--katana-navy);
}

.debug-content::-webkit-scrollbar-thumb {
    background: var(--katana-blue);
    border-radius: 4px;
}

.debug-section {
    margin-bottom: 25px;
    border-bottom: 1px solid var(--katana-light);
    padding-bottom: 20px;
}

.debug-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.debug-section h3 {
    color: var(--katana-yellow);
    font-size: 16px;
    margin: 0 0 15px 0;
    padding-bottom: 5px;
    border-bottom: 1px solid rgba(246, 255, 13, 0.2);
}

.debug-control {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
    gap: 15px;
}

.debug-control label {
    color: var(--katana-blue);
    font-size: 14px;
    min-width: 120px;
    flex-shrink: 0;
}

.debug-control input[type="range"] {
    flex: 1;
    height: 6px;
    background: var(--katana-light);
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
}

.debug-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--katana-yellow);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 5px rgba(246, 255, 13, 0.5);
}

.debug-control input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--katana-yellow);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 0 5px rgba(246, 255, 13, 0.5);
}

.debug-value {
    color: var(--katana-yellow);
    font-weight: bold;
    min-width: 40px;
    text-align: right;
    font-size: 12px;
}

.debug-checkbox {
    width: 18px;
    height: 18px;
    accent-color: var(--katana-yellow);
    cursor: pointer;
}

.debug-toggle {
    color: var(--katana-blue);
    font-weight: bold;
    min-width: 60px;
    text-align: right;
    font-size: 12px;
}

.debug-select {
    flex: 1;
    background: var(--katana-light);
    color: var(--katana-yellow);
    border: 1px solid var(--katana-blue);
    border-radius: 4px;
    padding: 6px 10px;
    font-family: inherit;
    font-size: 12px;
    cursor: pointer;
}

.debug-select:focus {
    outline: none;
    border-color: var(--katana-yellow);
    box-shadow: 0 0 5px rgba(246, 255, 13, 0.3);
}

.debug-select option {
    background: var(--katana-navy);
    color: var(--katana-yellow);
}

.debug-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.debug-btn {
    background: var(--katana-blue);
    color: var(--katana-navy);
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    font-family: inherit;
    font-size: 14px;
    transition: all 0.2s ease;
}

.debug-btn:hover {
    background: var(--katana-yellow);
    transform: translateY(-1px);
}

.debug-btn.secondary {
    background: transparent;
    color: var(--katana-blue);
    border: 1px solid var(--katana-blue);
}

.debug-btn.secondary:hover {
    background: var(--katana-blue);
    color: var(--katana-navy);
}

.debug-stats {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stat {
    color: var(--katana-blue);
    font-size: 14px;
    display: flex;
    justify-content: space-between;
}

.stat span {
    color: var(--katana-yellow);
    font-weight: bold;
}

/* Mobile Debug Menu */
@media (max-width: 768px) {
    .debug-menu {
        top: 10px;
        right: 10px;
        left: 10px;
        width: auto;
        max-height: 70vh;
    }
    
    .debug-header {
        padding: 10px 15px;
    }
    
    .debug-content {
        padding: 15px;
        max-height: calc(70vh - 60px);
    }
    
    .debug-control {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }
    
    .debug-control label {
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .debug-menu {
        top: 5px;
        right: 5px;
        left: 5px;
    }
    
    .debug-header h2 {
        font-size: 16px;
    }
}

/* Community Stats Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--katana-navy);
    border: 2px solid var(--katana-blue);
    border-radius: 12px;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 0 30px var(--glow-color);
}

.modal-header {
    background: var(--katana-light);
    padding: 20px;
    border-bottom: 1px solid var(--katana-blue);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    color: var(--katana-yellow);
    font-size: 20px;
    margin: 0;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--katana-blue);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: var(--katana-blue);
    color: var(--katana-navy);
}

.stats-content {
    padding: 20px;
}

.loading-stats {
    text-align: center;
    padding: 40px 20px;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--katana-light);
    border-top: 3px solid var(--katana-yellow);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.stat-item {
    background: var(--katana-light);
    border: 1px solid var(--katana-blue);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-item:hover {
    border-color: var(--katana-yellow);
    box-shadow: 0 4px 15px rgba(246, 255, 13, 0.2);
}

.stat-icon {
    font-size: 32px;
    margin-bottom: 10px;
}

.stat-label {
    color: var(--katana-blue);
    font-size: 14px;
    margin-bottom: 8px;
    font-weight: bold;
}

.stat-value {
    color: var(--katana-yellow);
    font-size: 24px;
    font-weight: bold;
    font-family: 'Courier New', monospace;
}

.stats-footer {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--katana-light);
}

.stats-footer p {
    color: var(--katana-blue);
    font-size: 12px;
    opacity: 0.8;
}

/* Mobile Modal Styles */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 10px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .stat-item {
        padding: 15px;
    }
    
    .stat-icon {
        font-size: 24px;
    }
    
    .stat-value {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .modal-header h2 {
        font-size: 16px;
    }
}