/* Unified Game UI Styles */
/* 统一游戏UI样式，解决屏幕空间利用率和一致性问题 */

/* Base Game Overlay Styles */
.game-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3000;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-sizing: border-box;
}

.game-overlay.show {
    display: flex;
}

/* Game Container */
.game-content {
    background: white;
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    max-width: 90vw;
    max-height: 90vh;
    overflow: hidden;
    box-sizing: border-box;
}

/* Game Header */
.game-header {
    text-align: center;
    margin-bottom: 20px;
}

.game-title {
    font-weight: bold;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    margin-bottom: 10px;
    transition: font-size 0.3s ease;
}

.game-title.title-desktop {
    font-size: 28px;
}

.game-title.title-mobile {
    font-size: 24px;
}

.game-title.title-small-mobile {
    font-size: 20px;
}

.game-stats {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    transition: font-size 0.3s ease;
}

/* Game Container */
.game-container {
    background: white;
    border-radius: 12px;
    padding: 15px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Game Elements */
[data-game-element],
.game-canvas,
.puzzle-grid,
.maze-canvas {
    display: block;
    border-radius: 8px;
    transition: all 0.3s ease;
    max-width: 100%;
    height: auto;
}

/* Responsive Game Sizes */
.game-desktop [data-game-element],
.game-desktop .game-canvas,
.game-desktop .puzzle-grid,
.game-desktop .maze-canvas {
    /* Desktop: larger sizes */
}

.game-mobile [data-game-element],
.game-mobile .game-canvas,
.game-mobile .puzzle-grid,
.game-mobile .maze-canvas {
    /* Mobile: optimized sizes */
    max-width: 100%;
    max-height: 70vh;
}

.game-small-mobile [data-game-element],
.game-small-mobile .game-canvas,
.game-small-mobile .puzzle-grid,
.game-small-mobile .maze-canvas {
    /* Small Mobile: compact sizes */
    max-width: 280px;
    max-height: 280px;
}

/* Game Buttons */
.game-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
    gap: 20px;
    transition: all 0.3s ease;
}

.game-buttons.buttons-desktop {
    flex-direction: row;
    gap: 20px;
}

.game-buttons.buttons-mobile {
    flex-direction: row;
    gap: 15px;
}

.game-buttons.buttons-small-mobile {
    flex-direction: column;
    gap: 10px;
}

.game-button {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 120px;
}

.game-button.buttons-small-mobile {
    width: 100%;
    max-width: 200px;
}

/* Puzzle Game Specific Styles */
.puzzle-game-overlay {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

.puzzle-grid {
    display: grid;
    gap: 4px;
    width: var(--puzzle-grid-size, 280px);
    height: var(--puzzle-grid-size, 280px);
    margin: 0 auto;
}

.puzzle-grid.size-3 {
    grid-template-columns: repeat(3, 1fr);
    width: var(--puzzle-grid-size, 360px);
    height: var(--puzzle-grid-size, 360px);
}

.puzzle-tile {
    width: var(--puzzle-tile-size, 93px);
    height: var(--puzzle-tile-size, 93px);
    background-size: var(--puzzle-grid-size, 280px) var(--puzzle-grid-size, 280px);
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.15s ease;
    border: 2px solid #e9ecef;
    box-sizing: border-box;
}

.puzzle-grid.size-3 .puzzle-tile {
    width: var(--puzzle-tile-size, 120px);
    height: var(--puzzle-tile-size, 120px);
    background-size: var(--puzzle-grid-size, 360px) var(--puzzle-grid-size, 360px);
}

/* Maze Game Specific Styles */
.maze-game-overlay {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

.maze-canvas {
    touch-action: none;
    width: var(--maze-canvas-size, 280px);
    height: var(--maze-canvas-size, 280px);
}

/* Responsive Media Queries */
@media (max-width: 768px) {
    .game-overlay {
        padding: 15px;
    }
    
    .game-content {
        padding: 15px;
        border-radius: 12px;
    }
    
    .game-header {
        margin-bottom: 15px;
    }
    
    .game-container {
        padding: 10px;
    }
    
    .game-buttons {
        margin-top: 15px;
    }
    
    .game-button {
        padding: 10px 20px;
        font-size: 14px;
        min-width: 100px;
    }
}

@media (max-width: 480px) {
    .game-overlay {
        padding: 10px;
    }
    
    .game-content {
        padding: 10px;
        border-radius: 8px;
    }
    
    .game-header {
        margin-bottom: 10px;
    }
    
    .game-container {
        padding: 8px;
    }
    
    .game-buttons {
        margin-top: 10px;
    }
    
    .game-button {
        padding: 8px 16px;
        font-size: 13px;
        min-width: 80px;
    }
}

@media (max-width: 360px) {
    .game-overlay {
        padding: 8px;
    }
    
    .game-content {
        padding: 8px;
        border-radius: 6px;
    }
    
    .game-header {
        margin-bottom: 8px;
    }
    
    .game-container {
        padding: 6px;
    }
    
    .game-buttons {
        margin-top: 8px;
    }
    
    .game-button {
        padding: 6px 12px;
        font-size: 12px;
        min-width: 60px;
    }
}

/* CSS Variables for Dynamic Sizing */
:root {
    --game-width: 280px;
    --game-height: 280px;
    --game-scale: 1;
    --is-mobile: 0;
    --is-small-mobile: 0;
    
    /* Puzzle specific */
    --puzzle-grid-size: 280px;
    --puzzle-tile-size: 93px;
    
    /* Maze specific */
    --maze-canvas-size: 280px;
    --maze-cell-size: 31px;
}

/* Responsive adjustments based on CSS variables */
@media (max-width: 768px) {
    :root {
        --game-scale: 0.9;
    }
}

@media (max-width: 480px) {
    :root {
        --game-scale: 0.8;
    }
}

@media (max-width: 360px) {
    :root {
        --game-scale: 0.7;
        --puzzle-grid-size: 280px;
        --puzzle-tile-size: 93px;
        --maze-canvas-size: 280px;
        --maze-cell-size: 31px;
    }
}

/* Animation Classes */
.game-resize-animation {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.game-scale-animation {
    animation: gameScale 0.3s ease-out;
}

@keyframes gameScale {
    0% {
        transform: scale(0.9);
        opacity: 0.8;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Utility Classes */
.game-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.game-full-width {
    width: 100%;
}

.game-responsive {
    max-width: 100%;
    height: auto;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .game-content {
        background: #2c3e50;
        color: white;
    }
    
    .game-container {
        background: #34495e;
    }
}

/* Tank Battle Game Styles */
.tank-battle-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3000;
    background: rgba(0, 0, 0, 0.8);
    justify-content: center;
    align-items: center;
}

.tank-battle-overlay.show {
    display: flex;
}

.tank-battle-container {
    background: white;
    border-radius: 16px;
    padding: 20px;
    width: 340px;
    max-width: 90vw;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* ==============================================
   Unified Game Controls (shared touch keyboard)
   ============================================== */
.ugc-container {
    margin-top: 18px;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
    color: #0f172a;
}

.ugc-controls {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 20px;
}

.ugc-btn {
    width: 68px;
    height: 68px;
    border-radius: 18px;
    border: none;
    font-size: 26px;
    font-weight: 600;
    background: linear-gradient(145deg, #f8fafc, #e2e8f0);
    box-shadow: inset 0 2px 4px rgba(255, 255, 255, 0.8), 0 8px 14px rgba(15, 23, 42, 0.12);
    color: #0f172a;
    transition: transform 0.1s ease, box-shadow 0.1s ease;
    touch-action: manipulation;
}

.ugc-btn:active,
.ugc-btn[data-pressed="true"] {
    transform: translateY(2px);
    box-shadow: inset 0 1px 3px rgba(15, 23, 42, 0.2), 0 2px 4px rgba(15, 23, 42, 0.08);
}

.ugc-dpad-fire {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 28px;
}

.ugc-dpad {
    display: grid;
    grid-template-columns: repeat(3, 68px);
    grid-template-rows: repeat(3, 68px);
    gap: 12px;
}

.ugc-dpad .ugc-btn-up {
    grid-column: 2 / 3;
}

.ugc-dpad .ugc-btn-left {
    grid-column: 1 / 2;
    grid-row: 2 / 3;
}

.ugc-dpad .ugc-btn-right {
    grid-column: 3 / 4;
    grid-row: 2 / 3;
}

.ugc-dpad .ugc-btn-down {
    grid-column: 2 / 3;
    grid-row: 3 / 4;
}

.ugc-dpad .ugc-spacer {
    width: 68px;
    height: 68px;
}

.ugc-fire-column {
    display: flex;
    flex-direction: column;
    gap: 12px;
    justify-content: center;
}

.ugc-fire-column .ugc-btn-fire {
    width: 88px;
    height: 88px;
    font-size: 30px;
    border-radius: 50%;
    background: linear-gradient(150deg, #ffedd5, #fdba74);
    box-shadow: inset 0 2px 4px rgba(255, 255, 255, 0.7), 0 10px 20px rgba(249, 115, 22, 0.25);
}

.ugc-lr-fire {
    display: flex;
    gap: 16px;
    align-items: center;
}

.ugc-lr-fire .ugc-btn-fire {
    width: 82px;
    height: 82px;
    border-radius: 24px;
}

.ugc-hints {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 14px;
    color: #475569;
    text-align: center;
    line-height: 1.4;
}

.ugc-hints li + li {
    margin-top: 4px;
}

@media (max-width: 768px) {
    .ugc-controls {
        gap: 16px;
    }

    .ugc-btn,
    .ugc-dpad {
        width: 64px;
        height: 64px;
        grid-template-columns: repeat(3, 64px);
        grid-template-rows: repeat(3, 64px);
    }

    .ugc-fire-column .ugc-btn-fire,
    .ugc-lr-fire .ugc-btn-fire {
        width: 76px;
        height: 76px;
    }
}

@media (max-width: 480px) {
    .ugc-controls {
        flex-direction: column;
        align-items: center;
    }

    .ugc-btn,
    .ugc-dpad {
        width: 58px;
        height: 58px;
        grid-template-columns: repeat(3, 58px);
        grid-template-rows: repeat(3, 58px);
    }

    .ugc-fire-column .ugc-btn-fire,
    .ugc-lr-fire .ugc-btn-fire {
        width: 70px;
        height: 70px;
    }
}

.tank-battle-header {
    margin-bottom: 15px;
}

.tank-battle-title {
    font-size: 24px;
    font-weight: bold;
    color: #333;
    margin-bottom: 10px;
}

.tank-battle-stats {
    font-size: 18px;
    color: #666;
    margin-bottom: 10px;
}

.tank-battle-canvas {
    border: 2px solid #333;
    background: #7CB342;
    max-width: 100%;
    height: auto;
}

.tank-controls {
    display: grid;
    grid-template-columns: repeat(3, 60px);
    grid-template-rows: repeat(4, 60px);
    gap: 5px;
    justify-content: center;
    margin-top: 15px;
}

.tank-control-btn {
    background: #f0f0f0;
    border: 2px solid #ccc;
    border-radius: 8px;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tank-control-btn:hover {
    background: #e0e0e0;
    transform: scale(1.05);
}

.tank-control-btn:active {
    background: #4CAF50;
    color: white;
    transform: scale(0.95);
}

.tank-control-btn.empty {
    visibility: hidden;
    cursor: default;
}

.tank-control-btn.empty:hover {
    background: #f0f0f0;
    transform: none;
}

.tank-battle-complete-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    display: none;
    z-index: 3100;
}

.tank-battle-complete-message.show {
    display: block;
}

.tank-battle-complete-message h2 {
    margin: 0 0 10px 0;
    color: #4CAF50;
}

.tank-battle-complete-message p {
    margin: 0 0 15px 0;
    font-size: 18px;
}

.tank-battle-complete-message button {
    background: #4CAF50;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}

.tank-battle-complete-message button:hover {
    background: #45a049;
}

.snake-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3000;
    background: rgba(5, 5, 10, 0.9);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-sizing: border-box;
}

.snake-overlay.show {
    display: flex;
}

.snake-header {
    text-align: center;
    color: #76FF03;
    margin-bottom: 10px;
    text-shadow: 0 0 10px rgba(118, 255, 3, 0.6);
}

.snake-title {
    font-size: 26px;
    font-weight: 700;
}

.snake-stats {
    font-size: 18px;
    color: #E0E0E0;
}

.snake-container {
    background: #0b0b0f;
    padding: 15px;
    border-radius: 16px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}

.snake-canvas {
    border: 2px solid rgba(118, 255, 3, 0.5);
    border-radius: 12px;
    max-width: 90vw;
    max-height: 60vh;
}

.snake-hint {
    margin-top: 12px;
    color: #B3E5FC;
    font-size: 14px;
    text-align: center;
}

.snake-touch-controls {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.snake-touch-row {
    display: flex;
    gap: 12px;
}

.snake-touch-btn {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.08);
    color: #FFF;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(6px);
    transition: transform 0.15s ease, background 0.15s ease;
}

.snake-touch-btn:active {
    transform: scale(0.95);
    background: rgba(118, 255, 3, 0.3);
}

.snake-touch-btn.empty {
    visibility: hidden;
}

.snake-buttons {
    margin-top: 18px;
    display: flex;
    gap: 12px;
}

.snake-button {
    padding: 10px 20px;
    border-radius: 999px;
    border: none;
    font-size: 16px;
    cursor: pointer;
    transition: transform 0.15s ease;
}

.snake-button-reset {
    background: linear-gradient(135deg, #00C853, #B2FF59);
    color: #0b0b0f;
}

.snake-button-continue {
    background: rgba(255, 255, 255, 0.1);
    color: #FFF;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.snake-button:hover {
    transform: translateY(-2px);
}

.snake-complete-message {
    margin-top: 12px;
    color: #FFF;
    font-size: 18px;
    display: none;
}

.snake-complete-message.show {
    display: block;
}

/* Mobile optimizations */
@media (max-width: 768px) {
    .tank-battle-container {
        padding: 15px;
        margin: 10px;
    }
    
    .tank-battle-title {
        font-size: 20px;
    }
    
    .tank-battle-stats {
        font-size: 16px;
    }
    
    .tank-controls {
        grid-template-columns: repeat(3, 50px);
        grid-template-rows: repeat(4, 50px);
        gap: 3px;
    }
    
    .tank-control-btn {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .tank-battle-container {
        padding: 10px;
        margin: 5px;
    }
    
    .tank-battle-title {
        font-size: 18px;
    }
    
    .tank-battle-stats {
        font-size: 14px;
    }
    
    .tank-controls {
        grid-template-columns: repeat(3, 45px);
        grid-template-rows: repeat(4, 45px);
        gap: 2px;
    }
    
    .tank-control-btn {
        font-size: 16px;
    }
}