/* Drawing Game Plugin - Fixed Styles (フルスクリーン・可読性修正版) */
/* すべてのスタイルを .drawing-game-wrapper 内に限定 */

.drawing-game-wrapper {
    /* ラッパー内でのリセット */
    font-family: 'Arial', sans-serif;
    line-height: 1.4;
    color: #333;
    background: transparent;
    position: relative;
    z-index: 1;
}

.drawing-game-wrapper *,
.drawing-game-wrapper *::before,
.drawing-game-wrapper *::after {
    box-sizing: border-box;
}

.drawing-game-wrapper .drawing-game-container {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 600px;
    overflow: hidden;
    border-radius: 10px;
    position: relative;
    margin: 20px 0;
    font-family: 'Arial', sans-serif;
    display: flex;
    flex-direction: column;
}

.drawing-game-wrapper .container {
    display: flex;
    flex: 1;
    min-height: 600px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

/* フルスクリーン表示時の修正されたスタイル */
.drawing-game-wrapper .container.fullscreen {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    z-index: 999999 !important;
    background: #1a1a1a !important;
    border-radius: 0 !important;
    margin: 0 !important;
    flex-direction: column !important;
}

/* フルスクリーン時のサイドバーを完全に非表示 */
.drawing-game-wrapper .container.fullscreen .sidebar {
    display: none !important;
}

/* フルスクリーン時のメインコンテンツ */
.drawing-game-wrapper .container.fullscreen .main-content {
    flex: 1 !important;
    width: 100% !important;
    height: 100% !important;
    display: flex !important;
    flex-direction: column !important;
}

/* フルスクリーン時のトップツールバー */
.drawing-game-wrapper .container.fullscreen .top-toolbar {
    background: rgba(0, 0, 0, 0.8) !important;
    padding: 10px 20px !important;
    flex-shrink: 0 !important;
    position: relative !important;
    z-index: 1000 !important;
}

/* フルスクリーン時の描画エリア */
.drawing-game-wrapper .container.fullscreen .drawing-area {
    flex: 1 !important;
    display: flex !important;
    width: 100% !important;
    height: calc(100vh - 60px) !important; /* ツールバーの高さを考慮 */
    position: relative !important;
}

/* フルスクリーン時のキャンバスコンテナ */
.drawing-game-wrapper .container.fullscreen .canvas-container {
    flex: 1 !important;
    width: 100% !important;
    height: 100% !important;
    margin: 0 !important;
    border-radius: 0 !important;
    position: relative !important;
}

/* フルスクリーン時は動画コンテナを非表示 */
.drawing-game-wrapper .container.fullscreen .video-container {
    display: none !important;
}

/* フルスクリーン時のキャンバス */
.drawing-game-wrapper .container.fullscreen .drawing-canvas {
    width: 100% !important;
    height: 100% !important;
    display: block !important;
}

/* フルスクリーン時のステータスバーを非表示 */
.drawing-game-wrapper .container.fullscreen .status-bar {
    display: none !important;
}

/* フルスクリーン時のクイックツールバー */
.drawing-game-wrapper .container.fullscreen .quick-toolbar {
    position: fixed !important;
    top: 50% !important;
    right: 20px !important;
    transform: translateY(-50%) !important;
    background: rgba(0, 0, 0, 0.9) !important;
    padding: 15px !important;
    border-radius: 10px !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 10px !important;
    z-index: 1001 !important;
    border: 2px solid rgba(255, 255, 255, 0.2) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5) !important;
}

/* 通常時のサイドバー（可読性改善） */
.drawing-game-wrapper .sidebar {
    width: 280px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    padding: 20px;
    box-shadow: 2px 0 20px rgba(0, 0, 0, 0.1);
    overflow-y: auto;
    transition: all 0.3s ease;
    position: relative;
    flex-shrink: 0;
    color: #000000; /* 文字を黒に */
}

/* サイドバー内のすべてのテキスト要素を強制的に黒に */
.drawing-game-wrapper .sidebar,
.drawing-game-wrapper .sidebar *,
.drawing-game-wrapper .sidebar h1,
.drawing-game-wrapper .sidebar h2,
.drawing-game-wrapper .sidebar h3,
.drawing-game-wrapper .sidebar h4,
.drawing-game-wrapper .sidebar h5,
.drawing-game-wrapper .sidebar h6,
.drawing-game-wrapper .sidebar p,
.drawing-game-wrapper .sidebar span,
.drawing-game-wrapper .sidebar div,
.drawing-game-wrapper .sidebar label {
    color: #000000 !important;
}

/* メインコンテンツ */
.drawing-game-wrapper .main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #2a2a2a;
    position: relative;
    min-width: 0;
    min-height: 560px;
}

.drawing-game-wrapper .top-toolbar {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(10px);
    flex-shrink: 0;
}

.drawing-game-wrapper .top-toolbar h1 {
    color: white;
    font-size: 24px;
    margin: 0;
    font-weight: bold;
}

.drawing-game-wrapper .top-toolbar button {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    margin-left: 10px;
    transition: all 0.2s ease;
    font-size: 14px;
}

.drawing-game-wrapper .top-toolbar button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.drawing-game-wrapper .top-toolbar button.fullscreen-btn {
    background: rgba(255, 255, 255, 0.3);
}

.drawing-game-wrapper .top-toolbar button.fullscreen-btn:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* 描画エリア */
.drawing-game-wrapper .drawing-area {
    flex: 1;
    display: flex;
    position: relative;
    min-height: 400px;
}

.drawing-game-wrapper .canvas-container {
    flex: 1;
    position: relative;
    background: #fff;
    margin: 20px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    min-width: 300px;
    min-height: 300px;
}

.drawing-game-wrapper .video-container {
    width: 400px;
    background: #000;
    margin: 20px 20px 20px 0;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    display: none;
    flex-direction: column;
    flex-shrink: 0;
}

.drawing-game-wrapper .video-container.active {
    display: flex;
}

/* キャンバス */
.drawing-game-wrapper .drawing-canvas {
    display: block;
    cursor: crosshair;
    width: 100%;
    height: 100%;
    border: none;
    outline: none;
    max-width: 100%;
    max-height: 100%;
}

/* 動画選択UI */
.drawing-game-wrapper .video-selector {
    background: rgba(255, 255, 255, 0.9);
    padding: 15px;
    border-bottom: 1px solid #ddd;
    max-height: 200px;
    overflow-y: auto;
    flex-shrink: 0;
}

.drawing-game-wrapper .video-selector h4 {
    margin: 0 0 10px 0;
    color: #333;
    font-size: 14px;
    font-weight: bold;
}

.drawing-game-wrapper .video-search {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin-bottom: 10px;
    font-size: 12px;
    outline: none;
}

.drawing-game-wrapper .video-search:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.2);
}

.drawing-game-wrapper .video-list {
    max-height: 120px;
    overflow-y: auto;
}

.drawing-game-wrapper .video-item {
    display: flex;
    align-items: center;
    padding: 8px;
    margin-bottom: 5px;
    background: #f9f9f9;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.drawing-game-wrapper .video-item:hover {
    background: #e9e9e9;
    border-color: #ddd;
}

.drawing-game-wrapper .video-item.active {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

.drawing-game-wrapper .video-thumbnail {
    width: 60px;
    height: 45px;
    object-fit: cover;
    border-radius: 3px;
    margin-right: 10px;
    border: 1px solid #ddd;
    flex-shrink: 0;
}

.drawing-game-wrapper .video-info {
    flex: 1;
    min-width: 0;
}

.drawing-game-wrapper .video-title {
    font-size: 12px;
    font-weight: bold;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.drawing-game-wrapper .video-duration {
    font-size: 10px;
    opacity: 0.7;
}

/* YouTube プレーヤーコンテナ */
.drawing-game-wrapper .youtube-player-container {
    flex: 1;
    position: relative;
    min-height: 200px;
}

.drawing-game-wrapper .youtube-player {
    width: 100%;
    height: 100%;
    min-height: 200px;
    border: none;
}

/* カラーパレット */
.drawing-game-wrapper .color-palette {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    margin-bottom: 20px;
}

.drawing-game-wrapper .color-btn {
    width: 40px;
    height: 40px;
    border: 3px solid #fff;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    background-color: #000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.drawing-game-wrapper .color-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.drawing-game-wrapper .color-btn.active {
    border-color: #2c3e50;
    border-width: 4px;
    transform: scale(1.2);
}

/* クイックツールバー（フルスクリーン時用） */
.drawing-game-wrapper .quick-toolbar {
    display: none;
}

.drawing-game-wrapper .quick-toolbar .quick-color {
    width: 30px;
    height: 30px;
    border: 2px solid #fff;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.drawing-game-wrapper .quick-toolbar .quick-color:hover {
    transform: scale(1.1);
}

.drawing-game-wrapper .quick-toolbar .quick-color.active {
    border-color: #ffd700;
    border-width: 3px;
}

.drawing-game-wrapper .quick-toolbar .quick-tool {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 8px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s ease;
    width: 100%;
    font-weight: bold;
}

.drawing-game-wrapper .quick-toolbar .quick-tool:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

/* ツールセクション（可読性改善） */
.drawing-game-wrapper .tool-section {
    margin-bottom: 25px;
    background: rgba(248, 249, 250, 0.98);
    padding: 15px;
    border-radius: 8px;
    border: 1px solid rgba(206, 212, 218, 0.5);
}

.drawing-game-wrapper .tool-section h3 {
    color: #000000; /* 黒文字 */
    margin: 0 0 15px 0;
    font-size: 16px;
    font-weight: bold;
    text-shadow: none;
}

.drawing-game-wrapper .tool-btn {
    display: block;
    width: 100%;
    padding: 12px;
    margin-bottom: 8px;
    background: linear-gradient(45deg, #4a6741, #5a7c50);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s ease;
    text-align: center;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.drawing-game-wrapper .tool-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    background: linear-gradient(45deg, #5a7c50, #6a8c60);
}

.drawing-game-wrapper .tool-btn.active {
    background: linear-gradient(45deg, #6a8c60, #4a6741);
    transform: scale(0.95);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* スライダー */
.drawing-game-wrapper .slider-container {
    margin-bottom: 15px;
}

.drawing-game-wrapper .slider-container label {
    display: block;
    margin-bottom: 8px;
    color: #2c3e50;
    font-size: 14px;
    font-weight: 600;
}

.drawing-game-wrapper .slider {
    width: 100%;
    height: 6px;
    border-radius: 5px;
    background: #ddd;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.drawing-game-wrapper .slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #4a6741;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.drawing-game-wrapper .slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #4a6741;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* レイヤー */
.drawing-game-wrapper .layers-container {
    max-height: 200px;
    overflow-y: auto;
}

.drawing-game-wrapper .layer-item {
    display: flex;
    align-items: center;
    padding: 8px;
    background: #ffffff;
    margin-bottom: 5px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid #dee2e6;
    color: #2c3e50;
}

.drawing-game-wrapper .layer-item:hover {
    background: #e9ecef;
    border-color: #adb5bd;
}

.drawing-game-wrapper .layer-item.active {
    background: #4a6741;
    color: white;
    border-color: #4a6741;
}

.drawing-game-wrapper .layer-preview {
    width: 30px;
    height: 30px;
    border: 1px solid #ccc;
    margin-right: 10px;
    border-radius: 3px;
    background: #fff;
    flex-shrink: 0;
}

/* YouTube設定 */
.drawing-game-wrapper .youtube-container {
    margin-bottom: 20px;
}

.drawing-game-wrapper .youtube-input {
    width: 100%;
    padding: 10px;
    border: 2px solid #dee2e6;
    border-radius: 5px;
    margin-bottom: 10px;
    font-size: 14px;
    outline: none;
    color: #2c3e50;
    background: white;
}

.drawing-game-wrapper .youtube-input:focus {
    border-color: #4a6741;
    box-shadow: 0 0 0 2px rgba(74, 103, 65, 0.2);
}

/* カスタムカラー入力 */
.drawing-game-wrapper .custom-color {
    width: 100%;
    height: 40px;
    border: 2px solid #dee2e6;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 5px;
    background: white;
}

.drawing-game-wrapper .custom-color:focus {
    border-color: #4a6741;
    outline: none;
}

/* プレイリスト選択 */
.drawing-game-wrapper .playlist-selector {
    margin-bottom: 15px;
}

.drawing-game-wrapper .playlist-dropdown {
    width: 100%;
    padding: 8px;
    border: 2px solid #dee2e6;
    border-radius: 5px;
    font-size: 14px;
    background: white;
    outline: none;
    color: #2c3e50;
}

.drawing-game-wrapper .playlist-dropdown:focus {
    border-color: #4a6741;
    box-shadow: 0 0 0 2px rgba(74, 103, 65, 0.2);
}

/* ステータスバー */
.drawing-game-wrapper .status-bar {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    padding: 10px 20px;
    font-size: 12px;
    display: flex;
    justify-content: space-between;
    flex-shrink: 0;
}

/* サイドバー内のテキスト要素 */
.drawing-game-wrapper .sidebar p {
    color: #2c3e50;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.9);
    padding: 8px 12px;
    border-radius: 4px;
    border: 1px solid #dee2e6;
    margin: 8px 0;
}

.drawing-game-wrapper .sidebar .current-tool,
.drawing-game-wrapper .sidebar .current-layer,
.drawing-game-wrapper .sidebar .brush-size-value,
.drawing-game-wrapper .sidebar .opacity-value {
    color: #4a6741;
    font-weight: bold;
}

/* スライダーコンテナ内のラベル */
.drawing-game-wrapper .slider-container label {
    display: block;
    margin-bottom: 8px;
    color: #2c3e50;
    font-size: 14px;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.9);
    padding: 6px 10px;
    border-radius: 4px;
    border: 1px solid #dee2e6;
}

/* ユーティリティ */
.drawing-game-wrapper .hidden {
    display: none !important;
}

/* ローディング */
.drawing-game-wrapper .loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 18px;
    z-index: 10;
}

.drawing-game-wrapper .loading:after {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: drawing-game-spin 1s ease-in-out infinite;
    margin-left: 10px;
}

@keyframes drawing-game-spin {
    to { transform: rotate(360deg); }
}

/* エラー表示 */
.drawing-game-wrapper .error-message {
    background: rgba(220, 53, 69, 0.9);
    color: white;
    padding: 10px;
    border-radius: 5px;
    margin: 10px;
    font-size: 14px;
    display: none;
}

.drawing-game-wrapper .error-message.show {
    display: block;
}

/* bodyクラスでテーマサイドバーを非表示にする */
body.drawing-game-fullscreen {
    overflow: hidden !important;
}

body.drawing-game-fullscreen #sidebar,
body.drawing-game-fullscreen .sidebar,
body.drawing-game-fullscreen #secondary,
body.drawing-game-fullscreen .widget-area,
body.drawing-game-fullscreen .site-header,
body.drawing-game-fullscreen .site-footer,
body.drawing-game-fullscreen .main-navigation,
body.drawing-game-fullscreen .entry-header,
body.drawing-game-fullscreen .entry-footer,
body.drawing-game-fullscreen .comments-area,
body.drawing-game-fullscreen .related-posts,
body.drawing-game-fullscreen .author-box,
body.drawing-game-fullscreen .breadcrumbs,
body.drawing-game-fullscreen .pagination {
    display: none !important;
}

/* Cocoonテーマ特有の要素を非表示 */
body.drawing-game-fullscreen .sidebar-scroll,
body.drawing-game-fullscreen .widget-entry-cards,
body.drawing-game-fullscreen .widget-popular-entries,
body.drawing-game-fullscreen .widget-new-entries,
body.drawing-game-fullscreen .ad-area,
body.drawing-game-fullscreen .navi,
body.drawing-game-fullscreen .header-container,
body.drawing-game-fullscreen .footer-container {
    display: none !important;
}

/* レスポンシブ対応 */
@media (max-width: 1024px) {
    .drawing-game-wrapper .container:not(.fullscreen) {
        flex-direction: column;
    }

    .drawing-game-wrapper .container:not(.fullscreen) .sidebar {
        width: 100%;
        height: auto;
        order: 2;
        max-height: 300px;
        padding: 15px;
    }

    .drawing-game-wrapper .container:not(.fullscreen) .main-content {
        order: 1;
        min-height: 400px;
    }

    .drawing-game-wrapper .container:not(.fullscreen) .drawing-area {
        flex-direction: column;
    }

    .drawing-game-wrapper .container:not(.fullscreen) .video-container {
        width: 100%;
        height: 250px;
        margin: 10px;
        order: 1;
    }

    .drawing-game-wrapper .container:not(.fullscreen) .canvas-container {
        margin: 10px;
        min-height: 300px;
        order: 2;
    }

    .drawing-game-wrapper .color-palette {
        grid-template-columns: repeat(5, 1fr);
        gap: 6px;
    }

    .drawing-game-wrapper .color-btn {
        width: 35px;
        height: 35px;
    }
}

@media (max-width: 768px) {
    .drawing-game-wrapper .drawing-game-container {
        min-height: 500px;
        margin: 10px 0;
    }

    .drawing-game-wrapper .container:not(.fullscreen) .sidebar {
        padding: 10px;
        max-height: 250px;
    }

    .drawing-game-wrapper .color-palette {
        grid-template-columns: repeat(4, 1fr);
        gap: 5px;
    }

    .drawing-game-wrapper .color-btn {
        width: 30px;
        height: 30px;
    }

    .drawing-game-wrapper .tool-btn {
        padding: 8px;
        font-size: 12px;
        margin-bottom: 5px;
    }

    .drawing-game-wrapper .top-toolbar {
        padding: 10px;
        flex-wrap: wrap;
    }

    .drawing-game-wrapper .top-toolbar h1 {
        font-size: 18px;
        margin-bottom: 5px;
        width: 100%;
    }

    .drawing-game-wrapper .top-toolbar button {
        padding: 6px 12px;
        font-size: 12px;
        margin: 2px;
    }

    .drawing-game-wrapper .container:not(.fullscreen) .canvas-container {
        min-height: 250px;
    }

    .drawing-game-wrapper .container:not(.fullscreen) .video-container {
        height: 200px;
    }
}

@media (max-width: 480px) {
    .drawing-game-wrapper .drawing-game-container {
        min-height: 400px;
        border-radius: 5px;
    }

    .drawing-game-wrapper .container:not(.fullscreen) .sidebar {
        padding: 8px;
    }

    .drawing-game-wrapper .tool-section {
        margin-bottom: 15px;
        padding: 10px;
    }

    .drawing-game-wrapper .tool-section h3 {
        font-size: 14px;
        margin-bottom: 10px;
    }

    .drawing-game-wrapper .color-palette {
        grid-template-columns: repeat(3, 1fr);
    }

    .drawing-game-wrapper .container:not(.fullscreen) .canvas-container {
        min-height: 200px;
        margin: 5px;
    }

    .drawing-game-wrapper .container:not(.fullscreen) .video-container {
        height: 150px;
        margin: 5px;
    }

    .drawing-game-wrapper .video-item {
        padding: 5px;
    }

    .drawing-game-wrapper .video-thumbnail {
        width: 50px;
        height: 38px;
    }
}

/* フォーカススタイル（アクセシビリティ） */
.drawing-game-wrapper .tool-btn:focus,
.drawing-game-wrapper .color-btn:focus,
.drawing-game-wrapper .slider:focus,
.drawing-game-wrapper .youtube-input:focus,
.drawing-game-wrapper .custom-color:focus {
    outline: 2px solid #4a6741;
    outline-offset: 2px;
}

/* 高コントラストモード対応 */
@media (prefers-contrast: high) {
    .drawing-game-wrapper .color-btn {
        border-width: 4px;
    }
    
    .drawing-game-wrapper .tool-btn {
        border: 2px solid #333;
    }
    
    .drawing-game-wrapper .video-item {
        border: 1px solid #333;
    }
}

/* ダークモード対応 */
@media (prefers-color-scheme: dark) {
    .drawing-game-wrapper .sidebar {
        background: rgba(45, 45, 45, 0.98);
        color: #f0f0f0;
    }
    
    .drawing-game-wrapper .tool-section {
        background: rgba(55, 55, 55, 0.8);
    }
    
    .drawing-game-wrapper .tool-section h3 {
        color: #f0f0f0;
    }
    
    .drawing-game-wrapper .slider-container label {
        color: #d0d0d0;
    }
    
    .drawing-game-wrapper .video-selector {
        background: rgba(45, 45, 45, 0.9);
        color: #f0f0f0;
    }
    
    .drawing-game-wrapper .video-item {
        background: #3a3a3a;
        color: #f0f0f0;
    }
    
    .drawing-game-wrapper .video-item:hover {
        background: #4a4a4a;
    }
}

/* アニメーション改善 */
.drawing-game-wrapper .tool-btn,
.drawing-game-wrapper .color-btn,
.drawing-game-wrapper .video-item {
    will-change: transform;
}

/* スクロールバーのスタイリング */
.drawing-game-wrapper .sidebar::-webkit-scrollbar,
.drawing-game-wrapper .video-list::-webkit-scrollbar,
.drawing-game-wrapper .layers-container::-webkit-scrollbar {
    width: 6px;
}

.drawing-game-wrapper .sidebar::-webkit-scrollbar-track,
.drawing-game-wrapper .video-list::-webkit-scrollbar-track,
.drawing-game-wrapper .layers-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.drawing-game-wrapper .sidebar::-webkit-scrollbar-thumb,
.drawing-game-wrapper .video-list::-webkit-scrollbar-thumb,
.drawing-game-wrapper .layers-container::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

.drawing-game-wrapper .sidebar::-webkit-scrollbar-thumb:hover,
.drawing-game-wrapper .video-list::-webkit-scrollbar-thumb:hover,
.drawing-game-wrapper .layers-container::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}

/* フルスクリーン切り替え時のアニメーション */
.drawing-game-wrapper .container {
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.drawing-game-wrapper .container.fullscreen {
    animation: enterFullscreen 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes enterFullscreen {
    0% {
        transform: scale(0.95);
        opacity: 0.8;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}