/* ぱらぱら漫画メーカー - サイドバー形式 CSS v3.0.2 - 完全修正版 */

/* ベースリセット */
.flipbook-maker-container * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* メインコンテナ */
.flipbook-maker-container {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", sans-serif;
    font-size: 14px;
    line-height: 1.4;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 15px;
    border-radius: 12px;
    margin: 20px 0;
    max-height: 95vh;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    border: 1px solid #dee2e6;
    display: block !important;
    width: 100% !important;
    clear: both !important;
    position: relative;
}

/* メインエリア */
.flipbook-main-area {
    background: white;
    border-radius: 12px;
    padding: 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    height: 100%;
    display: flex !important;
    flex-direction: row !important;
    min-height: 600px;
    max-height: calc(95vh - 30px);
    position: relative;
    overflow: hidden;
    width: 100%;
}

/* サイドバー */
.flipbook-sidebar {
    width: 280px !important;
    background: linear-gradient(180deg, #f8f9fa 0%, #e9ecef 100%);
    border-right: 2px solid #dee2e6;
    display: flex !important;
    flex-direction: column !important;
    padding: 20px;
    flex-shrink: 0 !important;
    overflow-y: auto;
    box-shadow: inset -2px 0 4px rgba(0,0,0,0.05);
    max-height: 100%;
}

.flipbook-sidebar::-webkit-scrollbar {
    width: 6px;
}

.flipbook-sidebar::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.flipbook-sidebar::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

.flipbook-sidebar::-webkit-scrollbar-thumb:hover {
    background: #007bff;
}

/* サイドバーセクション */
.flipbook-sidebar-section {
    margin-bottom: 20px;
    background: white;
    border-radius: 10px;
    padding: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    border: 1px solid #e9ecef;
}

.flipbook-sidebar-section h3 {
    margin: 0 0 15px 0;
    font-size: 14px;
    font-weight: 700;
    color: #495057;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid #f8f9fa;
    padding-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.flipbook-sidebar-section h3::before {
    content: '';
    width: 4px;
    height: 16px;
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    border-radius: 2px;
}

/* アニメーションコントロール */
.flipbook-animation-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.flipbook-animation-btn {
    padding: 12px 16px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-transform: none;
}

.flipbook-animation-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#flipbook-play-btn {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
    box-shadow: 0 3px 10px rgba(40, 167, 69, 0.3);
}

#flipbook-play-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
}

#flipbook-save-btn {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    color: white;
    box-shadow: 0 3px 10px rgba(0, 123, 255, 0.3);
}

#flipbook-save-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}

/* 描画ツール */
.flipbook-drawing-tools {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.flipbook-tool-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 8px;
}

.flipbook-tool-btn {
    padding: 12px 8px;
    border: 2px solid #e9ecef;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 8px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: #495057;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.flipbook-tool-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0,123,255,0.1) 0%, rgba(0,123,255,0.05) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.flipbook-tool-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    border-color: #007bff;
}

.flipbook-tool-btn:hover::before {
    opacity: 1;
}

.flipbook-tool-btn.active {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    color: white;
    border-color: #0056b3;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,123,255,0.3);
}

.flipbook-tool-btn.active::before {
    opacity: 0;
}

/* 色選択セクション */
.flipbook-color-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.flipbook-basic-colors {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 12px;
    justify-items: center;
}

.flipbook-color-item {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border: 2px solid transparent;
}

.flipbook-color-item:hover {
    transform: scale(1.1);
    box-shadow: 0 3px 8px rgba(0,0,0,0.2);
}

.flipbook-color-item.selected {
    border-color: #007bff;
    transform: scale(1.1);
    box-shadow: 0 0 0 3px rgba(0,123,255,0.3);
}

.flipbook-more-colors-btn {
    padding: 10px 12px;
    border: 2px solid #007bff;
    background: linear-gradient(135deg, #f8f9ff 0%, #e7f3ff 100%);
    border-radius: 8px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    transition: all 0.3s ease;
    color: #007bff;
    text-align: center;
}

.flipbook-more-colors-btn:hover {
    background: linear-gradient(135deg, #e7f3ff 0%, #cce7ff 100%);
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(0,123,255,0.2);
}

/* スライダー */
.flipbook-sliders {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.flipbook-slider-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: rgba(255,255,255,0.5);
    padding: 8px;
    border-radius: 6px;
    border: 1px solid #f0f0f0;
}

.flipbook-slider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.flipbook-slider-label {
    font-size: 12px;
    font-weight: 600;
    color: #495057;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.flipbook-slider-value {
    font-size: 12px;
    font-weight: 700;
    color: #007bff;
    background: linear-gradient(135deg, #e7f3ff 0%, #cce7ff 100%);
    padding: 2px 8px;
    border-radius: 10px;
    border: 1px solid #b3d9ff;
    min-width: 45px;
    text-align: center;
}

.flipbook-slider-group input[type="range"] {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: linear-gradient(90deg, #e9ecef 0%, #dee2e6 100%);
    outline: none;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
}

.flipbook-slider-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0,123,255,0.3);
    transition: all 0.3s ease;
}

.flipbook-slider-group input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 3px 10px rgba(0,123,255,0.4);
}

.flipbook-slider-group input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(0,123,255,0.3);
}

/* フレーム操作 */
.flipbook-frame-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.flipbook-frame-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.flipbook-frame-btn {
    padding: 10px 12px;
    border: 2px solid #e9ecef;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 6px;
    cursor: pointer;
    font-size: 11px;
    font-weight: 600;
    transition: all 0.3s ease;
    color: #495057;
    text-align: center;
}

.flipbook-frame-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(0,0,0,0.1);
    border-color: #007bff;
}

.flipbook-frame-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.flipbook-clear-btn {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
    color: white;
    border-color: #c82333;
    grid-column: 1 / -1;
}

.flipbook-clear-btn:hover:not(:disabled) {
    box-shadow: 0 3px 8px rgba(220, 53, 69, 0.3);
}

/* 履歴操作 */
.flipbook-history-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.flipbook-history-btn {
    padding: 10px 12px;
    border: 2px solid #e9ecef;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 6px;
    cursor: pointer;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s ease;
    color: #495057;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.flipbook-history-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(0,0,0,0.1);
    border-color: #007bff;
}

.flipbook-history-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* メインコンテンツエリア */
.flipbook-content-area {
    flex: 1 !important;
    display: flex !important;
    flex-direction: column !important;
    min-height: 0;
    min-width: 0;
}

/* キャンバスエリア */
.flipbook-canvas-area {
    flex: 1 !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    padding: 30px;
    background: #fafafa;
    position: relative;
    min-height: 400px;
}

.flipbook-canvas-area::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(120, 119, 198, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 119, 48, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(0, 182, 122, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

#flipbook-canvas {
    border: 3px solid #007bff !important;
    border-radius: 8px;
    background: white !important;
    cursor: crosshair;
    box-shadow: 
        0 8px 25px rgba(0,123,255,0.15),
        inset 0 1px 0 rgba(255,255,255,0.5);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    max-width: 100%;
    max-height: 100%;
    position: relative;
    z-index: 1;
    display: block !important;
}

#flipbook-canvas:hover {
    box-shadow: 
        0 12px 35px rgba(0,123,255,0.2),
        inset 0 1px 0 rgba(255,255,255,0.5);
    transform: scale(1.02);
}

/* フレーム一覧エリア */
.flipbook-frames-area {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%) !important;
    border-top: 2px solid #dee2e6 !important;
    padding: 15px !important;
    flex-shrink: 0 !important;
    height: 160px !important;
    display: flex !important;
    flex-direction: column !important;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.05);
}

.flipbook-thumbnails-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    flex-shrink: 0;
    padding-bottom: 8px;
    border-bottom: 2px solid rgba(255,255,255,0.5);
}

.flipbook-thumbnails-header h3 {
    margin: 0;
    font-size: 16px;
    color: #333;
    font-weight: 700;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.flipbook-frame-count {
    font-size: 12px;
    color: #007bff;
    background: linear-gradient(135deg, #f8f9ff 0%, #e7f3ff 100%);
    padding: 6px 12px;
    border-radius: 15px;
    font-weight: 700;
    border: 2px solid #b3d9ff;
    box-shadow: 0 2px 6px rgba(0,123,255,0.1);
    transition: all 0.3s ease;
}

.flipbook-thumbnails {
    display: flex !important;
    gap: 6px;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 6px;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 8px;
    border: 2px solid #dee2e6;
    flex: 1;
    min-height: 0;
    align-items: center;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.05);
}

.flipbook-thumbnails::-webkit-scrollbar {
    height: 8px;
}

.flipbook-thumbnails::-webkit-scrollbar-track {
    background: linear-gradient(90deg, #f1f1f1 0%, #e9e9e9 100%);
    border-radius: 4px;
}

.flipbook-thumbnails::-webkit-scrollbar-thumb {
    background: linear-gradient(90deg, #c1c1c1 0%, #a8a8a8 100%);
    border-radius: 4px;
}

.flipbook-thumbnails::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(90deg, #007bff 0%, #0056b3 100%);
}

.flipbook-thumbnail-item {
    position: relative;
    border: 3px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    background: white;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    flex-shrink: 0;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.flipbook-thumbnail-item:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
    border-color: #007bff;
}

.flipbook-thumbnail-item.selected {
    border-color: #007bff;
    transform: translateY(-4px) scale(1.05);
    box-shadow: 
        0 0 0 3px rgba(0,123,255,0.3),
        0 8px 20px rgba(0,123,255,0.2);
}

.flipbook-add-frame-btn {
    position: relative;
    border: 3px dashed #007bff;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    background: linear-gradient(135deg, #f8f9ff 0%, #e7f3ff 100%);
    box-shadow: 0 4px 12px rgba(0,123,255,0.1);
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #007bff;
    font-weight: bold;
}

.flipbook-add-frame-btn:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 20px rgba(0,123,255,0.25);
    background: linear-gradient(135deg, #e7f3ff 0%, #cce7ff 100%);
}

.flipbook-thumbnail-canvas {
    display: block;
    width: 45px;
    height: 45px;
    border-radius: 4px;
}

.flipbook-frame-number {
    position: absolute;
    top: 1px;
    left: 1px;
    background: linear-gradient(135deg, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.7) 100%);
    color: white;
    padding: 1px 3px;
    border-radius: 3px;
    font-size: 8px;
    font-weight: 700;
    z-index: 3;
    box-shadow: 0 1px 2px rgba(0,0,0,0.5);
    min-width: 10px;
    text-align: center;
    line-height: 1.2;
}

.flipbook-empty-message {
    color: #6c757d;
    font-style: italic;
    text-align: center;
    padding: 30px;
    font-size: 14px;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 8px;
    border: 2px dashed #ced4da;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
}

.flipbook-loading {
    display: none;
    text-align: center;
    color: #007bff;
    font-size: 14px;
    font-weight: 700;
    margin: 8px 0;
    padding: 10px;
    background: linear-gradient(135deg, #f8f9ff 0%, #e7f3ff 100%);
    border-radius: 8px;
    border: 2px solid #b3d9ff;
    flex-shrink: 0;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.flipbook-loading.show {
    display: block;
}

/* フォーカス状態 */
.flipbook-tool-btn:focus,
.flipbook-color-item:focus,
.flipbook-animation-btn:focus,
.flipbook-frame-btn:focus {
    outline: 3px solid rgba(0,123,255,0.3);
    outline-offset: 2px;
}

/* レスポンシブ対応 */
@media (max-width: 1024px) {
    .flipbook-sidebar {
        width: 250px;
        padding: 15px;
    }
    
    .flipbook-sidebar-section {
        padding: 12px;
        margin-bottom: 20px;
    }
}

@media (max-width: 900px) {
    .flipbook-main-area {
        flex-direction: column !important;
    }
    
    .flipbook-sidebar {
        width: 100% !important;
        flex-direction: row !important;
        flex-wrap: wrap !important;
        gap: 15px !important;
        padding: 15px !important;
        max-height: 200px !important;
        border-right: none !important;
        border-bottom: 2px solid #dee2e6 !important;
    }
    
    .flipbook-sidebar-section {
        flex: 1;
        min-width: 200px;
        margin-bottom: 0;
    }
    
    .flipbook-frames-area {
        height: 140px;
        padding: 15px;
    }
}

@media (max-width: 600px) {
    .flipbook-maker-container {
        padding: 10px;
    }
    
    .flipbook-sidebar {
        flex-direction: column !important;
        max-height: none !important;
        gap: 10px !important;
    }
    
    .flipbook-sidebar-section {
        min-width: auto;
        padding: 10px;
    }
    
    .flipbook-tool-buttons {
        grid-template-columns: 1fr 1fr;
    }
    
    .flipbook-canvas-area {
        padding: 15px;
    }
    
    .flipbook-frames-area {
        height: 120px;
        padding: 12px;
    }
    
    .flipbook-thumbnail-canvas {
        width: 45px;
        height: 45px;
    }
    
    .flipbook-add-frame-btn {
        width: 55px;
        height: 55px;
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .flipbook-sidebar {
        padding: 10px;
    }
    
    .flipbook-sidebar-section h3 {
        font-size: 12px;
    }
    
    .flipbook-tool-buttons {
        grid-template-columns: 1fr;
        gap: 6px;
    }
    
    .flipbook-animation-controls {
        gap: 8px;
    }
    
    .flipbook-animation-btn {
        padding: 10px 12px;
        font-size: 12px;
    }
}

/* ダークモード対応 */
@media (prefers-color-scheme: dark) {
    .flipbook-maker-container {
        background: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
        border-color: #4a5568;
    }
    
    .flipbook-main-area {
        background: #2d3748;
        color: #e2e8f0;
    }
    
    .flipbook-sidebar,
    .flipbook-frames-area {
        background: linear-gradient(180deg, #2d3748 0%, #1a202c 100%);
        border-color: #4a5568;
    }
    
    .flipbook-sidebar-section {
        background: #374151;
        border-color: #4a5568;
    }
    
    .flipbook-canvas-area {
        background: #1a202c;
    }
}