/* 基本スタイル */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

header h1 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 2.5rem;
}

header p {
    color: #7f8c8d;
    font-size: 1.1rem;
}

/* アップロードセクション */
.upload-section {
    margin-bottom: 30px;
}

/* リサイズ設定セクション */
.resize-settings-section {
    background-color: white;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.resize-settings-section h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.resize-inputs {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.resize-input-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.resize-input-group label {
    font-size: 0.9rem;
    color: #495057;
    font-weight: 500;
}

.resize-input-group input {
    padding: 8px 12px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-size: 0.9rem;
    width: 150px;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.resize-input-group input:focus {
    border-color: #3498db;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

.upload-area {
    position: relative;
    text-align: center;
    padding: 40px;
    border: 2px dashed #bdc3c7;
    border-radius: 10px;
    background-color: white;
    transition: all 0.3s ease;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-area:hover {
    border-color: #3498db;
    background-color: #f8f9fa;
}

.upload-area.drag-over {
    border-color: #27ae60;
    background-color: #d4edda;
    transform: scale(1.02);
}

.upload-content {
    z-index: 2;
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.upload-content h3 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.upload-btn {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 1.1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    margin-top: 15px;
}

.upload-btn:hover {
    background-color: #2980b9;
}

.upload-hint {
    margin: 5px 0;
    color: #7f8c8d;
    font-size: 0.9rem;
}

/* ドラッグオーバーレイ */
.drag-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(39, 174, 96, 0.9);
    border-radius: 10px;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.drag-overlay.active {
    display: flex;
}

.drag-content {
    text-align: center;
    color: white;
}

.drag-icon {
    font-size: 4rem;
    margin-bottom: 15px;
    animation: bounce 1s infinite;
}

.drag-content h3 {
    color: white;
    font-size: 1.5rem;
    margin: 0;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* 統一されたコントロールセクション */
.controls-section {
    background-color: white;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.watermark-status {
    padding: 8px 12px;
    background-color: #f8f9fa;
    border-radius: 4px;
    border-left: 4px solid #3498db;
    text-align: center;
}

.watermark-status.loaded {
    background-color: #d4edda;
    border-left-color: #28a745;
    color: #155724;
}

.watermark-status.error {
    background-color: #f8d7da;
    border-left-color: #dc3545;
    color: #721c24;
}

/* 画像処理セクション */
.image-processing-section {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    margin-bottom: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.processing-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.processing-header h3 {
    color: #2c3e50;
    margin: 0;
}

.processing-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* 統一されたアクションボタン */
.action-btn {
    border: none;
    padding: 12px 24px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-weight: 500;
}

.action-btn.primary {
    background-color: #3498db;
    color: white;
}

.action-btn.primary:hover {
    background-color: #2980b9;
}

.action-btn.success {
    background-color: #27ae60;
    color: white;
}

.action-btn.success:hover {
    background-color: #229954;
}

.action-btn.danger {
    background-color: #e74c3c;
    color: white;
}

.action-btn.danger:hover {
    background-color: #c0392b;
}

.action-btn.secondary {
    background-color: #95a5a6;
    color: white;
}

.action-btn.secondary:hover {
    background-color: #7f8c8d;
}

.action-btn:disabled {
    background-color: #bdc3c7;
    cursor: not-allowed;
}

/* プログレスバー */
.progress-section {
    margin-bottom: 20px;
}

.progress-bar {
    width: 100%;
    height: 20px;
    background-color: #ecf0f1;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    background-color: #3498db;
    border-radius: 10px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    text-align: center;
    color: #7f8c8d;
    font-size: 0.9rem;
}

/* 画像グリッド */
.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    align-items: start;
}

.image-item {
    border: 1px solid #ddd;
    overflow: hidden;
    background-color: #f8f9fa;
    display: flex;
    flex-direction: column;
    min-height: 400px;
}

.image-preview-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #ecf0f1;
    min-height: 200px;
    max-height: 300px;
    overflow: hidden;
}

.image-preview {
    width: 100%;
    max-height: 300px;
    min-height: 200px;
    object-fit: contain;
    background-color: #ecf0f1;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    image-rendering: pixelated;
    image-rendering: high-quality;
    display: block;
}

.image-info {
    padding: 15px;
}

.image-name {
    font-size: 0.9rem;
    color: #2c3e50;
    margin-bottom: 8px;
    word-break: break-all;
    font-weight: 500;
}

/* ファイル名入力 */
.image-name-container {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
    gap: 4px;
}

.image-name-input {
    flex: 1;
    padding: 4px 8px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-size: 0.85rem;
    color: #495057;
    background-color: white;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.image-name-input:focus {
    border-color: #3498db;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

.file-extension {
    font-size: 0.8rem;
    color: #6c757d;
    font-weight: 500;
    white-space: nowrap;
}

.image-details {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    font-size: 0.8rem;
    color: #7f8c8d;
}

.image-status {
    font-size: 0.8rem;
    padding: 4px 8px;
    border-radius: 12px;
    display: inline-block;
    font-weight: 500;
}

.status-pending {
    background-color: #fff3cd;
    color: #856404;
}

.status-processing {
    background-color: #d1ecf1;
    color: #0c5460;
}

.status-completed {
    background-color: #d4edda;
    color: #155724;
}

.status-error {
    background-color: #f8d7da;
    color: #721c24;
}

.image-settings {
    margin-bottom: 10px;
    font-size: 0.8rem;
    color: #6c757d;
}

/* ウォーターマーク選択 */
.watermark-selection {
    margin-bottom: 15px;
}

.watermark-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    gap: 6px;
    margin-top: 8px;
}

.watermark-option-btn {
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    padding: 6px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.7rem;
    color: #495057;
    transition: all 0.2s ease;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.watermark-option-btn:hover {
    background-color: #e9ecef;
    border-color: #adb5bd;
}

.watermark-option-btn.active {
    background-color: #3498db;
    color: white;
    border-color: #2980b9;
}

.watermark-option-btn.active:hover {
    background-color: #2980b9;
}

.image-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.image-actions .action-btn {
    flex: 1;
    min-width: 80px;
    padding: 8px 12px;
    font-size: 0.8rem;
}

/* モーダル */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background-color: white;
    border-radius: 10px;
    max-width: 800px;
    max-height: 90vh;
    width: 90%;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #dee2e6;
    background-color: #f8f9fa;
}

.modal-header h3 {
    margin: 0;
    color: #2c3e50;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #6c757d;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: #495057;
}

.modal-body {
    padding: 20px;
    max-height: 60vh;
    overflow-y: auto;
}

.preview-container {
    text-align: center;
    margin-bottom: 20px;
}

#modalPreviewCanvas {
    max-width: 100%;
    max-height: 400px;
    width: auto;
    height: auto;
    object-fit: contain;
}
    border: 1px solid #ddd;
    border-radius: 5px;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    image-rendering: pixelated;
    image-rendering: high-quality;
}

.settings-container {
    display: grid;
    gap: 20px;
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.setting-group label {
    font-weight: 500;
    color: #2c3e50;
}

.position-buttons, .aspect-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.watermark-grid {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.watermark-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.aspect-label {
    min-width: 80px;
    font-weight: bold;
    color: #2c3e50;
    font-size: 0.9rem;
}

.watermark-option-btn {
    background-color: #ecf0f1;
    border: 2px solid #bdc3c7;
    padding: 8px 12px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    min-width: 70px;
}

.watermark-option-btn:hover {
    background-color: #d5dbdb;
}

.watermark-option-btn.active {
    background-color: #3498db;
    color: white;
    border-color: #2980b9;
}

.auto-detect {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #ecf0f1;
}

.auto-detect label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: #7f8c8d;
}

.position-btn, .aspect-btn {
    background-color: #ecf0f1;
    border: 2px solid #bdc3c7;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    flex: 1;
    min-width: 100px;
}

.position-btn:hover, .aspect-btn:hover {
    background-color: #d5dbdb;
}

.position-btn.active, .aspect-btn.active {
    background-color: #3498db;
    color: white;
    border-color: #2980b9;
}

.aspect-auto {
    margin-top: 10px;
}

.aspect-auto label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: normal;
    cursor: pointer;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 20px;
    border-top: 1px solid #dee2e6;
    background-color: #f8f9fa;
}
.download-section {
    text-align: center;
    margin-bottom: 30px;
}

.download-btn {
    background-color: #27ae60;
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 1.1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.download-btn:hover {
    background-color: #229954;
}

/* エラーセクション */
.error-section {
    background-color: #e74c3c;
    color: white;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.error-message {
    text-align: center;
    font-weight: bold;
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .upload-area {
        padding: 20px;
    }
    
    .resize-inputs {
        flex-direction: column;
        gap: 15px;
    }
    
    .resize-input-group input {
        width: 100%;
    }
    
    .image-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 15px;
    }
    
    .image-item {
        min-height: 350px;
    }
    
    .image-preview-container {
        max-height: 250px;
    }
    
    .watermark-buttons {
        grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
        gap: 4px;
    }
    
    .watermark-option-btn {
        font-size: 0.65rem;
        padding: 4px 6px;
    }
}