/* =================================================================
 * Page Specific Styles for Blob Generator (style.css)
 * ================================================================= */

.tool-results-sticky {
    position: -webkit-sticky;
    position: sticky;
    top: 20px;
    max-height: calc(100vh - 40px); 
    overflow-y: auto;
}
.tool-results-sticky::-webkit-scrollbar { width: 6px; }
.tool-results-sticky::-webkit-scrollbar-thumb { background: rgba(150,150,150,0.3); border-radius: 4px; }

/* --- プレビューエリア背景クラス --- */
.preview-container {
    border-radius: 0.5rem;
    border: 1px solid var(--bs-border-color);
    transition: background 0.3s ease;
    overflow: auto; /* ★ はみ出した時はスクロールバーを出す */
}

/* 常にライトモード見た目を維持する市松模様 */
.bg-pattern-checker {
    background-color: #f8f9fa !important;
    background-image: 
        linear-gradient(45deg, #e0e0e0 25%, transparent 25%), 
        linear-gradient(-45deg, #e0e0e0 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, #e0e0e0 75%), 
        linear-gradient(-45deg, transparent 75%, #e0e0e0 75%) !important;
    background-size: 20px 20px !important;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px !important;
}

.bg-pattern-black { background: #212529 !important; }
.bg-pattern-white { background: #ffffff !important; }
.bg-pattern-custom { background-image: none !important; }

/* 背景切り替えボタン */
.preview-bg-btn {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    padding: 0;
    cursor: pointer;
    border: 1px solid var(--bs-border-color);
}
.preview-bg-btn.active {
    box-shadow: 0 0 0 2px var(--bs-primary);
}

/* ★ アスペクト比とサイズを厳格に守るラッパー */
.preview-wrapper {
    position: relative;
    /* 余計な制約をなくし、JS側で直接サイズコントロールする */
    display: block; 
}

/* 画像マスクが適用される要素 */
.preview-shape {
    width: 100%;
    height: 100%;
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
}

/* --- コード出力テキストエリア --- */
.code-output { 
    font-family: 'Fira Code', Consolas, monospace; 
    font-size: 0.85rem; 
    resize: vertical; 
    background-color: #1e1e1e; 
    color: #dcdcaa;
    white-space: pre; 
    overflow-x: auto; 
    border: 1px solid var(--bs-border-color);
}
.code-output:focus {
    background-color: #1e1e1e;
    color: #dcdcaa;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

/* --- 履歴ボタン・フローティングボタン --- */
.history-btn-wrapper { position: relative; display: inline-block; }

/* 履歴サムネイルボタンのサイズとスタイルを明示 */
.history-thumb-btn {
    width: 48px;
    height: 48px;
    border-radius: 6px;
    border: 1px solid var(--bs-border-color);
    padding: 0;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    display: block;
    background-color: #f8f9fa; /* 画像透過時のベース色 */
}
.history-thumb-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0.25rem 0.5rem rgba(0,0,0,0.1);
}

.history-delete-btn {
    position: absolute; top: -8px; right: -8px; width: 20px; height: 20px;
    background: var(--bs-danger); color: white; border-radius: 50%; font-size: 11px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; border: 2px solid var(--bs-body-bg); opacity: 0; transition: opacity 0.2s;
    z-index: 2;
}
.history-btn-wrapper:hover .history-delete-btn { opacity: 1; }
.history-delete-btn:hover { transform: scale(1.1); }

.floating-save-btn {
    position: fixed; bottom: 30px; right: 30px; width: 60px; height: 60px;
    z-index: 1050; display: flex; align-items: center; justify-content: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.floating-save-btn:hover {
    transform: scale(1.05) translateY(-3px);
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.3) !important;
}

/* --- グラデーション用ドラッグポイント --- */
.drag-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: 10;
}
.drag-point {
    width: 22px; height: 22px; border: 2px solid #fff; border-radius: 50%;
    position: absolute; transform: translate(-50%, -50%);
    cursor: grab; box-shadow: 0 2px 5px rgba(0, 0, 0, 0.4); pointer-events: auto;
    transition: transform 0.1s;
}
.drag-point:hover { transform: translate(-50%, -50%) scale(1.2); }
.drag-point:active { cursor: grabbing; transform: translate(-50%, -50%) scale(1.1); }

/* --- カラーポイント設定用（ドラッグ＆ドロップ対応） --- */
.color-item {
    transition: opacity 0.2s, border-color 0.2s;
}
.dragging-item { opacity: 0.4; }
.drag-over-item { border-color: var(--bs-primary) !important; border-style: dashed !important; }
.drag-handle:active { cursor: grabbing !important; }