/**
 * WP GFM Mermaid Zoom Modal Styles
 * Mermaid図表拡大表示モーダルのスタイル
 *
 * @since 1.0.0
 * @package WP_GFM_Renderer
 */

/* モーダル表示中のボディ設定 */
body.wp-gfm-modal-open {
	overflow: hidden;
	padding-right: 15px; /* スクロールバー分の調整 */
}

/* モーダル基本構造 */
.wp-gfm-mermaid-zoom-modal {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	z-index: 999999; /* WordPressの最上位より上 */
	display: flex;
	align-items: center;
	justify-content: center;
	visibility: hidden;
	opacity: 0;
	transition: opacity 0.3s ease, visibility 0.3s ease;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.wp-gfm-mermaid-zoom-modal.active {
	visibility: visible;
	opacity: 1;
}

/* オーバーレイ */
.wp-gfm-mermaid-zoom-modal .modal-overlay {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(0, 0, 0, 0.8);
	backdrop-filter: blur(4px);
	-webkit-backdrop-filter: blur(4px);
}

/* モーダルダイアログ */
.wp-gfm-mermaid-zoom-modal .modal-dialog {
	position: relative;
	width: 95%;
	height: 90%;
	max-width: 1200px;
	max-height: 800px;
	background: #fff;
	border-radius: 12px;
	box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
	display: flex;
	flex-direction: column;
	overflow: hidden;
	transform: scale(0.9);
	transition: transform 0.3s ease;
}

.wp-gfm-mermaid-zoom-modal.active .modal-dialog {
	transform: scale(1);
}

/* モーダルヘッダー */
.wp-gfm-mermaid-zoom-modal .modal-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 16px 20px;
	background: #f8f9fa;
	border-bottom: 1px solid #e1e4e8;
	min-height: 60px;
}

.wp-gfm-mermaid-zoom-modal .modal-title {
	margin: 0;
	font-size: 18px;
	font-weight: 600;
	color: #24292f;
	flex: 1;
}

.wp-gfm-mermaid-zoom-modal .modal-controls {
	display: flex;
	align-items: center;
	gap: 8px;
}

/* コントロールボタン */
.wp-gfm-mermaid-zoom-modal .zoom-btn,
.wp-gfm-mermaid-zoom-modal .close-btn {
	background: #fff;
	border: 1px solid #d1d9e0;
	border-radius: 6px;
	padding: 8px 12px;
	font-size: 14px;
	cursor: pointer;
	transition: all 0.2s ease;
	display: flex;
	align-items: center;
	justify-content: center;
	min-width: 36px;
	height: 36px;
}

.wp-gfm-mermaid-zoom-modal .close-btn {
	color: #656d76;
	font-size: 20px;
	font-weight: 400;
}

.wp-gfm-mermaid-zoom-modal .zoom-btn:hover {
	background: #f3f4f6;
	border-color: #c1c8cd;
	transform: translateY(-1px);
}

.wp-gfm-mermaid-zoom-modal .close-btn:hover {
	color: #24292f;
	background: #ffebee;
	border-color: #f5c6cb;
	transform: translateY(-1px);
}

.wp-gfm-mermaid-zoom-modal .zoom-btn:active,
.wp-gfm-mermaid-zoom-modal .close-btn:active {
	transform: translateY(0);
	background: #e1e4e8;
}

/* フォーカス状態 */
.wp-gfm-mermaid-zoom-modal .zoom-btn:focus,
.wp-gfm-mermaid-zoom-modal .close-btn:focus {
	outline: none;
	box-shadow: 0 0 0 3px rgba(9, 105, 218, 0.3);
	border-color: #0969da;
}

/* モーダルコンテンツ */
.wp-gfm-mermaid-zoom-modal .modal-content {
	flex: 1;
	overflow: hidden;
	position: relative;
	background: #fff;
}

.wp-gfm-mermaid-zoom-modal .diagram-container {
	width: 100%;
	height: 100%;
	overflow: hidden;
	position: relative;
	cursor: grab;
	display: flex;
	align-items: center;
	justify-content: center;
	background: #fff;

	/* チェッカーボード背景は一時的に無効化してデバッグ
    background: linear-gradient(45deg, #f8f9fa 25%, transparent 25%),
                linear-gradient(-45deg, #f8f9fa 25%, transparent 25%),
                linear-gradient(45deg, transparent 75%, #f8f9fa 75%),
                linear-gradient(-45deg, transparent 75%, #f8f9fa 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    */
}

.wp-gfm-mermaid-zoom-modal .diagram-container:active {
	cursor: grabbing;
}

/* ズームラッパー */
.wp-gfm-mermaid-zoom-modal .zoom-wrapper {
	transition: transform 0.2s ease-out;
	transform-origin: center center;
	will-change: transform;
}

/* SVGスタイル調整 */
.wp-gfm-mermaid-zoom-modal .zoom-wrapper svg {
	display: block;
	max-width: none !important;
	max-height: none !important;
	width: auto !important;
	height: auto !important;
	cursor: default;
}

/* モーダルフッター */
.wp-gfm-mermaid-zoom-modal .modal-footer {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 12px 20px;
	background: #f8f9fa;
	border-top: 1px solid #e1e4e8;
	font-size: 13px;
	color: #656d76;
}

.wp-gfm-mermaid-zoom-modal .zoom-info {
	display: flex;
	align-items: center;
	gap: 8px;
}

.wp-gfm-mermaid-zoom-modal .zoom-level {
	background: #fff;
	border: 1px solid #d1d9e0;
	border-radius: 4px;
	padding: 4px 8px;
	font-weight: 600;
	color: #24292f;
	min-width: 50px;
	text-align: center;
}

.wp-gfm-mermaid-zoom-modal .instructions {
	font-style: italic;
}

/* ダークテーマ対応 */
@media (prefers-color-scheme: dark) {

	.wp-gfm-mermaid-zoom-modal .modal-dialog {
		background: #0d1117;
		color: #e6edf3;
	}

	.wp-gfm-mermaid-zoom-modal .modal-header,
	.wp-gfm-mermaid-zoom-modal .modal-footer {
		background: #161b22;
		border-color: #30363d;
	}

	.wp-gfm-mermaid-zoom-modal .modal-title {
		color: #e6edf3;
	}

	.wp-gfm-mermaid-zoom-modal .zoom-btn,
	.wp-gfm-mermaid-zoom-modal .close-btn {
		background: #21262d;
		border-color: #30363d;
		color: #e6edf3;
	}

	.wp-gfm-mermaid-zoom-modal .zoom-btn:hover,
	.wp-gfm-mermaid-zoom-modal .close-btn:hover {
		background: #30363d;
		border-color: #484f58;
	}

	.wp-gfm-mermaid-zoom-modal .close-btn:hover {
		background: #da3633;
		border-color: #f85149;
		color: #fff;
	}

	.wp-gfm-mermaid-zoom-modal .modal-content {
		background: #0d1117;
	}

	.wp-gfm-mermaid-zoom-modal .diagram-container {
		background:
			linear-gradient(45deg, #161b22 25%, transparent 25%),
			linear-gradient(-45deg, #161b22 25%, transparent 25%),
			linear-gradient(45deg, transparent 75%, #161b22 75%),
			linear-gradient(-45deg, transparent 75%, #161b22 75%);
	}

	.wp-gfm-mermaid-zoom-modal .zoom-level {
		background: #21262d;
		border-color: #30363d;
		color: #e6edf3;
	}

	.wp-gfm-mermaid-zoom-modal .instructions {
		color: #7d8590;
	}
}

/* レスポンシブ対応 */
@media (max-width: 768px) {

	.wp-gfm-mermaid-zoom-modal .modal-dialog {
		width: 98%;
		height: 95%;
		border-radius: 8px;
	}

	.wp-gfm-mermaid-zoom-modal .modal-header {
		padding: 12px 16px;
		min-height: 50px;
	}

	.wp-gfm-mermaid-zoom-modal .modal-title {
		font-size: 16px;
	}

	.wp-gfm-mermaid-zoom-modal .modal-controls {
		gap: 6px;
	}

	.wp-gfm-mermaid-zoom-modal .zoom-btn,
	.wp-gfm-mermaid-zoom-modal .close-btn {
		padding: 6px 10px;
		min-width: 32px;
		height: 32px;
		font-size: 13px;
	}

	.wp-gfm-mermaid-zoom-modal .modal-footer {
		padding: 10px 16px;
		flex-direction: column;
		gap: 8px;
		align-items: flex-start;
	}

	.wp-gfm-mermaid-zoom-modal .instructions {
		font-size: 12px;
		text-align: center;
		width: 100%;
	}

	/* モバイルでは背景パターンを簡素化 */
	.wp-gfm-mermaid-zoom-modal .diagram-container {
		background: #f8f9fa;
	}

	@media (prefers-color-scheme: dark) {

		.wp-gfm-mermaid-zoom-modal .diagram-container {
			background: #161b22;
		}
	}
}

@media (max-width: 480px) {

	body.wp-gfm-modal-open {
		padding-right: 0; /* 小さな画面ではスクロールバー調整不要 */
	}

	.wp-gfm-mermaid-zoom-modal .modal-dialog {
		width: 100%;
		height: 100%;
		border-radius: 0;
	}

	.wp-gfm-mermaid-zoom-modal .modal-header {
		padding: 10px 12px;
	}

	.wp-gfm-mermaid-zoom-modal .modal-footer {
		padding: 8px 12px;
	}
}

/* 高コントラストモード対応 */
@media (prefers-contrast: high) {

	.wp-gfm-mermaid-zoom-modal .modal-dialog {
		border: 2px solid #000;
	}

	.wp-gfm-mermaid-zoom-modal .zoom-btn,
	.wp-gfm-mermaid-zoom-modal .close-btn {
		border: 2px solid #000;
	}

	.wp-gfm-mermaid-zoom-modal .zoom-btn:focus,
	.wp-gfm-mermaid-zoom-modal .close-btn:focus {
		box-shadow: 0 0 0 4px #ff0;
		border-color: #000;
	}
}

/* アニメーション削除の設定 */
@media (prefers-reduced-motion: reduce) {

	.wp-gfm-mermaid-zoom-modal,
	.wp-gfm-mermaid-zoom-modal .modal-dialog,
	.wp-gfm-mermaid-zoom-modal .zoom-wrapper,
	.wp-gfm-mermaid-zoom-modal .zoom-btn,
	.wp-gfm-mermaid-zoom-modal .close-btn {
		transition: none;
	}
}

/* カーソル表示制御 */
.wp-gfm-mermaid-zoom-modal .diagram-container.dragging {
	cursor: grabbing !important;
}

/* タッチデバイス最適化 */
@media (hover: none) and (pointer: coarse) {

	.wp-gfm-mermaid-zoom-modal .zoom-btn,
	.wp-gfm-mermaid-zoom-modal .close-btn {
		min-width: 44px;
		height: 44px;
		padding: 10px;
	}

	.wp-gfm-mermaid-zoom-modal .diagram-container {
		cursor: default;
	}

	.wp-gfm-mermaid-zoom-modal .diagram-container:active {
		cursor: default;
	}
}