/**
 * Estec FAQ Manager - Frontend CSS
 * v1.4.0
 *
 * v1.4.0：アコーディオン回答エリアの全面ビジュアル改善
 *  - 左パディング拡大、Aアイコン強化、行間ゆとり
 *  - 左ボーダーアクセント、HTML要素にスタイル明示
 *  - レスポンシブ対応強化
 *
 * すべてのスタイルは .efm-app スコープ内に閉じ込められており、
 * テーマや他プラグインに影響しません。
 * !important は使わず、テーマのフォント設定（font-family / font-size）を継承します。
 */

/* ===== ベース ============================================================ */

.efm-app,
.efm-app * {
	box-sizing: border-box;
}

.efm-app {
	font-family: var(--efm-font-family, inherit);
	color: var(--efm-color-q-text, inherit);
	max-width: 100%;
	margin: 0 auto;
	line-height: 1.7;
}

/* ===== 検索バー ========================================================== */

.efm-app .efm-search-wrap {
	position: relative;
	margin: 0 0 16px;
}

.efm-app .efm-search-input {
	width: 100%;
	padding: 12px 40px 12px 44px;
	border: var(--efm-border-w) solid var(--efm-color-border);
	border-radius: var(--efm-radius);
	background: #fff;
	font-size: 15px;
	font-family: inherit;
	color: inherit;
	outline: none;
	transition: border-color 0.2s, box-shadow 0.2s;
}

.efm-app .efm-search-input:focus {
	border-color: var(--efm-color-main);
	box-shadow: 0 0 0 3px rgba(30, 136, 229, 0.12);
}

.efm-app .efm-search-wrap::before {
	content: "🔍";
	position: absolute;
	left: 14px;
	top: 50%;
	transform: translateY(-50%);
	font-size: 16px;
	pointer-events: none;
	opacity: 0.6;
}

.efm-app .efm-search-clear {
	position: absolute;
	right: 8px;
	top: 50%;
	transform: translateY(-50%);
	width: 28px;
	height: 28px;
	border-radius: 50%;
	border: none;
	background: var(--efm-color-sub);
	color: var(--efm-color-q-text);
	cursor: pointer;
	font-size: 16px;
	line-height: 1;
	display: none;
	padding: 0;
}

.efm-app .efm-search-clear.is-visible {
	display: block;
}

.efm-app .efm-search-clear:hover {
	background: var(--efm-color-main);
	color: #fff;
}

/* ===== カテゴリーボタン ================================================== */

.efm-app .efm-category-bar {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	margin: 0 0 14px;
}

.efm-app .efm-cat-btn {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	padding: var(--efm-button-pad-v, 6px) var(--efm-button-pad-h, 14px);
	border: var(--efm-border-w) solid var(--efm-color-border);
	border-radius: 999px;
	background: var(--efm-color-button-bg);
	color: var(--efm-color-button-text);
	font-size: var(--efm-button-font-size, 13px);
	font-family: inherit;
	cursor: pointer;
	transition: all 0.2s ease;
	white-space: nowrap;
}
.efm-app .efm-cat-emoji { font-size: 1.1em; }

.efm-app.efm-btn-size-small  .efm-cat-btn { padding: 3px 10px; font-size: 11px; }
.efm-app.efm-btn-size-large  .efm-cat-btn { padding: 9px 20px; font-size: 15px; }
.efm-app.efm-btn-style-square    .efm-cat-btn { border-radius: 6px; }
.efm-app.efm-btn-style-outline   .efm-cat-btn { background: transparent; }
.efm-app.efm-btn-style-outline   .efm-cat-btn.efm-cat-active { background: var(--efm-this-color, var(--efm-color-button-active)); }
.efm-app.efm-btn-style-underline .efm-cat-btn { background: transparent; border: none; border-bottom: 2px solid transparent; border-radius: 0; padding-bottom: 8px; }
.efm-app.efm-btn-style-underline .efm-cat-btn.efm-cat-active { background: transparent; color: var(--efm-this-color, var(--efm-color-button-active)); border-bottom-color: var(--efm-this-color, var(--efm-color-button-active)); }

.efm-app .efm-cat-btn:hover {
	border-color: var(--efm-this-color, var(--efm-color-button-active));
	color: var(--efm-this-color, var(--efm-color-button-active));
}

.efm-app .efm-cat-btn.efm-cat-active {
	background: var(--efm-this-color, var(--efm-color-button-active));
	border-color: var(--efm-this-color, var(--efm-color-button-active));
	color: var(--efm-this-text, #fff);
}

/* ===== 件数表示 ========================================================== */

.efm-app .efm-count-display {
	font-size: 13px;
	color: var(--efm-color-q-text);
	opacity: 0.7;
	margin: 0 0 12px;
}

/* ===== FAQリスト ========================================================= */

.efm-app .efm-list {
	display: flex;
	flex-direction: column;
	gap: var(--efm-gap);
}

.efm-app .efm-item {
	border: var(--efm-border-w) solid var(--efm-color-border);
	border-radius: var(--efm-radius);
	background: var(--efm-color-q-bg);
	overflow: hidden;
	box-shadow: var(--efm-shadow);
	transition: box-shadow 0.2s ease;
}

.efm-app .efm-item.is-hidden {
	display: none;
}

.efm-app .efm-item.is-open {
	border-color: var(--efm-color-main);
	box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.efm-app .efm-item.efm-highlight { animation: efm-highlight 1.5s ease; }
@keyframes efm-highlight {
	0%   { box-shadow: 0 0 0 0 var(--efm-color-main); }
	30%  { box-shadow: 0 0 0 4px var(--efm-color-main); }
	100% { box-shadow: 0 0 0 0 transparent; }
}

/* ===== 質問エリア ======================================================== */

.efm-app .efm-q {
	display: flex;
	align-items: flex-start;
	gap: 12px;
	width: 100%;
	padding: var(--efm-pad-v) var(--efm-pad-h);
	background: var(--efm-color-q-bg);
	color: var(--efm-color-q-text);
	border: none;
	cursor: pointer;
	text-align: left;
	font-family: inherit;
	font-size: var(--efm-font-size-q, inherit);
	font-weight: var(--efm-font-weight-q);
	line-height: var(--efm-line-height-q, 1.6);
	letter-spacing: var(--efm-letter-spacing, normal);
	transition: background-color 0.2s ease;
}

.efm-app .efm-q:hover {
	background: var(--efm-color-sub);
}

.efm-app .efm-q-icon {
	flex: 0 0 auto;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: var(--efm-icon-size, 28px);
	height: var(--efm-icon-size, 28px);
	border-radius: 50%;
	background: var(--efm-color-q-icon-bg);
	color: var(--efm-color-q-icon-text);
	font-weight: bold;
	font-size: var(--efm-icon-font-size, 13px);
	line-height: 1;
}

.efm-app .efm-q-text {
	flex: 1 1 auto;
}

.efm-app .efm-q-cat-badges {
	display: flex;
	gap: 4px;
	flex-wrap: wrap;
	flex: 0 0 auto;
	margin-left: auto;
}

.efm-app .efm-q-cat-badge {
	display: inline-flex;
	align-items: center;
	gap: 2px;
	padding: var(--efm-badge-pad-v, 2px) var(--efm-badge-pad-h, 8px);
	font-size: var(--efm-badge-font-size, 11px);
	font-weight: normal;
	background: var(--efm-color-sub);
	color: var(--efm-color-q-text);
	border: 1px solid transparent;
	border-radius: 999px;
	white-space: nowrap;
}
.efm-app .efm-q-cat-badge-emoji { font-size: 1.05em; }
.efm-app.efm-badge-square  .efm-q-cat-badge { border-radius: 4px; }
.efm-app.efm-badge-soft .efm-q-cat-badge { opacity: 0.9; filter: brightness(1.05); }

.efm-app .efm-q-toggle {
	flex: 0 0 auto;
	width: 20px;
	height: 20px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	transition: transform var(--efm-anim-dur) var(--efm-anim-ease);
	color: var(--efm-color-main);
	font-size: 14px;
}

/* アイコンスタイル */
.efm-app.efm-icon-chevron .efm-q-toggle::before { content: "▼"; }
.efm-app.efm-icon-plus    .efm-q-toggle::before { content: "+"; font-size: 22px; line-height: 0; }
.efm-app.efm-icon-arrow   .efm-q-toggle::before { content: "▶"; font-size: 12px; }
.efm-app.efm-icon-none    .efm-q-toggle { display: none; }

.efm-app .efm-item.is-open .efm-q-toggle { transform: rotate(180deg); }
.efm-app.efm-icon-plus  .efm-item.is-open .efm-q-toggle::before { content: "−"; }
.efm-app.efm-icon-arrow .efm-item.is-open .efm-q-toggle { transform: rotate(90deg); }

/* ===== 回答エリア ======================================================== */

.efm-app .efm-a {
	display: flex;
	align-items: flex-start;
	gap: 18px;
	padding: 22px 26px 24px;
	background: var(--efm-color-a-bg);
	color: var(--efm-color-a-text);
	border-top: var(--efm-border-w) solid var(--efm-color-border);
	border-left: 4px solid var(--efm-color-a-icon-bg);
	font-size: var(--efm-font-size-a, inherit);
	line-height: var(--efm-line-height-a, 1.9);
	letter-spacing: var(--efm-letter-spacing, normal);
	animation: efm-slidedown var(--efm-anim-dur) var(--efm-anim-ease);
	position: relative;
}

.efm-app .efm-a[hidden] {
	display: none;
}

.efm-app .efm-a-icon {
	flex: 0 0 auto;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: calc(var(--efm-icon-size, 28px) + 4px);
	height: calc(var(--efm-icon-size, 28px) + 4px);
	border-radius: 50%;
	background: var(--efm-color-a-icon-bg);
	color: var(--efm-color-a-icon-text);
	font-weight: bold;
	font-size: calc(var(--efm-icon-font-size, 13px) + 1px);
	line-height: 1;
	margin-top: 4px;
	box-shadow: 0 2px 6px rgba(0,0,0,0.12);
}

.efm-app .efm-a-text {
	flex: 1 1 auto;
	min-width: 0;
	word-break: break-word;
	overflow-wrap: anywhere;
	padding-left: 4px;
	padding-right: 8px;
	padding-top: 4px;
}

/* 回答内HTML要素にスタイル明示（テーマ崩れ防止） */
.efm-app .efm-a-text > *:first-child { margin-top: 0; }
.efm-app .efm-a-text > *:last-child  { margin-bottom: 0; }
.efm-app .efm-a-text p { margin: 0 0 0.85em; line-height: inherit; color: inherit; }
.efm-app .efm-a-text strong, .efm-app .efm-a-text b { font-weight: bold; color: var(--efm-color-main); }
.efm-app .efm-a-text em, .efm-app .efm-a-text i { font-style: italic; }
.efm-app .efm-a-text a { color: var(--efm-color-main); text-decoration: underline; text-underline-offset: 2px; word-break: break-all; }
.efm-app .efm-a-text a:hover { opacity: 0.75; }
.efm-app .efm-a-text ul, .efm-app .efm-a-text ol { margin: 0.6em 0 0.85em; padding-left: 1.5em; }
.efm-app .efm-a-text ul { list-style: disc; }
.efm-app .efm-a-text ol { list-style: decimal; }
.efm-app .efm-a-text li { margin: 0.2em 0; line-height: inherit; }
.efm-app .efm-a-text h2 { font-size: 1.15em; font-weight: bold; margin: 1em 0 0.4em; padding-left: 10px; border-left: 4px solid var(--efm-color-main); line-height: 1.4; }
.efm-app .efm-a-text h3 { font-size: 1.08em; font-weight: bold; margin: 1em 0 0.4em; line-height: 1.4; }
.efm-app .efm-a-text h4 { font-size: 1.02em; font-weight: bold; margin: 1em 0 0.3em; line-height: 1.4; }
.efm-app .efm-a-text code { background: rgba(0,0,0,0.06); padding: 2px 6px; border-radius: 3px; font-size: 0.9em; }
.efm-app .efm-a-text pre { background: rgba(0,0,0,0.04); padding: 12px 14px; border-radius: 6px; overflow-x: auto; margin: 0.8em 0; }
.efm-app .efm-a-text blockquote { margin: 0.8em 0; padding: 8px 16px; border-left: 4px solid var(--efm-color-main); background: rgba(0,0,0,0.03); }
.efm-app .efm-a-text img { max-width: 100%; height: auto; border-radius: 6px; margin: 0.4em 0; }
.efm-app .efm-a-text hr { border: none; border-top: 1px dashed var(--efm-color-border); margin: 1em 0; }
.efm-app .efm-a-text table { border-collapse: collapse; width: 100%; margin: 0.8em 0; font-size: 0.95em; }
.efm-app .efm-a-text th, .efm-app .efm-a-text td { border: 1px solid var(--efm-color-border); padding: 6px 10px; text-align: left; }
.efm-app .efm-a-text th { background: var(--efm-color-sub); font-weight: bold; }

@keyframes efm-slidedown {
	from { opacity: 0; transform: translateY(-4px); }
	to   { opacity: 1; transform: translateY(0); }
}

/* ===== 結果なし表示 ====================================================== */

.efm-app .efm-empty-result {
	padding: 40px 20px;
	text-align: center;
	color: var(--efm-color-q-text);
	opacity: 0.6;
	background: var(--efm-color-sub);
	border-radius: var(--efm-radius);
	font-size: 14px;
}

/* ===== レスポンシブ ====================================================== */

@media (max-width: 600px) {
	.efm-app .efm-q {
		flex-wrap: wrap;
		font-size: 14px;
	}
	.efm-app .efm-q-cat-badges {
		width: 100%;
		margin-left: 0;
		margin-top: 6px;
	}
	.efm-app .efm-cat-btn {
		font-size: 12px;
		padding: 5px 12px;
	}
	.efm-app .efm-search-input {
		font-size: 14px;
		padding: 10px 36px 10px 40px;
	}
}