/* 講師プロフィール モーダル（Shadowbox 代替）
 * 注意: <dialog> に display:flex 等を当てると iOS Safari で非表示になることがある
 * 幅は 100vw ではなく % / svw を使う（iOS で横ずれしやすいため）
 */

html.teacher-modal-open {
	overflow: hidden;
}

.teacher-modal {
	margin: auto;
	padding: 0;
	border: 0;
	background: transparent;
	overflow: visible;
	box-sizing: border-box;
	color: inherit;
	width: min(740px, 92vw);
	max-width: 92vw;
}

.teacher-modal::backdrop {
	background: rgba(0, 0, 0, 0.55);
}

.teacher-modal__panel {
	display: flex;
	flex-direction: column;
	width: 100%;
	height: min(600px, calc(100vh - 32px));
	height: min(600px, calc(100dvh - 32px));
	box-sizing: border-box;
	border: 2px solid #666;
	border-radius: 10px;
	overflow: hidden;
	background: #fff;
	box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.teacher-modal__body {
	flex: 1 1 auto;
	min-height: 0;
	overflow: hidden;
	background: #fff;
}

.teacher-modal__frame {
	display: block;
	width: 100%;
	height: 100%;
	min-height: 0;
	border: 0;
	background: #fff;
}

.teacher-modal__footer {
	display: grid;
	grid-template-columns: 1fr auto auto auto 1fr;
	align-items: center;
	flex-shrink: 0;
	min-height: 36px;
	padding: 4px 8px;
	background: #1d2a4a;
	color: #fff;
	font-size: 14px;
	line-height: 1;
}

.teacher-modal__nav {
	width: 28px;
	height: 26px;
	padding: 0;
	border: 0;
	border-radius: 3px;
	background: transparent;
	color: #fff;
	font-size: 14px;
	line-height: 1;
	cursor: pointer;
}

.teacher-modal__nav--prev {
	grid-column: 2;
}

.teacher-modal__nav--next {
	grid-column: 4;
}

.teacher-modal__nav:hover:not(:disabled) {
	background: rgba(255, 255, 255, 0.15);
}

.teacher-modal__nav:disabled {
	opacity: 0.35;
	cursor: default;
}

.teacher-modal__counter {
	grid-column: 3;
	padding: 0 10px;
	white-space: nowrap;
	text-align: center;
	font-size: 14px;
}

.teacher-modal__close {
	grid-column: 5;
	justify-self: end;
	padding: 4px 8px;
	border: 0;
	border-radius: 3px;
	background: transparent;
	color: #fff;
	font-size: 14px;
	line-height: 1;
	cursor: pointer;
}

.teacher-modal__close:hover {
	background: rgba(255, 255, 255, 0.15);
}

/* スマホ: 水平中央・上下 15% 余白（ポップアップ高さ 70%） */
@media (max-width: 520px) {
	.teacher-modal {
		width: 92vw;
		max-width: 92vw;
		margin: 15vh auto;
		margin: 15dvh auto;
	}

	.teacher-modal__panel {
		height: 70vh;
		height: 70dvh;
		border-radius: 10px;
		box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
	}
}