/* ==========================================================================
   lesson.css — LESSON（/lesson/）
   ========================================================================== */

/* レッスンについて
   ----------------------------------------------------------------------- */
.lesson-intro__body {
	max-width: 760px;
	margin-inline: auto;
}

.lesson-intro__title {
	margin-bottom: 24px;
	font-size: clamp(1.25rem, 1.05rem + 0.9vw, 1.75rem);
	font-weight: 700;
	line-height: 1.7;
	text-align: center;
}

.lesson-intro__text {
	color: #3a403c;
}

@media (min-width: 768px) {
	.lesson-intro__text {
		text-align: center;
	}
}

/* レッスンメニュー
   ----------------------------------------------------------------------- */
.lesson-menu__list {
	display: grid;
	gap: 24px;
}

@media (min-width: 768px) {
	.lesson-menu__list {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (min-width: 1024px) {
	.lesson-menu__list--3 {
		grid-template-columns: repeat(3, minmax(0, 1fr));
	}

	.lesson-menu__list--4 {
		grid-template-columns: repeat(4, minmax(0, 1fr));
	}
}

.lesson-menu__note {
	margin-top: 32px;
	font-size: 0.8125rem;
	color: var(--color-text-sub);
}

.lesson-menu__studio {
	margin-top: 16px;
}

/* レッスンの流れ（SP: 縦のタイムライン / PC: 横並び）
   ----------------------------------------------------------------------- */
.flow {
	display: grid;
}

.flow__step {
	position: relative;
	padding: 0 0 32px 48px;
}

.flow__step::before {
	content: "";
	position: absolute;
	top: 8px;
	left: 6px;
	width: 12px;
	height: 12px;
	background: var(--color-accent);
	border-radius: 50%;
}

.flow__step:not(:last-child)::after {
	content: "";
	position: absolute;
	top: 26px;
	bottom: 4px;
	left: 11px;
	width: 1px;
	background: #c9cfca;
}

.flow__num {
	font-family: var(--font-num);
	font-size: 2rem;
	font-style: italic;
	font-weight: 200;
	line-height: 1;
	color: var(--color-primary);
}

.flow__num span {
	margin-right: 6px;
	font-family: var(--font-en);
	font-size: 0.6875rem;
	font-style: normal;
	font-weight: 500;
	letter-spacing: 0.15em;
	vertical-align: middle;
}

.flow__title {
	margin-top: 8px;
	font-size: 1.0625rem;
}

.flow__text {
	margin-top: 6px;
	font-size: 0.875rem;
	color: #3a403c;
}

@media (min-width: 1024px) {
	.flow {
		grid-template-columns: repeat(5, minmax(0, 1fr));
		gap: 24px;
	}

	.flow__step {
		padding: 36px 0 0;
	}

	.flow__step::before {
		top: 0;
		left: 0;
	}

	.flow__step:not(:last-child)::after {
		top: 6px;
		right: -24px;
		bottom: auto;
		left: 20px;
		width: auto;
		height: 1px;
	}
}

/* 初めての方へ
   ----------------------------------------------------------------------- */
.lesson-first {
	overflow: hidden;
}

.lesson-first__grid {
	display: grid;
	gap: 40px;
}

.lesson-first__list {
	display: grid;
	gap: 16px;
}

.lesson-first__item {
	padding: 24px;
	background: var(--color-bg);
}

.lesson-first__title {
	margin-bottom: 8px;
	font-weight: 700;
	color: var(--color-primary);
}

.lesson-first__text {
	margin: 0;
	font-size: 0.875rem;
}

.lesson-first__pose {
	display: none;
}

@media (min-width: 768px) {
	.lesson-first__list {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (min-width: 1024px) {
	.lesson-first__grid {
		grid-template-columns: 1fr 280px;
		align-items: end;
	}

	/* 切り抜き人物の下端をセクション境界にかぶせる */
	.lesson-first__pose {
		display: block;
		width: 100%;
		height: auto;
		margin-bottom: calc(var(--section-space) * -1);
	}
}