/* =============================================================
   CHALLENGE BASE KAGOSHIMA 2026 — main.css
   モバイルファースト設計（min-width で拡張）
   配色ルール:
     白  = ベース背景・余白
     黒  = 本文
     赤  = CTA / 締切 / 重要ラベル（主役・限定使用）
     紺  = 見出し補助線 / タイムライン軸 / フッター（支える色）
   NG:
     赤背景の上にネイビー文字を置かない
     ネイビー背景の上に赤文字を多用しない
     赤とネイビーを同じ強さで全面にぶつけない
   ============================================================= */

/* -------------------------------------------------------------
   1. デザイントークン
   ------------------------------------------------------------- */
:root {
	--color-bg: #ffffff;
	--color-text: #1a1a1a;
	--color-text-soft: #4a4f57;
	--color-red: #e60012;          /* challenge red */
	--color-red-dark: #b8000e;
	--color-navy: #102a54;         /* deep navy */
	--color-navy-soft: #1c3a6e;
	--color-gray-50: #f7f8fa;
	--color-gray-100: #eef0f3;
	--color-gray-200: #e6e8ec;
	--color-gray-500: #6b7280;

	--font-jp: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", system-ui, sans-serif;

	--radius-sm: 6px;
	--radius-md: 12px;
	--radius-lg: 20px;
	--radius-pill: 999px;

	--container: 1120px;
	--header-h: 64px;

	--ease-out: cubic-bezier(.2, .7, .2, 1);
	--shadow-sm: 0 1px 3px rgba(16, 42, 84, .08);
	--shadow-md: 0 8px 24px rgba(16, 42, 84, .10);
	--shadow-lg: 0 16px 40px rgba(16, 42, 84, .14);
}

/* -------------------------------------------------------------
   2. ベース / リセット
   ------------------------------------------------------------- */
*,
*::before,
*::after {
	box-sizing: border-box;
}

html {
	scroll-behavior: smooth;
	-webkit-text-size-adjust: 100%;
	scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
	margin: 0;
	font-family: var(--font-jp);
	font-weight: 400;
	line-height: 1.85;
	color: var(--color-text);
	background: var(--color-bg);
	overflow-x: hidden;
	-webkit-font-smoothing: antialiased;
	text-rendering: optimizeLegibility;
}

img {
	max-width: 100%;
	height: auto;
	display: block;
}

a {
	color: inherit;
}

h1, h2, h3, h4, p, ul, ol, dl, dd, figure {
	margin: 0;
}

ul, ol {
	list-style: none;
	padding: 0;
}

/* 日本語の折り返しを美しく */
h1, h2, h3, .cbk-hero__lead, .cbk-feature__title, .cbk-cta__title {
	word-break: keep-all;
	overflow-wrap: anywhere;
	line-break: strict;
}

:focus-visible {
	outline: 3px solid var(--color-navy-soft);
	outline-offset: 2px;
	border-radius: 2px;
}

/* スキップリンク */
.cbk-skip-link {
	position: absolute;
	left: -9999px;
	top: 0;
	z-index: 1000;
	background: var(--color-navy);
	color: #fff;
	padding: 10px 16px;
	border-radius: 0 0 var(--radius-sm) 0;
}
.cbk-skip-link:focus {
	left: 0;
}

/* -------------------------------------------------------------
   3. レイアウトユーティリティ
   ------------------------------------------------------------- */
.cbk-container {
	width: 100%;
	max-width: var(--container);
	margin-inline: auto;
	padding-inline: clamp(1rem, 5vw, 2rem);
}

.cbk-section {
	padding-block: clamp(3.5rem, 9vw, 6.5rem);
	position: relative;
	overflow: hidden;
}

/* -------------------------------------------------------------
   装飾サークル（全セクション共通）
   ------------------------------------------------------------- */
.cbk-section::before,
.cbk-section::after {
	content: "";
	position: absolute;
	background-image: url('../images/deco-circle.png');
	background-size: contain;
	background-repeat: no-repeat;
	pointer-events: none;
	opacity: .06;
}

/* 各セクションで位置・サイズを個別設定 */
.cbk-overview::before {
	width: clamp(180px, 20vw, 280px);
	aspect-ratio: 1;
	top: -60px;
	right: -60px;
	opacity: .07;
}
.cbk-overview::after {
	width: clamp(120px, 12vw, 180px);
	aspect-ratio: 1;
	bottom: -40px;
	left: -40px;
	opacity: .05;
}

.cbk-schedule::before {
	width: clamp(200px, 22vw, 320px);
	aspect-ratio: 1;
	top: -80px;
	left: -80px;
	opacity: .06;
}
.cbk-schedule::after {
	width: clamp(140px, 14vw, 200px);
	aspect-ratio: 1;
	bottom: -50px;
	right: -50px;
	opacity: .05;
}

.cbk-contact::before {
	width: clamp(160px, 18vw, 260px);
	aspect-ratio: 1;
	top: -50px;
	right: -50px;
	opacity: .06;
}
.cbk-contact::after {
	display: none;
}

/* FEATURESセクション */
.cbk-features::before {
	width: clamp(160px, 18vw, 240px);
	aspect-ratio: 1;
	top: -50px;
	right: -50px;
	opacity: .07;
}
.cbk-features::after {
	display: none;
}

/* LEARNセクション */
.cbk-learn::before {
	width: clamp(180px, 20vw, 260px);
	aspect-ratio: 1;
	top: -60px;
	left: -60px;
	opacity: .06;
}
.cbk-learn::after {
	width: clamp(130px, 14vw, 190px);
	aspect-ratio: 1;
	bottom: -50px;
	right: -50px;
	opacity: .05;
}

.cbk-br-sp {
	display: inline;
}

/* セクション見出し */
.cbk-section__head {
	margin-bottom: clamp(2rem, 5vw, 3rem);
}

.cbk-section__label {
	display: inline-block;
	font-size: .8rem;
	font-weight: 700;
	letter-spacing: .18em;
	color: var(--color-navy-soft);
	margin-bottom: .6rem;
}

.cbk-section__title {
	font-size: clamp(1.6rem, 5vw, 2.4rem);
	font-weight: 900;
	line-height: 1.4;
	color: var(--color-navy);
	position: relative;
	padding-bottom: .8rem;
}
.cbk-section__title::after {
	content: "";
	position: absolute;
	left: 0;
	bottom: 0;
	width: 48px;
	height: 4px;
	border-radius: var(--radius-pill);
	background: var(--color-navy);
}

/* -------------------------------------------------------------
   4. ボタン
   ------------------------------------------------------------- */
.cbk-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: .5em;
	min-height: 48px;
	min-width: 48px;
	padding: .7rem 1.6rem;
	font-family: inherit;
	font-size: 1rem;
	font-weight: 700;
	line-height: 1.3;
	text-align: center;
	text-decoration: none;
	border-radius: var(--radius-pill);
	border: 2px solid transparent;
	cursor: pointer;
	transition: background-color .3s var(--ease-out),
		color .3s var(--ease-out),
		border-color .3s var(--ease-out),
		transform .3s var(--ease-out),
		box-shadow .3s var(--ease-out);
}

.cbk-btn--lg {
	min-height: 56px;
	padding: .9rem 2.2rem;
	font-size: 1.05rem;
}

/* 赤の主役ボタン（白文字） */
.cbk-btn--primary {
	background: var(--color-red);
	color: #fff;
	box-shadow: 0 6px 16px rgba(230, 0, 18, .22);
}
.cbk-btn--primary:hover,
.cbk-btn--primary:focus-visible {
	background: var(--color-red-dark);
	transform: translateY(-2px);
	box-shadow: 0 10px 22px rgba(230, 0, 18, .30);
}
.cbk-btn--primary:active {
	transform: translateY(0);
}

/* アウトライン（白背景・ネイビー） */
.cbk-btn--outline {
	background: #fff;
	color: var(--color-navy);
	border-color: var(--color-navy);
}
.cbk-btn--outline:hover,
.cbk-btn--outline:focus-visible {
	background: var(--color-navy);
	color: #fff;
	transform: translateY(-2px);
}

/* テキストリンク風 */
.cbk-btn--text {
	background: transparent;
	color: var(--color-navy);
	text-decoration: underline;
	text-underline-offset: 4px;
	padding-inline: .6rem;
	border-radius: var(--radius-sm);
}
.cbk-btn--text:hover,
.cbk-btn--text:focus-visible {
	color: var(--color-red);
}

/* -------------------------------------------------------------
   5. ヘッダー
   ------------------------------------------------------------- */
.cbk-header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: rgba(255, 255, 255, .92);
	backdrop-filter: saturate(160%) blur(8px);
	transition: background-color .3s var(--ease-out), box-shadow .3s var(--ease-out);
}
.cbk-header.is-scrolled {
	background: rgba(255, 255, 255, .98);
	box-shadow: var(--shadow-sm);
}

.cbk-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	min-height: var(--header-h);
}


.cbk-header__cta {
	display: none;
}

/* ナビ（モバイル：オフキャンバス） */
.cbk-nav__toggle {
	display: inline-flex;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	width: 48px;
	height: 48px;
	padding: 0;
	background: transparent;
	border: 0;
	cursor: pointer;
}
.cbk-nav__toggle-bar {
	display: block;
	width: 24px;
	height: 2px;
	margin-inline: auto;
	background: var(--color-navy);
	border-radius: 2px;
	transition: transform .3s var(--ease-out), opacity .2s var(--ease-out);
}
.cbk-nav__toggle[aria-expanded="true"] .cbk-nav__toggle-bar:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}
.cbk-nav__toggle[aria-expanded="true"] .cbk-nav__toggle-bar:nth-child(2) {
	opacity: 0;
}
.cbk-nav__toggle[aria-expanded="true"] .cbk-nav__toggle-bar:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

.cbk-nav__menu {
	position: fixed;
	inset: var(--header-h) 0 auto 0;
	display: flex;
	flex-direction: column;
	gap: .25rem;
	padding: 1rem clamp(1rem, 5vw, 2rem) 1.5rem;
	background: #fff;
	box-shadow: var(--shadow-md);
	transform: translateY(-12px);
	opacity: 0;
	visibility: hidden;
	transition: opacity .25s var(--ease-out), transform .25s var(--ease-out), visibility .25s;
}
.cbk-nav__menu.is-open {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}
.cbk-nav__menu > li > a {
	display: block;
	padding: .85rem .5rem;
	font-weight: 700;
	color: var(--color-navy);
	text-decoration: none;
	border-bottom: 1px solid var(--color-gray-200);
}
.cbk-nav__menu > li > a:hover {
	color: var(--color-red);
}
.cbk-nav__cta-mobile {
	margin-top: 1rem;
}
.cbk-nav__cta-mobile .cbk-btn {
	width: 100%;
}

/* SNSアイコン（ヘッダー） */
.cbk-header__social-link {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 48px;
	height: 48px;
	color: var(--color-navy);
	border-radius: 50%;
	transition: color .2s var(--ease-out), background .2s var(--ease-out);
	flex-shrink: 0;
}
.cbk-header__social-link:hover {
	color: #c13584;
	background: rgba(193, 53, 132, .08);
}
.cbk-header__social-link svg {
	fill: currentColor;
}

/* -------------------------------------------------------------
   6. ヒーロー
   ------------------------------------------------------------- */
.cbk-hero {
	position: relative;
	padding-block: clamp(4rem, 10vw, 7rem);
	background: var(--color-bg);
	overflow: hidden;
}

.cbk-hero__bg {
	position: absolute;
	inset: 0;
	pointer-events: none;
}

.cbk-hero__bg::before {
	content: "";
	position: absolute;
	inset: 0;
	background-image: url('../images/photo-sakurajima.jpg');
	background-size: cover;
	background-position: center 30%;
	opacity: .22;
}

/* 2カラムグリッド（モバイルは1カラム） */
.cbk-hero__inner {
	position: relative;
	display: grid;
	grid-template-columns: 1fr;
	gap: clamp(1.6rem, 4vw, 2.4rem);
	align-items: center;
}

/* 左カラム：テキスト */
.cbk-hero__text {
	display: flex;
	flex-direction: column;
	align-items: center;
	text-align: center;
}

.cbk-hero__program {
	font-size: clamp(.9rem, 2.3vw, 1rem);
	font-weight: 700;
	color: var(--color-navy);
	letter-spacing: .06em;
	margin-bottom: .8rem;
	display: inline-block;
}

.cbk-hero__copy {
	font-size: clamp(2.4rem, 8vw, 3.8rem);
	font-weight: 900;
	line-height: 1.25;
	color: var(--color-text);
	letter-spacing: .01em;
	margin-bottom: 2.4rem;
}

.cbk-hero__lead {
	display: none;
}

.cbk-hero__deadline {
	display: inline-flex;
	flex-wrap: wrap;
	align-items: baseline;
	gap: .2rem .7rem;
	padding: .75rem 1.4rem;
	border: 2px solid var(--color-red);
	border-radius: var(--radius-md);
	background: #fff;
	margin-bottom: 1.6rem;
	box-shadow: 0 2px 12px rgba(230, 0, 18, .1);
}
.cbk-hero__deadline-label {
	font-size: .82rem;
	font-weight: 700;
	color: var(--color-red);
}
.cbk-hero__deadline-date {
	font-size: clamp(1rem, 3.4vw, 1.3rem);
	font-weight: 900;
	color: var(--color-red);
}

.cbk-hero__cta {
	display: flex;
	flex-wrap: wrap;
	gap: .9rem;
	margin-bottom: 1.4rem;
	justify-content: center;
}
.cbk-hero__cta .cbk-btn {
	flex: 0 1 auto;
	min-width: 180px;
}

.cbk-hero__org {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: center;
	gap: .8rem 2rem;
	padding-top: .8rem;
	border-top: 1px solid var(--color-gray-200);
	width: 100%;
}
.cbk-hero__org-item {
	display: flex;
	align-items: center;
	gap: .5rem;
}
.cbk-hero__org-label {
	font-size: .9rem;
	font-weight: 700;
	color: var(--color-gray-500);
	padding: .1rem .55rem;
	background: var(--color-gray-100);
	border-radius: var(--radius-pill);
}
.cbk-hero__org-text {
	font-size: 1.08rem;
	font-weight: 700;
	color: var(--color-navy);
}
.cbk-hero__org-text a {
	color: var(--color-navy);
}
.cbk-hero__org-text a:hover {
	color: var(--color-red);
}

/* 右カラム：ロゴビジュアル */
.cbk-hero__visual {
	order: -1; /* モバイルではロゴを上に */
	display: flex;
	align-items: center;
	justify-content: center;
}

.cbk-hero__visual-frame {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 100%;
}

.cbk-hero__logo {
	width: min(100%, 380px);
	max-height: 560px;
	height: auto;
	object-fit: contain;
	margin-inline: auto;
	display: block;
}

/* 旧クラス（安全ネット） */
.cbk-hero__media { position: relative; }
.cbk-hero__photo {
	width: 100%;
	aspect-ratio: 3 / 2;
	object-fit: cover;
	border-radius: var(--radius-lg);
	box-shadow: var(--shadow-lg);
}

/* -------------------------------------------------------------
   7. 概要
   ------------------------------------------------------------- */
.cbk-overview {
	background: var(--color-gray-50);
}
.cbk-overview__body {
	display: flex;
	flex-direction: column;
	gap: clamp(2rem, 5vw, 3rem);
}
.cbk-overview__text > p + p {
	margin-top: 1.2rem;
}
.cbk-overview__notes {
	margin-top: 1.6rem;
	font-size: .82rem;
	line-height: 1.7;
	color: var(--color-gray-500);
}
.cbk-overview__notes p + p {
	margin-top: .3rem;
}
.cbk-overview__photo {
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: center 20%;
	border-radius: var(--radius-md);
	box-shadow: var(--shadow-md);
	display: block;
}

/* -------------------------------------------------------------
   8. 3つの特徴（吹き出しカード）
   ------------------------------------------------------------- */
.cbk-features__list {
	display: grid;
	grid-template-columns: 1fr;
	gap: clamp(2.2rem, 5vw, 2.6rem);
}

.cbk-feature {
	background: #fff;
	border: 1px solid var(--color-gray-200);
	border-radius: var(--radius-lg);
	padding: 2.4rem 1.6rem 1.8rem;
	text-align: center;
	box-shadow: var(--shadow-sm);
	position: relative;
}

/* 吹き出しのしっぽ */
.cbk-feature__bubble {
	display: flex;
	justify-content: center;
	margin-top: -3.6rem;
	margin-bottom: 1rem;
}
.cbk-feature__icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 76px;
	height: 76px;
	color: var(--color-navy);
	background: #fff;
	border: 2px solid var(--color-navy);
	border-radius: 50% 50% 50% 8px;
	box-shadow: var(--shadow-sm);
}
.cbk-feature__icon svg {
	width: 40px;
	height: 40px;
}

.cbk-feature__title {
	font-size: 1.15rem;
	font-weight: 900;
	line-height: 1.5;
	color: var(--color-navy);
	margin-bottom: .8rem;
}
.cbk-feature__text {
	font-size: .96rem;
	color: var(--color-text-soft);
	text-align: left;
}

/* -------------------------------------------------------------
   9. 学べること
   ------------------------------------------------------------- */
.cbk-learn__body {
	display: flex;
	flex-direction: column;
	gap: clamp(1.6rem, 4vw, 2.5rem);
}
.cbk-learn__list {
	display: grid;
	grid-template-columns: 1fr;
	gap: .9rem;
}
.cbk-learn__item {
	display: flex;
	align-items: flex-start;
	gap: .9rem;
	padding: 1.1rem 1.2rem;
	background: var(--color-gray-50);
	border-radius: var(--radius-md);
	border-left: 4px solid var(--color-navy);
}
.cbk-learn__check {
	flex: 0 0 auto;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 28px;
	height: 28px;
	color: #fff;
	background: var(--color-navy);
	border-radius: 50%;
}
.cbk-learn__check svg {
	width: 16px;
	height: 16px;
}
.cbk-learn__text {
	font-weight: 500;
	padding-top: .1rem;
}
.cbk-learn__photo {
	width: 100%;
	aspect-ratio: 3 / 2;
	object-fit: cover;
	border-radius: var(--radius-md);
	box-shadow: var(--shadow-md);
}

/* -------------------------------------------------------------
   10. スケジュール（フェーズ付きタイムライン）
   ------------------------------------------------------------- */
.cbk-schedule {
	background: var(--color-gray-50);
}
.cbk-schedule__note {
	background: #fff;
	border: 1px solid var(--color-gray-200);
	border-radius: var(--radius-md);
	padding: 1.2rem 1.4rem;
	margin-bottom: clamp(2rem, 5vw, 3rem);
	font-size: .92rem;
	color: var(--color-text-soft);
}

/* ── タイムライン全体 ── */
.cbk-timeline {
	display: flex;
	flex-direction: column;
	gap: clamp(2rem, 5vw, 2.8rem);
}

/* ── フェーズブロック ── */
.cbk-timeline__phase {
	background: #fff;
	border-radius: var(--radius-lg);
	padding: clamp(1.2rem, 3vw, 1.8rem) clamp(1.2rem, 3vw, 2rem);
	border-top: 4px solid var(--color-navy);
	box-shadow: var(--shadow-sm);
}
.cbk-timeline__phase--red {
	border-top-color: var(--color-red);
}
.cbk-timeline__phase--navy {
	border-top-color: var(--color-navy);
}

/* フェーズラベル */
.cbk-timeline__phase-label {
	display: inline-block;
	font-size: .75rem;
	font-weight: 700;
	letter-spacing: .06em;
	text-transform: uppercase;
	color: #fff;
	background: var(--color-navy);
	padding: .2rem .75rem;
	border-radius: var(--radius-pill);
	margin-bottom: 1.2rem;
}
.cbk-timeline__phase--red .cbk-timeline__phase-label {
	background: var(--color-red);
}

/* ── ノード一覧（モバイル: 縦積み） ── */
.cbk-timeline__items {
	position: relative;
	display: flex;
	flex-direction: column;
	gap: 0;
}

/* 縦ライン（モバイル） */
.cbk-timeline__items::before {
	content: "";
	position: absolute;
	left: 9px;
	top: 10px;
	bottom: 10px;
	width: 2px;
	background: var(--color-gray-200);
}
.cbk-timeline__phase--red .cbk-timeline__items::before {
	background: rgba(230, 0, 18, .2);
}

/* ── 各ノード ── */
.cbk-timeline__item {
	position: relative;
	display: flex;
	align-items: flex-start;
	gap: 1rem;
	padding: .9rem 0 .9rem 0;
}
.cbk-timeline__item + .cbk-timeline__item {
	border-top: 1px dashed var(--color-gray-200);
}

/* ドット */
.cbk-timeline__dot {
	flex: 0 0 auto;
	width: 20px;
	height: 20px;
	border-radius: 50%;
	background: var(--color-navy);
	border: 3px solid #fff;
	box-shadow: 0 0 0 2px var(--color-navy);
	position: relative;
	z-index: 1;
	margin-top: .15rem;
}
.cbk-timeline__phase--red .cbk-timeline__dot {
	background: var(--color-red);
	box-shadow: 0 0 0 2px var(--color-red);
}
.cbk-timeline__item.is-key .cbk-timeline__dot {
	width: 22px;
	height: 22px;
	background: var(--color-red);
	box-shadow: 0 0 0 3px var(--color-red), 0 0 0 5px rgba(230, 0, 18, .18);
}

/* ノード本文 */
.cbk-timeline__body {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: .25rem .6rem;
	flex: 1;
}
.cbk-timeline__date {
	font-size: clamp(.88rem, 2.5vw, 1rem);
	font-weight: 900;
	color: var(--color-navy);
	white-space: nowrap;
}
.cbk-timeline__phase--red .cbk-timeline__date,
.cbk-timeline__item.is-key .cbk-timeline__date {
	color: var(--color-red);
}
.cbk-timeline__event {
	font-size: clamp(.88rem, 2.5vw, .98rem);
	font-weight: 700;
	color: var(--color-text);
}
.cbk-timeline__time {
	font-size: .78rem;
	color: var(--color-text-soft);
	white-space: nowrap;
	width: 100%;
}
.cbk-timeline__badge {
	display: inline-block;
	font-size: .7rem;
	font-weight: 700;
	color: #fff;
	background: var(--color-red);
	padding: .1rem .45rem;
	border-radius: var(--radius-pill);
	letter-spacing: .04em;
	vertical-align: middle;
}

/* -------------------------------------------------------------
   11. プログラム要項（定義リスト）
   ------------------------------------------------------------- */
.cbk-reqlist {
	display: flex;
	flex-direction: column;
	gap: 1rem;
}
.cbk-reqlist__row {
	display: flex;
	flex-direction: column;
	gap: .5rem;
	padding: 1.4rem 1.4rem;
	background: #fff;
	border: 1px solid var(--color-gray-200);
	border-radius: var(--radius-md);
}
.cbk-reqlist__term {
	display: inline-block;
	align-self: flex-start;
	font-weight: 700;
	color: #fff;
	background: var(--color-navy);
	padding: .3rem 1rem;
	border-radius: var(--radius-pill);
	font-size: .92rem;
}
.cbk-reqlist__desc > p + p {
	margin-top: .5rem;
}
.cbk-reqlist__lead {
	font-size: 1.3rem;
	font-weight: 900;
	color: var(--color-red);
}

/* -------------------------------------------------------------
   12. こんな人におすすめ（ターゲットアイコン）
   ------------------------------------------------------------- */
.cbk-target__list {
	display: grid;
	grid-template-columns: 1fr;
	gap: 1rem;
}
.cbk-target__item {
	display: flex;
	align-items: center;
	gap: 1rem;
	padding: 1.1rem 1.3rem;
	background: #fff;
	border: 1px solid var(--color-gray-200);
	border-radius: var(--radius-md);
	box-shadow: var(--shadow-sm);
}
.cbk-target__icon {
	flex: 0 0 auto;
	display: inline-flex;
	color: var(--color-red);
}
.cbk-target__icon svg {
	width: 34px;
	height: 34px;
}
.cbk-target__text {
	font-weight: 500;
}

/* -------------------------------------------------------------
   13. CTA セクション
   ------------------------------------------------------------- */
.cbk-cta {
	background:
		radial-gradient(circle at 50% 0%, rgba(16, 42, 84, .05), transparent 55%),
		var(--color-gray-50);
}
.cbk-cta__inner {
	text-align: center;
	max-width: 720px;
}
.cbk-cta__title {
	font-size: clamp(1.6rem, 6vw, 2.6rem);
	font-weight: 900;
	line-height: 1.4;
	color: var(--color-navy);
	margin-bottom: 1rem;
}
.cbk-cta__text {
	color: var(--color-text-soft);
	margin-bottom: 2rem;
}
.cbk-cta__buttons {
	display: flex;
	flex-direction: column;
	gap: .9rem;
	align-items: stretch;
}

/* -------------------------------------------------------------
   14. お問い合わせ
   ------------------------------------------------------------- */
.cbk-contact__inner {
	display: flex;
	flex-direction: column;
	gap: clamp(2rem, 5vw, 3rem);
}
.cbk-contact__org {
	font-size: 1.1rem;
	font-weight: 900;
	color: var(--color-navy);
	margin-bottom: .3rem;
}
.cbk-contact__org a {
	text-decoration: none;
}
.cbk-contact__org a:hover {
	color: var(--color-red);
}
.cbk-contact__dept {
	font-size: .9rem;
	font-weight: 700;
	color: var(--color-text-soft);
	margin-bottom: 1.4rem;
}
.cbk-contact__details {
	list-style: none;
	display: flex;
	flex-direction: column;
	gap: .9rem;
	margin-bottom: 1.8rem;
	padding: 0;
}
.cbk-contact__details-item {
	display: flex;
	align-items: center;
	gap: .6rem;
	flex-wrap: wrap;
}
.cbk-contact__icon {
	flex: 0 0 auto;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 32px;
	height: 32px;
	background: var(--color-navy);
	color: #fff;
	border-radius: 50%;
}
.cbk-contact__icon svg {
	width: 15px;
	height: 15px;
}
.cbk-contact__details a {
	font-weight: 700;
	color: var(--color-navy);
	text-decoration: none;
	overflow-wrap: anywhere;
}
.cbk-contact__details a:hover {
	color: var(--color-red);
	text-decoration: underline;
}
.cbk-contact__note {
	font-size: .82rem;
	color: var(--color-gray-500);
}
.cbk-contact__note-block {
	font-size: .92rem;
	color: var(--color-text-soft);
	border-left: 3px solid var(--color-gray-200);
	padding-left: 1rem;
	margin-top: .4rem;
}
.cbk-contact__note-block p + p {
	margin-top: .4rem;
}
.cbk-contact__lead {
	font-size: .95rem;
	color: var(--color-text-soft);
}
.cbk-contact__buttons {
	display: flex;
	flex-direction: column;
	gap: .8rem;
	margin-top: 1.6rem;
}

/* お問い合わせフォーム（Contact Form 7） */
.cbk-contact__form {
	width: 100%;
	max-width: 640px;
	margin-inline: auto;
	padding: clamp(1.4rem, 5vw, 2.5rem);
	background: var(--color-gray-50);
	border: 1px solid var(--color-gray-200);
	border-radius: var(--radius-lg);
}
.cbk-contact__form .wpcf7 {
	font-size: 1rem;
}
.cbk-contact__form p {
	margin-bottom: 1rem;
}
.cbk-contact__form label {
	display: block;
	font-weight: 700;
	color: var(--color-navy);
	margin-bottom: .3rem;
}
.cbk-contact__form input[type="text"],
.cbk-contact__form input[type="email"],
.cbk-contact__form input[type="tel"],
.cbk-contact__form input[type="url"],
.cbk-contact__form input[type="number"],
.cbk-contact__form input[type="date"],
.cbk-contact__form select,
.cbk-contact__form textarea {
	width: 100%;
	font-family: inherit;
	font-size: 1rem; /* 16px以上：iOSズーム防止 */
	color: var(--color-text);
	background: #fff;
	border: 1px solid var(--color-gray-200);
	border-radius: var(--radius-sm);
	padding: .75rem 1rem;
	transition: border-color .25s var(--ease-out), box-shadow .25s var(--ease-out);
}
.cbk-contact__form textarea {
	min-height: 140px;
	resize: vertical;
}
.cbk-contact__form input:focus,
.cbk-contact__form select:focus,
.cbk-contact__form textarea:focus {
	outline: none;
	border-color: var(--color-navy);
	box-shadow: 0 0 0 3px rgba(16, 42, 84, .12);
}
.cbk-contact__form .wpcf7-not-valid {
	border-color: var(--color-red);
}
.cbk-contact__form .wpcf7-not-valid-tip {
	color: var(--color-red);
	font-size: .85rem;
	font-weight: 700;
}
.cbk-contact__form .wpcf7-required,
.cbk-contact__form .required {
	color: var(--color-red);
}
.cbk-contact__form .wpcf7-submit {
	width: 100%;
	min-height: 52px;
	margin-top: .5rem;
	font-family: inherit;
	font-size: 1.05rem;
	font-weight: 700;
	color: #fff;
	background: var(--color-red);
	border: 0;
	border-radius: var(--radius-pill);
	cursor: pointer;
	transition: background-color .3s var(--ease-out), transform .3s var(--ease-out);
}
.cbk-contact__form .wpcf7-submit:hover,
.cbk-contact__form .wpcf7-submit:focus-visible {
	background: var(--color-red-dark);
	transform: translateY(-2px);
}
.cbk-contact__form .wpcf7-response-output {
	border-radius: var(--radius-sm);
	font-size: .9rem;
}

/* -------------------------------------------------------------
   15. フッター（ネイビー背景・白文字）
   ------------------------------------------------------------- */
.cbk-footer {
	background: var(--color-navy);
	color: rgba(255, 255, 255, .92);
}
.cbk-footer__inner {
	display: flex;
	flex-direction: column;
	gap: 2rem;
	padding-block: clamp(2.5rem, 6vw, 3.5rem);
}
.cbk-footer__title {
	font-size: 1.2rem;
	font-weight: 900;
	color: #fff;
	letter-spacing: .02em;
}
.cbk-footer__subtitle {
	font-size: .92rem;
	color: rgba(255, 255, 255, .8);
	margin-top: .3rem;
	margin-bottom: 1.4rem;
}
.cbk-footer__meta {
	display: flex;
	flex-direction: column;
	gap: .6rem;
}
.cbk-footer__meta > div {
	display: flex;
	align-items: baseline;
	gap: .8rem;
}
.cbk-footer__meta dt {
	flex: 0 0 auto;
	min-width: 3em;
	font-size: .8rem;
	font-weight: 700;
	color: rgba(255, 255, 255, .7);
}
.cbk-footer__meta dd {
	margin: 0;
	font-weight: 700;
	color: #fff;
}
.cbk-footer__meta a {
	color: #fff;
	text-decoration: underline;
	text-underline-offset: 3px;
}
.cbk-footer__meta a:hover {
	opacity: .8;
}
.cbk-footer__action .cbk-btn {
	width: 100%;
}
.cbk-footer__bottom {
	border-top: 1px solid rgba(255, 255, 255, .15);
}
.cbk-footer__copyright {
	max-width: var(--container);
	margin-inline: auto;
	padding: 1.2rem clamp(1rem, 5vw, 2rem);
	font-size: .8rem;
	color: rgba(255, 255, 255, .65);
	text-align: center;
}

/* SNSアイコン（フッター） */
.cbk-footer__social {
	margin-top: 1.4rem;
	display: flex;
	gap: .6rem;
}
.cbk-footer__social-link {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 42px;
	height: 42px;
	color: rgba(255, 255, 255, .8);
	border: 1px solid rgba(255, 255, 255, .3);
	border-radius: 50%;
	transition: color .2s var(--ease-out), border-color .2s var(--ease-out), background .2s var(--ease-out);
}
.cbk-footer__social-link:hover {
	color: #fff;
	border-color: rgba(255, 255, 255, .8);
	background: rgba(255, 255, 255, .12);
}
.cbk-footer__social-link svg {
	fill: currentColor;
}

/* -------------------------------------------------------------
   16. アニメーション
   ------------------------------------------------------------- */
/* スクロールフェードイン */
.cbk-reveal {
	opacity: 0;
	transform: translateY(24px);
	transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
	will-change: opacity, transform;
}
.cbk-reveal.is-visible {
	opacity: 1;
	transform: none;
}


/* 浮遊感（線画・吹き出しアイコン） */
@keyframes cbk-float {
	0%, 100% { transform: translateY(0); }
	50% { transform: translateY(-6px); }
}
.cbk-float {
	animation: cbk-float 3.4s ease-in-out infinite;
}

/* 動きを減らす設定への配慮 */
@media (prefers-reduced-motion: reduce) {
	html {
		scroll-behavior: auto;
	}
	.cbk-reveal {
		opacity: 1;
		transform: none;
		transition: none;
	}
	.cbk-float {
		animation: none;
	}
	.cbk-btn {
		transition: background-color .2s ease;
	}
	.cbk-btn:hover {
		transform: none;
	}
}

/* -------------------------------------------------------------
   17. レスポンシブ（min-width で拡張）
   ------------------------------------------------------------- */

/* --- 768px〜：大型スマホ・縦タブレット --- */
@media (min-width: 768px) {
	.cbk-br-sp {
		display: none;
	}

	/* ヘッダー：Instagramとナビを左まとめ、CTAを右端に */
	.cbk-header__inner {
		justify-content: flex-start;
	}
	.cbk-header__cta {
		margin-left: auto;
	}

	/* ナビを横並びに */
	.cbk-nav__toggle {
		display: none;
	}
	.cbk-nav__menu {
		position: static;
		flex-direction: row;
		align-items: center;
		gap: .8rem;
		padding: 0;
		background: transparent;
		box-shadow: none;
		transform: none;
		opacity: 1;
		visibility: visible;
	}
	.cbk-nav__menu > li > a {
		padding: .5rem 1.2rem;
		border-bottom: 0;
		font-size: .95rem;
		border-radius: var(--radius-sm);
	}
	.cbk-nav__cta-mobile {
		display: none;
	}
	.cbk-header__cta {
		display: inline-flex;
	}

	/* 3つの特徴：2カラム */
	.cbk-features__list {
		grid-template-columns: repeat(2, 1fr);
	}

	/* 学べること：2カラムリスト */
	.cbk-learn__list {
		grid-template-columns: repeat(2, 1fr);
	}

	/* こんな人に：2カラム */
	.cbk-target__list {
		grid-template-columns: repeat(2, 1fr);
	}

	/* 要項：dt / dd 横並び */
	.cbk-reqlist__row {
		flex-direction: row;
		gap: 1.5rem;
		align-items: flex-start;
		padding: 1.6rem 1.8rem;
	}
	.cbk-reqlist__term {
		flex: 0 0 7.5rem;
		text-align: center;
	}
	.cbk-reqlist__desc {
		flex: 1 1 auto;
	}

	/* CTAボタン横並び */
	.cbk-cta__buttons {
		flex-direction: row;
		justify-content: center;
	}
	.cbk-cta__buttons .cbk-btn {
		flex: 0 1 auto;
		min-width: 220px;
	}

	/* 問い合わせボタン横並び */
	.cbk-contact__buttons {
		flex-direction: row;
		flex-wrap: wrap;
		align-items: center;
	}

	/* スケジュール：768px以上で横並びタイムライン */
	.cbk-timeline {
		flex-direction: row;
		align-items: stretch;
		gap: 0;
	}
	.cbk-timeline__phase {
		flex: 1 1 0;
		border-top: none;
		border-left: 4px solid var(--color-navy);
		border-radius: 0;
		padding: 1.4rem 1.2rem 1.4rem 1.4rem;
	}
	.cbk-timeline__phase:first-child {
		border-radius: var(--radius-lg) 0 0 var(--radius-lg);
	}
	.cbk-timeline__phase:last-child {
		border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
	}
	.cbk-timeline__phase--red {
		border-left-color: var(--color-red);
	}
	/* 横並び時は縦ラインを非表示・縦積みのまま */
	.cbk-timeline__items {
		flex-direction: column;
	}
	.cbk-timeline__items::before {
		left: 9px;
	}

	/* ヒーローCTAボタンを内容幅に */
	.cbk-hero__cta .cbk-btn {
		flex: 0 1 auto;
		min-width: 200px;
	}

	/* フッター2カラム */
	.cbk-footer__inner {
		flex-direction: row;
		align-items: center;
		justify-content: space-between;
	}
	.cbk-footer__action .cbk-btn {
		width: auto;
		min-width: 220px;
	}
}

/* --- 1024px〜：横タブレット・PC --- */
@media (min-width: 1024px) {
	/* ヒーロー：2カラムグリッド */
	.cbk-hero__inner {
		grid-template-columns: 58fr 42fr;
		gap: clamp(1.5rem, 3vw, 2.5rem);
	}

	/* PC ではロゴを右カラムに戻す */
	.cbk-hero__visual {
		order: 0;
	}

	/* PC ではテキストを左揃え・左側に余白を追加して右へ寄せる */
	.cbk-hero__text {
		align-items: flex-start;
		text-align: left;
		padding-inline-start: clamp(1.5rem, 4vw, 3.5rem);
	}

	.cbk-hero__cta {
		justify-content: flex-start;
		flex-wrap: nowrap;
	}

	.cbk-hero__org {
		justify-content: flex-start;
	}

	.cbk-hero__deadline {
		margin-inline: 0;
	}

	.cbk-hero__copy {
		font-size: clamp(2.4rem, 4.8vw, 3.8rem);
	}

	/* 縦型ロゴ：PC幅に合わせたサイズ */
	.cbk-hero__logo {
		width: min(100%, 460px);
		max-height: 660px;
	}

	/* 概要：テキスト＋写真の2カラム */
	.cbk-overview__body {
		flex-direction: row;
		align-items: flex-start;
	}
	.cbk-overview__text {
		flex: 1 1 65%;
		min-width: 0;
	}
	.cbk-overview__media {
		flex: 0 0 35%;
		max-width: 35%;
		min-width: 0;
		align-self: stretch;
	}
	.cbk-overview__media--sticky {
		position: sticky;
		top: 5rem;
	}

	/* 3つの特徴：横3カラム */
	.cbk-features__list {
		grid-template-columns: repeat(3, 1fr);
	}

	/* 学べること：リスト＋写真の2カラム */
	.cbk-learn__body {
		flex-direction: row;
		align-items: center;
	}
	.cbk-learn__list {
		flex: 1 1 58%;
		min-width: 0;
	}
	.cbk-learn__media {
		flex: 1 1 42%;
		min-width: 0;
	}

	/* お問い合わせ：情報＋フォームの2カラム */
	.cbk-contact__inner {
		flex-direction: row;
		align-items: flex-start;
		gap: clamp(2.5rem, 5vw, 5rem);
	}
	.cbk-contact__info {
		flex: 1 1 38%;
		min-width: 0;
	}
	.cbk-contact__form {
		flex: 1 1 55%;
		min-width: 0;
		max-width: none;
		margin-inline: 0;
	}

}