/* ============================================================
   つかさラーニングセンター 公式サイト  style.css
   目次
     1. 変数 / リセット / ベース
     2. レイアウト共通（container / section / 見出し）
     3. ボタン
     4. ヘッダー / ナビゲーション
     5. ファーストビュー
     6. INTRO
     6-2. 3つの専門部門（OUR DIVISIONS）
     7. サービスカード（部門詳細）
     8. 強み
     9. 制作実績（WORKS）
    10. 料金
    11. 制作の流れ
    12. プロフィール
    13. FAQ
    14. お問い合わせフォーム
    15. 最終CTA
    16. フッター
    17. スクロールアニメーション
    18. レスポンシブ
   ============================================================ */

/* ============ 1. 変数 / リセット / ベース ============ */
:root {
  --color-white: #ffffff;
  --color-bg: #ffffff;
  --color-bg-muted: #f4f6f9;
  --color-navy: #16233d;
  --color-navy-deep: #101a30;
  --color-charcoal: #333941;
  --color-text: #2b303a;
  --color-text-muted: #5b6470;
  --color-accent: #2563c9;
  --color-accent-dark: #1c4ea3;
  --color-border: #e2e6ec;
  --color-placeholder: #dfe3e9;

  --container: 1120px;
  --container-narrow: 760px;
  --radius: 10px;
  --shadow-sm: 0 1px 3px rgba(16, 26, 48, 0.06), 0 1px 2px rgba(16, 26, 48, 0.04);
  --shadow-md: 0 10px 30px rgba(16, 26, 48, 0.08);
  --transition: 0.25s ease;

  --font-base: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN",
    "Yu Gothic", Meiryo, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px; /* 固定ヘッダー分 */
}

body {
  margin: 0;
  font-family: var(--font-base);
  font-size: 17px;
  line-height: 1.9;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent-dark);
}

h1,
h2,
h3 {
  line-height: 1.5;
  font-weight: 700;
  color: var(--color-charcoal);
}

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

/* スクリーンリーダー向けの視覚的非表示 */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* 本文へスキップリンク（アクセシビリティ / SEO） */
.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 2000;
  padding: 10px 18px;
  background-color: var(--color-navy);
  color: var(--color-white);
  border-radius: 0 0 var(--radius) var(--radius);
  font-size: 0.9rem;
  font-weight: 700;
  transition: top var(--transition);
}

.skip-link:focus {
  top: 0;
  color: var(--color-white);
  outline: 2px solid var(--color-accent);
}

/* パンくずリスト */
.breadcrumb {
  margin-bottom: 24px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.breadcrumb a {
  color: var(--color-text-muted);
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

/* ============ 2. レイアウト共通 ============ */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding: 104px 0;
}

.section--muted {
  background-color: var(--color-bg-muted);
}

.section__head {
  text-align: center;
  margin-bottom: 56px;
}

.section__label {
  margin: 0 0 12px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--color-accent);
}

.section__title {
  margin: 0;
  font-size: 1.85rem;
}

.section__desc {
  margin: 18px auto 0;
  max-width: 620px;
  color: var(--color-text-muted);
  font-size: 1rem;
}

/* 部門詳細セクションのキャッチコピー */
.section__catch {
  margin: 14px auto 0;
  max-width: 620px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-charcoal);
}

/* 「部門 › サービス」の階層パス表示 */
.section__path {
  margin: 0 0 10px;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

/* ============ 3. ボタン ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  padding: 0 30px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition),
    border-color var(--transition), transform var(--transition);
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.btn--primary:hover {
  background-color: var(--color-accent-dark);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn--ghost {
  background-color: transparent;
  border-color: rgba(255, 255, 255, 0.7);
  color: var(--color-white);
}

.btn--ghost:hover {
  background-color: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
}

.btn--small {
  min-height: 44px;
  padding: 0 22px;
  font-size: 0.9rem;
  background-color: var(--color-white);
  border-color: var(--color-border);
  color: var(--color-charcoal);
}

.btn--small:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn--block {
  width: 100%;
}

/* ============ 4. ヘッダー / ナビゲーション ============ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(6px);
  z-index: 1000;
  transition: box-shadow var(--transition), background-color var(--transition);
}

.header.is-scrolled {
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.header__brand {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: 0.02em;
}

.header__brand:hover {
  color: var(--color-navy);
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-charcoal);
}

.nav__link:hover {
  color: var(--color-accent);
}

.nav__link--cta {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: var(--radius);
  background-color: var(--color-accent);
  color: var(--color-white);
  font-weight: 700;
}

.nav__link--cta:hover {
  background-color: var(--color-accent-dark);
  color: var(--color-white);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 10px;
}

.nav-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  background-color: var(--color-charcoal);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.is-active .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.is-active .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle.is-active .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============ 5. ファーストビュー ============ */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 88vh;
  padding: 120px 0 90px;
  overflow: hidden;
  background-color: var(--color-navy);
}

.hero__media {
  position: absolute;
  inset: 0;
  /* images/hero.jpg が無い場合はグレーの背景色が表示されます */
  background-color: #c9ced7;
  background-image: url("images/hero.jpg");
  background-size: cover;
  background-position: center;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    rgba(16, 26, 48, 0.82) 0%,
    rgba(16, 26, 48, 0.62) 55%,
    rgba(16, 26, 48, 0.42) 100%
  );
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__content {
  max-width: 640px;
  color: var(--color-white);
}

.hero__eyebrow {
  margin: 0 0 20px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: #a9c2ea;
}

.hero__title {
  margin: 0 0 26px;
  font-size: 2.6rem;
  line-height: 1.45;
  color: var(--color-white);
}

.hero__lead {
  margin: 0 0 36px;
  font-size: 1.05rem;
  line-height: 2;
  color: rgba(255, 255, 255, 0.92);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* ============ 6. INTRO ============ */
.intro__body p {
  margin: 0 0 20px;
  font-size: 1.05rem;
}

.intro__body p:last-child {
  margin-bottom: 0;
}

/* ============ 6-2. 3つの専門部門（OUR DIVISIONS） ============ */
.divisions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.division {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 34px 30px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
}

.division:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: #cfd8e6;
}

.division__head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}

.division__icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background-color: #eef3fb;
  color: var(--color-accent);
}

.division__icon svg {
  width: 26px;
  height: 26px;
}

.division__label {
  margin: 0 0 4px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-accent);
}

.division__name {
  margin: 0;
  font-size: 1.12rem;
}

.division__catch {
  margin: 0 0 12px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-charcoal);
}

.division__desc {
  margin: 0 0 18px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  flex-grow: 1;
}

.division__services {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.division__services li {
  font-size: 0.8rem;
  padding: 5px 12px;
  border-radius: 999px;
  background-color: var(--color-bg-muted);
  color: var(--color-text-muted);
}

.division__link {
  font-size: 0.9rem;
  font-weight: 700;
}

.division__link::after {
  content: " →";
}

/* --- 主力部門（MAIN DIVISION）：横幅いっぱい・ネイビー背景で上品に強調 --- */
.division--main {
  grid-column: 1 / -1;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 32px;
  padding: 40px;
  background-color: var(--color-navy);
  border-color: var(--color-navy);
  color: var(--color-white);
}

.division--main .division__badge {
  position: absolute;
  top: -12px;
  left: 40px;
  padding: 5px 14px;
  border-radius: 999px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  box-shadow: 0 4px 10px rgba(16, 26, 48, 0.15);
}

.division--main .division__main-left {
  flex: 1 1 280px;
}

.division--main .division__main-right {
  flex: 1 1 320px;
  display: flex;
  flex-direction: column;
}

.division--main .division__icon {
  width: 56px;
  height: 56px;
  background-color: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
}

.division--main .division__label {
  color: #a9c2ea;
}

.division--main .division__name {
  color: var(--color-white);
  font-size: 1.3rem;
}

.division--main .division__catch {
  margin: 0;
  color: var(--color-white);
  font-size: 1.15rem;
}

.division--main .division__desc {
  color: rgba(255, 255, 255, 0.85);
}

.division--main .division__services li {
  background-color: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.9);
}

.division--main .division__link {
  color: var(--color-white);
}

.division--main .division__link:hover {
  color: #a9c2ea;
}

/* ============ 7. サービスカード ============ */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* 2サービスの部門（キャリア・ビジネス／ウェルネス）は2カラム中央寄せ */
.cards--two {
  grid-template-columns: repeat(2, 1fr);
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.card {
  display: flex;
  flex-direction: column;
  padding: 34px 30px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: #cfd8e6;
}

.card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background-color: #eef3fb;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.card__icon svg {
  width: 26px;
  height: 26px;
}

.card__title {
  margin: 0 0 12px;
  font-size: 1.15rem;
}

.card__text {
  margin: 0 0 18px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  flex-grow: 1;
}

.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.card__tags li {
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: 999px;
  background-color: var(--color-bg-muted);
  color: var(--color-text-muted);
}

.card__link {
  font-size: 0.9rem;
  font-weight: 700;
}

.card__link::after {
  content: " →";
}

/* ============ 8. 強み ============ */
.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature {
  text-align: center;
  padding: 12px;
}

.feature__icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  color: var(--color-accent);
}

.feature__icon svg {
  width: 28px;
  height: 28px;
}

.feature__title {
  margin: 0 0 10px;
  font-size: 1.02rem;
}

.feature__text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ============ 9. 制作実績（WORKS） ============ */
.works {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.work {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.work:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.work__thumb {
  aspect-ratio: 16 / 9;
  /* 画像（子の <img>）が無い・読み込み失敗時はグレーのプレースホルダーが表示されます */
  background-color: var(--color-placeholder);
  position: relative;
  overflow: hidden;
}

.work__thumb::after {
  content: "NO IMAGE";
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: #9aa3b0;
}

.work__thumb img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.work__body {
  padding: 26px 26px 28px;
}

.work__type {
  display: inline-block;
  margin-bottom: 12px;
  padding: 3px 12px;
  border-radius: 999px;
  background-color: #eef3fb;
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 700;
}

.work__title {
  margin: 0 0 10px;
  font-size: 1.15rem;
}

.work__text {
  margin: 0 0 20px;
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

.works__note {
  margin: 28px 0 0;
  text-align: center;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ============ 10. 料金 ============ */
.plans {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.plan {
  padding: 38px 30px;
  text-align: center;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: transform var(--transition), box-shadow var(--transition);
}

.plan:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.plan--featured {
  border-color: var(--color-accent);
  box-shadow: 0 8px 24px rgba(37, 99, 201, 0.12);
}

.plan__name {
  margin: 0 0 16px;
  font-size: 1.05rem;
}

.plan__price {
  margin: 0 0 16px;
  font-size: 1.05rem;
  color: var(--color-text-muted);
}

.plan__num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-charcoal);
}

.plan__text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.pricing__notes {
  margin: 28px 0 0;
  text-align: center;
}

.pricing__notes li {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ============ 11. 制作の流れ ============ */
.steps {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  counter-reset: step;
}

.step {
  position: relative;
  padding: 26px 16px;
  text-align: center;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.step__num {
  display: block;
  margin-bottom: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

.step__label {
  display: block;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-charcoal);
}

.step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -10px;
  width: 12px;
  height: 12px;
  border-top: 2px solid var(--color-border);
  border-right: 2px solid var(--color-border);
  transform: translateY(-50%) rotate(45deg);
}

/* ============ 12. プロフィール ============ */
.profile {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 48px;
  align-items: start;
}

.profile__photo {
  aspect-ratio: 3 / 4;
  border-radius: var(--radius);
  overflow: hidden;
  /* images/profile.jpg が無い・読み込み失敗時はグレーのプレースホルダーが表示されます */
  background-color: var(--color-placeholder);
  position: relative;
}

.profile__photo::after {
  content: "NO IMAGE";
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: #9aa3b0;
}

.profile__photo img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile__body p {
  margin: 0 0 18px;
  font-size: 1rem;
}

.profile__history {
  margin: 28px 0 0;
  border-top: 1px solid var(--color-border);
}

.profile__history-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.profile__history-row dt {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-charcoal);
}

.profile__history-row dd {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ============ 13. FAQ ============ */
.faq__item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
}

.faq__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 24px;
  border: 0;
  background: transparent;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.7;
  text-align: left;
  color: var(--color-charcoal);
  cursor: pointer;
  transition: background-color var(--transition);
}

.faq__q:hover {
  background-color: var(--color-bg-muted);
}

.faq__mark {
  position: relative;
  flex-shrink: 0;
  width: 18px;
  height: 18px;
}

.faq__mark::before,
.faq__mark::after {
  content: "";
  position: absolute;
  background-color: var(--color-accent);
  transition: transform var(--transition);
}

.faq__mark::before {
  top: 8px;
  left: 0;
  width: 18px;
  height: 2px;
}

.faq__mark::after {
  top: 0;
  left: 8px;
  width: 2px;
  height: 18px;
}

.faq__q[aria-expanded="true"] .faq__mark::after {
  transform: rotate(90deg);
  opacity: 0;
}

.faq__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition);
}

.faq__a p {
  margin: 0;
  padding: 0 24px 24px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* ============ 14. お問い合わせフォーム ============ */
.form__row {
  margin-bottom: 24px;
}

.form__label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-charcoal);
}

.form__req {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  background-color: #fdecec;
  color: #c0392b;
}

.form__input {
  width: 100%;
  padding: 14px 16px;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form__input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 201, 0.14);
}

.form__input.is-invalid {
  border-color: #c0392b;
  box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.12);
}

textarea.form__input {
  resize: vertical;
  min-height: 140px;
}

.form__error {
  margin: 8px 0 0;
  min-height: 1.2em;
  font-size: 0.82rem;
  color: #c0392b;
}

.form__note {
  margin: 16px 0 0;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 700;
}

.form__note.is-error {
  color: #c0392b;
}

.form__note.is-success {
  color: #1e7e34;
}

/* ============ 15. 最終CTA ============ */
.final-cta {
  padding: 88px 0;
  background-color: var(--color-navy);
  color: var(--color-white);
  text-align: center;
}

.final-cta__title {
  margin: 0 0 14px;
  font-size: 1.7rem;
  color: var(--color-white);
}

.final-cta__text {
  margin: 0 0 32px;
  color: rgba(255, 255, 255, 0.85);
}

/* ============ 16. フッター ============ */
.footer {
  background-color: var(--color-navy-deep);
  color: rgba(255, 255, 255, 0.8);
  padding: 56px 0 32px;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer__brand {
  font-size: 1.05rem;
  font-weight: 700;
  font-style: normal;
  color: var(--color-white);
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.footer__nav a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
}

.footer__nav a:hover {
  color: var(--color-white);
}

.footer__copy {
  margin: 24px 0 0;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.55);
}

/* ============ 17. スクロールアニメーション ============ */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ============ 18. レスポンシブ ============ */
@media (max-width: 960px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
  .features {
    grid-template-columns: repeat(2, 1fr);
  }
  .divisions {
    grid-template-columns: 1fr;
  }
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
  .step:nth-child(3)::after {
    display: none;
  }
  .hero__title {
    font-size: 2.2rem;
  }
}

@media (max-width: 768px) {
  body {
    font-size: 16px;
  }

  .section {
    padding: 72px 0;
  }

  .section__head {
    margin-bottom: 40px;
  }

  .section__title {
    font-size: 1.55rem;
  }

  /* ---- モバイルナビ ---- */
  .nav-toggle {
    display: block;
  }

  .nav {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    max-height: 0;
    overflow: hidden;
    background-color: var(--color-white);
    box-shadow: var(--shadow-md);
    transition: max-height var(--transition);
  }

  .nav.is-open {
    max-height: calc(100vh - 72px);
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 24px 28px;
  }

  .nav__list li {
    border-bottom: 1px solid var(--color-border);
  }

  .nav__link {
    display: block;
    padding: 16px 4px;
  }

  .nav__link--cta {
    justify-content: center;
    margin-top: 16px;
    min-height: 52px;
  }

  .nav__list li:last-child {
    border-bottom: 0;
  }

  /* ---- ヒーロー ---- */
  .hero {
    min-height: 0;
    padding: 130px 0 80px;
  }

  .hero__title {
    font-size: 1.9rem;
  }

  .hero__lead {
    font-size: 1rem;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  /* ---- グリッドを1カラムに ---- */
  .cards,
  .cards--two,
  .features,
  .works,
  .plans,
  .divisions {
    grid-template-columns: 1fr;
  }

  /* ---- 主力部門カードを縦積みに ---- */
  .division--main {
    flex-direction: column;
    gap: 20px;
    padding: 32px 24px;
  }

  .division--main .division__badge {
    position: static;
    align-self: flex-start;
    margin-bottom: 4px;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .step::after {
    display: none !important;
  }

  /* ---- プロフィール ---- */
  .profile {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .profile__photo {
    max-width: 280px;
    margin: 0 auto;
  }

  .profile__history-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  /* ---- フッター ---- */
  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 420px) {
  .container {
    padding: 0 18px;
  }

  .hero__title {
    font-size: 1.7rem;
  }

  .card,
  .plan {
    padding: 28px 22px;
  }
}