/* ============================================================
   Corp Header — Figma
   TOP PC: 161:1839  TOP SP: 161:2010  下層 PC: 161:1668
   ※ .header は親テーマと競合するため .corp-header を使用
   ※ 下層は色・ロゴのみ差分。文字・ボタン・レスポンシブは TOP と同一
   ============================================================ */

:root {
  --corp-header-height: 112px;
}

.corp-header {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: var(--corp-header-height);
  padding: 32px 40px;
  margin: 0;
  border: none;
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background-color 0.25s ease;
  letter-spacing: normal;
  font-feature-settings: normal;
}

/* ---- TOP（緑ヒーロー上・透明 → スクロールで白）---- */
.corp-header--hero {
  background: transparent;
  background-color: transparent;
}

.corp-header--hero.is-scrolled {
  background: #fff;
  background-color: #fff;
}

.corp-header--hero .corp-header__nav a {
  color: #fff;
}

.corp-header--hero.is-scrolled .corp-header__nav a {
  color: #00744b;
}

.corp-header--hero .corp-header__login-btn {
  background: #fff;
  border: none;
  color: #00744b;
}

.corp-header--hero.is-scrolled .corp-header__login-btn {
  background: #fff;
  border: 1px solid #00744b;
  color: #00744b;
}

.corp-header--hero .corp-header__logo-dark,
.corp-header--hero .corp-header__hamburger-dark {
  display: none;
}

.corp-header--hero.is-scrolled .corp-header__logo-light,
.corp-header--hero.is-scrolled .corp-header__hamburger-light {
  display: none;
}

.corp-header--hero.is-scrolled .corp-header__logo-dark,
.corp-header--hero.is-scrolled .corp-header__hamburger-dark {
  display: block;
}

/* ---- 下層（白背景・色とロゴのみ差分）---- */
.corp-header--subpage {
  flex-shrink: 0;
  background: #fff;
  background-color: #fff;
}

.corp-header--subpage .corp-header__nav a {
  color: #00744b;
}

.corp-header--subpage .corp-header__login-btn {
  background: #fff;
  border: 1px solid #00744b;
  color: #00744b;
}

.corp-header__left {
  display: flex;
  align-items: center;
  gap: 40px;
  min-width: 0;
}

.corp-header__logo-link {
  display: block;
  flex-shrink: 0;
  line-height: 0;
}

.corp-header__logo {
  width: 197px;
  height: 48px;
  overflow: hidden;
  flex-shrink: 0;
}

.corp-header__logo img,
.corp-header__hamburger img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.corp-header__logo img {
  object-position: left center;
}

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

.corp-header__nav a {
  font-family: 'DM Sans', sans-serif;
  font-size: 18px;
  font-weight: 500;
  line-height: normal;
  color: inherit;
  white-space: nowrap;
  text-decoration: none;
  letter-spacing: normal;
  font-feature-settings: normal;
  transition: opacity 0.2s;
}

.corp-header__nav a:hover {
  opacity: 0.75;
}

.corp-header__right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.corp-header__login {
  display: flex;
  align-items: center;
  gap: 12px;
}

.corp-header__login-btn {
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 16px 24px;
  border-radius: 999px;
  font-family: 'M PLUS 1p', 'Noto Sans JP', sans-serif;
  font-size: 14px;
  font-weight: 400;
  line-height: 100%;
  white-space: nowrap;
  text-decoration: none;
  letter-spacing: normal;
  font-feature-settings: 'palt' 1;
  transition: opacity 0.2s;
}

.corp-header__login-btn:hover {
  opacity: 0.85;
}

.corp-header__hamburger {
  display: none;
  width: 32px;
  height: 32px;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
}

/* 1340px 以下でナビ・CTAを隠しハンバーガー表示 */
@media (max-width: 1340px) {
  .corp-header__nav,
  .corp-header__login {
    display: none;
  }

  .corp-header__hamburger {
    display: flex;
  }
}

/* SP（Figma 161:2010） */
@media (max-width: 767px) {
  :root {
    --corp-header-height: 88px;
  }

  .corp-header {
    min-height: var(--corp-header-height);
    padding: 24px;
  }

  .corp-header__login-btn {
    min-height: 38px;
    padding: 12px 24px;
  }

  .corp-header__logo {
    width: 164px;
    height: 40px;
  }
}