/* ==========================================================================
   Layout — ヘッダー・フッター・セクション共通レイアウト
   ========================================================================== */

/* --------------------------------------------------------------------------
   ヘッダー — 要件定義書「5-1」
   -------------------------------------------------------------------------- */
.l-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 110;
  height: 8rem;
  display: flex;
  align-items: center;
  padding: 0 4rem;
  background: var(--color-white);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.l-header.is-scrolled {
  background: var(--color-white);
  box-shadow: 0 0.2rem 1rem rgba(0, 0, 0, 0.06);
}

.l-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 120rem;
  margin: 0 auto;
}

.l-header__logo {
  flex-shrink: 0;
}

.l-header__logo img {
  height: 5.6rem;
  width: auto;
}

/* PCナビ — ピル型 */
.l-nav {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.l-nav-item-link {
  display: inline-flex;
  align-items: center;
  border-radius: var(--border-radius-full);
  border: var(--border-width) solid var(--color-border);
  padding: 0.8rem 1.6rem;
  font-size: 1.3rem;
  font-weight: var(--font-weight-bold);
  line-height: var(--leading-none);
  letter-spacing: var(--tracking-base);
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.l-nav-item-link:hover {
  background-color: var(--rotation-color);
  color: var(--color-white);
  border-color: var(--rotation-color);
}

.l-header__actions {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}

/* ハンバーガーボタン（SP用 — PCでは非表示） */
.l-header-burger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 4.8rem;
  height: 4.8rem;
  border-radius: var(--border-radius-full);
  border: var(--border-width) solid var(--color-border);
  background: var(--color-white);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  z-index: 110;
}

.l-header-burger__icon {
  width: 2rem;
  height: 2rem;
  transition: transform 0.3s ease;
}

.l-header-burger__text {
  display: none;
}

/* SPナビ（フルスクリーンメニュー） */
.l-sp-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-white);
  z-index: 105;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 8rem 4rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.l-sp-nav.is-open {
  opacity: 1;
  visibility: visible;
}

.l-sp-nav__list {
  display: flex;
  flex-direction: column;
  gap: 2.4rem;
  text-align: center;
}

.l-sp-nav__link {
  font-size: 1.8rem;
  font-weight: var(--font-weight-extra-bold);
  letter-spacing: var(--tracking-negative);
  line-height: var(--leading-half);
}

/* --------------------------------------------------------------------------
   フッター — 要件定義書「5-8」
   -------------------------------------------------------------------------- */
.l-footer {
  background: var(--color-dark);
  padding: 8rem 0;
  color: var(--color-smoke);
  position: relative;
  overflow: hidden;
}

.l-footer__inner {
  max-width: 120rem;
  margin: 0 auto;
  padding: 0 4rem;
}

.l-footer__logo {
  margin-bottom: 3.2rem;
}

.l-footer__logo img {
  height: 5.6rem;
  width: auto;
}

.l-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.6rem;
  margin-bottom: 3.2rem;
}

.l-footer-nav-item-link {
  font-size: 1.3rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--tracking-base);
  padding: 0.4rem 0.8rem;
  border-radius: var(--border-radius-full);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.l-footer-nav-item-link:hover {
  background-color: var(--rotation-color);
  color: var(--color-white);
}

.l-footer__info {
  margin-bottom: 2.4rem;
  font-size: 1.3rem;
  line-height: var(--leading-base);
}

.l-footer__info p {
  margin-bottom: 0.4rem;
}

.l-footer__copyright {
  font-size: 1.2rem;
  font-weight: var(--font-weight-semi-bold);
  color: var(--color-smoke);
}

/* WOWループ */
.l-footer__wow-loop {
  overflow: hidden;
  margin-bottom: 4.8rem;
  white-space: nowrap;
}

.l-footer__wow-track {
  display: inline-flex;
  will-change: transform;
}

.l-footer__wow-text {
  font-family: var(--font-family-red-hat);
  font-weight: var(--font-weight-extra-bold);
  font-size: 8rem;
  color: var(--color-charcoal);
  padding: 0 2rem;
  white-space: nowrap;
  user-select: none;
}

/* --------------------------------------------------------------------------
   セクション共通レイアウト
   -------------------------------------------------------------------------- */
.l-section {
  position: relative;
  padding: 10rem 0;
}