/* ==========================================================================
   layout.css — ヘッダー、フッター
   ========================================================================== */

/* ----- Page Loader（初回ロード時のスプラッシュ画面） ----- */
.page-loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: auto;
  /* 表示中の状態 */
  opacity: 1;
  visibility: visible;
  transition:
    opacity 0.7s cubic-bezier(0.65, 0, 0.35, 1),
    visibility 0s linear 0.7s;
}
/* スクロールを止める（ロード中は背面の操作不要） */
body.bp-loading {
  overflow: hidden;
}
/* ロード完了後 */
.page-loader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.page-loader__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  padding: 0 32px;
}
.page-loader__logo {
  display: block;
  height: 80px;
  width: auto;
  max-width: 80vw;
  flex-shrink: 0;
  /* HTML width/height 属性で画像の縦横比を事前確定し、読み込み時のシフトを防ぐ */
  object-fit: contain;
  /* GPUレイヤー化でちらつき抑制 */
  will-change: opacity, transform;
  backface-visibility: hidden;
  transform-origin: 50% 50%;
  opacity: 0;
  transform: scale(0.92);
  animation: bp-loader-logo-in 0.7s cubic-bezier(0.16, 1, 0.3, 1) 0.1s forwards;
}
@keyframes bp-loader-logo-in {
  to { opacity: 1; transform: scale(1); }
}
/* ロゴの下のプログレスバー（黄色→ピンクのグラデーション） */
.page-loader__bar {
  width: 220px;
  max-width: 70vw;
  height: 2px;
  background: rgba(26, 26, 26, 0.08);
  overflow: hidden;
  border-radius: 2px;
  opacity: 0;
  animation: bp-loader-bar-in 0.4s ease 0.5s forwards;
}
@keyframes bp-loader-bar-in {
  to { opacity: 1; }
}
.page-loader__bar span {
  display: block;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--yellow) 0%, var(--pink) 100%);
  transform: translateX(-100%);
  animation: bp-loader-bar-fill 1.1s cubic-bezier(0.65, 0, 0.35, 1) 0.5s forwards;
}
@keyframes bp-loader-bar-fill {
  to { transform: translateX(0); }
}
/* 他ページ用：短時間表示（約400ms）に収まるよう、アニメを大幅短縮 */
body:not(.home) .page-loader__logo {
  animation-duration: 0.25s;
  animation-delay: 0s;
}
body:not(.home) .page-loader__bar {
  animation-delay: 0.05s;
  animation-duration: 0.15s;
}
body:not(.home) .page-loader__bar span {
  animation-duration: 0.3s;
  animation-delay: 0.05s;
}
@media (max-width: 640px) {
  .page-loader__logo {
    height: 56px;
  }
  .page-loader__bar {
    width: 180px;
  }
}

/* ----- Header ----- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--yellow);
  z-index: 100;
  box-shadow: 0 1px 0 rgba(26, 26, 26, 0.06);
  transform: translateY(0);
  /* 復元時: フローティングが先に消えてからヘッダーが降りるよう少し遅延 */
  transition:
    transform 0.5s cubic-bezier(0.65, 0, 0.35, 1) 0.12s,
    box-shadow 0.3s ease;
}
.site-header.is-collapsed {
  transform: translateY(-105%);
  pointer-events: none;
  /* 縮小時: ヘッダーが先にスッと上昇（遅延なし） */
  transition: transform 0.4s cubic-bezier(0.55, 0, 0.45, 1);
}

/* ----- Floating logo (collapsed state) ----- */
.floating-logo {
  position: fixed;
  top: 24px;
  left: 24px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--yellow);
  border: 0;
  cursor: pointer;
  padding: 0;
  z-index: 99;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.35) translateY(-12px) rotate(-90deg);
  box-shadow:
    0 14px 32px -10px rgba(26, 26, 26, 0.3),
    0 0 0 1px rgba(26, 26, 26, 0.04);
  /* 非表示化: ヘッダーが降りる前にスッと小さくなって消える */
  transition:
    opacity 0.22s ease,
    visibility 0s linear 0.28s,
    transform 0.3s cubic-bezier(0.55, 0, 0.45, 1),
    box-shadow 0.25s ease;
}
.floating-logo.is-visible {
  opacity: 1;
  visibility: visible;
  transform: scale(1) translateY(0) rotate(0deg);
  /* 表示化: ヘッダーが上昇しきった後にバウンス気味で出現 */
  transition:
    opacity 0.32s ease 0.22s,
    visibility 0s linear 0.22s,
    transform 0.55s cubic-bezier(0.34, 1.56, 0.64, 1) 0.22s,
    box-shadow 0.25s ease;
}
.floating-logo:hover {
  transform: scale(1.08) translateY(0) rotate(0deg);
  box-shadow:
    0 18px 40px -10px rgba(26, 26, 26, 0.38),
    0 0 0 1px rgba(26, 26, 26, 0.08);
}
.floating-logo:active {
  transform: scale(0.96) translateY(0) rotate(0deg);
}
.floating-logo__img {
  width: 32px;
  height: auto;
  display: block;
  pointer-events: none;
}

/* 出現時に外側へ広がる残光リング（ピンク） */
.floating-logo::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 4px solid var(--pink);
  opacity: 0;
  pointer-events: none;
}
.floating-logo.is-visible::after {
  animation: bp-fab-ring 1.9s cubic-bezier(0.16, 1, 0.3, 1) 0.32s 1;
}
@keyframes bp-fab-ring {
  0%   { transform: scale(1);    opacity: 0.95; }
  70%  { transform: scale(1.65); opacity: 0;    }
  100% { transform: scale(1.65); opacity: 0;    }
}

/* ホバー時に発生するピンクの波動エフェクト（揺れた瞬間に脈打つ） */
.floating-logo::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 4px solid var(--pink);
  opacity: 0;
  pointer-events: none;
  z-index: -1;
}
.floating-logo.is-visible:hover::before {
  animation: bp-fab-pink-wave 1.6s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}
@keyframes bp-fab-pink-wave {
  0%   { transform: scale(1);   opacity: 0.95; }
  70%  { transform: scale(1.7); opacity: 0;    }
  100% { transform: scale(1.7); opacity: 0;    }
}
.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 16px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  position: relative;
  z-index: 100;
}
.logo,
.site-header .custom-logo-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  line-height: 0;
  margin: 0;
}
.logo__img,
.site-header .custom-logo {
  display: block;
  height: 56px;
  width: auto;
  max-width: 300px;
}

.global-nav {
  display: flex;
  align-items: center;
}
.global-nav .primary-menu,
.global-nav ul {
  display: flex;
  gap: 8px;
  list-style: none;
  align-items: stretch;
  margin: 0;
  padding: 0;
}
.global-nav .primary-menu__item {
  display: flex;
  align-items: stretch;
}
.global-nav a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: var(--black);
  text-decoration: none;
  padding: 6px 16px;
  position: relative;
  transition: color 0.2s;
}
.primary-menu__label {
  font-family: 'Roboto', sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1;
}
.primary-menu__sub {
  font-size: 10px;
  letter-spacing: 0.05em;
  color: var(--gray-700);
  font-weight: 500;
  line-height: 1;
}
.primary-menu__item.has-mega > a .primary-menu__label::after {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-left: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform 0.25s ease;
  vertical-align: middle;
  opacity: 0.7;
}
.primary-menu__item.has-mega.is-active > a .primary-menu__label::after,
.primary-menu__item.has-mega:hover > a .primary-menu__label::after {
  transform: translateY(0) rotate(225deg);
  opacity: 1;
}
.global-nav .primary-menu__item.is-active > a,
.global-nav a:not(.nav-cta):hover {
  color: var(--black);
}
.global-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 0;
  height: 2px;
  background: var(--black);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.25s ease;
}
.global-nav .primary-menu__item.is-active > a::after,
.global-nav a:not(.nav-cta):hover::after {
  transform: scaleX(1);
}
.global-nav .nav-cta {
  background: var(--black);
  color: var(--white) !important;
  padding: 10px 22px;
  border-radius: 2px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  transition: all 0.2s;
  flex-direction: column;
  gap: 3px;
  align-self: center;
}
.global-nav .nav-cta .primary-menu__label {
  color: var(--white);
}
.global-nav .nav-cta .primary-menu__sub {
  color: rgba(255, 255, 255, 0.7);
}
.global-nav .nav-cta::after {
  display: none;
}
.global-nav .nav-cta:hover {
  background: var(--white);
  color: var(--black) !important;
}
.global-nav .nav-cta:hover .primary-menu__label {
  color: var(--black);
}
.global-nav .nav-cta:hover .primary-menu__sub {
  color: var(--gray-700);
}

/* ----- Mega Menu ----- */
.megamenu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(26, 26, 26, 0.32);
  opacity: 0;
  transition: opacity 0.28s ease;
  z-index: 90;
  pointer-events: none;
}
.site-header.is-mega-open ~ .megamenu-overlay {
  opacity: 1 !important;
  pointer-events: auto;
}
.megamenu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--white);
  border-top: 1px solid var(--gray-100);
  box-shadow: 0 24px 48px -24px rgba(26, 26, 26, 0.16);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity 0.28s ease, visibility 0.28s ease, transform 0.28s ease;
  z-index: 99;
  pointer-events: none;
}
.megamenu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}
.megamenu-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 56px 40px 64px;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 64px;
  align-items: start;
}
.megamenu-head {
  position: relative;
  padding-right: 32px;
  border-right: 1px solid var(--gray-100);
}
.megamenu-head__tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.32em;
  color: var(--gray-500);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.megamenu-head__tag::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--black);
}
.megamenu-head__title {
  font-family: 'Roboto', sans-serif;
  font-size: 32px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--black);
  line-height: 1.1;
  margin: 0 0 6px;
}
.megamenu-head__subtitle {
  font-size: 14px;
  color: var(--gray-700);
  margin: 0 0 20px;
  font-weight: 500;
}
.megamenu-head__lead {
  font-size: 13px;
  color: var(--gray-700);
  line-height: 1.85;
  margin: 0 0 24px;
}
.megamenu-head__more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--black);
  text-decoration: none;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--black);
  transition: gap 0.2s ease;
}
.megamenu-head__more:hover {
  gap: 14px;
}
.megamenu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.megamenu-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px 24px;
  background: var(--gray-50);
  border: 1px solid transparent;
  text-decoration: none;
  color: var(--black);
  transition: all 0.22s ease;
  position: relative;
  overflow: hidden;
}
.megamenu-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--yellow);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.25s ease;
}
.megamenu-card:hover {
  background: var(--white);
  border-color: var(--gray-100);
  box-shadow: 0 8px 20px -10px rgba(26, 26, 26, 0.18);
  transform: translateY(-2px);
}
.megamenu-card:hover::before {
  transform: scaleY(1);
  transform-origin: top;
}
.megamenu-card__icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  background: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--black);
  border: 1px solid var(--gray-100);
  transition: all 0.22s ease;
}
.megamenu-card:hover .megamenu-card__icon {
  background: var(--yellow-soft);
  border-color: var(--yellow);
}
.megamenu-card__icon svg {
  width: 22px;
  height: 22px;
}
.megamenu-card__text {
  flex: 1;
  min-width: 0;
}
.megamenu-card__text h3 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1;
  margin: 0 0 6px;
  color: var(--black);
}
.megamenu-card__text p {
  font-size: 12px;
  color: var(--gray-700);
  margin: 0;
  line-height: 1.4;
}
.megamenu-card__arrow {
  font-size: 14px;
  color: var(--gray-300);
  transition: all 0.22s ease;
  flex-shrink: 0;
}
.megamenu-card:hover .megamenu-card__arrow {
  color: var(--black);
  transform: translateX(3px);
}

/* モバイル用ハンバーガー */
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  position: relative;
  z-index: 101;
}
.nav-toggle span {
  position: absolute;
  left: 8px;
  right: 8px;
  height: 2px;
  background: var(--black);
  transition: all 0.3s;
}
.nav-toggle span:nth-child(1) { top: 13px; }
.nav-toggle span:nth-child(2) { top: 19px; }
.nav-toggle span:nth-child(3) { top: 25px; }
.nav-toggle.is-open span:nth-child(1) { top: 19px; transform: rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { top: 19px; transform: rotate(-45deg); }


/* ----- Footer ----- */
.site-footer {
  background: var(--black);
  color: var(--gray-300);
  padding: 100px 40px 40px;
}
.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 80px;
}
.footer-logo {
  display: block;
  margin: 0;
  line-height: 0;
  overflow: hidden;
  width: fit-content;
}
.footer-logo__img {
  display: block;
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
  margin: 0;
}
/* カスタムフッターロゴ（別画像アップロード時）
   親 .footer-logo を overflow:hidden + 高さ指定にして、
   画像の透明領域を「物理的に切り抜く」方式 */
.footer-logo--has-upload {
  height: 100px;
  margin-bottom: 8px;
}
.footer-logo__img--upload {
  display: block;
  width: 200px;
  height: auto;
  filter: none;
  margin: -50px 0 0 -28px;
}
/* フッター事務所名（正式名称） */
.footer-firm-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.04em;
  margin: 6px 0 14px;
}
.footer-desc {
  font-size: 13px;
  line-height: 1.9;
  color: var(--gray-300);
}
.site-footer h4 {
  color: var(--white);
  font-family: 'Roboto', sans-serif;
  font-size: 11px;
  letter-spacing: 0.25em;
  margin-bottom: 24px;
  font-weight: 700;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--gray-700);
}
.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-footer ul li {
  margin-bottom: 14px;
}
.site-footer ul a {
  color: var(--gray-300);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s;
}
.site-footer ul a:hover {
  color: var(--yellow);
}
.copyright {
  border-top: 1px solid var(--gray-700);
  padding-top: 32px;
  text-align: center;
  font-family: 'Roboto', sans-serif;
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--gray-500);
  max-width: var(--container-max);
  margin: 0 auto;
}