/* ============================================================
   layout.css
   ヘッダー・フッター・グリッドなどの骨格スタイル
   ============================================================ */


/* ── Header ──────────────────── */

.td-header,
body.home .td-header:has(.td-header__nav-item.is-active)  {
  position: relative;
  background: var(--color-bg-white);
  border-bottom: solid 1px var(--color-border);
  z-index: 300;
}

.td-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  /* width: min(var(--container-max), 100% - var(--container-pad) * 2); */
  padding: 0 3.8vw;
  margin-inline: auto;
  height: 100px;
}

@media (max-width: 767px) {
  .td-header__inner {
    max-height: 64px;
    width: min(var(--container-max), 100% - var(--container-pad) * 2);
    padding: 0;
  }
}

/* ロゴ */
.td-header__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  width: 30%;
  max-width: 206px;
}

.td-header__logo img {
  height: 38px;
  width: auto;
}

/* グローバルナビ */
.td-header__nav {
  margin-left: auto;
}

.td-header__nav-list {
  display: flex;
  align-items: center;
  gap: 0;
}

.td-header__nav-item {
  /* position: relative を外してヘッダー基準でメニューを開く */
}

.td-header__nav-item > a,
.td-header__nav-item > button {
  display: flex;
  align-items: center;
  gap: 0.3em;
  font-size: var(--text-md);
  font-weight: var(--font-regular);
  color: var(--color-text-dark);
  text-decoration: none;
  padding: var(--space-xs) var(--space-sm);
  white-space: nowrap;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-base);
  position: relative;
  transition: color var(--transition-fast), font-weight var(--transition-fast);
}

.td-header__nav-item > a::after,
.td-header__nav-item > button::after {
  content: '';
  display: block;
  width: 0;
  height: 1px;
  background-color: var(--color-primary);
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  opacity: 0;
  transition: width var(--transition-fast);
}

.td-header__nav-item > a:hover,
.td-header__nav-item > button:hover,
.td-header__nav-item.is-active > a,
.td-header__nav-item.is-active > button {
  color: var(--color-primary);
}

.td-header__nav-item > a:hover:after,
.td-header__nav-item > button:hover:after,
.td-header__nav-item.is-active > a:after,
.td-header__nav-item.is-active > button:after {
  opacity: 1;
  width: 100%;
}

/* ▼アイコン */
.td-header__nav-arrow {
  display: inline-block;
  width: 0;
  height: 0;
  margin-top: 0.1em;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  transition: transform var(--transition-fast);
  opacity: 0.6;
}

.td-header__nav-item.is-active .td-header__nav-arrow {
  transform: rotate(180deg);
}

/* 区切り線 */
.td-header__nav-sep {
  width: 1px;
  height: 16px;
  background: var(--color-border);
  margin-inline: var(--space-xs);
}

/* アクションボタン（Global・検索） */
.td-header__action-btn {
  display: block;
  color: var(--color-text);
  background: none;
  border: none;
  cursor: pointer;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.td-header__action-btn:hover {
  color: var(--color-primary);
}

.td-header__action-btn svg,
body.home .td-header:has(.td-header__nav-item.is-active) .td-header__action-btn svg {
  width: 20px;
  height: 20px;
  fill: var(--color-text);
  flex-shrink: 0;
}

.td-header__search-btn {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  padding: 0;
}

.td-header__search-btn svg,
body.home .td-header:has(.td-header__nav-item.is-active) .td-header__search-btn svg {
  width: 100%;
  height: 100%;
  fill: var(--color-text-dark);
}

.td-header__search-btn:hover svg,
.td-header__action-btn:hover svg {
  fill: var(--color-primary);
}

/* /home/ メガメニューが開いているときはデフォルトの文字色 */
body.home .td-header:has(.td-header__nav-item.is-active) .td-header__nav-item > a,
body.home .td-header:has(.td-header__nav-item.is-active) .td-header__nav-item > button {
  color: var(--color-text-dark);
}

/* /home/ メガメニューが閉じているときだけロゴを白に */
body.home:not(.root) .td-header:not(:has(.td-header__nav-item.is-active)) .td-header__logo svg path {
  fill: var(--color-bg-white);
}

/* /home/ メガメニューが閉じているときだけ下線を白に */
body.home:not(.root) .td-header:not(:has(.td-header__nav-item.is-active)) .td-header__nav-item > a::after,
body.home:not(.root) .td-header:not(:has(.td-header__nav-item.is-active)) .td-header__nav-item > button::after {
  background-color: var(--color-bg-white);
}


/* ── メガメニュー（ドロップダウン共通） ──────────────────── */

.td-mega-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  padding: var(--space-lg) var(--container-pad);
  display: flex;
  gap: var(--space-lg);
  border-top: 5px solid var(--color-primary);
  border-image: linear-gradient(90deg, #007AB7 0%, #1B8FCB 100%) 1;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.td-header__nav-item.is-active .td-mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.td-mega-menu, .td-search-overlay {
  background: linear-gradient(180deg, #FFFFFF 0%, #F9FAFB 100%);
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

/* Productsのみ4カラムグリッド（__inner で最大幅・レイアウトを管理） */
.td-mega-menu--grid {
  display: block;
  padding: 0;
}

.td-mega-menu__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding: var(--space-lg) var(--container-pad);
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
}

.td-mega-menu__top-link + .td-mega-menu__inner {
  padding-top: var(--space-md);
}

/* カテゴリ トップページへのリンク（各メガメニュー冒頭） */
.td-mega-menu__top-link {
  width: 100%;
  padding: var(--space-sm) var(--container-pad);
  background-color: var(--color-bg-light);
  border-bottom: solid 1px var(--color-border);
}

.td-mega-menu__top-link-inner {
  max-width: var(--container-max);
  margin-inline: auto;
}

#mega-about-us .td-mega-menu__col {
  flex: 1 1 auto;
}

.td-mega-menu__top-link a {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: var(--text-lx);
  font-weight: var(--font-light);
  color: var(--color-text-dark);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.td-mega-menu__top-link a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.td-mega-menu__top-arrow {
  display: block;
  width: 0.6em;
  height: 0.5em;
  flex-shrink: 0;
  background-color: var(--color-primary);
  mask: url('/assets/images/common/icon/icon_arrow.svg') center / contain no-repeat;
  -webkit-mask: url('/assets/images/common/icon/icon_arrow.svg') center / contain no-repeat;
}

@media (min-width: 1520px) {
  .td-mega-menu__inner {
    padding-inline: 0;
    justify-content: center;
  }
}

#mega-products .td-mega-menu__inner {
  display: flex;
  justify-content: space-between;
  column-gap: var(--space-lg);
}

#mega-products .td-mega-menu__inner .td-mega-menu__col {
  flex: 0 1 25%;
}

#mega-downloads .td-mega-menu__inner {
  gap: var(--space-2xl);
}

.td-mega-menu__col-title {
  font-size: var(--text-lg);
  font-weight: var(--font-light);
  margin-bottom: var(--space-xs);
  color: var(--color-primary);
}

.td-mega-menu__col-title.hide {
  opacity: 0;
}

/* 同一カラム内で複数カテゴリが続く場合、前のリストとの間に余白を作る */
.td-mega-menu__list + .td-mega-menu__col-title {
  margin-top: var(--space-md);
}

.td-mega-menu__col-subtitle {
  font-size: 18px;
  font-weight: var(--font-regular);
  margin: var(--space-xs) 0 0;
  color: var(--color-primary);
}

.td-mega-menu__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.td-mega-menu__list a,
.td-mega-menu__item a {
  font-size: var(--text-md);
  color: var(--color-text-dark);
  font-weight: var(--font-regular);
  text-decoration: none;
  padding: 4px 0 4px 1.3em;
  transition: color var(--transition-fast);
  position: relative;
}
.td-mega-menu__list a::before,
.td-mega-menu__item a::before {
  content: '';
  display: block;
  width: 0.75em;
  height: 0.75em;
  position: absolute;
  top: 0.5em;
  left: 0;
  background-color: var(--color-border-light);
  mask: url('/assets/images/common/icon/icon_arrow.svg') center / contain no-repeat;
  -webkit-mask: url('/assets/images/common/icon/icon_arrow.svg') center / contain no-repeat;
  transition: var(--transition-fast);
}

.td-mega-menu__list a:hover,
.td-mega-menu__item a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}
.td-mega-menu__list a:hover:before,
.td-mega-menu__item a:hover:before {
  background-color: var(--color-primary);
}


/* ── 検索オーバーレイ ──────────────────── */

.td-search-overlay {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  border-top: 5px solid var(--color-primary);
  border-image: linear-gradient(90deg, #007AB7 0%, #1B8FCB 100%) 1;
  padding: var(--space-md) 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.td-search-overlay.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.td-search-overlay__inner {
  width: min(800px, 100% - var(--container-pad) * 2);
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  border-bottom: 1px solid var(--color-text-muted);
  background: var(--color-bg-white);
}

.td-search-overlay__input {
  flex: 1;
  border: none;
  outline: none;
  font-size: var(--text-lg);
  font-family: var(--font-base);
  color: var(--color-text);
  background: none;
  padding: var(--space-xs) var(--space-sm);
}

.td-search-overlay__input::placeholder {
  color: var(--color-text-muted);
}

.td-search-overlay__btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-dark);
  display: flex;
  align-items: center;
  padding: var(--space-xs);
  transition: color var(--transition-fast);
}

.td-search-overlay__btn:hover {
  color: var(--color-primary);
}

.td-search-overlay__btn svg {
  width: 32px;
  height: 32px;
}

/* ── モバイルハンバーガー ──────────────────── */

.td-header__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  width: 24px;
  height: 18px;
}

.td-header__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

/* ×に変化 */
.td-header__hamburger.is-active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.td-header__hamburger.is-active span:nth-child(2) {
  opacity: 0;
}
.td-header__hamburger.is-active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}


@media (max-width: 1280px) {
  .td-header__hamburger {
    display: flex;
    padding: 0;
  }
}

/* ── モバイルドロワー ──────────────────── */

.td-drawer {
  position: fixed;
  inset: 64px 0 0;
  z-index: 200;
  pointer-events: none;
}

.td-drawer__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.td-drawer__panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(320px, 90vw);
  height: 100%;
  background: var(--color-bg-white);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
}

.td-drawer.is-active {
  pointer-events: all;
}

.td-drawer.is-active .td-drawer__overlay {
  opacity: 1;
}

.td-drawer.is-active .td-drawer__panel {
  transform: translateX(0);
}

/* ドロワーヘッダー */
.td-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.td-drawer__close {
  background: none;
  border: none;
  cursor: pointer;
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1;
  padding: var(--space-xs);
}

/* ドロワーナビ */
.td-drawer__nav-item {
  border-bottom: 1px solid var(--color-border);
}

.td-drawer__nav-item > a,
.td-drawer__nav-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  font-size: var(--text-md);
  font-weight: var(--font-regular);
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-md) var(--space-lg);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-base);
  text-align: left;
}

.td-drawer__nav-icon {
  position: relative;
  display: inline-block;
  width: 12px;
  height: 12px;
  flex-shrink: 0;
  font-size: 0;
}

.td-drawer__nav-icon::before,
.td-drawer__nav-icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  background-color: var(--color-text-dark);
  border-radius: 1px;
}

/* 横棒 */
.td-drawer__nav-icon::before {
  width: 12px;
  height: 1px;
  transform: translate(-50%, -50%);
}

/* 縦棒 */
.td-drawer__nav-icon::after {
  width: 1px;
  height: 12px;
  transform: translate(-50%, -50%) rotate(0deg);
  transition: transform var(--transition-normal);
}

.td-drawer__nav-item.is-open .td-drawer__nav-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

/* アコーディオン */
.td-drawer__sub-nav {
  background: var(--color-bg);
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-normal);
}

.td-drawer__nav-item.is-open .td-drawer__sub-nav {
  max-height: 500px;
  padding: var(--space-sm) 0;
}

.td-drawer__sub-nav a {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text-sub);
  text-decoration: none;
  padding: var(--space-sm) var(--space-lg);
  padding-left: calc(var(--space-lg) + var(--space-md));
  transition: color var(--transition-fast);
}

.td-drawer__sub-nav a::before {
  content: '– ';
}

.td-drawer__sub-nav a:hover {
  color: var(--color-primary);
}

/* ── レスポンシブ ──────────────────── */

@media (max-width: 1280px) {
  .td-header__nav,
  .td-header__nav-sep {
    display: none;
  }

  .td-header__search-btn,
  .td-header__action-btn {
    display: block;
    width: 24px;
    height: 24px;
    padding: 0;
  }

  .td-header__search-btn {
    position: absolute;
    top: 0;
    bottom: 0;
    right: 125px;
    margin: auto;
  }

  .td-header__search-btn svg,
  .td-header__action-btn svg {
    fill: var(--color-primary);
    width: 100%;
    height: 100%;
  }

  /* モバイルではアイコンのみ表示 */
  .td-header__mobile-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-left: auto;
  }
}

@media (min-width: 1281px) {
  .td-header__mobile-actions {
    display: none;
  }

  .td-drawer {
    display: none;
  }
}

@media (max-width: 1280px) {
  .td-header__search-btn {
    right: calc(48px + (var(--space-md) * 2) + 3.8vw)
  }
}


/* ── ページトップボタン ──────────────────── */

.td-pagetop {
  position: fixed;
  right: 12px;
  bottom: 12px;
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.td-pagetop.is-visible {
  opacity: 1;
  visibility: visible;
}

.td-pagetop img {
  display: block;
}

@media (max-width: 767px) {
  .td-pagetop {
    right: 20px;
    bottom: 20px;
  }
  .td-pagetop img {
    width: 38px;
    height: 38px;
  }
}


/* ── Footer CTA Banner ──────────────────── */

.td-footer-cta {
  background: var(--color-primary);
  padding: var(--space-xl) var(--space-sm);
  text-align: center;
}

.td-footer-cta__inner {
  width: min(var(--container-max), 100% - var(--container-pad) * 2);
  margin: 0 auto;
}

.td-footer-cta__text {
  font-size: var(--text-2xl);
  font-weight: var(--font-regular);
  color: var(--color-bg-white);
  margin-bottom: calc(var(--space-md) * 2.0);
  line-height: var(--leading-tight);
}

.td-footer-cta__buttons {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.td-footer-cta__btn {
  flex: 0 1 42%;
  font-size: var(--text-lx);
  font-weight: var(--font-medium);
  color: var(--color-bg-white);
  text-decoration: none;
  border: 1px solid var(--color-bg-white);
  padding: 1.2em var(--space-xl);
  border-radius: 5px;
  transition: background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.td-footer-cta__btn:hover {
  background: var(--color-bg-white);
  color: var(--color-primary);
}

@media (max-width: 767px) {
  .td-footer-cta {
    padding: var(--space-xl) var(--space-lg);
  }
  .td-footer-cta__buttons {
    flex-flow: column;
    align-items: center;
  }
  .td-footer-cta__btn {
    width: 100%;
    padding: 0.8em var(--space-xl);
  }
}


/* ── Footer Main ──────────────────── */

.td-footer {
  background: var(--color-text);
  color: var(--color-bg-white);
}

.td-footer a {
  color: var(--color-bg-white);
}

.td-footer__inner {
  padding-block: var(--space-xl);
  width: min(var(--container-max), 100% - var(--container-pad) * 2);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 280px 1fr;   /* TODO: Figmaで左カラム幅確認 */
  gap: var(--space-2xl);
  align-items: start;
}

/* 左カラム：ロゴ＋住所 */
.td-footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.td-footer__logo {
  max-width: 240px;
}

.td-footer__logo img {
  height: 32px;
  width: auto;
}

.td-footer__address {
  font-size: var(--text-xs);
  line-height: var(--leading-loose);
}

@media (max-width: 767px) {
  .td-footer__address {
  font-size: var(--text-md);
  line-height: var(--leading-normal);
  }
}

/* 右カラム：ナビグリッド */
.td-footer__nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.td-footer__nav-group-title {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: rgba(255,255,255,0.9);
  margin-bottom: var(--space-sm);
  letter-spacing: var(--tracking-normal);
}

.td-footer__nav-group-title a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.td-footer__nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-bottom: var(--space-sm);
}

.td-footer__nav-list li {
  line-height: var(--leading-tight);
}

.td-footer__nav-list a {
  font-size: var(--text-sm);
  font-weight: var(--font-regular);
  color: var(--color-bg-white);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.td-footer__nav-list a::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 1px;
  background-color: var(--color-bg-white);
  margin-right: 0.5em;
  vertical-align: middle;
}

.td-footer__nav-list a:hover {
}

/* 単独リンク（サブなし） */
.td-footer__nav-link {
  display: block;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.9);
  text-decoration: none;
  margin-bottom: var(--space-xs);
  letter-spacing: var(--tracking-normal);
  transition: color var(--transition-fast);
}

.td-footer__nav-group-title a:hover,
.td-footer__nav-link:hover,
.td-footer__nav-list a:hover {
  text-decoration: underline;
}


/* ── Footer Bottom ──────────────────── */

.td-footer-bottom {
  background: #556269;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-block: var(--space-md);
}

.td-footer-bottom__inner {
  width: min(var(--container-max), 100% - var(--container-pad) * 2);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.td-footer-bottom__privacy a {
  font-size: var(--text-xs);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.td-footer-bottom__privacy a:hover {
  color: rgba(255,255,255,0.9);
}

.td-footer-bottom__copyright {
  font-size: var(--text-xs);
}


/* ── Footer レスポンシブ ──────────────────── */

@media (max-width: 767px) {

  .td-footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-md);
    padding: var(--space-xl) var(--space-lg);
    width: 100%;
  }

  .td-footer__logo {
    max-width: 180px;
  }

  .td-footer__nav {
    grid-template-columns: 1fr;
    gap: 0;
  }

  /* モバイルではナビを縦積み */
  .td-footer__nav-group-title {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-block: var(--space-sm);
    margin-bottom: 0;
  }

  .td-footer__nav-list {
    padding-bottom: var(--space-sm);
  }

  .td-footer__nav-link {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-block: var(--space-sm);
    margin-bottom: 0;
  }

  .td-footer-bottom__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-sm);
  }
}