/* 共通レイアウト: 固定ヘッダー / モバイルドロワー / フッター */

/* ---- ヘッダー（旧 MUI AppBar fixed） ---- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1200;
  height: var(--header-height);
  background-color: #fff;
  color: var(--color-toolbar-text);
  box-shadow: var(--shadow-1);
}

.site-header__inner {
  display: flex;
  align-items: center;
  max-width: var(--max-width-header);
  height: 100%;
  margin: 0 auto;
  padding: 0 16px;
}

@media (min-width: 1200px) {
  .site-header__inner {
    padding: 0 30px;
  }
}

.site-header__logo {
  display: inline-flex;
  align-items: center;
  padding: 6px 8px;
}

.site-header__logo img {
  width: 100px;
}

/* PC ナビ（アンカーメニュー） */
.site-header__nav {
  display: none;
}

@media (min-width: 1200px) {
  .site-header__nav {
    display: flex;
    align-items: center;
    gap: 4px;
    padding-left: 40px;
    flex-grow: 1;
  }
}

.site-header__nav a {
  padding: 6px 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-toolbar-text);
}

.site-header__nav a:hover {
  color: var(--color-primary);
}

/* ヘッダー右側の CTA ボタン群（PC のみ表示） */
.site-header__actions {
  display: none;
}

@media (min-width: 1200px) {
  .site-header__actions {
    display: flex;
    flex: 1;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
  }
}

/* ハンバーガー（SP のみ表示） */
.site-header__menu-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--color-toolbar-text);
}

@media (min-width: 1200px) {
  .site-header__menu-button {
    display: none;
  }
}

/* ---- モバイルドロワー（旧 SwipeableDrawer anchor="top"） ---- */
.drawer {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1100;
  padding-top: var(--header-height);
  background-color: #fff;
  box-shadow: var(--shadow-1);
  transform: translateY(-100%);
  transition: transform 0.25s ease;
  visibility: hidden;
}

body.drawer-open .drawer {
  transform: translateY(0);
  visibility: visible;
}

.drawer__menu {
  padding: 8px 0;
}

.drawer__menu a {
  display: block;
  padding: 10px 16px;
  color: var(--color-toolbar-text);
}

.drawer__cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
  padding: 0 16px;
}

.drawer__close {
  display: flex;
  justify-content: center;
  width: 100%;
  padding: 10px 0 8px;
  color: var(--color-toolbar-text);
}

.drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.4);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease;
}

body.drawer-open .drawer-overlay {
  opacity: 1;
  visibility: visible;
}

@media (prefers-reduced-motion: reduce) {
  .drawer,
  .drawer-overlay {
    transition: none;
  }
}

/* ヘッダー分の余白（旧 LandingLayout の paddingTop: theme.mixins.toolbar） */
.page-body {
  padding-top: var(--header-height);
}

/* ---- フッター ---- */
.site-footer {
  margin-top: 160px;
  background-color: var(--color-paper);
}

@media (min-width: 600px) {
  .site-footer {
    margin-top: 184px;
  }
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  width: 90%;
  max-width: 1000px;
  margin: 32px auto 0;
  padding: 16px;
  text-align: left;
}

@media (min-width: 600px) {
  .site-footer__nav {
    flex-wrap: nowrap;
    width: 80%;
    padding: 24px;
  }
}

.site-footer__group {
  width: 42%;
  margin: 10px 8px;
}

@media (min-width: 600px) {
  .site-footer__group {
    width: 25%;
    margin: 0;
  }
}

.site-footer__group h2 {
  padding: 8px 0;
  font-size: 1rem;
  font-weight: 500;
}

.site-footer__group a {
  display: block;
  padding: 8px 0;
  font-size: 0.875rem;
}

.site-footer__group a:hover {
  color: var(--color-primary);
}

.site-footer__copyright {
  padding: 16px;
  text-align: center;
  color: #fff;
  background-color: var(--color-primary);
}