/* =========================================================
  Design Palette Header
  - fixed header + spacer
  - 下のTOP/記事ページを潰さない構造
  - PC / Tablet / SP responsive header
  - Scroll shrink with stable threshold
  - Hamburger menu panel
  - Search panel
  - 375px以下で横スクロール対応
========================================================= */


/* =========================
  1. Reset / Base
========================= */

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  min-width: 0;
  /*
    【375px横スクロール対応】
    overflow-x: auto にすることで、body が 375px を下回らない一方、
    viewport がそれより狭い場合に横スクロールが出るようになる。
    clip にすると横スクロール自体が出なくなるため auto に変更。
    position: fixed は viewport 基準なので、overflow-x の値に影響されない。
  */
  overflow-x: auto;
  scrollbar-gutter: stable;
}

body {
  /*
    【375px横スクロール対応】
    375px 以下のとき body がつぶれず、横スクロールで見られるようにする。
  */
  min-width: 375px;
  overflow-x: visible;
  font-family: "Noto Sans JP", sans-serif;
  color: #222222;
  background: #f7f7f7;
}

body.is-menu-open,
body.is-search-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  padding: 0;
  border: none;
  background: transparent;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

img {
  display: block;
  max-width: 100%;
}


/* =========================
  2. Variables
========================= */

:root {
  --color-text: #222222;
  --color-bg: #f7f7f7;
  --color-white: #ffffff;
  --color-border: #dddddd;
  --color-placeholder: #cccccc;

  --gradient-header-line: linear-gradient(
    90deg,
    #D7000F 0%,
    #88017C 25%,
    #1B1C80 50%,
    #009043 75%,
    #FFE100 100%
  );

  --header-pc-height: 124px;
  --header-pc-body-height: 120px;
  --header-pc-line-height: 4px;

  --header-pc-scrolled-height: 84px;
  --header-pc-scrolled-body-height: 80px;

  --header-tab-height: 84px;
  --header-tab-body-height: 80px;
  --header-tab-line-height: 4px;

  --header-tab-scrolled-height: 68px;
  --header-tab-scrolled-body-height: 64px;

  --header-sp-height: 74px;
  --header-sp-body-height: 72px;
  --header-sp-line-height: 2px;

  --header-sp-scrolled-height: 58px;
  --header-sp-scrolled-body-height: 56px;

  --current-header-height: var(--header-pc-height);
  --current-header-body-height: var(--header-pc-body-height);
  --current-header-line-height: var(--header-pc-line-height);

  --transition-header: 0.25s ease;
}


/* =========================
  3. Header / Common
========================= */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  width: 100%;
  /*
    【375px横スクロール対応】
    position: fixed は viewport 幅を基準にするため、
    viewport が 375px 以下になるとヘッダーも縮む。
    min-width を付けることで body と同じ 375px を保つ。
  */
  min-width: 375px;
  height: var(--current-header-height);
  background: var(--color-white);
  transition: height var(--transition-header);
}

body.admin-bar .site-header {
  top: 32px;
}

@media (max-width: 782px) {
  body.admin-bar .site-header {
    top: 46px;
  }
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: var(--current-header-line-height);
  background: var(--gradient-header-line);
}

.site-header-spacer {
  width: 100%;
  height: var(--current-header-height);
  transition: height var(--transition-header);
  /*
    admin-bar 時の +32px override は削除済み。
    WordPress が html { margin-top: 32px } を自動で付けるため、
    spacer に追加すると二重になり余白が出る。
  */
}

.site-header__inner {
  position: relative;
  width: 1200px;
  max-width: 100%;
  height: var(--current-header-body-height);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 276px 496px 276px;
  column-gap: 76px;
  align-items: center;
  transition: height var(--transition-header);
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: 76px;
}

.site-header__nav--left {
  justify-content: flex-end;
}

.site-header__nav--right {
  justify-content: flex-start;
}

.site-header__link {
  color: var(--color-text);
  font-family: "Noto Sans JP", sans-serif;
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  transition:
    font-size var(--transition-header),
    opacity 0.2s ease;
}

.site-header__link:hover {
  opacity: 0.7;
}

.site-header__logo {
  display: block;
  justify-self: center;
  width: 496px;
  height: 60px;
  transition:
    width var(--transition-header),
    height var(--transition-header);
}

.site-header__logo-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.site-header__icon-button {
  display: none;
}

.site-header__svg-icon {
  display: block;
  flex-shrink: 0;
}

.site-header__svg-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.site-header__svg-icon--close {
  display: none;
}

.site-header__icon-label--close,
.site-header__icon-label--search-close {
  display: none;
}


/* =========================
  4. Header / PC
========================= */

@media (min-width: 1200px) {
  body {
    --current-header-height: var(--header-pc-height);
    --current-header-body-height: var(--header-pc-body-height);
    --current-header-line-height: var(--header-pc-line-height);
  }

  body.is-header-scrolled {
    --current-header-height: var(--header-pc-scrolled-height);
    --current-header-body-height: var(--header-pc-scrolled-body-height);
  }

  .site-header.is-scrolled .site-header__inner {
    width: 960px;
    grid-template-columns: 238px 331px 238px;
    column-gap: 76px;
  }

  .site-header.is-scrolled .site-header__logo {
    width: 331px;
    height: 40px;
  }

  .site-header.is-scrolled .site-header__link {
    font-size: 16px;
  }

  .site-header__search-button,
  .site-header__menu-button,
  .menu-panel,
  .search-panel {
    display: none !important;
  }
}


/* =========================
  5. Header / Tablet
  - 481px〜1199px
========================= */

@media (min-width: 481px) and (max-width: 1199px) {
  body {
    --current-header-height: var(--header-tab-height);
    --current-header-body-height: var(--header-tab-body-height);
    --current-header-line-height: var(--header-tab-line-height);
  }

  body.is-header-scrolled {
    --current-header-height: var(--header-tab-scrolled-height);
    --current-header-body-height: var(--header-tab-scrolled-body-height);
  }

  .site-header__inner,
  .site-header.is-scrolled .site-header__inner {
    width: 100%;
    max-width: 768px;
    margin-inline: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    grid-template-columns: none;
    column-gap: 0;
  }

  .site-header__nav {
    display: none;
  }

  .site-header__logo,
  .site-header.is-scrolled .site-header__logo,
  body.is-menu-open .site-header__logo,
  body.is-search-open .site-header__logo {
    position: absolute;
    left: 50%;
    width: auto;
    max-width: calc(100% - 208px);
    transform: translateX(-50%);
  }

  .site-header__logo {
    height: 40px;
  }

  .site-header.is-scrolled .site-header__logo {
    height: 32px;
  }

  .site-header__icon-button {
    position: absolute;
    top: 0;
    width: 64px;
    height: var(--current-header-body-height);
    display: block;
    color: var(--color-text);
    font-family: "Noto Sans JP", sans-serif;
    font-size: 12px;
    font-weight: 700;
    line-height: 1;
    transition: height var(--transition-header);
  }

  .site-header__search-button {
    left: 52px;
  }

  .site-header__menu-button {
    right: 52px;
  }

  .site-header__search-button .site-header__svg-icon--search,
  .site-header__search-button .site-header__svg-icon--close {
    position: absolute;
    left: 50%;
    top: 16px;
    width: 32px;
    height: 32px;
    transform: translateX(-50%);
    transition:
      top var(--transition-header),
      width var(--transition-header),
      height var(--transition-header);
  }

  .site-header__menu-button .site-header__svg-icon--menu,
  .site-header__menu-button .site-header__svg-icon--close {
    position: absolute;
    left: 50%;
    top: 20px;
    width: 32px;
    height: 24px;
    transform: translateX(-50%);
    transition:
      top var(--transition-header),
      width var(--transition-header),
      height var(--transition-header);
  }

  .site-header__icon-label {
    position: absolute;
    left: 50%;
    bottom: 12px;
    display: block;
    width: 64px;
    margin-top: 0;
    transform: translateX(-50%);
    text-align: center;
    font-size: 12px;
    line-height: 1;
    transition: bottom var(--transition-header);
  }

  .site-header__icon-label--search-close,
  .site-header__icon-label--close {
    display: none;
  }

  .site-header.is-scrolled .site-header__search-button .site-header__svg-icon--search,
  .site-header.is-scrolled .site-header__search-button .site-header__svg-icon--close {
    top: 12px;
    width: 28px;
    height: 28px;
  }

  .site-header.is-scrolled .site-header__menu-button .site-header__svg-icon--menu,
  .site-header.is-scrolled .site-header__menu-button .site-header__svg-icon--close {
    top: 16px;
    width: 28px;
    height: 21px;
  }

  .site-header.is-scrolled .site-header__icon-label {
    bottom: 6px;
  }

  body.is-search-open .site-header__search-button .site-header__svg-icon--search {
    display: none;
  }

  body.is-search-open .site-header__search-button .site-header__svg-icon--close {
    display: block;
  }

  body.is-search-open .site-header__icon-label--search {
    display: none;
  }

  body.is-search-open .site-header__icon-label--search-close {
    display: block;
  }

  body.is-menu-open .site-header__menu-button .site-header__svg-icon--menu {
    display: none;
  }

  body.is-menu-open .site-header__menu-button .site-header__svg-icon--close {
    display: block;
  }

  body.is-menu-open .site-header__icon-label--menu {
    display: none;
  }

  body.is-menu-open .site-header__icon-label--close {
    display: block;
  }
}


/* =========================
  6. Header / SP
  - 480px以下
========================= */

@media (max-width: 480px) {
  body {
    --current-header-height: var(--header-sp-height);
    --current-header-body-height: var(--header-sp-body-height);
    --current-header-line-height: var(--header-sp-line-height);
  }

  body.is-header-scrolled {
    --current-header-height: var(--header-sp-scrolled-height);
    --current-header-body-height: var(--header-sp-scrolled-body-height);
  }

  .site-header__inner,
  .site-header.is-scrolled .site-header__inner {
    width: 100%;
    min-width: 0;
    max-width: none;
    margin-inline: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    grid-template-columns: none;
    column-gap: 0;
  }

  .site-header__nav {
    display: none;
  }

  .site-header__logo,
  .site-header.is-scrolled .site-header__logo,
  body.is-menu-open .site-header__logo,
  body.is-search-open .site-header__logo {
    position: absolute;
    left: 50%;
    width: auto;
    max-width: calc(100% - 144px);
    transform: translateX(-50%);
  }

  .site-header__logo {
    height: 24px;
  }

  .site-header.is-scrolled .site-header__logo {
    height: 20px;
  }

  .site-header__icon-button {
    position: absolute;
    top: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    color: var(--color-text);
    transform: translateY(-50%);
  }

  .site-header__search-button,
  .site-header.is-scrolled .site-header__search-button {
    left: 24px;
    right: auto;
  }

  .site-header__menu-button,
  .site-header.is-scrolled .site-header__menu-button {
    right: 24px;
    left: auto;
  }

  .site-header__icon-label,
  .site-header__icon-label--search,
  .site-header__icon-label--search-close,
  .site-header__icon-label--menu,
  .site-header__icon-label--close,
  body.is-search-open .site-header__icon-label--search,
  body.is-search-open .site-header__icon-label--search-close,
  body.is-menu-open .site-header__icon-label--menu,
  body.is-menu-open .site-header__icon-label--close {
    display: none !important;
  }

  .site-header__search-button .site-header__svg-icon--search,
  .site-header__search-button .site-header__svg-icon--close {
    width: 24px;
    height: 24px;
  }

  .site-header__menu-button .site-header__svg-icon--menu {
    width: 24px;
    height: 18px;
  }

  .site-header__menu-button .site-header__svg-icon--close {
    width: 24px;
    height: 24px;
  }

  .site-header.is-scrolled .site-header__search-button .site-header__svg-icon--search,
  .site-header.is-scrolled .site-header__search-button .site-header__svg-icon--close {
    width: 22px;
    height: 22px;
  }

  .site-header.is-scrolled .site-header__menu-button .site-header__svg-icon--menu {
    width: 22px;
    height: 16.5px;
  }

  .site-header.is-scrolled .site-header__menu-button .site-header__svg-icon--close {
    width: 22px;
    height: 22px;
  }

  body.is-search-open .site-header__search-button .site-header__svg-icon--search {
    display: none;
  }

  body.is-search-open .site-header__search-button .site-header__svg-icon--close {
    display: block;
  }

  body.is-menu-open .site-header__menu-button .site-header__svg-icon--menu {
    display: none;
  }

  body.is-menu-open .site-header__menu-button .site-header__svg-icon--close {
    display: block;
  }
}


/* =========================
  7. Header / Open State
========================= */

body.is-menu-open .site-header__search-button,
body.is-search-open .site-header__menu-button {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}


/* =========================
  8. Menu Panel / Common
========================= */

.menu-panel {
  position: fixed;
  left: 0;
  top: var(--current-header-height);
  width: 100%;
  /*
    【375px横スクロール対応】
    position: fixed は viewport 基準のため、
    viewport が 375px 以下になるとパネルも縮む。
    min-width を付けて body と幅を合わせる。
  */
  min-width: 375px;
  height: calc(100dvh - var(--current-header-height));
  background: var(--color-bg);
  z-index: 900;
  overflow-x: hidden;
  overflow-y: auto;
}

body.admin-bar .menu-panel {
  top: calc(var(--current-header-height) + 32px);
  height: calc(100dvh - var(--current-header-height) - 32px);
}

@media (max-width: 782px) {
  body.admin-bar .menu-panel {
    top: calc(var(--current-header-height) + 46px);
    height: calc(100dvh - var(--current-header-height) - 46px);
  }
}

.menu-panel[hidden] {
  display: none;
}

.menu-panel__nav {
  width: min(680px, calc(100% - 48px));
  height: auto;
  margin-inline: auto;
  padding-top: 48px;
  padding-bottom: 64px;
}

.menu-panel__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.menu-panel__item {
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 40px;
  margin-bottom: 40px;
}

.menu-panel__item:last-child {
  margin-bottom: 0;
}

.menu-panel__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--color-text);
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 700;
  line-height: 1.3;
}

.menu-panel__link:hover {
  opacity: 0.7;
}

.menu-panel__arrow {
  display: block;
  flex: 0 0 auto;
  border-top: 3px solid var(--color-text);
  border-right: 3px solid var(--color-text);
  transform: rotate(45deg);
}


/* =========================
  9. Menu Panel / Tablet
========================= */

@media (min-width: 481px) and (max-width: 1199px) {
  .menu-panel__link {
    font-size: 32px;
  }

  .menu-panel__arrow {
    width: 13px;
    height: 13px;
  }
}


/* =========================
  10. Menu Panel / SP
========================= */

@media (max-width: 480px) {
  .menu-panel__nav {
    width: min(335px, calc(100% - 40px));
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .menu-panel__item {
    padding-bottom: 32px;
    margin-bottom: 32px;
  }

  .menu-panel__link {
    font-size: 24px;
  }

  .menu-panel__arrow {
    width: 10px;
    height: 10px;
    border-top-width: 2px;
    border-right-width: 2px;
  }
}


/* =========================
  11. Search Panel / Common
========================= */

.search-panel {
  position: fixed;
  left: 0;
  top: var(--current-header-height);
  width: 100%;
  /*
    【375px横スクロール対応】
    menu-panel と同様、min-width を付けて body と幅を合わせる。
  */
  min-width: 375px;
  height: calc(100dvh - var(--current-header-height));
  background: var(--color-bg);
  z-index: 900;
  overflow-x: hidden;
  overflow-y: auto;
}

body.admin-bar .search-panel {
  top: calc(var(--current-header-height) + 32px);
  height: calc(100dvh - var(--current-header-height) - 32px);
}

@media (max-width: 782px) {
  body.admin-bar .search-panel {
    top: calc(var(--current-header-height) + 46px);
    height: calc(100dvh - var(--current-header-height) - 46px);
  }
}

.search-panel[hidden] {
  display: none;
}

.search-panel__inner {
  width: min(680px, calc(100% - 48px));
  margin-inline: auto;
  padding-top: 56px;
  padding-bottom: 64px;
}

.search-panel__block {
  margin: 0;
}

.search-panel__title {
  margin: 0;
  color: var(--color-text);
  font-family: "Noto Sans JP", sans-serif;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.3;
}

.search-panel__title--main {
  font-size: 32px;
}

.search-panel__form {
  position: relative;
  margin: 16px 0 0;
}

.search-panel__label {
  position: absolute;
  width: 1px;
  height: 1px;
  clip-path: inset(50%);
  overflow: hidden;
  white-space: nowrap;
}

.search-panel__input {
  display: block;
  width: min(640px, 100%);
  height: 40px;
  border: 1px solid var(--color-text);
  border-radius: 4px;
  background: transparent;
  color: var(--color-text);
  font-family: "Noto Sans JP", sans-serif;
  font-size: 20px;
  font-weight: 700;
  text-align: center;
  outline: none;
}

.search-panel__input::placeholder {
  color: var(--color-placeholder);
  opacity: 1;
}

.search-panel__line {
  width: 100%;
  height: 2px;
  margin: 24px 0;
  border: 0;
  background: var(--color-border);
}

.search-panel__link-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.search-panel__link-list a {
  color: var(--color-text);
  font-family: "Noto Sans JP", sans-serif;
  font-size: 18px;
  font-weight: 400;
  line-height: 1.3;
}

.search-panel__link-list a:hover,
.search-tag:hover {
  opacity: 0.7;
}

.search-panel__block--tags .search-panel__title {
  margin-bottom: 16px;
}

.search-panel__tag-layout--tab,
.search-panel__tag-layout--sp {
  display: none;
}

.search-panel__tag-layout {
  flex-direction: column;
  gap: 8px;
}

.search-panel__tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.search-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border-radius: 999px;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
}

.search-tag--outline {
  border: 1px solid var(--color-text);
  background: var(--color-white);
  color: var(--color-text);
}

.search-tag--filled {
  border: 1px solid var(--color-text);
  background: var(--color-text);
  color: var(--color-white);
}


/* =========================
  12. Search Panel / Tablet
========================= */

@media (min-width: 481px) and (max-width: 1199px) {
  .search-panel__tag-layout--tab {
    display: flex;
  }

  .search-panel__tag-layout--sp {
    display: none;
  }
}


/* =========================
  13. Search Panel / SP
========================= */

@media (max-width: 480px) {
  .search-panel__inner {
    width: min(335px, calc(100% - 40px));
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .search-panel__title--main {
    font-size: 28px;
  }

  .search-panel__form {
    margin-top: 8px;
  }

  .search-panel__input {
    width: 100%;
    font-size: 16px;
  }

  .search-panel__tag-layout--tab {
    display: none;
  }

  .search-panel__tag-layout--sp {
    display: flex;
  }
}


/* =========================
  14. Stability
========================= */

body.is-resizing .site-header,
body.is-resizing .site-header *,
body.is-resizing .site-header-spacer,
body.is-resizing .menu-panel,
body.is-resizing .menu-panel *,
body.is-resizing .search-panel,
body.is-resizing .search-panel * {
  transition: none !important;
}

@media (min-width: 1200px) {
  body.is-menu-open,
  body.is-search-open {
    overflow: auto;
  }

  .menu-panel,
  .search-panel {
    display: none !important;
  }
}