/*
Theme Name: zoku original
Description: zoku.jp オリジナルテーマ（SWELLから独立）
Author: ResoDesign
Version: 1.0
*/

/* =========================
   ヘッダー
========================= */
.zk-header {
  padding: 20px 40px;
}

.zk-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.zk-nav__list {
  display: flex;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.zk-nav__item a {
  position: relative;
  display: inline-block;
  perspective: 600px;
  height: 1.6em;
  overflow: hidden;
  text-decoration: none;
  font-family: 'Aboreto', sans-serif;
  letter-spacing: 0.2em;
  font-weight: 400;
  font-size: 0.85rem;
  color: #333;
}

.zk-nav__en {
  display: block;
  transform: rotateX(0deg);
  opacity: 1;
  transition: transform 0.4s ease, opacity 0.4s ease;
}

.zk-nav__jp {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.9em;
  letter-spacing: 0.05em;
  transform: rotateX(-90deg);
  opacity: 0;
  transition: transform 0.4s ease, opacity 0.4s ease;
}

.zk-nav__item a:hover .zk-nav__en {
  transform: rotateX(90deg);
  opacity: 0;
}

.zk-nav__item a:hover .zk-nav__jp {
  transform: rotateX(0deg);
  opacity: 1;
}

/* =========================
   フッター
========================= */
.zk-footer {
  padding: 60px 40px 20px;
}

.zk-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 40px;
}

.zk-footer__logo img {
  width: 102px;
  height: auto;
}

.zk-footer__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 20px;
}

.zk-footer__btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 368px;
  box-sizing: border-box;
  padding: 12px 43.2px;
  border: 1px solid #ccc;
  background: #ffffff;
  text-decoration: none;
  color: #444444;
  font-family: "Noto Sans JP", "Aboreto", sans-serif;
  font-size: 14.4px;
  letter-spacing: 0.05em;
  line-height: 1.6;
}

.zk-footer__btn-text {
  display: flex;
  flex-direction: column;
}

.zk-footer__btn-en,
.zk-footer__btn-jp {
  font: inherit;
  color: inherit;
}

/* 矢印（下側の羽根がない、斜め線だけの矢印） */
.zk-footer__btn-arrow {
  position: relative;
  display: inline-block;
  width: 26px;
  height: 14px;
  flex-shrink: 0;
}

.zk-footer__btn-arrow::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 1px;
  background: #444444;
}

.zk-footer__btn-arrow::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 0;
  width: 9px;
  height: 1px;
  background: #444444;
  transform-origin: right center;
  transform: translateY(-3.5px) rotate(45deg);
}

.zk-footer__insta {
  color: #444444;
  display: inline-flex;
}

.zk-footer__foot {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  margin-top: 40px;
  padding-top: 20px;
}

.zk-footer__nav {
  display: flex;
  gap: 20px;
  list-style: none;
  margin: 0 0 10px;
  padding: 0;
}

/* プライバシーポリシー */
.zk-footer__nav li {
  border-left: 1px solid #ccc;
  border-right: 1px solid #ccc;
  padding: 0 9.75px;
}

.zk-footer__nav a {
  color: #444444;
  text-decoration: none;
  font-family: "Noto Sans JP", "Aboreto", sans-serif;
  font-size: 13px;
}

.zk-copyright {
  font-size: 0.75rem;
  color: #999;
  margin: 0;
}

/* =========================
   SPメニューボタン（ハンバーガー）
========================= */
.zk-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.zk-menu-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background: #333;
}

/* =========================
   SPメニュー本体
========================= */
.zk-sp-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transform: translateX(100%);
  transition: transform 0.4s ease;
  z-index: 999;
}

.zk-sp-menu.is-open {
  transform: translateX(0);
}

.zk-menu-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  font-size: 2rem;
  cursor: pointer;
}

.zk-sp-menu__list {
  list-style: none;
  padding: 0;
  text-align: center;
}

.zk-sp-menu__list li {
  margin-bottom: 24px;
}

.zk-sp-menu__list a {
  text-decoration: none;
  color: #333;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
}

/* =========================
   スマホ表示の切り替え
========================= */
@media (max-width: 767px) {
  .zk-nav {
    display: none;
  }
  .zk-menu-btn {
    display: flex;
  }
}