@charset "UTF-8";

/* ============================================================
   Eight Knot - Header Styles
   構造：
     .header（外枠・固定・全幅）
       └ .header-content（中身・max-width・縦中央）
            ├ .header__logo
            └ .header__nav
   色は style.css / common.css の :root 変数を使用。
   単体でも壊れないよう var() にフォールバック値を併記。
   ============================================================ */

:root {
  --header-h: 88px;
  --header-h-sp: 64px;
  --logo-h: 40px; /* PCロゴの高さ */
  --logo-h-sp: 28px; /* SPロゴの高さ */

  /* header.css 内で使う派生色（:root に無ければここで補完） */
  --color-accent-light: #d49c4f; /* さし色の明るい版（ホバー） */
  --color-gray: #b8b3ad; /* サブテキストのグレー */
}

/* ============== HEADER 外枠（固定・全幅） ============== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h);
  background: var(--color-bk, #141414);
  background-image: radial-gradient(
    rgba(255, 255, 255, 0.025) 1px,
    transparent 1px
  );
  background-size: 3px 3px;
  z-index: 1000;
  display: flex;
  justify-content: center; /* 中身を画面中央に */
}
.header,
.header * {
  box-sizing: border-box;
}
/* ============== HEADER 中身（縦中央・最大幅制限） ============== */
.header-content {
  width: 100%;
  max-width: 1400px;
  height: 100%;
  display: flex;
  align-items: center; /* 縦中央 */
  justify-content: space-between;
  padding: 0 20px;
}

/* ロゴ */
.header__logo,
.site-footer__logo {
  display: flex;
  align-items: center;
  padding-left: 0;
  text-decoration: none;
}
.header__logo-img {
  display: block;
  width: auto;
  height: var(--logo-h);
  object-fit: contain;
}

.header__logo-heading {
  margin: 0;
  padding: 0;
  font-size: inherit;
  line-height: 0; /* 画像下の余白も消える */
  display: inline-flex; /* 中の<a>のサイズにぴったり合わせる */
}

/* ナビ */
.header__nav {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 20px;
}

/* ハンバーガー */
.header__menu-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-light, #f3f3f3);
  padding: 0;
}
.header__menu-btn .bars {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 30px;
}
.header__menu-btn .bars span {
  display: block;
  height: 1px;
  width: 100%;
  background: var(--color-text-light, #f3f3f3);
  transition: 0.3s;
}
.header__menu-btn .label {
  font-size: 1.1rem;
  letter-spacing: 0.12em;
}
.header__menu-btn:hover .bars span {
  background: var(--color-accent-light, #d49c4f);
}
.header__menu-btn:hover .label {
  color: var(--color-accent-light, #d49c4f);
}

/* お問い合わせ（さし色ブロック） */
.header__contact {
  display: flex;
  align-items: center;
  font-size: 1.6rem;
  gap: 10px;
  padding: 0 20px;
  background: var(--color-accent, #c58b21);
  color: var(--color-text-light, #f3f3f3);
  text-decoration: none;
  letter-spacing: 0.06em;
  transition: background 0.25s;
  align-self: stretch;
}
.contact-icon {
  width: 16px;
  height: 16px;
}
.header__contact:hover {
  background: var(--color-accent-light, #d49c4f);
}

/* ============== OVERLAY MENU ============== */
.menu-overlay .header-clause {
  top: 0;
  left: 0;
  right: 0;
  max-width: 1400px;
  width: 100%;
  height: 88px;
  padding: 0 20px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: fixed;
}

.menu-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-bk);
  background-size: 3px 3px;
  z-index: 1100;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.4s ease,
    visibility 0.4s ease;
  overflow-y: auto;
}
.menu-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

/* メニュー内ロゴ（左上・スクロールしても固定） */
.menu-overlay__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}
.menu-overlay__logo-img {
  display: block;
  width: auto;
  height: var(--logo-h, 40px);
  object-fit: contain;
}
.menu-overlay__close {
  position: relative;
  width: 32px;
  height: 32px;
  margin: 0;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.menu-overlay__close::before,
.menu-overlay__close::after {
  content: "";
  position: absolute;
  width: 32px;
  height: 1.5px;
  background: var(--color-text-light, #f3f3f3);
  transition: 0.25s;
}
.menu-overlay__close::before {
  transform: rotate(45deg);
}
.menu-overlay__close::after {
  transform: rotate(-45deg);
}
.menu-overlay__close:hover::before,
.menu-overlay__close:hover::after {
  background: var(--color-accent, #c58b21);
}

.menu-overlay__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 140px 40px 80px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 80px;
}

/* メインナビ */
.menu-nav {
  list-style: none;
  padding: 0;
  margin: 0;
}
.menu-nav > li {
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.menu-nav > li > a,
.menu-nav > li > .menu-nav__toggle {
  display: flex;
  align-items: center;
  gap: 16px;

  width: 100%;
  padding: 20px 4px;
  color: var(--color-text-light, #f3f3f3);
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 2rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  font-family: var(--font-body);
  transition: 0.25s;
}
.menu-nav > li > a:hover,
.menu-nav > li > .menu-nav__toggle:hover {
  padding-left: 18px;
  color: var(--color-accent-light, #d49c4f);
}
.menu-nav .num {
  font-size: 1.6rem;
  color: var(--color-accent, #c58b21);
  font-style: italic;
  letter-spacing: 0.1em;
  min-width: 28px;
  font-weight: 400;
}
.menu-nav__toggle .en,
.menu-nav > li > a .en {
  margin-left: auto;
  font-size: 1.2rem;
  color: var(--color-gray, #b8b3ad);
  letter-spacing: 0.1em;
  font-style: italic;
  font-weight: 400;
}
.menu-nav__arrow {
  width: 16px;
  height: 16px;
  margin-left: 14px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
  color: var(--color-accent, #c58b21);
}
.menu-nav__toggle[aria-expanded="true"] .menu-nav__arrow {
  transform: rotate(180deg);
}

/* ドロップダウン（暮らし） */
.menu-nav__sub {
  list-style: none;
  padding: 0;
  margin: 0;
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.4s ease;
}
.menu-nav__toggle[aria-expanded="true"] + .menu-nav__sub {
  max-height: 320px;
}
.menu-nav__sub li a {
  display: block;
  padding: 13px 4px 13px 48px;
  color: var(--color-text-light);
  text-decoration: none;
  font-size: 1.6rem;
  letter-spacing: 0.05em;
  transition: 0.25s;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.menu-nav__sub li:first-child a {
  border-top: none;
}
.menu-nav__sub li a:hover {
  color: var(--color-accent-light, #d49c4f);
  padding-left: 56px;
}
.menu-nav__sub li a::before {
  content: "・";
  color: var(--color-accent, #c58b21);
  margin-right: 4px;
}

/* 右カラム：製品一覧 */
.menu-sub {
  padding-top: 8px;
}
.menu-sub__head {
  font-size: 1.2rem;
  letter-spacing: 0.18em;
  color: var(--color-accent, #c58b21);
  font-style: italic;
  margin-bottom: 8px;
  font-family: var(--font-body);
}
.menu-sub__products {
  list-style: none;
  padding: 0;
  margin: 0 0 40px;
  font-family: var(--font-ja);
  font-size: 1.6rem;
}
.menu-sub__products > li {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.menu-sub__products > li > a {
  display: flex;
  align-items: center;
  padding: 16px 4px;
  color: var(--color-text-light, #f3f3f3);
  text-decoration: none;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: 0.25s;
  font-size: 2rem;
}
.menu-sub__products > li > a:hover {
  color: var(--color-accent-light, #d49c4f);
  padding-left: 10px;
}
.menu-sub__products .model-en {
  margin-left: 10px;
  font-size: 1.2rem;
  color: var(--color-gray, #b8b3ad);
  font-style: italic;
  letter-spacing: 0.06em;
}

.menu-sub__contact {
  display: none;
}

.menu-sub__sns {
  display: flex;
  gap: 14px;
  margin-top: 32px;
}
.menu-sub__sns a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 9px;
  color: var(--color-text-light, #f3f3f3);
  transition: 0.25s;
}
.menu-sub__sns a:hover {
  border-color: var(--color-accent, #c58b21);
  color: var(--color-accent, #c58b21);
}
.menu-sub__sns svg {
  width: 19px;
  height: 19px;
}
.fv__overlay {
  pointer-events: none;
}

/* ============== 固定ヘッダー分の余白 ============== */
.has-fixed-header {
  padding-top: var(--header-h);
}

/* ============== SP ============== */
@media (max-width: 768px) {
  .header {
    height: var(--header-h-sp);
  }
  .menu-overlay .header-clause {
    height: 64px;
    padding-right: 20px;
    background: color-mix(in srgb, var(--color-bk, #141414) 97%, transparent);
    position: absolute; /* fixed → absolute */
    top: 0;
    left: 0;
    right: 0;
  }
  .header__logo-img {
    height: var(--logo-h-sp);
  }

  .header__contact {
    display: none;
  } /* SPはハンバーガー内のお問い合わせのみ */

  .header__menu-btn .label {
    display: none;
  }
  .header__menu-btn .bars {
    width: 26px;
  }
  .menu-sub__contact {
    display: block;
    margin-top: 8px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 34px;
    font-family: var(--font-ja);
    background: var(--color-accent, #c58b21);
    color: var(--color-text-light, #f3f3f3);
    text-decoration: none;
    font-size: 1.5rem;
    letter-spacing: 0.06em;
    transition: 0.25s;
  }
  .menu-sub__contact:hover {
    background: var(--color-accent-light, #d49c4f);
  }
  .menu-overlay__inner {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 100px 20px 120px;
  }

  .menu-overlay__logo-img {
    height: var(--logo-h-sp, 28px);
  }
  .menu-nav > li > a,
  .menu-nav > li > .menu-nav__toggle {
    font-size: 1.6rem;
    padding: 18px 4px;
  }
  .menu-nav > li > a .en,
  .menu-nav__toggle .en {
    display: none;
  }

  .menu-sub {
    padding-top: 36px;
    margin-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }

  .has-fixed-header {
    padding-top: var(--header-h-sp);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}