/* ==========================================================
   共通レイアウト：ヘッダー / フッター
   ※ 色はすべて css/common.css の :root 変数を使用
   ※ js/common.js が使う id/class：#common_header、.common_header__toggle、#common_header_drawer、.common_header--lock
   ========================================================== */
html.common_header--lock { overflow: hidden; }

.common_header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: 80px;
  background: rgba(255, 253, 247, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-line);
}
@media (max-width: 767px) {
  .common_header { height: 60px; }
}

.common_header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding-inline: var(--gutter);
}

.common_header__logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text);
}
.common_header__logo img { width: 36px; height: 36px; }
@media (max-width: 767px) {
  .common_header__logo img { width: 30px; height: 30px; }
}
.common_header__logo-text { display: flex; flex-direction: column; line-height: 1.25; }
.common_header__logo-ja { font-family: var(--font-mincho); font-size: 19px; font-weight: 700; letter-spacing: 0.06em; }
.common_header__logo-en { font-family: var(--font-en); font-size: 11px; letter-spacing: 0.18em; color: var(--color-brand); }
@media (max-width: 767px) {
  .common_header__logo-ja { font-size: 17px; }
}

.common_header__nav { display: none; }
@media (min-width: 1200px) {
  .common_header__nav { display: block; }
}
.common_header__list { display: flex; align-items: center; gap: 36px; }
.common_header__link {
  position: relative;
  font-size: 14px;
  letter-spacing: 0.1em;
  padding-block: 8px;
}
.common_header__link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--color-brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.common_header__link:hover::after,
.common_header__link[aria-current="page"]::after { transform: scaleX(1); }

.common_header__cta {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 999px;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 14px;
  letter-spacing: 0.08em;
  transition: background-color 0.3s ease;
}
.common_header__cta:hover { background: var(--color-accent-dark); }

.common_header__toggle {
  position: relative;
  width: 44px;
  height: 44px;
}
@media (min-width: 1200px) {
  .common_header__toggle { display: none; }
}
.common_header__toggle-bar,
.common_header__toggle-bar::before {
  position: absolute;
  left: 11px;
  width: 22px;
  height: 1px;
  background: var(--color-text);
  transition: transform 0.3s ease, top 0.3s ease;
}
.common_header__toggle-bar { top: 21px; }
.common_header__toggle-bar::before { content: ""; top: 7px; left: 0; }
.common_header.is-open .common_header__toggle-bar { transform: rotate(45deg); }
.common_header.is-open .common_header__toggle-bar::before { top: 0; transform: rotate(-90deg); }

.common_header__drawer {
  position: fixed;
  inset: 60px 0 0 0;
  z-index: 99;
  padding: 32px var(--gutter);
  background: var(--color-base);
  overflow-y: auto;
}
.common_header__drawer[hidden] { display: none; }
.common_header__drawer-link {
  display: block;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-line);
  font-family: var(--font-mincho);
  font-size: 18px;
  letter-spacing: 0.1em;
}

/* ---------- フッター ---------- */
.common_footer {
  padding-block: 80px 32px;
  background: var(--color-dark);
  color: var(--color-white);
}
@media (max-width: 767px) {
  .common_footer { padding-block: 56px 24px; }
}
.common_footer__top {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--color-overlay-white);
}
@media (max-width: 767px) {
  .common_footer__top { flex-direction: column; gap: 36px; }
}
.common_footer__name { margin: 0 0 16px; font-family: var(--font-mincho); font-size: 22px; font-weight: 700; letter-spacing: 0.06em; }
.common_footer__info { margin: 0; font-size: 13px; line-height: 2; opacity: 0.85; text-align: start; }
.common_footer__list { display: grid; gap: 12px; font-size: 14px; letter-spacing: 0.08em; }
.common_footer__link:hover { opacity: 0.7; }
.common_footer__copy { margin: 32px 0 0; text-align: center; font-size: 12px; letter-spacing: 0.1em; opacity: 0.7; }

/* ---------- 右側固定ボタン（お問い合わせ / 料金 / Instagram） ---------- */
/* common.js が #common_side に is-show を付け外しするが、常時表示のため CSS では is-show に依存しない */
.common_side {
  position: fixed;
  top: 50%;
  right: 0;
  z-index: 90;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
  transform: translateY(-50%);
}
.common_side__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  min-width: 68px;
  color: var(--color-white);
  text-decoration: none;
  box-shadow: -4px 6px 16px rgba(0, 0, 0, 0.22);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.common_side__btn:hover,
.common_side__btn:focus-visible { transform: translateX(-6px); opacity: 0.9; }
.common_side__btn--contact,
.common_side__btn--price {
  padding: 28px 22px;
  border-radius: 14px 0 0 14px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.24em;
  line-height: 1;
  writing-mode: vertical-rl;
}
.common_side__btn--contact { background: var(--color-accent); }
.common_side__btn--price { background: var(--color-brand); }
.common_side__btn--insta {
  padding: 17px;
  border-radius: 14px 0 0 14px;
  background: var(--color-brand-dark);
}
.common_side__icon { display: block; width: 34px; height: 34px; }
@media (max-width: 767px) {
  /* スマホは画面下部に横並びで固定 */
  .common_side {
    inset: auto 0 0 0;
    flex-direction: row;
    gap: 0;
    transform: none;
    padding-bottom: env(safe-area-inset-bottom);
    background: var(--color-brand-dark);
    box-shadow: 0 -4px 14px rgba(0, 0, 0, 0.18);
  }
  .common_side__btn {
    flex: 1 1 0;
    min-width: 0;
    box-shadow: none;
    border-radius: 0;
  }
  .common_side__btn:hover,
  .common_side__btn:focus-visible { transform: none; }
  .common_side__btn--contact,
  .common_side__btn--price {
    padding: 16px 8px;
    border-radius: 0;
    font-size: 15px;
    letter-spacing: 0.1em;
    writing-mode: horizontal-tb;
  }
  .common_side__btn--insta { flex: 0 0 64px; padding: 12px; border-radius: 0; }
  .common_side__icon { width: 26px; height: 26px; }
  /* 下部固定ボタンでフッターが隠れないように */
  body { padding-bottom: 56px; }
}