/* ============================================================
   components.css — ヘッダー / フッター / SPメニュー / SP CTAバー / CTA
   HIDAMARI DENTAL — DELTA アンカー（無彩色プレミアム）
   ============================================================ */

/* ============================================================
   HEADER
   ============================================================ */
.header {
  position: fixed; top: 0; left: 0; width: 100%; height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 clamp(20px, 4vw, 48px); z-index: 100;
  background: transparent;
  transition: background 0.45s var(--ease-out), box-shadow 0.45s var(--ease-out), height 0.45s var(--ease-out), color 0.45s;
  color: var(--ink);
}
.header.is-scrolled {
  background: rgba(245,243,242,0.86);
  -webkit-backdrop-filter: saturate(1.1); /* blur無し：滲み事故回避（§1③） */
  box-shadow: 0 1px 0 var(--line);
  height: 68px;
}
/* ダーク面に重なる時は明色反転（navChange） */
.header.is-on-dark { color: var(--on-dark); }
.header.is-on-dark.is-scrolled { background: rgba(27,27,27,0.78); box-shadow: 0 1px 0 var(--hair-dark); }

/* ロゴ（幾何マーク＋ワードマーク） */
.header__logo { display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0; color: inherit; }
.header__logo-mark { width: 26px; height: 26px; }
.header__logo-mark path, .header__logo-mark line, .header__logo-mark circle { stroke: currentColor; }
.header__logo-text {
  font-family: var(--font-en); font-size: 18px; font-weight: 500;
  letter-spacing: 0.22em; line-height: 1; color: inherit;
}

.header__nav { display: flex; align-items: center; gap: clamp(20px, 2.4vw, 38px); }
.header__nav-link {
  font-family: var(--font-en); font-size: 12px; font-weight: 500; letter-spacing: 0.14em;
  text-transform: uppercase; color: inherit; position: relative; padding-bottom: 5px;
}
.header__nav-link::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 1px;
  background: currentColor; transition: width 0.4s var(--ease-out);
}
.header__nav-link:hover::after { width: 100%; }

.header__right { display: flex; align-items: center; gap: 18px; flex-shrink: 0; }
.header__tel {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-en); font-size: 15px; font-weight: 500; letter-spacing: 0.06em; color: inherit;
}
.header__tel-icon { width: 30px; height: 30px; }
.header__tel-icon path, .header__tel-icon polygon { stroke: currentColor; }

.header__reserve-btn {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--dark); color: var(--on-dark);
  padding: 13px 26px; border-radius: 100px;
  font-family: var(--font-en); font-size: 12px; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase;
  transition: background 0.4s var(--ease-out), transform 0.4s var(--ease-out);
}
.header__reserve-btn:hover { background: var(--dark-2); transform: translateY(-2px); }
.header.is-on-dark .header__reserve-btn { background: var(--on-dark); color: var(--dark); }

/* ハンバーガー */
.header__hamburger {
  display: none; flex-direction: column; justify-content: center; align-items: center;
  width: 44px; height: 44px; position: relative; z-index: 200; color: inherit;
}
.header__hamburger-line { display: block; width: 26px; height: 1.5px; background: currentColor; transition: transform 0.4s var(--ease-out), opacity 0.3s; }
.header__hamburger-line + .header__hamburger-line { margin-top: 7px; }
.header__hamburger.is-open { color: var(--ink); }
.header__hamburger.is-open .header__hamburger-line:nth-child(1) { transform: translateY(8.5px) rotate(45deg); }
.header__hamburger.is-open .header__hamburger-line:nth-child(2) { opacity: 0; }
.header__hamburger.is-open .header__hamburger-line:nth-child(3) { transform: translateY(-8.5px) rotate(-45deg); }

/* SPフルスクリーンメニュー */
.sp-menu-overlay {
  position: fixed; inset: 0; background: var(--bg); z-index: 150;
  display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 30px;
  opacity: 0; pointer-events: none; transition: opacity 0.4s var(--ease-out);
}
.sp-menu-overlay.is-open { opacity: 1; pointer-events: auto; }
.sp-menu-overlay__link {
  font-family: var(--font-en); font-size: 26px; font-weight: 500; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink); text-align: center;
}
.sp-menu-overlay__label { font-family: var(--font-ja); font-size: 12px; letter-spacing: 0.18em; color: var(--ink-3); display: block; margin-top: 6px; }
.sp-menu-overlay__reserve {
  margin-top: 14px; background: var(--dark); color: var(--on-dark);
  padding: 16px 44px; border-radius: 100px; font-family: var(--font-en);
  font-size: 13px; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase;
}

/* ============================================================
   FOOTER（ダーク面 #1B1B1B）
   ============================================================ */
.footer { background: var(--dark); color: var(--on-dark); padding: clamp(90px,11vw,140px) clamp(20px,5vw,48px) 40px; }
.footer__inner { display: grid; grid-template-columns: 1.4fr 1fr 1.3fr; gap: clamp(40px,5vw,72px); max-width: var(--container); margin: 0 auto; }

.footer__brand-logo { display:inline-flex; align-items:center; gap:12px; font-family: var(--font-en); font-size: 22px; font-weight: 500; letter-spacing: 0.2em; color: var(--on-dark); margin-bottom: 10px; }
.footer__brand-logo svg { width: 26px; height: 26px; }
.footer__brand-logo svg path, .footer__brand-logo svg line { stroke: var(--on-dark); }
.footer__brand-sub { font-family: var(--font-en); font-size: 10px; letter-spacing: 0.18em; color: var(--on-dark-3); margin-bottom: 26px; text-transform: uppercase; }
.footer__info-item { font-size: 13px; line-height: 1.9; letter-spacing: 0.04em; color: var(--on-dark-2); }
.footer__info-item + .footer__info-item { margin-top: 4px; }

.footer__nav-title { font-family: var(--font-en); font-size: 11px; letter-spacing: 0.18em; color: var(--on-dark-3); margin-bottom: 18px; text-transform: uppercase; }
.footer__nav-list { display: flex; flex-direction: column; gap: 12px; }
.footer__nav-link { font-size: 13px; letter-spacing: 0.04em; color: var(--on-dark-2); transition: color 0.3s; }
.footer__nav-link:hover { color: var(--on-dark); }

.footer__schedule-table { width: 100%; font-size: 12px; margin-bottom: 18px; }
.footer__schedule-table th, .footer__schedule-table td { padding: 7px 6px; text-align: center; border-bottom: 1px solid var(--hair-dark); }
.footer__schedule-table th { color: var(--on-dark-3); font-weight: 500; }
.footer__schedule-table td { color: var(--on-dark-2); }
.footer__schedule-table .closed { color: var(--on-dark-3); }
.footer__schedule-note { font-size: 11px; color: var(--on-dark-3); margin-top: 8px; letter-spacing: 0.03em; }

.footer__sns { display: flex; gap: 14px; margin-top: 22px; }
.footer__sns-link {
  display: flex; align-items: center; justify-content: center; width: 40px; height: 40px;
  border: 1px solid var(--hair-dark); border-radius: 50%; color: var(--on-dark-2);
  transition: background 0.35s var(--ease-out), color 0.35s, border-color 0.35s;
}
.footer__sns-link:hover { background: var(--on-dark); color: var(--dark); border-color: var(--on-dark); }
.footer__sns-icon { width: 17px; height: 17px; }

.footer__bottom { margin-top: clamp(48px,6vw,72px); padding-top: 24px; border-top: 1px solid var(--hair-dark); text-align: center; }
.footer__copyright { font-family: var(--font-en); font-size: 11px; color: var(--on-dark-3); letter-spacing: 0.14em; }

/* ============================================================
   PAGE HEAD（下層ページ共通の見出し：巨大英字＋和文＋パンくず）
   ============================================================ */
.page-head { padding-top: calc(var(--header-h) + clamp(64px, 9vw, 120px)); padding-bottom: clamp(48px, 6vw, 80px); border-bottom: 1px solid var(--line); }
.page-head__inner { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.page-head__en { font-family: var(--font-en); font-weight: 500; font-size: clamp(48px, 9vw, 116px); line-height: 1; letter-spacing: 0.01em; text-transform: uppercase; color: var(--ink); }
.page-head__jp { display: block; margin-top: 20px; font-size: 14px; font-weight: 500; letter-spacing: 0.18em; color: var(--ink-2); }
.breadcrumb { display: flex; align-items: center; gap: 10px; margin-bottom: 30px; font-family: var(--font-en); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }
.breadcrumb a { color: var(--ink-3); transition: color 0.3s; }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb span { color: var(--grey); }

/* ============================================================
   SP固定CTAバー
   ============================================================ */
.sp-cta-bar { display: none; }
@media (max-width: 767px) {
  .sp-cta-bar {
    display: flex; position: fixed; bottom: 0; left: 0; width: 100%; height: 60px;
    box-sizing: content-box; padding-bottom: env(safe-area-inset-bottom);
    background: var(--dark); z-index: 1000; border-top: 1px solid var(--hair-dark);
  }
  .sp-cta-bar__btn {
    flex: 1; display: flex; align-items: center; justify-content: center; gap: 8px;
    font-family: var(--font-en); font-size: 12px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--on-dark);
  }
  .sp-cta-bar__btn--tel { border-right: 1px solid var(--hair-dark); }
  .sp-cta-bar__btn--reserve { background: var(--on-dark); color: var(--dark); }
  .sp-cta-bar__icon { width: 18px; height: 18px; }
}

/* ============================================================
   CTA共通ブロック（写真＋ダークオーバーレイ・無彩色）
   ============================================================ */
.cta-block { position: relative; width: 100%; padding: clamp(96px,12vw,170px) var(--gutter); text-align: center; overflow: hidden; color: var(--on-dark); }
.cta-block__bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: grayscale(0.2); }
.cta-block__overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(17,17,17,0.55), rgba(17,17,17,0.72)); }
.cta-block__content { position: relative; z-index: 2; max-width: 760px; margin: 0 auto; }
.cta-block__en { font-family: var(--font-en); font-size: clamp(40px,7vw,86px); font-weight: 500; letter-spacing: 0.02em; line-height: 1; text-transform: uppercase; margin-bottom: 24px; }
.cta-block__heading { font-family: var(--font-ja); font-size: clamp(20px,2.6vw,26px); font-weight: 500; letter-spacing: 0.06em; margin-bottom: 14px; }
.cta-block__sub { font-size: 14px; letter-spacing: 0.05em; color: var(--on-dark-2); margin-bottom: 40px; }
.cta-block__buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-block .btn--outline { color: var(--on-dark); border-color: var(--on-dark-2); }
.cta-block .btn--outline:hover { background: var(--on-dark); color: var(--dark); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1023px) {
  .header__nav, .header__right { display: none; }
  .header__hamburger { display: flex; }
}
@media (max-width: 767px) {
  .header { height: var(--header-h-sp); }
  .header.is-scrolled { height: 56px; }
  .footer { padding-left: 7%; padding-right: 7%; }
  .footer__inner { grid-template-columns: 1fr; gap: 36px; }
  .cta-block__buttons { flex-direction: column; align-items: center; }
  .cta-block__buttons .btn { width: 100%; max-width: 320px; justify-content: center; }
}
@media (min-width: 768px) and (max-width: 1023px) {
  .footer__inner { grid-template-columns: 1fr 1fr; }
}