/* =========================================================
   hotel Giraffe Nakasu - style.css (Header / Footer)
   ========================================================= */

/* ---------------------------------------------------------
   Header
   --------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.hamburger {
  width: 36px;
  height: 17px;
  position: relative;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  padding-left: 10px;
}
.hamburger::before {
  content: "";
  position: absolute;
  top: -16px;
  right: -4px;
  bottom: -16px;
  left: -4px;
}
.hamburger span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: var(--color-gold);
  transition: transform .25s ease, opacity .25s ease, top .25s ease;
}
.hamburger span:nth-child(1) { top: 0; }
.hamburger span:nth-child(2) { top: 8px; }
.hamburger span:nth-child(3) { top: 16px; }
.hamburger.is-active span:nth-child(1) { top: 8px; transform: rotate(45deg); }
.hamburger.is-active span:nth-child(2) { opacity: 0; }
.hamburger.is-active span:nth-child(3) { top: 8px; transform: rotate(-45deg); }

.logo {
  width: 200px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-serif);
  font-size: 20px;
  letter-spacing: .06em;
  color: var(--color-gold);
  white-space: nowrap;
}
.logo img {
  width: 100%;
}

.main-nav {
  margin-left: 12px;
  display: none;
}
.main-nav ul { display: flex; gap: 28px; }
.main-nav a {
  font-size: 13px;
  letter-spacing: .08em;
  color: #111;
  position: relative;
  padding-bottom: 4px;
}
.main-nav a.is-current::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--color-gold);
}

.header-cta {
  margin-left: auto;
  display: none;
  gap: 10px;
}
.header-cta .btn { 
  display: block;
  width: 160px; 
  padding: 12px 0; 
  font-size: 16px;
  text-align: center;
  line-height: 1;
}
.header-cta .btn span {
  font-size: 10px;
}

@media (min-width: 1024px) {
  .main-nav { display: block; }
  .header-cta { display: flex; }
}

@media (max-width: 768px) {
  .site-header {
    height: 50px;
  }
  header .logo { display: none; }
  .header-cta {
    display: flex;
    flex: 1;
    margin-left: 0;
    gap: 0;
  }
  .header-cta .btn {
    flex: 1;
    width: 100px;
    height: 50px;
    padding: 12px 10px;
    font-size: 13px;
  }
  .header-cta .btn span {
    font-size: 9px;
  }
  .header-inner {
    padding: 0;
    padding-left: 0;
    gap: 0;
  }
  /* ボタンを除いた左側スペース内で中央寄せ */
  .hamburger {
    margin: 0 14px;
  }
}

/* mobile full-screen nav overlay */
.mobile-nav {
  position: fixed;
  inset: 0;
  padding-top: 90px;
  background: rgba(255, 255, 255, 0.97);
  color: var(--color-navy);
  z-index: 900;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform .35s ease, opacity .35s ease, visibility .35s;
}
.mobile-nav.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}
.mobile-nav .container {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.mobile-nav-label {
  display: block;
  text-align: center;
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: .3em;
  color: var(--color-gold);
  padding-bottom: 16px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--color-border);
}
.mobile-nav-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px 24px;
}
.mobile-nav-links li {
  margin-bottom: 22px;
}
.mobile-nav-links li a {
  font-family: var(--font-serif);
  font-size: 19px;
  letter-spacing: .06em;
  color: var(--color-navy);
}
.mobile-nav-links li a.is-current {
  color: var(--color-gold);
}

/* 768px未満: 統一シンプルメニュー / 768px以上: ページ内リンクのグループメニュー */
.mobile-nav-links--full {
  display: none;
}
@media (min-width: 768px) {
  .mobile-nav-links--simple {
    display: none;
  }
  .mobile-nav-links--full {
    display: block;
  }
}
.mobile-nav-links--full ul {
  margin-bottom: 40px;
}
.mobile-nav-links--full li {
  margin-bottom: 15px;
}
.mobile-nav-links--full li.ttl {
  font-family: var(--font-serif);
  font-size: 28px;
  color: var(--color-gold);
}
.mobile-nav-links--full li a {
  font-family: var(--font-serif);
  color: var(--color-navy);
  font-size: 15px;
}

/* ---------------------------------------------------------
   Footer
   --------------------------------------------------------- */
.site-footer { background: #fff; color: var(--color-gold); }
.footer-top { padding: 60px 0 40px; text-align: center; }
.footer-top .logo { justify-content: center; margin: 0 auto 30px; color: var(--color-text-invert); margin-bottom: 18px; width: 500px; }
.footer-top .address { font-size: 18.5px; color: var(--color-gold); margin-bottom: 26px; }
.footer-nav ul { display: flex; justify-content: center; gap: 22px; flex-wrap: wrap; font-size: 18px; color: var(--color-gold); }
.footer-bottom { background: var(--color-gold); text-align: center; padding: 14px 0; font-size: 13px; color: #fff; letter-spacing: .04em; }

@media (max-width: 768px) {
  .footer-top .logo {
    width: 100%;
  }
  footer .logo img {
    width: 100%;
  }
  .footer-top .address {
    font-size: 14px;
    margin-bottom: 55px;
  }
  .footer-nav ul {
    width: 60%;
    margin: 0 auto;
    font-size: 14px;
  }
}