.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  width: 100%;
  border-bottom: 1px solid rgba(184, 160, 126, 0.3);
  background: rgba(5, 5, 5, 0.76);
  backdrop-filter: blur(6px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 20px;
  /* min-height: var(--header-height); */
  padding: 0 20px;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  margin-right: auto;
  padding: 6px 12px 6px 4px;
  text-decoration: none;
  white-space: nowrap;
}

.site-header__logo {
  display: block;
  width: auto;
  height: 70px;
}

.site-header__nav ul {
  display: flex;
  align-items: center;
  gap: 22px;
}

.site-header__nav a {
  display: inline-block;
  color: var(--color-pure-white);
  font-size: 14px;
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  white-space: nowrap;
}

.site-header__reserve {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 8px;
  border: 1px solid rgba(201, 184, 154, 0.95);
  background: rgba(184, 160, 126, 0.95);
  color: var(--color-brown-dark);
  font-size: 13px;
  font-weight: var(--font-weight-semi-bold);
  text-decoration: none;
  white-space: nowrap;
  box-shadow: 0 2px 14px rgba(184, 160, 126, 0.4);
  transition:
    background-color 0.25s ease,
    color 0.25s ease,
    border-color 0.25s ease,
    box-shadow 0.25s ease,
    transform 0.2s ease;
}

.site-header__reserve:hover {
  background: rgb(201, 184, 154);
  border-color: rgb(210, 195, 170);
  color: var(--color-black);
  box-shadow: 0 4px 20px rgba(184, 160, 126, 0.55);
  transform: translateY(-1px);
}

.site-header__reserve:focus-visible {
  outline: 2px solid var(--color-pure-white);
  outline-offset: 3px;
}

.site-header__menu-button {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  border-radius: var(--border-radius);
  background: transparent;
  cursor: pointer;
}

.site-header__menu-button span {
  display: block;
  width: 18px;
  height: 1px;
  margin: 0 auto;
  background: var(--color-pure-white);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.site-header__menu-button.is-active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.site-header__menu-button.is-active span:nth-child(2) {
  opacity: 0;
}

.site-header__menu-button.is-active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  justify-content: flex-end;
  background: rgba(5, 5, 5, 0.5);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.menu-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.menu-overlay__panel {
  width: min(92vw, 430px);
  height: 100%;
  padding: 22px 26px 34px;
  background:
    radial-gradient(circle at 70% 20%, rgba(184, 160, 126, 0.14) 0%, rgba(184, 160, 126, 0) 48%),
    linear-gradient(180deg, rgba(26, 22, 18, 0.98) 0%, rgba(5, 5, 5, 0.98) 100%);
  border-left: 1px solid rgba(184, 160, 126, 0.35);
  transform: translateX(100%);
  transition: transform 0.4s ease;
}

.menu-overlay.active .menu-overlay__panel {
  transform: translateX(0);
}

.menu-overlay__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 26px;
}

.menu-overlay__eyebrow {
  margin: 0;
  color: var(--color-beige);
  font-family: var(--font-family-cormorant);
  font-size: 30px;
}

.menu-overlay__close {
  border: 0;
  background: transparent;
  color: var(--color-pure-white);
  font-size: 11px;
  cursor: pointer;
}

.menu-overlay__nav ul {
  border-top: 1px solid rgba(184, 160, 126, 0.35);
}

.menu-overlay__nav li {
  border-bottom: 1px solid rgba(184, 160, 126, 0.2);
}

.menu-overlay__nav a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 0;
  color: var(--color-pure-white);
  text-decoration: none;
  font-size: 14px;
}

.menu-overlay__nav a span {
  color: var(--color-beige);
  font-family: var(--font-family-cormorant);
  font-size: 16px;
}

.menu-overlay__reserve {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 46px;
  margin-top: 28px;
  border: 1px solid var(--color-beige);
  border-radius: var(--border-radius);
  color: var(--color-pure-white);
  text-decoration: none;
  font-size: 13px;
}

body.menu-open {
  overflow: hidden;
}

@media (max-width: 1200px) {
  .site-header__nav {
    display: none;
  }

  .site-header__menu-button {
    display: inline-flex;
  }
}

@media (max-width: 767px) {
  .site-header__brand {
    max-width: min(52vw, 240px);
  }

  .site-header__reserve {
    min-height: 42px;
    padding: 0 16px;
    font-size: 12px;
    border-radius: 6px;
    box-shadow: 0 2px 10px rgba(184, 160, 126, 0.35);
  }

  .site-header__reserve:hover {
    transform: none;
  }

  .menu-overlay__panel {
    width: 100%;
    padding: 18px 16px 24px;
  }

  .menu-overlay__eyebrow {
    font-size: 24px;
  }

  .menu-overlay__nav a {
    padding: 13px 0;
    font-size: 13px;
  }

  .site-header__logo {
    height: 50px;
  }
  
}

/* 340〜360px付近：ロゴ幅を抑えてお問い合わせを1行に収める */
@media (max-width: 360px) {
  .site-header__inner {
    padding: 0 10px;
    gap: 8px;
  }

  .site-header__brand {
    max-width: min(42vw, 148px);
  }

  .site-header__reserve {
    flex-shrink: 0;
    padding: 0 8px;
    font-size: 11px;
  }
}