/* ============================================================
   header.css — サイトヘッダー・ハンバーガー・SPナビ・FV
============================================================ */
/* ---- サイトヘッダー ---- */
.site-header {
  position: relative;
  z-index: 100;
  background-color: var(--color-bg-warm);
}

/* ---- ロゴ：デフォルトはヘッダー内に収まる（全ページ共通） ---- */
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--site-max);
  margin-inline: auto;
  padding-inline: 4%;
  height: var(--header-height);
  gap: var(--space-sm);
  position: relative;
}

.site-header__logo {
  position: static;
  z-index: 10;
}

.site-header__logo-img {
  width: auto;
  height: calc(var(--header-height) - 16px);
  object-fit: contain;
}

/* ---- トップページのみ：ロゴを大きくFVにはみ出す ---- */
.home .site-header__inner {
  justify-content: flex-end;
}

.home .site-header__logo {
  position: absolute;
  top: 1cqw;
  left: 4%;
}

.home .site-header__logo-img {
  height: max(88px, 10cqw);
  filter: drop-shadow(0 2px 8px rgba(61,43,26,0.15));
}

/* ---- PC ナビ ---- */
.site-header__nav {
  @container site (width < 1024px) { display: none; }
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.4cqw;

  & a {
    font-size: 0.85em;
    font-weight: 500;
    color: var(--color-text);
    padding: 0.3em 0.9em;
    border-radius: var(--radius-pill);
    transition: background-color var(--transition-fast), color var(--transition-fast);

    &:hover {
      background-color: var(--color-primary-light);
      color: var(--color-primary-dark);
    }
  }
}

/* ---- ハンバーガー ---- */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: max(32px, 2.5cqw);
  height: max(32px, 2.5cqw);
  border-radius: var(--radius-sm);
  background-color: var(--color-primary);
  flex-shrink: 0;
  transition: background-color var(--transition-fast);

  &:hover { background-color: var(--color-primary-dark); }

  @container site (width < 1024px) { display: flex; }
}

.hamburger__line {
  display: block;
  width: 55%;
  height: 2px;
  background-color: #fff;
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
  transform-origin: center;
}

.hamburger.is-active .hamburger__line:nth-child(1) { transform: translateY(7px) rotate(45deg); }

.hamburger.is-active .hamburger__line:nth-child(2) { opacity: 0; transform: scaleX(0); }

.hamburger.is-active .hamburger__line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- オーバーレイ ---- */
.sp-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(61,43,26,0.45);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
  z-index: 150;

  &.is-active { opacity: 1; visibility: visible; }
}

/* ---- SP ナビ ---- */
.sp-nav {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(80%, 300px);
  height: 100%;
  background-color: var(--color-bg-warm);
  padding: 5em 6% var(--space-lg);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  z-index: 200;
  overflow-y: auto;

  &:not([hidden]) { transform: translateX(0); }

  &[hidden] {
    display: block;
    transform: translateX(100%);
    visibility: hidden;
  }
}

.sp-nav__close {
  position: absolute;
  top: 1em;
  right: 1em;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-size: 1.25em;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast);

  &:hover { background: var(--color-primary); color: #fff; }
}

.sp-nav__list {
  display: flex;
  flex-direction: column;

  & li { border-bottom: 1px solid var(--color-border); }

  & a {
    display: block;
    padding: 0.9em 0.5em;
    font-size: 0.8em;
    font-weight: 500;
    color: var(--color-text);
    transition: color var(--transition-fast), padding-left var(--transition-fast);

    &:hover { color: var(--color-primary-dark); padding-left: 0.75em; }
  }
}

body.nav-open { overflow: hidden; }

/* ============================================================
   FV（ファーストビュー）
============================================================ */
.fv {
  position: relative;
  width: 100%;
  height: 45cqw;
  max-height: 840px;
  background-color: var(--color-text);

  @media (width < 768px) {
    height: 40dvh;
    max-height: none;
  }
}

.fv__bg {
  position: absolute;
  inset: 0;
}

.fv__bg-img {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1s ease;

  &.is-active { opacity: 1; }
}

.fv__overlay {
  position: absolute;
  inset: 0;
}

.fv__catch {
  position: relative;
  z-index: 10;
  height: 100%;
  display: flex;
  align-items: center;
  padding-inline: 4%;

  @container site (width < 768px) {
    padding: 3%;
  }
}

.fv__catch-inner {
  max-width: 50%;
  padding: 1.5cqw 2cqw 2cqw;
  background-color: rgba(61, 43, 26, 0.3);

  @media (width < 768px) {
    display: flex;
    flex-direction: column;
    max-width: 100%;
    padding: 3%;
  }
}

.fv__title {
  font-family: var(--font-accent);
  font-size: 3cqw;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 2cqw;
  text-shadow:
    0 1px 2px rgba(0,0,0,0.8),
    0 2px 8px rgba(0,0,0,0.6),
    0 6px 24px rgba(0,0,0,0.4);
  letter-spacing: 0.05em;
  rotate: -3deg;

  @media (width < 768px) {
    font-size: max(24px, 4cqw);
    margin-bottom: 1em;
  }
}

.fv__subtitle {
  font-size: 1.8cqw;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.5;
  text-shadow:
    0 1px 2px rgba(0,0,0,0.8),
    0 2px 8px rgba(0,0,0,0.5);

  @media (width < 768px) {
    font-size: max(12px, 2cqw);
  }
}

.fv__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: 1em;
  color: var(--color-text);
  background-color: var(--color-primary-light);
  box-shadow: 0 4px 20px rgba(0,0,0,0.25);
  margin-top: var(--space-md);
  padding: 0.75cqw 1cqw;
  width: 50%;
  justify-content: center;
  border-radius: var(--radius-pill);
  transition: background-color var(--transition-fast), transform var(--transition-fast);

  &:hover { background-color: var(--color-primary); transform: translateY(-1px); }

  & svg {
    width: 1.2em;
    height: 1.2em;
    flex-shrink: 0;
  }

  @media (width < 768px) {
    font-size: max(12px, 0.85em);
    width: 14em;
  }
}