/* ==============================
   Site Header
   Sticky top global nav (Figma: 858-5022)
   角丸なし・左右いっぱいの白バー
   ============================== */

.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--color-white);
}

/* オーバーレイより前面の白レイヤー＝ヘッダー全体を暗くしない */
.site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-white);
  z-index: 85;
  pointer-events: none;
}

/* Inner container — 角丸なし */
.site-header__inner {
  position: relative;
  z-index: 90; /* ドロワー(85)より前面＝閉じるボタンが常に押せる＆白を維持 */
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin-inline: auto;
  padding: 8px 16px;
  background: var(--color-white);
  gap: var(--space-2);
}

@media (min-width: 768px) {
  .site-header__inner {
    padding: 16px 32px;
  }
}


/* ==============================
   Logo (Figma: I858:5022;858:4462 — h=70px, gap=4px)
   ============================== */
.site-header__logo {
  display: flex;
  align-items: center;
  gap: 4px;
  text-decoration: none;
  flex-shrink: 0;
}

.site-header__logo-icon {
  height: 36px;
  width: auto;
  object-fit: contain;
}

@media (min-width: 768px) {
  .site-header__logo-icon {
    height: 70px;
  }
}

/* Logo text: hidden on SP, visible on PC */
.site-header__logo-text {
  font-family: var(--font-display);
  font-weight: 900;
  color: var(--color-primary);
  font-size: 16px;
  line-height: normal;
  display: none;
}

@media (min-width: 768px) {
  .site-header__logo-text {
    display: block;
    font-size: 24px;
  }
}


/* ==============================
   PC Navigation (Figma: I858:5022;858:4465 — gap=16px)
   Visible from 1024px
   ============================== */
.site-header__nav {
  display: none;
  flex: 1;
  margin-inline: 16px;
}

@media (min-width: 1024px) {
  .site-header__nav {
    display: flex;
  }
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* NavLink (Figma: 856:8479 — font-bold 16px #4b4b4b) */
.nav-item {
  font-family: var(--font-base);
  font-weight: 700;
  font-size: 16px;
  color: var(--color-text);
  white-space: nowrap;
  transition: color 0.2s;
}

.nav-item:hover {
  color: var(--color-primary);
}


/* ==============================
   Actions: CTA buttons + menu toggle
   ============================== */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

/* CTA buttons: hidden on SP, visible on PC */
.site-header__cta-btn {
  display: none;
}

@media (min-width: 768px) {
  .site-header__cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 16px;
    padding: 8px 24px;
    white-space: nowrap;
  }
}

/* Button arrow icon */
.btn__chevron {
  width: auto;
  height: 8px;
  transform: rotate(90deg);
  flex-shrink: 0;
}

/* SP: show primary & secondary CTA buttons */
@media (max-width: 767px) {
  .site-header__actions .btn-primary,
  .site-header__actions .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    padding: 6px 14px;
  }
}


/* ==============================
   Menu Toggle Button
   (Figma: 857:8985 — size=40px, border teal, circle)
   ============================== */
.site-header__menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  border: 2px solid var(--color-secondary);
  background: var(--color-white);
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.2s, border-color 0.2s;
}

/* SP: make outer circle (button) smaller than PC */
@media (max-width: 767px) {
  .site-header__menu-toggle {
    width: 30px;
    height: 30px;
  }
}

/* Hamburger icon: visible by default; lines = secondary (teal) */
.menu-toggle__icon {
  display: block;
  flex-shrink: 0;
}

/* Only recolor rects for PC 3-line icon */
.menu-toggle__icon--open-pc rect {
  fill: var(--color-secondary);
}

/* Default: PC shows 3-line icon, SP circle+triangle */
.menu-toggle__icon--open-sp {
  display: none;
}

@media (max-width: 767px) {
  .menu-toggle__icon--open-pc {
    display: none;
  }
  .menu-toggle__icon--open-sp {
    display: block;
  }
}

.menu-toggle__icon--close {
  display: none;
}

/* Open state: teal background, swap icons */
.site-header.is-open .site-header__menu-toggle {
  background: var(--color-white);
  border-color: var(--color-secondary);
}

.site-header.is-open .menu-toggle__icon--open {
  display: none;
}

.site-header.is-open .menu-toggle__icon--close {
  display: block;
}

/* Close icon size on SP: fit in 30px button */
@media (max-width: 767px) {
  .menu-toggle__icon--close {
    width: 24px;
    height: 24px;
  }
}


/* ==============================
   Drawer Navigation
   SP: full-screen slide-down panel
   PC: inline expansion below header bar
   開いたエリアはオーバーレイより前面で白を維持
   ============================== */
.nav-drawer {
  background: var(--color-white);
  overflow: hidden;
  pointer-events: none;
}

/* SP */
@media (max-width: 767px) {
  .nav-drawer {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 100dvh;
    padding-top: 68px;
    overflow-y: auto;
    z-index: 85; /* オーバーレイ(80)より前面＝ぱかっと開くところも明るく */
    transform: translateY(-100%);
    transition: transform 0.35s ease;
    max-height: none;
    background-color: #fff; /* 全面はっきり白 */
  }

  .nav-drawer.is-open {
    transform: translateY(0);
    pointer-events: auto;
  }
}

/* PC: inline expansion */
@media (min-width: 768px) {
  .nav-drawer {
    position: relative;
    z-index: 85; /* オーバーレイ(80)より前面＝開いた部分もアクティブに */
    max-height: 0;
    transition: max-height 0.35s ease;
    background-color: #fff;
  }

  .nav-drawer.is-open {
    max-height: 600px;
    pointer-events: auto;
  }
}

.nav-drawer__inner {
  padding: var(--space-4) 16px var(--space-6);
}

@media (min-width: 768px) {
  .nav-drawer__inner {
    max-width: 1280px;
    margin-inline: auto;
    padding: var(--space-6) 32px;
  }

  .nav-drawer__inner nav {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-6);
  }
}

.nav-drawer__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .nav-drawer__list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-5);
  }
}

.nav-drawer__item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-base);
  font-weight: 700;
  font-size: 16px;
  color: var(--color-text);
  padding: 4px 0;
}

.nav-drawer__item--child {
  font-weight: 500;
  font-size: 14px;
}

.nav-drawer__sub {
  padding-left: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.nav-drawer__sns {
  display: flex;
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-4) 0;
  margin-top: var(--space-5);
  border-top: 1px solid var(--color-placeholder);
}

@media (min-width: 768px) {
  .nav-drawer__sns {
    margin-top: 0;
    padding-top: 0;
    padding-bottom: var(--space-2);
    border-top: none;
    margin-left: auto;
    align-self: flex-end;
  }
}

.nav-drawer__sns a {
  display: block;
  width: 32px;
  height: 32px;
}

.nav-drawer__sns img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}


/* ==============================
   Overlay
   ============================== */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 80;
}

.nav-overlay.is-open {
  display: block;
}