/* ============================================================
   JFP — Japan Fig Platform  /  style.css
   ============================================================ */

/* ── リセット & ルート変数 ─────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* 修正①：背景を一段階明るく（元 #2b0e09 → #3d1610） */
  --bg:          #3d1610;
  --bg-nav:      #2a0c08;
  --fg:          #ede0d0;
  /* 修正④：下部ナビテキストを一段階白く（元 #8a5c4a → #b8896e） */
  --fg-dim:      #b8896e;
  --fg-nav:      #c8a88a;
  --line:        rgba(237,224,208,0.15);
  --accent:      #c49a82;

  /* フォント：ゴシック系（参考画像に合わせてInterに統一） */
  --font-display: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-body:    'Noto Sans JP', sans-serif;
  --font-ui:      'Inter', 'Helvetica Neue', Arial, sans-serif;

  --header-h:    76px;
  --bottom-h:    76px;
}

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 300;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ============================================================
   HEADER（全ページ共通）
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  background: transparent;
}

/* ── ロゴ ── */
.logo {
  display: flex;
  flex-direction: column;
  gap: 3px;
  text-decoration: none;
  line-height: 1;
}

/* ── ロゴ：Interゴシック、シンプルに ── */
.logo-main {
  font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  font-weight: 200;
  font-size: 18px;
  letter-spacing: 0.28em;
  color: var(--fg);
}

.logo-sub {
  font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  font-weight: 200;
  font-size: 7.5px;
  letter-spacing: 0.28em;
  color: var(--fg-dim);
  text-transform: uppercase;
}

/* ── ハンバーガーボタン ── */
.hamburger {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 210;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 1px;
  background: var(--fg);
  transition: opacity 0.2s, transform 0.3s;
  transform-origin: center;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── ドロップダウンメニュー ── */
.dropdown-nav {
  position: absolute;
  top: calc(var(--header-h) - 8px);
  right: 48px;
  background: var(--bg-nav);
  border: 1px solid var(--line);
  min-width: 200px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.dropdown-nav.open {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.dropdown-nav ul { list-style: none; }

.dropdown-nav li { border-bottom: 1px solid var(--line); }
.dropdown-nav li:last-child { border-bottom: none; }

.dropdown-nav a {
  display: block;
  padding: 16px 28px;
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--fg-nav);
  text-decoration: none;
  transition: color 0.2s, background 0.2s;
}

.dropdown-nav a:hover {
  color: var(--fg);
  background: rgba(255,255,255,0.05);
}

/* ============================================================
   TOP PAGE — MAIN LAYOUT
   ============================================================ */
.main-layout {
  display: grid;
  grid-template-columns: 500px 1fr;
  min-height: 100vh;
  padding-top: var(--header-h);
  padding-bottom: var(--bottom-h);
}

.content-col {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 43px 48px 43px 48px;
  position: relative;
  z-index: 2;
}

/* ①hero-title：Josefin Sansに変更 */
.hero-title {
  font-family: 'Josefin Sans', 'Helvetica Neue', Arial, sans-serif;
  font-weight: 200;
  font-size: clamp(48px, 5.5vw, 76px);
  letter-spacing: 0.20em;
  line-height: 1.22;
  color: var(--fg);
  margin-bottom: 48px;
}

/* ── お知らせリスト ── */
.news-list { list-style: none; }

.news-item {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.news-item:last-child { border-bottom: 1px solid var(--line); }

.news-date {
  font-family: 'EB Garamond', serif;
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--fg-dim);
}

.news-text {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--fg);
}

/* ── 右カラム（いちじく画像）：通常フロー配置に戻す ── */
.image-col {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-bottom: var(--bottom-h);
}

/* fig-image：透過配置 */
.fig-image {
  width: clamp(280px, 38vw, 540px);
  height: auto;
  display: block;
  mask-image: radial-gradient(ellipse 90% 90% at 48% 52%, black 35%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 90% at 48% 52%, black 35%, transparent 100%);
  opacity: 0.40;
}

/* ============================================================
   INNER PAGES — 共通レイアウト
   ============================================================ */
.page-main {
  min-height: 100vh;
  padding-top: var(--header-h);
  padding-bottom: var(--bottom-h);
  display: flex;
  align-items: center;
}

.page-inner {
  padding: 60px 48px;
  max-width: 720px;
}

.page-eyebrow {
  font-family: 'EB Garamond', serif;
  font-size: 11px;
  letter-spacing: 0.30em;
  color: var(--fg-dim);
  text-transform: uppercase;
  margin-bottom: 24px;
}

.page-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(30px, 4vw, 52px);
  letter-spacing: 0.12em;
  line-height: 1.3;
  color: var(--fg);
  margin-bottom: 32px;
}

.page-divider {
  width: 40px;
  height: 1px;
  background: var(--accent);
  margin: 36px 0;
}

.page-body {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 14px;
  line-height: 2.1;
  letter-spacing: 0.07em;
  color: var(--fg);
}

/* ── 団体概要メンバーリスト ── */
.member-list {
  margin-top: 48px;
  display: flex;
  flex-direction: column;
}

.member-item {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  align-items: baseline;
}

.member-item:last-child { border-bottom: 1px solid var(--line); }

.member-role {
  font-family: 'EB Garamond', serif;
  font-size: 11px;
  letter-spacing: 0.20em;
  color: var(--fg-dim);
  text-transform: uppercase;
}

.member-name {
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.10em;
  color: var(--fg);
}

/* ── コンテンツページ ── */
.contents-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 40px;
  max-width: 480px;
}

.contents-btn {
  background: none;
  border: none;
  border-top: 1px solid var(--line);
  color: var(--fg-dim);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 14px;
  letter-spacing: 0.12em;
  padding: 20px 0;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s, padding-left 0.2s;
}

.contents-btn:last-child { border-bottom: 1px solid var(--line); }

.contents-btn:hover {
  color: var(--fg);
  padding-left: 8px;
}

/* ── Coming Soon ポップアップ ── */
.popup-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(10, 3, 2, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}

.popup-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.popup-box {
  background: var(--bg-nav);
  border: 1px solid var(--line);
  padding: 56px 64px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.popup-text {
  font-family: 'EB Garamond', serif;
  font-size: 36px;
  letter-spacing: 0.18em;
  color: var(--fg);
}

.popup-sub {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--fg-dim);
}

.popup-close {
  margin-top: 16px;
  background: none;
  border: 1px solid var(--line);
  color: var(--fg-dim);
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.18em;
  padding: 10px 28px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}

.popup-close:hover { color: var(--fg); border-color: var(--fg); }

/* ── お問合せフォーム ── */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: 520px;
  margin-top: 40px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-family: 'EB Garamond', serif;
  font-size: 10px;
  letter-spacing: 0.24em;
  color: var(--fg-dim);
  text-transform: uppercase;
}

.form-group input,
.form-group textarea {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 14px;
  padding: 12px 0;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}

.form-group input:focus,
.form-group textarea:focus { border-bottom-color: var(--accent); }

.form-group textarea { resize: vertical; min-height: 120px; }

.submit-btn {
  align-self: flex-start;
  background: none;
  border: 1px solid var(--fg-dim);
  color: var(--fg);
  font-family: 'EB Garamond', serif;
  font-size: 13px;
  letter-spacing: 0.22em;
  padding: 14px 40px;
  cursor: pointer;
  transition: border-color 0.2s;
}

.submit-btn:hover { border-color: var(--fg); }

/* ============================================================
   BOTTOM NAV（全ページ共通）
   ============================================================ */
.bottom-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 200;
  height: var(--bottom-h);
  display: flex;
  /* 修正④：初期色を一段階白く */
  background: rgba(30, 10, 6, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--line);
}

.nav-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  text-decoration: none;
  border-right: 1px solid var(--line);
  transition: background 0.2s;
  padding: 0 8px;
  cursor: pointer;
}

.nav-btn:last-child { border-right: none; }

.nav-btn:hover,
.nav-btn.nav-active {
  background: rgba(255,255,255,0.06);
}

.nav-btn:hover .nav-ja,
.nav-btn:hover .nav-en,
.nav-btn.nav-active .nav-ja,
.nav-btn.nav-active .nav-en {
  color: var(--fg);
}

.nav-ja {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 12px;
  letter-spacing: 0.10em;
  /* 修正④：一段階白く */
  color: #c8a48a;
  transition: color 0.2s;
  text-align: center;
  white-space: nowrap;
}

.nav-en {
  font-family: 'EB Garamond', serif;
  font-size: 9px;
  letter-spacing: 0.20em;
  /* 修正④：一段階白く */
  color: #a07858;
  transition: color 0.2s;
  text-align: center;
  white-space: nowrap;
}

/* ============================================================
   MOBILE (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --header-h: 64px;
    --bottom-h: 68px;
  }

  .site-header { padding: 0 24px; }
  .dropdown-nav { right: 24px; }

  .main-layout {
    grid-template-columns: 1fr;
    position: relative;
  }

  /* モバイル：テキストを前面に、画像は背景として全体に敷く */
  .content-col {
    padding: 40px 24px 32px;
    position: relative;
    z-index: 2;
  }

  .image-col {
    /* 画像カラムを絶対配置で背景化 */
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    pointer-events: none;
    z-index: 1;
    padding: 0;
  }

  .fig-image {
    width: 85vw;
    max-width: 420px;
    opacity: 0.22;          /* 薄く透過 */
    mask-image: none;
    -webkit-mask-image: none;
    filter: none;
  }

  .hero-title {
    font-size: clamp(42px, 13vw, 62px);
    margin-bottom: 36px;
  }

  .page-inner { padding: 40px 24px; }

  .member-item {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .nav-ja { font-size: 10px; }
  .nav-en { font-size: 7.5px; }

  .popup-box { padding: 40px 28px; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .hamburger span,
  .dropdown-nav,
  .popup-overlay { transition: none; }
}