/*
Theme Name: KEW Topics
Theme URI: https://www.entaworks.co.jp/topics/
Description: 京都エンタテインメントワークス株式会社 トピックス用テーマ
Author: Kyoto Entertainment Works Inc.
Version: 1.0.0
*/

/* === KEW ブランド変数 ======================================================= */
:root {
  --kew-orange: #eb6210;
  --kew-orange-dark: #c44e08;
  --kew-orange-soft: #fde9d8;
  --kew-green: #4baa7f;
  --kew-green-dark: #028951;
  --kew-green-soft: #c3f3db;
  --kew-base: #f7f7ea;
  --kew-base-2: #eeeede;
  --kew-ink: #393633;
  --kew-ink-soft: #6a6660;
  --kew-line: #d8d6c5;
  --kew-cream: #fdfdf3;
  --kew-deep: #2a2722;
  --font-kokoro: 'Kokoro', 'Noto Serif JP', 'Hiragino Mincho ProN', 'Yu Mincho', serif;
  --font-jp: 'Noto Sans JP', -apple-system, 'Hiragino Sans', sans-serif;
  --font-en: 'Inter', 'Noto Sans JP', sans-serif;
}

/* === ベーススタイル ========================================================= */
*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-jp);
  background: var(--kew-base);
  color: var(--kew-ink);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  letter-spacing: 0.01em;
}

img { display: block; max-width: 100%; }
a { color: var(--kew-green-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4, p, ul, ol, figure { margin: 0; padding: 0; }
ul { list-style: none; }

/* === ヘッダー =============================================================== */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 56px;
  border-bottom: 1px solid var(--kew-line);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
  font-family: var(--font-jp);
  color: var(--kew-ink);
}
.site-header > a { flex-shrink: 0; }
.site-header > a img { height: 28px; width: auto; }
.site-header nav {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 13px;
  font-weight: 600;
}
.site-header nav a { color: var(--kew-ink); text-decoration: none; white-space: nowrap; }
.site-header nav a.active { color: var(--kew-orange); }
.site-header nav a:hover { color: var(--kew-orange); text-decoration: none; }
.site-header nav a.btn-contact {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  border-radius: 999px;
  font-family: var(--font-jp);
  padding: 8px 16px;
  font-size: 0.8rem;
  background: var(--kew-orange);
  color: #fff;
  box-shadow: 0 2px 0 var(--kew-orange-dark);
  transition: opacity 0.15s;
}
.site-header nav a.btn-contact:hover { opacity: 0.88; color: #fff; text-decoration: none; }

/* === Nav dropdown (header-dropdown.js が生成) =============================== */
.nav-dropdown {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.nav-dropdown-trigger { cursor: pointer; }
.nav-dropdown-trigger:focus { outline: none; }
.nav-dropdown-trigger:focus-visible {
  outline: 2px solid var(--kew-orange);
  outline-offset: 3px;
  border-radius: 4px;
}
.site-header nav a.nav-dropdown-trigger.active {
  color: var(--kew-orange);
  font-weight: 700;
}
.nav-dropdown-trigger::after {
  content: "";
  display: inline-block;
  width: 0; height: 0;
  margin-left: 6px;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  vertical-align: middle;
  transition: transform 0.15s;
}
.nav-dropdown:hover .nav-dropdown-trigger::after,
.nav-dropdown.is-open .nav-dropdown-trigger::after {
  transform: rotate(180deg);
}
.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: #fff;
  border: 1px solid var(--kew-line);
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  padding: 6px;
  min-width: 200px;
  display: none;
  z-index: 50;
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.is-open .nav-dropdown-menu {
  display: block;
}
.nav-dropdown-item {
  display: block;
  padding: 9px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--kew-ink);
  white-space: nowrap;
}
.nav-dropdown-item:hover {
  background: var(--kew-orange-soft);
  color: var(--kew-orange-dark);
  text-decoration: none;
}
.nav-dropdown-item.active {
  color: var(--kew-orange);
  font-weight: 700;
}
.nav-dropdown::after {
  content: "";
  position: absolute;
  top: 100%; left: 0; right: 0;
  height: 8px;
}

/* === ハンバーガーボタン（モバイル時のみ表示） =============================== */
.site-header-toggle {
  display: none;
  background: transparent;
  border: 0;
  width: 40px; height: 40px;
  padding: 0;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
}
.site-header-toggle-bar {
  display: block;
  position: absolute;
  left: 50%;
  width: 22px; height: 2px;
  background: var(--kew-ink);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: transform 0.2s, opacity 0.2s, top 0.2s;
}
.site-header-toggle-bar:nth-child(1) { top: 13px; }
.site-header-toggle-bar:nth-child(2) { top: 19px; }
.site-header-toggle-bar:nth-child(3) { top: 25px; }
.site-header.menu-open .site-header-toggle-bar:nth-child(1) {
  top: 19px; transform: translateX(-50%) rotate(45deg);
}
.site-header.menu-open .site-header-toggle-bar:nth-child(2) { opacity: 0; }
.site-header.menu-open .site-header-toggle-bar:nth-child(3) {
  top: 19px; transform: translateX(-50%) rotate(-45deg);
}

/* === フッター =============================================================== */
.site-footer {
  padding: 40px 56px;
  background: var(--kew-deep);
  color: #999;
  font-size: 0.875rem;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-nav {
  display: flex;
  gap: 24px;
}
.footer-nav a {
  color: #999;
  font-size: 0.8rem;
  text-decoration: none;
}
.footer-nav a:hover { color: #fff; text-decoration: none; }

/* === コンテンツエリア ======================================================= */
.kew-main {
  max-width: 860px;
  margin: 0 auto;
  padding: 60px 40px;
}

/* === 記事一覧 =============================================================== */
.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.post-list-item {
  border-bottom: 1px solid var(--kew-line);
}

.post-list-item a {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 20px 0;
  color: var(--kew-ink);
  text-decoration: none;
  transition: color 0.15s;
}
.post-list-item a:hover { color: var(--kew-orange); text-decoration: none; }

.post-date {
  font-family: var(--font-en);
  font-size: 0.8rem;
  color: var(--kew-ink-soft);
  white-space: nowrap;
  flex-shrink: 0;
}

.post-title-text {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.6;
}

.post-cat {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--kew-orange-soft);
  color: var(--kew-orange-dark);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ページタイトル */
.kew-page-title {
  font-family: var(--font-en);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.15rem;
  text-transform: uppercase;
  color: var(--kew-green-dark);
  margin-bottom: 8px;
}
.kew-page-subtitle {
  font-size: 0.8rem;
  color: var(--kew-ink-soft);
  margin-bottom: 40px;
}

/* ページネーション */
.kew-pagination {
  margin-top: 48px;
  display: flex;
  justify-content: center;
}
/* WordPressが出力する ul.page-numbers を横並びに */
.kew-pagination ul.page-numbers {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding: 0;
  margin: 0;
  list-style: none;
}
.kew-pagination ul.page-numbers li {
  display: flex;
}
.kew-pagination a,
.kew-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1.5px solid var(--kew-line);
  color: var(--kew-ink);
  text-decoration: none;
  transition: all 0.15s;
}
.kew-pagination a:hover {
  border-color: var(--kew-orange);
  color: var(--kew-orange);
  text-decoration: none;
}
.kew-pagination .current {
  background: var(--kew-orange);
  border-color: var(--kew-orange);
  color: #fff;
}

/* === 記事詳細 =============================================================== */
.post-header {
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--kew-line);
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.post-header h1 {
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--kew-ink);
}

.post-body {
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--kew-ink);
}
.post-body h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 2em 0 0.75em;
  padding-bottom: 0.5em;
  border-bottom: 2px solid var(--kew-orange);
  color: var(--kew-ink);
}
.post-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 1.75em 0 0.5em;
  color: var(--kew-ink);
}
.post-body p { margin-bottom: 1.5em; }
.post-body ul, .post-body ol {
  padding-left: 1.5em;
  margin-bottom: 1.5em;
  list-style: revert;
}
.post-body img {
  border-radius: 8px;
  margin: 1.5em 0;
}
.post-body a { color: var(--kew-green-dark); }
.post-body a:hover { color: var(--kew-orange); }
.post-body blockquote {
  margin: 1.5em 0;
  padding: 1em 1.5em;
  background: var(--kew-base-2);
  border-left: 4px solid var(--kew-orange);
  border-radius: 0 8px 8px 0;
  font-style: italic;
  color: var(--kew-ink-soft);
}

/* 記事下部の戻るリンク */
.post-back {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--kew-line);
}
.post-back a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--kew-ink-soft);
  text-decoration: none;
}
.post-back a:hover { color: var(--kew-orange); text-decoration: none; }

/* === レスポンシブ =========================================================== */
@media (max-width: 1080px) {
  /* ヘッダー：ハンバーガー化 */
  .site-header {
    padding: 10px 16px;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
  }
  .site-header > a { padding-bottom: 0; }
  .site-header > a img { height: 22px; }

  .site-header-toggle { display: block; }

  .site-header nav {
    display: none !important;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px 0 10px;
    border-top: 1px solid var(--kew-line);
    border-bottom: 1px solid var(--kew-line);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    font-size: 0.95rem;
    max-height: calc(100vh - 60px);
    overflow-y: auto;
    z-index: 99;
  }
  .site-header.menu-open nav { display: flex !important; }
  .site-header nav > a {
    display: block;
    padding: 14px 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  }
  .site-header nav a.btn-contact {
    display: inline-flex !important;
    margin: 14px 20px 6px;
    justify-content: center;
    border-bottom: 0;
  }

  /* AI for Science：トリガーは見出しに、子項目はインラインで常時表示 */
  .nav-dropdown {
    display: block;
    width: 100%;
    position: static;
  }
  .nav-dropdown-trigger {
    pointer-events: none;
    color: var(--kew-ink-soft);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
    padding: 14px 20px 4px;
    border-bottom: 0;
  }
  .nav-dropdown-trigger::after { display: none; }
  .nav-dropdown-menu {
    position: static !important;
    display: block !important;
    transform: none;
    box-shadow: none;
    border: 0;
    padding: 0;
    background: transparent;
    min-width: 0;
    max-width: none;
  }
  .nav-dropdown-item {
    display: block;
    padding: 12px 20px 12px 32px;
    font-size: 0.92rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  }
}

@media (max-width: 768px) {
  .site-footer { padding: 32px 20px; }
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
  .footer-nav { flex-wrap: wrap; justify-content: center; }

  .kew-main { padding: 40px 20px; }
  .post-list-item a { flex-wrap: wrap; gap: 8px; }
  .post-header h1 { font-size: 1.3rem; }
}