/*
Theme Name:  Cube Theme
Theme URI:   https://el-plan.com
Author:      EL-PLAN
Description: 有限会社キューブ 専用WordPressテーマ（3カラム）
Version:     1.0.0
License:     GNU General Public License v2 or later
Text Domain: cube-theme
*/

/* ===== CSS変数 ===== */
:root {
  --primary-color: #093c4f;
  --text-main:     #333333;
  --text-light:    #666666;
  --border-color:  #dddddd;
  --bg-light:      #f9f9f9;
  --serif: 'Noto Serif JP', serif;
  --sans:  'Noto Sans JP', sans-serif;
}

/* ===== リセット & ベース ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--sans);
  color: var(--text-main);
  background-color: #ffffff;
  line-height: 1.8;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--text-main);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: var(--primary-color);
  opacity: 0.8;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

/* ===== 全体レイアウト ===== */
.wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== ヘッダー ===== */
.site-header {
  padding: 30px 0 20px;
  border-bottom: 3px solid var(--primary-color);
  margin-bottom: 40px;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 20px;
}

.logo-area {
  display: flex;
  flex-direction: column;
}

.logo-main {
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--primary-color);
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.logo-main:hover {
  opacity: 0.8;
  color: var(--primary-color);
}

.logo-img {
  max-height: 60px;
  width: auto;
  display: block;
}

.logo-kana {
  font-family: var(--sans);
  font-size: 12px;
  color: var(--text-light);
  letter-spacing: 0.05em;
}

.tagline {
  font-size: 12px;
  color: var(--text-light);
  letter-spacing: 0.15em;
  margin-top: 5px;
}

/* グローバルナビ（WP wp_nav_menu 対応） */
.global-nav {
  display: flex;
  gap: 24px;
}

.global-nav ul {
  display: flex;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.global-nav ul li {
  display: flex;
  align-items: center;
}

.global-nav ul li a,
.global-nav a {
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--text-main);
}

.global-nav ul li a:hover,
.global-nav a:hover {
  color: var(--primary-color);
  opacity: 1;
}

/* ===== 3カラムコンテナ ===== */
.main-container {
  display: grid;
  grid-template-columns: 220px 1fr 280px;
  gap: 40px;
  margin-bottom: 60px;
  align-items: start;
}

/* ===== 左カラム (ナビゲーション) ===== */
.left-col {
  position: sticky;
  top: 20px;
}

.nav-box {
  border: 1px solid var(--primary-color);
  margin-bottom: 30px;
}

.nav-box-title {
  background-color: var(--primary-color);
  color: #fff;
  font-family: var(--serif);
  font-size: 14px;
  padding: 12px 15px;
  text-align: center;
  letter-spacing: 0.1em;
}

.nav-box-title span {
  display: block;
  font-family: var(--sans);
  font-size: 10px;
  letter-spacing: 0.2em;
  margin-top: 2px;
  opacity: 0.8;
}

.category-list li {
  border-bottom: 1px dotted var(--border-color);
}

.category-list li:last-child {
  border-bottom: none;
}

.category-list a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 15px;
  font-size: 13px;
  color: var(--text-main);
  transition: padding-left 0.2s ease, background-color 0.2s ease;
}

.category-list a:hover {
  background-color: var(--bg-light);
  color: var(--primary-color);
  padding-left: 20px;
  opacity: 1;
}

.cat-icon {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: var(--primary-color);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

/* ===== 中央カラム (メインコンテンツ) ===== */
.center-col {
  min-width: 0;
}

.section-title {
  font-family: var(--serif);
  font-size: 20px;
  color: var(--primary-color);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 10px;
  margin-bottom: 30px;
  display: flex;
  align-items: baseline;
  gap: 15px;
}

.section-title .en {
  font-family: var(--sans);
  font-size: 11px;
  color: var(--text-light);
  letter-spacing: 0.2em;
}

/* --- トップページ 施工事例カード --- */
.article-card {
  margin-bottom: 50px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 10px;
}

.article-date {
  font-size: 12px;
  color: var(--text-light);
  font-family: var(--serif);
  letter-spacing: 0.05em;
}

.article-cat {
  display: inline-block;
  font-size: 10px;
  color: #fff;
  background-color: var(--primary-color);
  padding: 3px 10px;
  letter-spacing: 0.05em;
}

.article-cat:hover {
  opacity: 0.8;
  color: #fff;
}

.article-title {
  font-family: var(--serif);
  font-size: 24px;
  line-height: 1.4;
  margin-bottom: 15px;
}

.article-title a {
  color: var(--text-main);
}

.article-title a:hover {
  color: var(--primary-color);
  opacity: 1;
}

.article-thumb {
  display: block;
  margin-bottom: 20px;
  overflow: hidden;
  background-color: #f0f0f0;
  aspect-ratio: 16 / 9;
}

.article-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.article-thumb:hover img {
  transform: scale(1.03);
}

.article-desc {
  font-size: 14px;
  color: var(--text-main);
  line-height: 1.9;
}

/* --- カテゴリーページ グリッド(3×3) --- */
.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.works-card-link {
  display: block;
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}

.works-card-link:hover {
  box-shadow: 0 4px 16px rgba(9,60,79,0.12);
  opacity: 1;
}

.works-thumb {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: #ebebeb;
}

.works-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.works-card-link:hover .works-thumb img {
  transform: scale(1.05);
}

.works-thumb-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: #aaa;
}

.works-card-body {
  padding: 12px 14px;
}

.works-date {
  font-size: 11px;
  color: var(--text-light);
  font-family: var(--serif);
  margin-bottom: 4px;
}

.works-title {
  font-family: var(--serif);
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-main);
}

/* カテゴリーページ ページネーション */
.nav-links {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 20px;
}

.page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border-color);
  font-size: 13px;
  color: var(--text-main);
  transition: all 0.2s ease;
}

.page-numbers.current,
.page-numbers:hover {
  background-color: var(--primary-color);
  color: #fff;
  border-color: var(--primary-color);
  opacity: 1;
}

/* --- 投稿詳細ページ --- */
.single-article {
  margin-bottom: 50px;
}

.single-title {
  font-family: var(--serif);
  font-size: 26px;
  line-height: 1.45;
  margin: 14px 0 20px;
  color: var(--text-main);
}

.single-thumb {
  margin-bottom: 30px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
}

.single-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.single-content {
  font-size: 15px;
  line-height: 2;
}

.single-content h2 {
  font-family: var(--serif);
  font-size: 20px;
  color: var(--primary-color);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
  margin: 40px 0 16px;
}

.single-content h3 {
  font-family: var(--serif);
  font-size: 17px;
  margin: 30px 0 12px;
}

.single-content p {
  margin-bottom: 16px;
}

.single-content img {
  margin: 20px 0;
  width: 100%;
  height: auto;
}

.single-nav {
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  margin-top: 40px;
}

.post-navigation {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 13px;
}

.post-navigation a {
  color: var(--primary-color);
}

/* ===== 右カラム (サイドバー) ===== */
.right-col {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.contact-btn {
  display: block;
  background-color: var(--primary-color);
  color: #fff;
  text-align: center;
  padding: 16px;
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: 0.1em;
  border: 1px solid var(--primary-color);
  transition: all 0.3s ease;
}

.contact-btn:hover {
  background-color: #fff;
  color: var(--primary-color);
  opacity: 1;
}

.award-badge {
  border: 2px solid #ce9f43;
  padding: 15px;
  text-align: center;
  background-color: #fffdf5;
}

.award-badge .year {
  font-size: 11px;
  color: #ce9f43;
  letter-spacing: 0.1em;
  margin-bottom: 5px;
}

.award-badge .title {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 600;
  color: #b8860b;
  line-height: 1.4;
}

.widget {
  border-top: 2px solid var(--primary-color);
  padding-top: 15px;
}

.widget-title {
  font-family: var(--sans);
  font-size: 11px;
  color: var(--text-light);
  letter-spacing: 0.2em;
  margin-bottom: 15px;
}

.banner-link {
  display: block;
  border: 1px solid var(--border-color);
  padding: 15px;
  margin-bottom: 15px;
  background-color: #fff;
}

.banner-link:hover {
  background-color: var(--bg-light);
  border-color: var(--primary-color);
  opacity: 1;
}

.banner-link .btitle {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--primary-color);
  margin-bottom: 5px;
}

.banner-link .bdesc {
  font-size: 11px;
  color: var(--text-light);
}

.sns-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sns-link {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-main);
}

.sns-link svg {
  width: 18px;
  height: 18px;
  fill: var(--text-light);
  flex-shrink: 0;
}

.sns-link:hover {
  color: var(--primary-color);
  opacity: 1;
}

.sns-link:hover svg {
  fill: var(--primary-color);
}

.sns-disabled {
  color: #999;
  cursor: default;
}

.sns-disabled:hover {
  color: #999;
}

.sns-disabled svg {
  fill: #ccc;
}

.company-info {
  font-size: 12px;
  color: var(--text-light);
  line-height: 1.8;
}

.company-info strong {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--text-main);
  display: block;
  margin-bottom: 5px;
}

/* ===== フッター ===== */
.site-footer {
  background-color: var(--bg-light);
  border-top: 1px solid var(--border-color);
  padding: 40px 0;
  margin-top: 60px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

/* フッターナビ（WP wp_nav_menu 対応） */
.footer-nav {
  display: flex;
  gap: 20px;
  font-size: 12px;
}

.footer-nav ul {
  display: flex;
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.footer-nav ul li a,
.footer-nav a {
  font-size: 12px;
  color: var(--text-main);
}

.footer-nav ul li a:hover,
.footer-nav a:hover {
  color: var(--primary-color);
  opacity: 1;
}

.copyright {
  font-size: 11px;
  color: var(--text-light);
  letter-spacing: 0.05em;
}

/* --- 固定ページ --- */
.page-article {
  margin-bottom: 50px;
}

.page-title {
  font-family: var(--serif);
  font-size: 26px;
  line-height: 1.45;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
  color: var(--primary-color);
}

.page-thumb {
  margin-bottom: 30px;
  overflow: hidden;
}

.page-thumb img {
  width: 100%;
  height: auto;
}

.page-content {
  font-size: 15px;
  line-height: 2;
}

.page-content h2 {
  font-family: var(--serif);
  font-size: 20px;
  color: var(--primary-color);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
  margin: 40px 0 16px;
}

.page-content h3 {
  font-family: var(--serif);
  font-size: 17px;
  margin: 30px 0 12px;
}

.page-content p {
  margin-bottom: 16px;
}

.page-content img {
  margin: 20px 0;
  width: 100%;
  height: auto;
}

.page-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
}

.page-content th,
.page-content td {
  border: 1px solid var(--border-color);
  padding: 10px 14px;
  text-align: left;
}

.page-content th {
  background-color: var(--bg-light);
  font-weight: 600;
  color: var(--primary-color);
}

/* ===== レスポンシブ (スマホ) ===== */
@media (max-width: 900px) {
  .main-container {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .left-col {
    position: static;
    order: 2;
  }

  .center-col {
    order: 1;
  }

  .right-col {
    order: 3;
    flex-direction: column;
  }

  .header-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .global-nav,
  .global-nav ul {
    flex-wrap: wrap;
    justify-content: center;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .works-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .article-title {
    font-size: 18px;
  }
}

@media (max-width: 480px) {
  .works-grid {
    grid-template-columns: 1fr;
  }
}