/* ========================================
   和モダン - 株式会社 関造園サイトスタイル
======================================== */

:root {
  /* カラーパレット - より洗練された和モダン */
  --color-primary: #1a4d3a;      /* 深い緑青 */
  --color-secondary: #2b2b2b;    /* 濃墨色 */
  --color-accent: #d4af37;       /* 金色 */
  --color-bg: #fdfcfa;           /* ほぼ白 */
  --color-bg-dark: #f7f5f2;      /* 極薄ベージュ */
  --color-bg-darker: #ebe8e3;    /* 薄墨色 */
  --color-text: #1a1a1a;         /* 濃いテキスト */
  --color-text-light: #757575;   /* ライトグレー */
  --color-white: #ffffff;
  --color-overlay: rgba(26, 77, 58, 0.85);

  /* フォント */
  --font-sans: 'Noto Sans JP', sans-serif;
  --font-serif: 'Noto Serif JP', serif;

  /* スペーシング - バランスの取れた余白 */
  --spacing-xs: 0.5rem;     /* 8px */
  --spacing-sm: 1rem;       /* 16px */
  --spacing-md: 1.5rem;     /* 24px */
  --spacing-lg: 2.5rem;     /* 40px */
  --spacing-xl: 4rem;       /* 64px */
  --spacing-xxl: 5rem;      /* 80px */

  /* コンテナ幅 */
  --container-width: 1200px;

  /* トランジション */
  --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   リセット & ベーススタイル
======================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-secondary);
}

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

a:hover {
  color: var(--color-accent);
}

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

/* ========================================
   ユーティリティクラス
======================================== */

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.text-center {
  text-align: center;
}

.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
  padding-bottom: var(--spacing-sm);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--color-accent), transparent);
  margin: var(--spacing-sm) auto 0;
}

/* ========================================
   ボタンスタイル
======================================== */

.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  text-align: center;
  transition: all 0.4s var(--transition-smooth);
  border: 2px solid transparent;
  cursor: pointer;
  letter-spacing: 0.05em;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border: 2px solid var(--color-white);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-white);
}

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  border: 2px solid var(--color-primary);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(26, 77, 58, 0.3);
}

/* ========================================
   ヘッダー
======================================== */

.site-header {
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: all 0.3s var(--transition-smooth);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
}

.logo a {
  display: block;
  color: var(--color-primary);
}

.logo h1 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 0.1rem;
  letter-spacing: 0.05em;
}

.logo-subtitle {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--color-text-light);
  font-weight: 400;
}

.logo-image {
  height: 50px;
  width: auto;
  display: block;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 0.5rem;
}

.main-nav a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text);
  padding: 0.6rem 1.2rem;
  border-radius: 50px;
  transition: all 0.3s var(--transition-smooth);
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0.3rem;
  left: 1.2rem;
  right: 1.2rem;
  height: 2px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transition: transform 0.3s var(--transition-smooth);
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-primary);
  background-color: var(--color-bg-dark);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--color-primary);
  transition: all 0.3s ease;
}

/* ========================================
   ヒーローセクション
======================================== */

.hero {
  position: relative;
  height: 75vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: url('/images/hero-garden.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: var(--color-white);
  text-align: center;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-overlay) 0%, rgba(26, 77, 58, 0.75) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: var(--spacing-xl);
  max-width: 900px;
  animation: fadeInUp 1s var(--transition-smooth);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-title {
  font-size: 4.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: #ffffff !important;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.5), 0 2px 10px rgba(0, 0, 0, 0.3);
  letter-spacing: 0.1em;
  line-height: 1.3;
}

.hero-subtitle {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-xl);
  letter-spacing: 0.3em;
  color: #ffffff !important;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  font-weight: 300;
  opacity: 0.95;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ========================================
   サービスセクション
======================================== */

.services {
  padding: var(--spacing-lg) 0;
  background-color: var(--color-white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  max-width: 900px;
  margin: 0 auto;
}

.service-card {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-lg);
  background-color: var(--color-white);
  border-radius: 16px;
  transition: all 0.5s var(--transition-smooth);
  border: 1px solid var(--color-bg-darker);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(to right, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transition: transform 0.5s var(--transition-smooth);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card:hover {
  transform: translateY(-12px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
  border-color: transparent;
}

.service-icon {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-md);
  filter: grayscale(0.3);
  transition: all 0.5s var(--transition-smooth);
}

.service-card:hover .service-icon {
  filter: grayscale(0);
  transform: scale(1.1);
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-secondary);
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: color 0.3s ease;
}

.service-card:hover h3 {
  color: var(--color-primary);
}

.service-card p {
  color: var(--color-text-light);
  line-height: 1.9;
  font-size: 0.95rem;
}

/* ========================================
   施工事例セクション
======================================== */

.recent-works {
  padding: var(--spacing-lg) 0;
  background-color: var(--color-bg-dark);
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.work-card {
  position: relative;
  background-color: var(--color-white);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  transition: all 0.5s var(--transition-smooth);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.work-card:hover {
  transform: translateY(-12px);
  box-shadow: 0 20px 50px rgba(26, 77, 58, 0.15);
}

.work-card a {
  display: flex;
  flex-direction: column;
  height: 100%;
  text-decoration: none;
}

.work-image {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background-size: cover;
  background-position: center;
  overflow: hidden;
  flex-shrink: 0;
}

.work-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, transparent 40%, rgba(0, 0, 0, 0.7) 100%);
  z-index: 1;
  transition: opacity 0.5s var(--transition-smooth);
}

.work-card:hover .work-image::before {
  background: linear-gradient(to bottom, transparent 30%, rgba(0, 0, 0, 0.8) 100%);
}

.work-card:hover .work-image {
  transform: scale(1.08);
  transition: transform 0.8s var(--transition-smooth);
}

.work-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-md) var(--spacing-md) var(--spacing-md);
  color: var(--color-white);
  z-index: 2;
  transform: translateY(0);
  transition: transform 0.5s var(--transition-smooth);
}

.work-card:hover .work-info {
  transform: translateY(-8px);
}

.work-date {
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
  opacity: 0.85;
  letter-spacing: 0.15em;
  font-weight: 500;
  text-transform: uppercase;
}

.work-info h3 {
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-white);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
  margin: 0;
  letter-spacing: 0.02em;
}

.work-category {
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
  background-color: rgba(255, 255, 255, 0.98);
  color: var(--color-primary);
  padding: 0.5rem 1.2rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  z-index: 2;
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
  letter-spacing: 0.05em;
  transition: all 0.3s var(--transition-smooth);
}

.work-card:hover .work-category {
  background-color: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-4px);
}

/* ========================================
   お客様の声セクション
======================================== */

.testimonials {
  padding: var(--spacing-lg) 0;
  background-color: var(--color-white);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  max-width: 1100px;
  margin: 0 auto;
}

.testimonial-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-bg-darker);
  border-radius: 12px;
  padding: var(--spacing-md);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  transition: transform 0.3s var(--transition-smooth), box-shadow 0.3s var(--transition-smooth);
}

.testimonial-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 32px rgba(26, 77, 58, 0.1);
}

.testimonial-meta {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-sm);
  font-weight: 700;
  color: var(--color-primary);
}

.testimonial-date {
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.testimonial-customer {
  font-size: 1.05rem;
  color: var(--color-secondary);
}

.testimonial-card p {
  color: var(--color-text);
  line-height: 1.9;
  font-size: 0.95rem;
}

/* ========================================
   お知らせセクション
======================================== */

.recent-news {
  padding: var(--spacing-lg) 0;
  background-color: var(--color-white);
}

.news-list {
  max-width: 900px;
  margin: 0 auto var(--spacing-lg);
  background-color: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.news-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border-left: 3px solid transparent;
  transition: all 0.3s var(--transition-smooth);
  border-radius: 8px;
  margin-bottom: var(--spacing-xs);
  align-items: center;
}

.news-item:hover {
  background-color: var(--color-bg);
  border-left-color: var(--color-accent);
  transform: translateX(8px);
}

.news-item time {
  flex-shrink: 0;
  color: var(--color-text-light);
  font-size: 0.85rem;
  width: 110px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.news-content {
  flex: 1;
}

.news-item h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0;
}

.news-item h3 a {
  color: var(--color-text);
  transition: color 0.3s ease;
  position: relative;
}

.news-item h3 a::after {
  content: '→';
  opacity: 0;
  margin-left: 0.5rem;
  transition: all 0.3s var(--transition-smooth);
}

.news-item:hover h3 a {
  color: var(--color-primary);
}

.news-item:hover h3 a::after {
  opacity: 1;
  margin-left: 0.8rem;
}

/* ========================================
   ページヘッダー
======================================== */

.page-header {
  text-align: center;
  padding: var(--spacing-xl) 0 var(--spacing-lg);
  position: relative;
}

.page-header::after {
  content: '';
  display: block;
  width: 80px;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--color-accent), transparent);
  margin: var(--spacing-md) auto 0;
}

.page-header h1 {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-secondary);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.page-description {
  font-size: 1.1rem;
  color: var(--color-text-light);
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto;
}

/* ========================================
   シングルページ
======================================== */

.single-page,
.list-page,
.works-page,
.news-page,
.work-detail {
  padding: var(--spacing-lg) 0;
  min-height: 60vh;
}

.page-content {
  max-width: 1000px;
  margin: 0 auto;
  padding: var(--spacing-lg);
  background-color: var(--color-white);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.page-content h2 {
  font-size: 1.8rem;
  margin: var(--spacing-lg) 0 var(--spacing-sm);
  color: var(--color-primary);
}

.page-content h3 {
  font-size: 1.4rem;
  margin: var(--spacing-md) 0 var(--spacing-sm);
}

.page-content p {
  margin-bottom: var(--spacing-sm);
  line-height: 1.9;
}

.page-content ul,
.page-content ol {
  margin: var(--spacing-sm) 0 var(--spacing-sm) var(--spacing-md);
}

.page-content li {
  margin-bottom: 0.5rem;
}

/* ========================================
   施工事例詳細
======================================== */

.work-detail {
  background-color: var(--color-bg);
}

/* パンくずリスト */
.breadcrumb-wrapper {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-bg-darker);
  padding: var(--spacing-md) 0;
  margin-bottom: var(--spacing-xl);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.85rem;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--color-text-light);
  transition: all 0.3s var(--transition-smooth);
  position: relative;
  padding: 0.2rem 0;
}

.breadcrumb a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-primary);
  transition: width 0.3s var(--transition-smooth);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb a:hover::after {
  width: 100%;
}

.breadcrumb .separator {
  color: var(--color-text-light);
  user-select: none;
  opacity: 0.5;
}

.breadcrumb .current {
  color: var(--color-text);
  font-weight: 600;
}

/* パンくずリスト（共通パーシャル用） */
.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  margin: 0 0 var(--spacing-lg) 0;
}

.breadcrumb-item {
  display: flex;
  align-items: center;
}

.breadcrumb-item:not(:last-child)::after {
  content: '›';
  margin-left: 0.5rem;
  color: var(--color-text-light);
  opacity: 0.5;
}

.breadcrumb-item a {
  color: var(--color-text-light);
  transition: color 0.3s var(--transition-smooth);
}

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

.breadcrumb-item.current {
  color: var(--color-text);
  font-weight: 600;
}

/* ヘッダー */
.work-header {
  margin-bottom: var(--spacing-lg);
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}

.work-header-content h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-secondary);
  line-height: 1.4;
  font-weight: 700;
}

.work-meta-inline {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.work-meta-inline .badge {
  display: inline-block;
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 0.5rem 1.2rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.work-meta-inline time {
  color: var(--color-text-light);
  font-size: 0.9rem;
  font-weight: 500;
}

/* 画像ギャラリー */
.work-gallery {
  display: grid;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

/* 1枚の場合：大きく表示 */
.work-gallery:has(.gallery-item:only-child) {
  grid-template-columns: 1fr;
}

/* 2-4枚の場合：2列グリッド */
.work-gallery:has(.gallery-item:nth-child(2)):not(:has(.gallery-item:nth-child(5))) {
  grid-template-columns: repeat(2, 1fr);
}

/* 5枚以上の場合：1枚目を大きく、残りを3列 */
.work-gallery:has(.gallery-item:nth-child(5)) {
  grid-template-columns: repeat(3, 1fr);
}

.work-gallery:has(.gallery-item:nth-child(5)) .gallery-item:first-child {
  grid-column: 1 / 4;
}

/* ギャラリーアイテム */
.gallery-item {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  background-color: var(--color-white);
  aspect-ratio: 4 / 3;
  cursor: pointer;
  border: 1px solid var(--color-bg-darker);
  width: 100%;
}

.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: transform 0.5s var(--transition-smooth);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(0, 0, 0, 0.3) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.gallery-item:hover::after {
  opacity: 1;
}

/* 1枚目（メイン写真）のスタイル */
.work-gallery:has(.gallery-item:only-child) .gallery-item {
  aspect-ratio: 16 / 9;
  max-height: 550px;
}

.work-gallery:has(.gallery-item:nth-child(5)) .gallery-item:first-child {
  aspect-ratio: 16 / 9;
  max-height: 500px;
}

/* メタ情報セクション */
/* メタ情報（インライン形式） */
.work-meta-inline-section {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-sm) var(--spacing-lg);
  padding-top: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

.work-meta-inline-section .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.work-meta-inline-section .meta-icon {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
}

/* コンテンツ */
.work-content {
  max-width: 1000px;
  background-color: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: 12px;
  margin: 0 auto var(--spacing-lg);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  line-height: 1.9;
}

.work-content h2 {
  font-size: 1.6rem;
  margin: var(--spacing-lg) 0 var(--spacing-md);
  color: var(--color-primary);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-bg-darker);
  font-weight: 700;
}

.work-content h2:first-of-type {
  margin-top: 0;
}

.work-content h3 {
  font-size: 1.3rem;
  margin: var(--spacing-md) 0 var(--spacing-sm);
  color: var(--color-secondary);
  font-weight: 600;
}

.work-content p {
  margin-bottom: var(--spacing-sm);
}

.work-content ul,
.work-content ol {
  margin: var(--spacing-sm) 0 var(--spacing-sm) var(--spacing-md);
}

.work-content li {
  margin-bottom: 0.5rem;
}

.work-nav {
  text-align: center;
  margin-top: var(--spacing-xl);
  padding: var(--spacing-lg) 0;
}

/* ========================================
   施工前・施工後セクション
======================================== */

.before-after-section {
  max-width: 1000px;
  margin: 0 auto var(--spacing-xl);
  padding: var(--spacing-lg);
  background-color: var(--color-white);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.before-after-title {
  font-size: 1.6rem;
  margin: 0 0 var(--spacing-lg) 0;
  color: var(--color-primary);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-bg-darker);
  font-weight: 700;
  text-align: center;
}

/* 複数のビフォーアフターペアの間隔 */
.before-after-container {
  margin-bottom: var(--spacing-xl);
}

.before-after-container:last-child {
  margin-bottom: 0;
}

/* デスクトップ: 2列グリッド */
.before-after-wrapper {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.before-after-item {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--color-bg-darker);
  cursor: pointer;
}

/* ホバーエフェクト（既存パターンと統一） */
.before-after-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.before-after-image-wrapper {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.before-after-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.before-after-item:hover img {
  transform: scale(1.05);
}

/* ラベル */
.before-after-label {
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-sm);
  padding: 0.5rem 1.2rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  z-index: 2;
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.before-label {
  background-color: rgba(117, 117, 117, 0.95);  /* グレー */
  color: var(--color-white);
}

.after-label {
  background-color: rgba(26, 77, 58, 0.95);  /* ブランドグリーン */
  color: var(--color-white);
}

/* キャプション */
.before-after-caption {
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-top: var(--spacing-sm);
}

/* レスポンシブ: タブレット */
@media (max-width: 768px) {
  .before-after-wrapper {
    grid-template-columns: 1fr;  /* 単列に変更 */
    gap: var(--spacing-sm);
  }

  /* 視覚的な区切りとして下向き矢印を追加 */
  .before-after-item.before-item::after {
    content: '↓';
    position: absolute;
    bottom: -1.5rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.5rem;
    color: var(--color-text-light);
    z-index: 10;
  }

  .before-after-container {
    margin-bottom: calc(var(--spacing-xl) + 1.5rem);  /* 矢印の分のスペースを確保 */
  }
}

/* レスポンシブ: モバイル */
@media (max-width: 480px) {
  .before-after-section {
    padding: var(--spacing-md);
  }

  .before-after-title {
    font-size: 1.4rem;
  }

  .before-after-label {
    font-size: 0.8rem;
    padding: 0.4rem 1rem;
  }
}

/* 施工事例ページ */
.works-page {
  background-color: var(--color-bg);
}

.works-page .page-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, #267052 100%);
  color: var(--color-white);
  border-radius: 0 0 40px 40px;
  margin-bottom: var(--spacing-xl);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.works-page .page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
  opacity: 0.3;
}

.works-page .page-header h1 {
  color: var(--color-white);
  position: relative;
  z-index: 1;
}

.works-page .page-header::after {
  background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.3), transparent);
}

.works-page .page-description {
  color: rgba(255, 255, 255, 0.95);
  position: relative;
  z-index: 1;
}

/* ========================================
   フッター
======================================== */

.site-footer {
  background: linear-gradient(135deg, #1a1a1a 0%, var(--color-secondary) 100%);
  color: var(--color-white);
  padding: var(--spacing-xl) 0 var(--spacing-md);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-accent), transparent);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-info h3 {
  font-size: 1.8rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-white);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.footer-info p {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
}

.footer-contact h4 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer-contact p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 0.6rem;
  font-size: 0.95rem;
}

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

.footer-nav li {
  margin-bottom: 0.8rem;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.7);
  transition: all 0.3s var(--transition-smooth);
  display: inline-block;
  position: relative;
  padding-left: 0;
}

.footer-nav a::before {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width 0.3s var(--transition-smooth);
}

.footer-nav a:hover {
  color: var(--color-white);
  padding-left: 10px;
}

.footer-nav a:hover::before {
  width: 20px;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

/* ========================================
   レスポンシブデザイン
======================================== */

@media (max-width: 1024px) {
  .works-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

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

  .work-image {
    aspect-ratio: 4 / 3;
  }

  .work-meta-inline-section {
    gap: var(--spacing-sm) var(--spacing-md);
  }

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

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .header-content {
    flex-wrap: wrap;
  }

  .logo-image {
    height: 40px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    display: none;
    width: 100%;
    order: 3;
  }

  .main-nav.active {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 0;
    padding-top: var(--spacing-sm);
  }

  .main-nav li {
    width: 100%;
  }

  .main-nav a {
    display: block;
    padding: var(--spacing-sm);
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .news-item {
    flex-direction: column;
    gap: var(--spacing-xs);
  }

  .news-item time {
    width: auto;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .works-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
  }

  .work-card {
    margin: 0 auto;
    max-width: 500px;
    height: auto;
  }

  .work-card a {
    height: auto;
  }

  .work-image {
    aspect-ratio: 4 / 3;
    min-height: 280px;
  }

  .work-info {
    padding: var(--spacing-md);
  }

  .work-info h3 {
    font-size: 1.15rem;
  }

  .work-meta {
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .meta-item {
    min-width: 100%;
  }

  .work-gallery:has(.gallery-item:nth-child(2)):not(:has(.gallery-item:nth-child(5))) {
    grid-template-columns: 1fr;
  }

  .work-gallery:has(.gallery-item:nth-child(5)) {
    grid-template-columns: repeat(2, 1fr);
  }

  .work-gallery:has(.gallery-item:nth-child(5)) .gallery-item:first-child {
    grid-column: 1 / -1;
  }

  .work-content {
    padding: var(--spacing-md);
  }

  .work-header-content h1 {
    font-size: 1.8rem;
  }

  .work-meta-inline-section {
    gap: var(--spacing-xs) var(--spacing-sm);
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  .logo-image {
    height: 35px;
  }

  .hero {
    height: 500px;
    min-height: 500px;
    background-attachment: scroll;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    font-size: 0.9rem;
  }

  .hero-content {
    padding: var(--spacing-lg);
  }

  .section-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
  }

  .services-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .service-card {
    padding: var(--spacing-lg);
  }

  .works-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .work-card {
    width: 100%;
    max-width: 100%;
    height: auto;
  }

  .work-card a {
    height: auto;
  }

  .work-image {
    aspect-ratio: 4 / 3;
    min-height: 300px;
  }

  .work-info {
    padding: var(--spacing-md);
  }

  .work-category {
    font-size: 0.8rem;
    padding: 0.5rem 1rem;
    top: var(--spacing-md);
    left: var(--spacing-md);
  }

  .work-date {
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
  }

  .work-info h3 {
    font-size: 1.2rem;
  }

  .btn {
    padding: 0.9rem 2rem;
    font-size: 0.9rem;
  }

  .breadcrumb {
    font-size: 0.8rem;
  }

  .page-header {
    padding: var(--spacing-lg) 0;
  }

  .page-header h1 {
    font-size: 2rem;
  }

  .work-header-content h1 {
    font-size: 1.8rem;
  }

  .work-meta-inline-section {
    flex-direction: column;
    gap: var(--spacing-xs);
  }

  .work-meta-inline-section .meta-item {
    justify-content: flex-start;
  }

  .work-content {
    padding: var(--spacing-md);
  }

  .work-content h2 {
    font-size: 1.5rem;
  }

  .work-content h3 {
    font-size: 1.2rem;
  }

  .work-gallery {
    grid-template-columns: 1fr !important;
  }

  .work-gallery:has(.gallery-item:nth-child(5)) .gallery-item:first-child {
    grid-column: 1;
  }

  .gallery-item {
    aspect-ratio: 4 / 3;
  }

  .work-gallery:has(.gallery-item:only-child) .gallery-item,
  .work-gallery:has(.gallery-item:nth-child(5)) .gallery-item:first-child {
    aspect-ratio: 16 / 10;
  }

  .page-content {
    padding: var(--spacing-md);
  }
}

/* ========================================
   ライトボックス（画像拡大表示）
======================================== */

.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.95);
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.lightbox.active {
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
}

.lightbox-content {
  position: relative;
  max-width: 95%;
  max-height: 95vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-image {
  max-width: 100%;
  max-height: 95vh;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 10px 50px rgba(0, 0, 0, 0.5);
  cursor: zoom-in;
  transform-origin: center center;
  transition: transform 0.3s ease;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  background-color: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: white;
  transition: all 0.3s ease;
  z-index: 10001;
}

.lightbox-close:hover {
  background-color: rgba(255, 255, 255, 0.3);
  transform: rotate(90deg);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background-color: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: white;
  transition: all 0.3s ease;
  z-index: 10001;
}

.lightbox-nav:hover {
  background-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
  left: 20px;
}

.lightbox-next {
  right: 20px;
}

.lightbox-counter {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: white;
  background-color: rgba(0, 0, 0, 0.6);
  padding: 0.8rem 1.5rem;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 500;
  backdrop-filter: blur(10px);
  z-index: 10001;
}

/* ギャラリー画像にカーソルを当てたときの視覚的フィードバック */
.gallery-item {
  cursor: pointer;
  position: relative;
}

.gallery-item::before {
  content: '🔍';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 3rem;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 10;
  pointer-events: none;
}

.gallery-item:hover::before {
  opacity: 0.8;
}

/* モバイル用の調整 */
@media (max-width: 768px) {
  .lightbox-close,
  .lightbox-nav {
    width: 44px;
    height: 44px;
    font-size: 20px;
  }

  .lightbox-close {
    top: 10px;
    right: 10px;
  }

  .lightbox-prev {
    left: 10px;
  }

  .lightbox-next {
    right: 10px;
  }

  .lightbox-counter {
    bottom: 20px;
    font-size: 0.85rem;
    padding: 0.6rem 1.2rem;
  }

  .gallery-item::before {
    font-size: 2rem;
  }
}

/* ========================================
   統一セクションスタイル（施工事例風）
======================================== */

/* 共通セクションボックス */
.section-card {
  background-color: var(--color-white);
  border-radius: 8px;
  padding: var(--spacing-lg);
  max-width: 1000px;
  margin: var(--spacing-lg) auto;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  line-height: 1.9;
}

/* セクションヘッダー（h2スタイル） */
.section-card h2 {
  font-size: 1.6rem;
  margin: 0 0 var(--spacing-md) 0;
  color: var(--color-primary);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-bg-darker);
  font-weight: 700;
}

/* 代表挨拶 */
.greeting-card p:last-child {
  text-align: right;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: var(--spacing-md);
}

/* ========================================
   会社情報セクション（テーブル形式）
======================================== */

.company-card {
  background-color: var(--color-white);
  border-radius: 8px;
  padding: var(--spacing-lg);
  max-width: 1000px;
  margin: var(--spacing-lg) auto;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  line-height: 1.9;
}

.company-card-header h2 {
  font-size: 1.6rem;
  margin: 0 0 var(--spacing-sm) 0;
  color: var(--color-primary);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-bg-darker);
  font-weight: 700;
}

.company-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--spacing-md);
  background-color: var(--color-white);
  border-radius: 8px;
  overflow: hidden;
}

.company-table tr {
  border-bottom: 1px solid var(--color-bg-darker);
}

.company-table tr:last-child {
  border-bottom: none;
}

.company-table th {
  text-align: left;
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-light);
  background-color: var(--color-bg-dark);
  white-space: nowrap;
  width: 120px;
  vertical-align: top;
}

.company-table td {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 1rem;
  color: var(--color-text);
  line-height: 1.7;
}

.company-table td a {
  color: var(--color-primary);
  font-weight: 600;
  transition: color 0.3s ease;
  text-decoration: none;
}

.company-table td a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

/* ========================================
   事業内容セクション
======================================== */

.services-section h2 {
  font-size: 1.6rem;
  margin: 0 0 var(--spacing-md) 0;
  color: var(--color-primary);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-bg-darker);
  font-weight: 700;
}

.services-grid-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.service-detail-card {
  padding: 0;
  border: none;
  background: none;
}

.service-detail-header h3 {
  font-size: 1.3rem;
  margin: 0 0 var(--spacing-sm) 0;
  color: var(--color-secondary);
  font-weight: 600;
}

.service-detail-card p {
  margin: 0;
  color: var(--color-text);
  line-height: 1.9;
  font-size: 0.95rem;
}

/* ========================================
   レスポンシブ対応（セクション全体）
======================================== */

@media (max-width: 768px) {
  .section-card {
    margin: var(--spacing-md) auto;
    padding: var(--spacing-md);
  }

  .section-card h2 {
    font-size: 1.4rem;
  }

  .company-card {
    padding: var(--spacing-md);
  }

  .company-table th,
  .company-table td {
    display: block;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .company-table th {
    padding-bottom: 0.3rem;
    background-color: transparent;
    color: var(--color-primary);
    font-size: 0.85rem;
  }

  .company-table td {
    padding-top: 0.3rem;
    padding-bottom: var(--spacing-md);
  }

  .company-table tr {
    border-bottom: 1px solid var(--color-bg-darker);
    padding: var(--spacing-sm) 0;
  }

  .services-grid-cards {
    grid-template-columns: 1fr;
  }

  .service-detail-header h3 {
    font-size: 1.2rem;
  }
}

/* ========================================
   404エラーページ
======================================== */

.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl) var(--spacing-md);
}

.error-content {
  text-align: center;
  max-width: 600px;
}

.error-title {
  font-size: 8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0;
  line-height: 1;
  font-family: var(--font-primary);
}

.error-subtitle {
  font-size: 1.8rem;
  color: var(--color-text);
  margin: var(--spacing-md) 0;
  font-weight: 600;
}

.error-message {
  font-size: 1rem;
  color: var(--color-text-light);
  line-height: 1.8;
  margin: var(--spacing-md) 0 var(--spacing-lg) 0;
}

.error-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-top: var(--spacing-xl);
}

.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: 4px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 1rem;
}

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

@media (max-width: 768px) {
  .error-title {
    font-size: 5rem;
  }

  .error-subtitle {
    font-size: 1.4rem;
  }

  .error-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}