/* ==========================================================================
   有限会社キメラワークス - 共通スタイルシート (style.css)
   ========================================================================== */

/* 1. フォントインポート */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700&family=Outfit:wght@300;400;600;700&display=swap');

/* 2. 変数定義 (デザインシステム) */
:root {
  /* カラーパレット */
  --color-primary: #1f2421;      /* 深みのあるチャコールグレー */
  --color-secondary: #606c64;    /* サブテキスト用グレー */
  --color-accent: #b89047;       /* ウォームゴールド */
  --color-accent-hover: #987332; /* ゴールド（ホバー時） */
  
  --bg-primary: #ffffff;         /* メイン背景 */
  --bg-secondary: #fcfbfa;       /* サブ背景（温かみのあるオフホワイト） */
  --bg-dark: #111412;            /* ダーク背景（ヒーロー・フッター） */
  --bg-overlay: rgba(31, 36, 33, 0.5); /* ヒーローオーバーレイ */
  
  --border-color: #eae7e2;       /* 境界線 */
  
  /* タイポグラフィ */
  --font-en: 'Outfit', sans-serif;
  --font-ja: 'Noto Sans JP', sans-serif;
  
  /* シャドウ */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
  
  /* トランジション */
  --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-fast: all 0.2s ease;
  
  /* レイアウト */
  --header-height: 80px;
  --max-width: 1200px;
}

/* 3. リセット & 共通設定 */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-ja);
  background-color: var(--bg-primary);
  color: var(--color-primary);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

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

ul, ol {
  list-style: none;
}

/* 共通コンポーネント */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section-bg {
  background-color: var(--bg-secondary);
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title span {
  font-family: var(--font-en);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
}

.section-title h2 {
  font-size: 2rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  position: relative;
  display: inline-block;
  padding-bottom: 12px;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 2px;
  background-color: var(--color-accent);
}

/* ボタン */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 32px;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  border-radius: 0;
  transition: var(--transition-smooth);
  cursor: pointer;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
  border: 1px solid var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

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

/* 4. ヘッダー */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-smooth);
}

.header.scrolled {
  height: 70px;
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header__logo {
  display: flex;
  align-items: center;
  font-family: var(--font-en);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-primary);
}

.header__logo svg {
  width: 28px;
  height: 28px;
  margin-right: 10px;
  fill: var(--color-accent);
}

.nav__list {
  display: flex;
  gap: 40px;
}

.nav__link {
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 8px 0;
  color: var(--color-primary);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1.5px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}

.nav__link:hover::after,
.nav__link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav__link.active {
  color: var(--color-accent);
}

/* モバイルメニュー用トグル */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 20px;
  cursor: pointer;
  z-index: 1001;
}

.menu-toggle span {
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  transition: var(--transition-smooth);
}

/* 5. フッター */
.footer {
  background-color: var(--bg-dark);
  color: #fff;
  padding: 60px 0;
  font-size: 0.9rem;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 30px;
}

.footer__logo {
  display: flex;
  align-items: center;
  font-family: var(--font-en);
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
}

.footer__logo svg {
  width: 30px;
  height: 30px;
  margin-right: 10px;
  fill: var(--color-accent);
}

.footer__nav {
  display: flex;
  gap: 30px;
}

.footer__nav a {
  color: rgba(255, 255, 255, 0.7);
}

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

.footer__copyright {
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.8rem;
  margin-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  width: 100%;
  padding-top: 30px;
}

/* ==========================================================================
   ページ別スタイル
   ========================================================================== */

/* --- A. トップページ (index.html) --- */
.hero {
  height: 100vh;
  position: relative;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  color: #fff;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg-overlay);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1.2s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

.hero__subtitle {
  font-family: var(--font-en);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.2em;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.hero__title {
  font-size: 3rem;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.05em;
  margin-bottom: 30px;
}

.hero__desc {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 40px;
}

.hero__btn {
  border: 1px solid #fff;
  background: transparent;
  color: #fff;
}

.hero__btn:hover {
  background-color: #fff;
  color: var(--color-primary);
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 80px;
  align-items: center;
}

.about__img-wrapper {
  position: relative;
}

.about__img-wrapper::after {
  content: '';
  position: absolute;
  top: 20px;
  left: -20px;
  width: 100%;
  height: 100%;
  border: 2px solid var(--color-accent);
  z-index: -1;
  transition: var(--transition-smooth);
}

.about__img-wrapper:hover::after {
  transform: translate(5px, -5px);
}

.about__text h3 {
  font-size: 1.6rem;
  font-weight: 500;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}

.about__text p {
  color: var(--color-secondary);
  margin-bottom: 30px;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 40px;
}

.feature-card {
  background-color: var(--bg-primary);
  padding: 40px 30px;
  border: 1px solid var(--border-color);
  transition: var(--transition-smooth);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.feature-card__icon {
  font-size: 2.5rem;
  color: var(--color-accent);
  margin-bottom: 24px;
}

.feature-card__title {
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 16px;
}

.feature-card__desc {
  font-size: 0.95rem;
  color: var(--color-secondary);
}

/* --- B. ギャラリーページ (gallery/index.html) --- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  cursor: pointer;
  border: 1px solid var(--border-color);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.gallery-item__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(31, 36, 33, 0.75);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: var(--transition-smooth);
  padding: 20px;
  color: #fff;
}

.gallery-item:hover img {
  transform: scale(1.08);
}

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

.gallery-item__title {
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 8px;
  transform: translateY(15px);
  transition: var(--transition-smooth);
}

.gallery-item__tag {
  font-family: var(--font-en);
  font-size: 0.8rem;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  transform: translateY(15px);
  transition: var(--transition-smooth);
  transition-delay: 0.05s;
}

.gallery-item:hover .gallery-item__title,
.gallery-item:hover .gallery-item__tag {
  transform: translateY(0);
}

/* ライトボックス (Lightbox) */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(17, 20, 18, 0.95);
  z-index: 2000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.lightbox.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox__content {
  max-width: 85%;
  max-height: 80%;
  position: relative;
  transform: scale(0.95);
  transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.lightbox.active .lightbox__content {
  transform: scale(1);
}

.lightbox__img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.lightbox__caption {
  color: rgba(255, 255, 255, 0.8);
  text-align: center;
  margin-top: 15px;
  font-size: 1rem;
}

.lightbox__close {
  position: absolute;
  top: -40px;
  right: 0;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  background: none;
  border: none;
  transition: var(--transition-fast);
}

.lightbox__close:hover {
  color: var(--color-accent);
}

/* --- C. 会社情報ページ (aboutus/index.html) --- */
.about-sections {
  display: flex;
  flex-direction: column;
  gap: 120px;
}

.info-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 80px;
  align-items: start;
}

/* テーブルスタイル */
.info-table {
  width: 100%;
  border-collapse: collapse;
}

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

.info-table th, .info-table td {
  padding: 24px 16px;
  text-align: left;
}

.info-table th {
  font-size: 1rem;
  font-weight: 600;
  width: 250px;
  color: var(--color-primary);
  vertical-align: top;
}

.info-table td {
  font-size: 0.95rem;
  color: var(--color-secondary);
}

/* お問い合わせ・アクセスカード */
.contact-card {
  background-color: var(--bg-secondary);
  padding: 40px;
  border: 1px solid var(--border-color);
}

.contact-card h3 {
  font-size: 1.4rem;
  font-weight: 500;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 12px;
}

.contact-card h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: var(--color-accent);
}

.contact-phone {
  font-family: var(--font-en);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 20px;
  display: block;
}

.contact-card p {
  font-size: 0.9rem;
  color: var(--color-secondary);
  margin-bottom: 15px;
}

/* ロゴのアライメント */
.logo-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 15px;
}

.logo-item {
  display: flex;
  align-items: center;
  gap: 20px;
  background: #fff;
  padding: 12px 20px;
  border: 1px solid var(--border-color);
}

.logo-item span {
  font-size: 0.85rem;
  color: var(--color-secondary);
}

/* 沿革タイムライン */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 20px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 30px;
  height: 100%;
  width: 2px;
  background-color: var(--border-color);
}

.timeline-item {
  position: relative;
  margin-bottom: 50px;
  padding-left: 70px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-marker {
  position: absolute;
  top: 6px;
  left: 21px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: #fff;
  border: 4px solid var(--color-accent);
  z-index: 2;
  transition: var(--transition-fast);
}

.timeline-item:hover .timeline-marker {
  background-color: var(--color-accent);
  transform: scale(1.2);
}

.timeline-date {
  font-family: var(--font-en);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.timeline-content h3 {
  font-size: 1.15rem;
  font-weight: 500;
  margin-bottom: 6px;
}

.timeline-content p {
  font-size: 0.95rem;
  color: var(--color-secondary);
}


/* ==========================================================================
   アニメーション
   ========================================================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}


/* ==========================================================================
   レスポンシブ (メディアクエリ)
   ========================================================================== */
@media (max-width: 992px) {
  :root {
    --header-height: 70px;
  }
  
  .section {
    padding: 80px 0;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }
  
  .about__img-wrapper {
    max-width: 600px;
    margin: 0 auto;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .info-grid {
    grid-template-columns: 1fr;
    gap: 60px;
  }
  
  .info-table th {
    width: 180px;
  }
}

@media (max-width: 768px) {
  .hero__title {
    font-size: 2.2rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  
  /* モバイルヘッダーメニュー */
  .menu-toggle {
    display: flex;
  }
  
  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background-color: var(--bg-primary);
    z-index: 999;
    padding: 40px;
    transform: translateX(100%);
    transition: var(--transition-smooth);
    border-top: 1px solid var(--border-color);
  }
  
  .nav.active {
    transform: translateX(0);
  }
  
  .nav__list {
    flex-direction: column;
    gap: 30px;
    align-items: center;
  }
  
  .nav__link {
    font-size: 1.2rem;
  }
  
  /* ハンバーガーアニメーション */
  .menu-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }
  
  .info-table tr {
    display: flex;
    flex-direction: column;
  }
  
  .info-table th, .info-table td {
    padding: 12px 0;
  }
  
  .info-table th {
    width: 100%;
    padding-bottom: 4px;
  }
}