/* リセットCSS */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 基本スタイル */
body {
  font-family: "Noto Sans JP", sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #fff;
}

html {
  scroll-behavior: smooth;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ヘッダー */
.header {
  background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

.navbar {
  padding: 1rem 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo h1 {
  color: #fff;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}

.tagline {
  color: #bdc3c7;
  font-size: 0.9rem;
  font-weight: 300;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-link {
  color: #fff;
  text-decoration: none;
  font-weight: 400;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: #3498db;
}

.nav-link::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background-color: #3498db;
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

/* ハンバーガーメニュー */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: #fff;
  margin: 3px 0;
  transition: 0.3s;
}

/* メインコンテンツ */
main {
  margin-top: 80px;
}

/* セクションタイトル */
.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 3rem;
  color: #2c3e50;
  position: relative;
}

.section-title::after {
  content: "";
  position: absolute;
  width: 100px;
  height: 4px;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #3498db, #2980b9);
  border-radius: 2px;
}

/* ヒーローセクション */
.hero {
  padding: 5rem 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  display: flex;
  align-items: center;
  min-height: 70vh;
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem 20px;
}

.hero-content {
  flex: 1;
  max-width: 600px;
}

.hero-title {
  font-size: 3rem;
  color: #2c3e50;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.3rem;
  color: #5a6c7d;
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  padding: 12px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  display: inline-block;
  text-align: center;
  border: 2px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, #3498db, #2980b9);
  color: white;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #2980b9, #21618c);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.btn-secondary {
  background: transparent;
  color: #2c3e50;
  border: 2px solid #2c3e50;
}

.btn-secondary:hover {
  background: #2c3e50;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(44, 62, 80, 0.3);
}

.hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-left: 3rem;
}

.hero-main-image {
  width: 100%;
  max-width: 450px;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  object-fit: cover;
  transition: all 0.3s ease-in-out;
}

.hero-main-image:hover {
  transform: scale(1.05);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

/* 会社概要セクション */
.about {
  padding: 5rem 0;
  background: #fff;
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-text h3 {
  color: #2c3e50;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.about-text p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  line-height: 1.8;
  color: #5a6c7d;
  text-align: left;
}

.company-info h3 {
  color: #2c3e50;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  background: #f8f9fa;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.info-table th,
.info-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid #dee2e6;
}

.info-table th {
  background: #2c3e50;
  color: white;
  font-weight: 500;
  width: 30%;
}

.info-table td {
  color: #5a6c7d;
}

.info-table tr:last-child th,
.info-table tr:last-child td {
  border-bottom: none;
}

/* 事業内容セクション */
.business {
  padding: 5rem 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
  gap: 3rem;
}

.business-card {
  background: white;
  padding: 2.5rem;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: center;
}

.business-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.card-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: linear-gradient(135deg, #3498db, #2980b9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-icon i {
  font-size: 2rem;
  color: white;
}

.business-card h3 {
  color: #2c3e50;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.business-card p {
  color: #5a6c7d;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.feature-list {
  list-style: none;
  text-align: left;
}

.feature-list li {
  padding: 0.5rem 0;
  color: #5a6c7d;
  position: relative;
  padding-left: 2rem;
}

.feature-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #27ae60;
  font-weight: bold;
}

/* 沿革セクション */
.history {
  padding: 5rem 0;
  background: white;
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::after {
  content: "";
  position: absolute;
  width: 4px;
  background: linear-gradient(135deg, #3498db, #2980b9);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -2px;
  border-radius: 2px;
}

.timeline-item {
  padding: 20px 40px;
  position: relative;
  background: inherit;
  width: 50%;
}

.timeline-item:nth-child(odd) {
  left: 0;
}

.timeline-item:nth-child(even) {
  left: 50%;
}

.timeline-marker {
  position: absolute;
  width: 20px;
  height: 20px;
  background: #3498db;
  border: 4px solid white;
  border-radius: 50%;
  top: 30px;
  z-index: 1;
  box-shadow: 0 0 0 4px #3498db;
}

.timeline-item:nth-child(odd) .timeline-marker {
  right: -10px;
}

.timeline-item:nth-child(even) .timeline-marker {
  left: -10px;
}

.timeline-content {
  background: white;
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  position: relative;
}

.timeline-item:nth-child(odd) .timeline-content::after {
  content: "";
  position: absolute;
  top: 30px;
  right: -10px;
  width: 0;
  height: 0;
  border-left: 10px solid white;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
}

.timeline-item:nth-child(even) .timeline-content::after {
  content: "";
  position: absolute;
  top: 30px;
  left: -10px;
  width: 0;
  height: 0;
  border-right: 10px solid white;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
}

.timeline-content h3 {
  color: #2c3e50;
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.timeline-content p {
  color: #5a6c7d;
  line-height: 1.6;
}

/* お問い合わせセクション */
.contact {
  padding: 5rem 0;
  background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
  color: white;
}

.contact .section-title {
  color: white;
}

.contact .section-title::after {
  background: linear-gradient(135deg, #3498db, #2980b9);
}

.contact-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.contact-info h3 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: #3498db;
}

.contact-info p {
  margin-bottom: 2rem;
  line-height: 1.8;
  color: #bdc3c7;
  text-align: left;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-align: left;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.contact-item i {
  color: #3498db;
  width: 20px;
}

/* お問い合わせメールアドレスの色調整 */
.contact-item a[href^="mailto"] {
  color: #f8f8f8;
  text-decoration: underline;
}
.contact-item a[href^="mailto"]:hover {
  color: #fff;
}

.contact-form {
  background: white;
  padding: 2.5rem;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: #2c3e50;
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 2px solid #e9ecef;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #3498db;
}

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

/* お問い合わせ注意書き（背景なし） */
.contact-warning {
  color: #fa2f2f !important;
  border-radius: 6px;
  padding: 8px 12px;
  margin-bottom: 1rem;
  text-align: center;
  letter-spacing: 0.03em;
}

/* フッター */
.footer {
  background: #1a1a1a;
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-info h3 {
  color: #3498db;
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.footer-info p {
  color: #bdc3c7;
  line-height: 1.6;
}

.footer-links h4,
.footer-contact h4 {
  color: #3498db;
  margin-bottom: 1rem;
}

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

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: #bdc3c7;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: #3498db;
}

.footer-contact p {
  color: #bdc3c7;
  margin-bottom: 0.5rem;
}

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: 2rem;
  text-align: center;
}

.footer-bottom p {
  color: #7f8c8d;
}

/* 製品紹介ページ */
.products {
  padding: 4rem 2rem;
  text-align: center;
}

.section-subtitle {
  max-width: 600px;
  margin: 0 auto 2rem auto;
  color: #555;
}

.product-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

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

.product-item img.thumbnail {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid #ddd;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-item img.thumbnail:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.product-item p {
  margin-top: 0.5rem;
  font-size: 1rem;
  color: #333;
  font-weight: 500;
}

/* モーダル */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  padding-top: 60px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.9);
}

.modal-content {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 700px;
}

#modal-caption {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 700px;
  text-align: center;
  color: #ccc;
  padding: 10px 0;
  height: 150px;
}

.modal-content,
#modal-caption {
  animation-name: zoom;
  animation-duration: 0.6s;
}

@keyframes zoom {
  from {
    transform: scale(0);
  }
  to {
    transform: scale(1);
  }
}

.modal-close {
  position: absolute;
  top: 15px;
  right: 35px;
  color: #f1f1f1;
  font-size: 40px;
  font-weight: bold;
  transition: 0.3s;
  cursor: pointer;
}

.modal-close:hover,
.modal-close:focus {
  color: #bbb;
  text-decoration: none;
}

/* ギャラリーページのヘッダーロゴのスタイル調整 */
.gallery-page .header .logo h1 a {
  color: #f0f0f0;
  text-decoration: none;
}
.gallery-page .header .logo .tagline {
  color: #f0f0f0;
}

/* タイトルGIF画像追加 */
.gallery-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 1rem;
}

.catalog-gif {
  width: 250px;
  height: auto;
  margin-bottom: 1rem;
}

.gallery-header .section-title {
  margin-bottom: 0;
}

/* 電話番号画像のスタイル */
.phone-image {
  display: block;
  background: #fff;
  padding: 8px 16px 0px 16px;
  border-radius: 8px;
  margin: 8px 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  max-width: 180px;
}

/* リスポンシブデザイン */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 80px;
    flex-direction: column;
    background-color: #2c3e50;
    width: 100%;
    text-align: center;
    transition: 0.3s;
    padding: 2rem 0;
    gap: 1rem;
  }

  .nav-menu.active {
    left: 0;
  }

  .hero {
    flex-direction: column;
    text-align: center;
    padding: 3rem 20px;
  }

  .hero-image {
    margin: 3rem 0 0 0;
  }

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

  .hero-subtitle {
    font-size: 1.1rem;
  }

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

  .business-card {
    margin: 0 10px;
  }

  .timeline::after {
    left: 30px;
  }

  .timeline-item {
    width: 100%;
    padding-left: 70px;
    padding-right: 20px;
  }

  .timeline-item:nth-child(odd),
  .timeline-item:nth-child(even) {
    left: 0;
  }

  .timeline-marker {
    left: 20px !important;
    right: auto !important;
  }

  .timeline-content::after {
    display: none;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }

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

  .image-placeholder {
    width: 250px;
    height: 250px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.8rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
  }

  .business-card {
    padding: 1.5rem;
    margin: 0 5px;
  }

  .contact-form {
    padding: 1.5rem;
  }

  .image-placeholder {
    width: 200px;
    height: 200px;
  }

  .image-placeholder i {
    font-size: 3rem;
  }
}