/* ベース設定 */
:root {
  --color-bg-primary: #000000;
  --color-bg-secondary: #111111;
  --color-accent-1: #00f7ff;
  --color-accent-2: #bc13fe;
  --color-accent-3: #39ff14;
  --color-accent-4: #ffd700;
  --color-text: #ffffff;
  --gradient-primary: linear-gradient(45deg, var(--color-accent-1), var(--color-accent-2));
  --gradient-secondary: linear-gradient(45deg, var(--color-accent-2), var(--color-accent-3));
  --neon-shadow: 0 0 10px var(--color-accent-1), 0 0 20px var(--color-accent-1);
  --transition-smooth: all 0.3s ease-in-out;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--color-bg-primary);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Arial Black', Helvetica, sans-serif;
  font-weight: bold;
  margin-bottom: 1rem;
}

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

ul {
  list-style-type: none;
}

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

section {
  padding: 5rem 0;
  position: relative;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  position: relative;
  display: inline-block;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  width: 100%;
}

.section-title::after {
  content: '';
  display: block;
  width: 100px;
  height: 3px;
  background: var(--gradient-primary);
  margin: 1rem auto;
}

/* ボタンスタイル */
.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  border-radius: 30px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: a 1px;
  transition: var(--transition-smooth);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  z-index: 1;
  text-align: center;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-text);
  box-shadow: 0 4px 15px rgba(0, 247, 255, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-accent-1);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 247, 255, 0.5);
}

.btn-secondary:hover {
  background: var(--color-accent-1);
  color: var(--color-bg-primary);
  box-shadow: 0 0 15px var(--color-accent-1);
}

/* ヘッダースタイル */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1rem 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo h1 {
  font-size: 1.8rem;
  margin-bottom: 0;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 5px rgba(0, 247, 255, 0.3);
}

.nav ul {
  display: flex;
  gap: 1.5rem;
}

.nav a {
  font-weight: 600;
  position: relative;
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition-smooth);
}

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

.menu-toggle {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
}

/* フローティングボタン */
.floating-buttons {
  position: fixed;
  right: 2rem;
  bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  z-index: 900;
}

.btn-float {
  padding: 0.8rem 1.5rem;
  border-radius: 30px;
  font-weight: bold;
  text-align: center;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.btn-experience {
  background: var(--gradient-primary);
  color: var(--color-text);
}

.btn-line {
  background-color: #06c755;
  color: #fff;
}

.btn-float:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
}

/* ヒーローセクション */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background-color: var(--color-bg-primary);
}

.slideshow-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center; /* 垂直方向の中央揃え */
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  background-size: cover;
  background-position: center;
  display: flex; /* フレックスボックスとして表示 */
  align-items: center; /* 垂直方向の中央揃え */
}

.slide:nth-child(1) {
  background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../img/hero1.jpg');
}

.slide:nth-child(2) {
  background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../img/hero2.jpg');
}

.slide:nth-child(3) {
  background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../img/hero3.jpg');
}

.slide.showing {
  opacity: 1;
}

.slide-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 2rem;
  transform: translateY(15vh); /* コンテンツを下に移動 */
}

.subtitle {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  letter-spacing: 2px;
  color: var(--color-accent-1);
  text-shadow: 0 0 10px var(--color-accent-1);
}

.hero .title {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 10px rgba(0, 247, 255, 0.3);
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* 5要素統合メソッドセクション */
.method {
    background-color: var(--color-bg-secondary);
    position: relative;
    overflow: hidden;
    padding: 6rem 0;
  }
  
  .method-slideshow .slide:nth-child(1) {
    background-image: linear-gradient(rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.8)), url('../img/method1.jpg');
  }
  
  .method-slideshow .slide:nth-child(2) {
    background-image: linear-gradient(rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.8)), url('../img/method2.jpg');
  }
  
  .method-slideshow .slide:nth-child(3) {
    background-image: linear-gradient(rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.8)), url('../img/method3.jpg');
  }
  
  .method-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
  }
  
  .method-card {
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition-smooth);
    position: relative;
    z-index: 2;
    border: 1px solid transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    min-height: 250px;
  }
  
  .method-card:hover {
    border-color: var(--color-accent-1);
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 247, 255, 0.2);
  }
  
  .method-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--color-accent-1);
    background: rgba(0, 0, 0, 0.3);
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 2px solid var(--color-accent-1);
    box-shadow: 0 0 15px rgba(0, 247, 255, 0.3);
    transition: var(--transition-smooth);
  }
  
  .method-card:hover .method-icon {
    background: var(--gradient-primary);
    color: var(--color-text);
    transform: scale(1.1);
  }
  
  .method-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-accent-1);
  }
  
  .method-details {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 15px;
    border: 1px solid var(--color-accent-1);
    position: relative;
    z-index: 2;
  }
  
  .method-details p {
    font-size: 1.1rem;
    line-height: 1.8;
  }
  
  @media (max-width: 1199px) {
    .method-grid {
      grid-template-columns: repeat(3, 1fr);
    }
    
    .method-grid .method-card:nth-child(4),
    .method-grid .method-card:nth-child(5) {
      grid-column: span 1;
    }
  }
  
  @media (max-width: 767px) {
    .method-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (max-width: 575px) {
    .method-grid {
      grid-template-columns: 1fr;
    }
  }

/* トレーニングの説明セクション */
.about {
  background-color: var(--color-bg-primary);
  padding: 6rem 0;
}

.about-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.training-cards {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-bottom: 3rem;
  width: 100%;
}

.training-card {
  background-color: var(--color-bg-secondary);
  border-radius: 15px;
  overflow: hidden;
  transition: var(--transition-smooth);
  border: 1px solid transparent;
  flex: 1;
  max-width: 450px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-bottom: 2rem;
}

.training-card:hover {
  border-color: var(--color-accent-1);
  transform: translateY(-10px);
  box-shadow: 0 10px 30px rgba(0, 247, 255, 0.2);
}

.video-container {
  position: relative;
  width: 100%;
  height: 250px;
  overflow: hidden;
  cursor: pointer;
}

.video-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.training-card:hover .video-thumb {
  transform: scale(1.05);
}

.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 70px;
  height: 70px;
  background: rgba(0, 0, 0, 0.7);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
  border: 2px solid var(--color-accent-1);
}

.play-button i {
  font-size: 1.8rem;
  color: var(--color-accent-1);
  transition: var(--transition-smooth);
}

.video-container:hover .play-button {
  background: var(--gradient-primary);
  transform: translate(-50%, -50%) scale(1.1);
}

.video-container:hover .play-button i {
  color: var(--color-text);
}

.training-card h3 {
  margin: 1.5rem 0 1rem;
  color: var(--color-accent-1);
  font-size: 1.8rem;
}

.training-card p {
  padding: 0 1.5rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.about-description {
  background-color: var(--color-bg-secondary);
  border-radius: 15px;
  padding: 2.5rem;
  max-width: 900px;
  text-align: center;
  border: 1px solid var(--color-accent-1);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  position: relative;
}

.about-description::before,
.about-description::after {
  content: '';
  position: absolute;
  width: 100px;
  height: 100px;
  background: var(--gradient-primary);
  opacity: 0.2;
  border-radius: 50%;
  z-index: 0;
}

.about-description::before {
  top: -30px;
  left: -30px;
}

.about-description::after {
  bottom: -30px;
  right: -30px;
}

.about-description p {
  position: relative;
  z-index: 1;
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.about-description p:last-child {
  margin-bottom: 0;
}

@media (max-width: 991px) {
  .training-cards {
    flex-direction: column;
    align-items: center;
    gap: 2rem;
  }
  
  .training-card {
    max-width: 100%;
    width: 100%;
  }
}

/* 対象別プログラムセクション */
.programs {
  background-color: var(--color-bg-secondary);
  padding: 6rem 0;
}

.programs-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3rem;
}

.program-card {
  display: flex;
  background: linear-gradient(145deg, var(--color-bg-primary), var(--color-bg-secondary));
  border-radius: 15px;
  overflow: hidden;
  max-width: 1000px;
  width: 100%;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  transition: var(--transition-smooth);
  border: 1px solid transparent;
}

.program-card:hover {
  transform: translateY(-10px);
  border-color: var(--color-accent-1);
  box-shadow: 0 15px 40px rgba(0, 247, 255, 0.2);
}

.program-image {
  flex: 1;
  min-width: 40%;
  position: relative;
  overflow: hidden;
}

.program-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.program-card:hover .program-image img {
  transform: scale(1.05);
}

.program-content {
  flex: 1.5;
  padding: 3rem;
  display: flex;
  flex-direction: column;
}

.program-title {
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.program-catchphrase {
  font-size: 1.3rem;
  font-style: italic;
  color: var(--color-accent-1);
  margin-bottom: 1.5rem;
}

.program-target {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.tag {
  background-color: rgba(0, 247, 255, 0.1);
  padding: 0.25rem 0.8rem;
  border-radius: 20px;
  font-size: 0.9rem;
  border: 1px solid var(--color-accent-1);
  transition: var(--transition-smooth);
}

.program-card:hover .tag {
  background-color: rgba(0, 247, 255, 0.2);
}

.program-description {
  margin-bottom: 2rem;
  line-height: 1.8;
  flex-grow: 1;
}

.program-card .btn-primary {
  align-self: flex-start;
}

@media (max-width: 991px) {
  .program-card {
    flex-direction: column;
  }
  
  .program-image {
    height: 300px;
  }
}

@media (max-width: 767px) {
  .program-content {
    padding: 2rem;
  }
  
  .program-title {
    font-size: 1.8rem;
  }
}

/* 料金プログラムセクション */
.pricing {
  background-color: var(--color-bg-primary);
  padding: 6rem 0;
}

.tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.tab {
  padding: 0.8rem 1.5rem;
  background-color: var(--color-bg-secondary);
  border: none;
  border-radius: 30px;
  color: var(--color-text);
  font-weight: bold;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.tab:hover {
  background-color: rgba(0, 247, 255, 0.2);
}

.tab.active {
  background: var(--gradient-primary);
  box-shadow: 0 0 15px rgba(0, 247, 255, 0.3);
}

.tab-content {
  position: relative;
  min-height: 400px;
}

.tab-pane {
  position: absolute;
  width: 100%;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
  left: 0;
  right: 0;
}

.tab-pane.active {
  opacity: 1;
  visibility: visible;
  position: relative;
}

.pricing-cards {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.pricing-card {
  background-color: var(--color-bg-secondary);
  border-radius: 15px;
  padding: 2.5rem;
  text-align: center;
  transition: var(--transition-smooth);
  border: 1px solid transparent;
  position: relative;
  width: 100%;
  max-width: 350px;
  display: flex;
  flex-direction: column;
}

.pricing-card:hover {
  transform: translateY(-10px);
  border-color: var(--color-accent-1);
  box-shadow: 0 10px 30px rgba(0, 247, 255, 0.2);
}

.pricing-card.featured {
  background: linear-gradient(145deg, var(--color-bg-secondary), var(--color-bg-primary));
  border: 2px solid var(--color-accent-2);
  box-shadow: 0 10px 30px rgba(188, 19, 254, 0.2);
}

.pricing-card.featured::before {
  content: 'おすすめ';
  position: absolute;
  top: -10px;
  right: 20px;
  background: var(--gradient-primary);
  padding: 0.25rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: bold;
}

.pricing-icon {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  color: var(--color-accent-1);
}

.pricing-card.featured .pricing-icon {
  color: var(--color-accent-2);
}

.pricing-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.price {
  font-size: 2.2rem;
  font-weight: bold;
  margin-bottom: 2rem;
  color: var(--color-accent-1);
}

.pricing-card.featured .price {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.price span {
  font-size: 1rem;
  font-weight: normal;
}

.pricing-card ul {
  margin-bottom: 2.5rem;
  text-align: left;
  flex-grow: 1;
}

.pricing-card ul li {
  margin-bottom: 0.8rem;
  position: relative;
  padding-left: 1.5rem;
}

.pricing-card ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent-1);
}

.pricing-card.featured ul li::before {
  color: var(--color-accent-2);
}

@media (max-width: 1199px) {
  .pricing-cards {
    justify-content: center;
  }
}

@media (max-width: 991px) {
  .pricing-card {
    max-width: 320px;
  }
}

@media (max-width: 767px) {
  .pricing-card {
    max-width: 100%;
  }
  
  .tabs {
    flex-direction: column;
    align-items: center;
  }
  
  .tab {
    width: 100%;
    max-width: 300px;
    text-align: center;
  }
}

/* 導入事例セクション */
.cases {
  background-color: var(--color-bg-secondary);
}

.cases-carousel {
  position: relative;
  overflow: hidden;
  padding: 2rem 0;
}

.cases-track {
  display: flex;
  transition: transform 0.5s ease;
}

.case-card {
  min-width: calc(33.333% - 2rem);
  margin: 0 1rem;
  background-color: var(--color-bg-primary);
  border-radius: 10px;
  overflow: hidden;
  transition: var(--transition-smooth);
  border: 1px solid transparent;
}

.case-card:hover {
  transform: translateY(-10px);
  border-color: var(--color-accent-1);
  box-shadow: 0 10px 30px rgba(0, 247, 255, 0.2);
}

.case-image {
  height: 200px;
  overflow: hidden;
}

.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.case-card:hover .case-image img {
  transform: scale(1.05);
}

.case-content {
  padding: 1.5rem;
}

.case-content h3 {
  font-size: 1.3rem;
  margin-bottom: 0.8rem;
  color: var(--color-accent-1);
}

.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(0, 0, 0, 0.7);
  color: var(--color-accent-1);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  z-index: 2;
}

.carousel-arrow:hover {
  background-color: var(--color-accent-1);
  color: var(--color-bg-primary);
}

.carousel-arrow.prev {
  left: 1rem;
}

.carousel-arrow.next {
  right: 1rem;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
  gap: 0.5rem;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-accent-1);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.dot.active {
  background-color: var(--color-accent-1);
  box-shadow: 0 0 5px var(--color-accent-1);
}

/* 体験者の声セクション */
.testimonials {
  background-color: var(--color-bg-primary);
}

.testimonials-carousel {
  position: relative;
  overflow: hidden;
  padding: 2rem 0;
}

.testimonials-track {
  display: flex;
  transition: transform 0.5s ease;
}

.testimonial-slide {
  min-width: 100%;
  display: flex;
  gap: 2rem;
}

.testimonial-card {
  flex: 1;
  background-color: var(--color-bg-secondary);
  border-radius: 10px;
  overflow: hidden;
  transition: var(--transition-smooth);
  border: 1px solid transparent;
}

.testimonial-card:hover {
  border-color: var(--color-accent-1);
  box-shadow: 0 10px 30px rgba(0, 247, 255, 0.2);
}

.testimonial-content {
  padding: 2rem;
  position: relative;
}

.testimonial-content i {
  font-size: 2rem;
  color: var(--color-accent-1);
  opacity: 0.3;
  position: absolute;
  top: 1rem;
  left: 1rem;
}

.testimonial-content p {
  margin-bottom: 1.5rem;
  margin-left: 1rem;
  position: relative;
  z-index: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.testimonial-author img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-accent-1);
}

.testimonial-author h4 {
  margin-bottom: 0.2rem;
  color: var(--color-accent-1);
}

.testimonial-author p {
  font-size: 0.9rem;
  margin-bottom: 0;
  margin-left: 0;
}

.testimonial-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(0, 0, 0, 0.7);
  color: var(--color-accent-1);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  z-index: 2;
}

.testimonial-arrow:hover {
  background-color: var(--color-accent-1);
  color: var(--color-bg-primary);
}

.testimonial-arrow.prev {
  left: 1rem;
}

.testimonial-arrow.next {
  right: 1rem;
}

.testimonial-dots {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
  gap: 0.5rem;
}

/* トレーナー紹介セクション */
.trainers {
  background-color: var(--color-bg-secondary);
}

.trainers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* 現在2名の場合の整列 */
.trainer-card:nth-child(1) {
  grid-column: 2 / 3;
}
.trainer-card:nth-child(2) {
  grid-column: 3 / 4;
}

/* 3名の場合の整列 */
.trainers-grid.three-trainers .trainer-card:nth-child(1) {
  grid-column: 1 / 2;
}
.trainers-grid.three-trainers .trainer-card:nth-child(2) {
  grid-column: 2 / 3;
}
.trainers-grid.three-trainers .trainer-card:nth-child(3) {
  grid-column: 3 / 4;
}

/* 4名の場合の整列 */
.trainers-grid.four-trainers .trainer-card:nth-child(1) {
  grid-column: 1 / 2;
}
.trainers-grid.four-trainers .trainer-card:nth-child(2) {
  grid-column: 2 / 3;
}
.trainers-grid.four-trainers .trainer-card:nth-child(3) {
  grid-column: 3 / 4;
}
.trainers-grid.four-trainers .trainer-card:nth-child(4) {
  grid-column: 4 / 5;
}

.trainer-card {
  perspective: 1000px;
  height: 400px;
}

.trainer-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.8s;
  transform-style: preserve-3d;
}

.trainer-card:hover .trainer-card-inner {
  transform: rotateY(180deg);
}

.trainer-card-front, .trainer-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 10px;
  overflow: hidden;
}

.trainer-card-front {
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-accent-1);
}

.trainer-card-front img {
  width: 100%;
  height: 80%;
  object-fit: cover;
}

.trainer-card-front h3 {
  padding: 1rem;
  text-align: center;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.trainer-card-back {
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-accent-2);
  transform: rotateY(180deg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.trainer-card-back h3 {
  text-align: center;
  margin-bottom: 0.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.trainer-title {
  text-align: center;
  font-weight: bold;
  margin-bottom: 1.5rem;
  color: var(--color-accent-1);
}

.trainer-certifications {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.trainer-certifications span {
  background-color: var(--color-bg-secondary);
  padding: 0.25rem 0.8rem;
  border-radius: 20px;
  font-size: 0.9rem;
  border: 1px solid var(--color-accent-1);
}

/* レスポンシブ対応 */
@media (max-width: 1199px) {
  .trainers-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  /* 2名の場合 (タブレット) */
  .trainer-card:nth-child(1) {
    grid-column: 1 / 2;
  }
  .trainer-card:nth-child(2) {
    grid-column: 2 / 3;
  }
  
  /* 3名の場合 (タブレット) */
  .trainers-grid.three-trainers .trainer-card:nth-child(1) {
    grid-column: 1 / 2;
  }
  .trainers-grid.three-trainers .trainer-card:nth-child(2) {
    grid-column: 2 / 3;
  }
  .trainers-grid.three-trainers .trainer-card:nth-child(3) {
    grid-column: 3 / 4;
  }
  
  /* 4名の場合 (タブレット - 2行2列) */
  .trainers-grid.four-trainers .trainer-card:nth-child(1) {
    grid-column: 1 / 2;
  }
  .trainers-grid.four-trainers .trainer-card:nth-child(2) {
    grid-column: 2 / 3;
  }
  .trainers-grid.four-trainers .trainer-card:nth-child(3) {
    grid-column: 3 / 4;
  }
  .trainers-grid.four-trainers .trainer-card:nth-child(4) {
    grid-column: 2 / 3;
    grid-row: 2;
  }
}

@media (max-width: 767px) {
  .trainers-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* 2名の場合 (モバイル) */
  .trainer-card:nth-child(1) {
    grid-column: 1 / 2;
  }
  .trainer-card:nth-child(2) {
    grid-column: 2 / 3;
  }
  
  /* 3名の場合 (モバイル - 2行) */
  .trainers-grid.three-trainers .trainer-card:nth-child(1) {
    grid-column: 1 / 2;
  }
  .trainers-grid.three-trainers .trainer-card:nth-child(2) {
    grid-column: 2 / 3;
  }
  .trainers-grid.three-trainers .trainer-card:nth-child(3) {
    grid-column: 1 / 3;
    justify-self: center;
    max-width: 280px;
  }
  
  /* 4名の場合 (モバイル - 2行2列) */
  .trainers-grid.four-trainers .trainer-card:nth-child(1) {
    grid-column: 1 / 2;
  }
  .trainers-grid.four-trainers .trainer-card:nth-child(2) {
    grid-column: 2 / 3;
  }
  .trainers-grid.four-trainers .trainer-card:nth-child(3) {
    grid-column: 1 / 2;
    grid-row: 2;
  }
  .trainers-grid.four-trainers .trainer-card:nth-child(4) {
    grid-column: 2 / 3;
    grid-row: 2;
  }
}

@media (max-width: 480px) {
  .trainers-grid {
    grid-template-columns: 1fr;
    max-width: 280px;
    margin: 0 auto;
  }
  
  /* すべてのカードを中央揃え (スマホ) */
  .trainer-card:nth-child(n),
  .trainers-grid.three-trainers .trainer-card:nth-child(n),
  .trainers-grid.four-trainers .trainer-card:nth-child(n) {
    grid-column: 1;
    grid-row: auto;
    justify-self: center;
    width: 100%;
  }
}

/* レスポンシブ対応 */
@media (max-width: 767px) {
  .trainers-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }
}

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

/* よくある質問セクション */
.faq {
  background-color: var(--color-bg-primary);
  padding: 6rem 0;
}

.accordion {
  max-width: 800px;
  margin: 0 auto;
}

.accordion-item {
  background-color: var(--color-bg-secondary);
  border-radius: 10px;
  margin-bottom: 1rem;
  overflow: hidden;
  border: 1px solid transparent;
  transition: all 0.3s ease;
}

.accordion-item:hover {
  border-color: var(--color-accent-1);
}

.accordion-item.active {
  border-color: var(--color-accent-1);
  box-shadow: 0 5px 15px rgba(0, 247, 255, 0.2);
}

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

.accordion-header h3 {
  margin-bottom: 0;
  font-size: 1.2rem;
}

.accordion-icon i {
  color: var(--color-accent-1);
  transition: transform 0.3s ease;
}

.accordion-item.active .accordion-icon i {
  transform: rotate(45deg);
}

.accordion-content {
  padding: 0 1.5rem 1.5rem 1.5rem;
}

.accordion-content p {
  margin: 0;
}

/* 体験会セクション */
.experience {
  background-color: var(--color-bg-secondary);
  padding: 6rem 0;
}

.experience-content {
  display: flex;
  justify-content: center;
  align-items: center;
}

.experience-card {
  display: flex;
  background: linear-gradient(145deg, var(--color-bg-primary), var(--color-bg-secondary));
  border-radius: 15px;
  overflow: hidden;
  max-width: 1000px;
  width: 100%;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  transition: var(--transition-smooth);
  border: 1px solid var(--color-accent-1);
}

.experience-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(0, 247, 255, 0.2);
}

.experience-details {
  flex: 1.5;
  padding: 3rem;
}

.experience-image {
  flex: 1;
  min-width: 40%;
  position: relative;
  overflow: hidden;
}

.experience-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.experience-card:hover .experience-image img {
  transform: scale(1.05);
}

.experience-details h3 {
  font-size: 2rem;
  margin-bottom: 2rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.experience-item {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.experience-item i {
  font-size: 1.8rem;
  color: var(--color-accent-1);
  min-width: 30px;
  text-align: center;
}

.experience-item h4 {
  margin-bottom: 0.5rem;
  color: var(--color-accent-1);
}

.experience-buttons {
  display: flex;
  gap: 1rem;
  margin-top: 2.5rem;
}

.btn-line-large {
  background-color: #06c755;
  color: #fff;
  padding: 0.8rem 1.5rem;
  border-radius: 30px;
  font-weight: bold;
  display: inline-block;
  transition: var(--transition-smooth);
  text-align: center;
}

.btn-line-large:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(6, 199, 85, 0.3);
}

@media (max-width: 991px) {
  .experience-card {
    flex-direction: column-reverse;
  }
  
  .experience-image {
    height: 300px;
  }
}

@media (max-width: 767px) {
  .experience-details {
    padding: 2rem;
  }
  
  .experience-details h3 {
    font-size: 1.8rem;
    text-align: center;
  }
  
  .experience-buttons {
    flex-direction: column;
  }
  
  .experience-buttons button,
  .experience-buttons a {
    width: 100%;
  }
}

/* お問い合わせセクション */
.contact {
  background-color: var(--color-bg-primary);
}

.contact-content {
  display: flex;
  gap: 3rem;
}

.contact-info {
  flex: 1;
}

.contact-form {
  flex: 1.5;
  background-color: var(--color-bg-secondary);
  padding: 2.5rem;
  border-radius: 10px;
  border: 1px solid var(--color-accent-1);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.contact-item i {
  font-size: 1.8rem;
  color: var(--color-accent-1);
}

.contact-item h3 {
  margin-bottom: 0.5rem;
  font-size: 1.3rem;
  color: var(--color-accent-1);
}

.contact-item .small {
  font-size: 0.9rem;
  opacity: 0.7;
}

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

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: bold;
}

input, select, textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-accent-1);
  border-radius: 5px;
  color: var(--color-text);
  transition: var(--transition-smooth);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  box-shadow: 0 0 10px rgba(0, 247, 255, 0.3);
}

/* モーダルウィンドウ */
.modal {
  display: none;
  position: fixed;
  z-index: 1100;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
}

.modal-content {
  background-color: var(--color-bg-secondary);
  margin: 5% auto;
  padding: 2.5rem;
  border-radius: 10px;
  width: 90%;
  max-width: 600px;
  border: 1px solid var(--color-accent-1);
  box-shadow: 0 10px 30px rgba(0, 247, 255, 0.2);
  position: relative;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  color: var(--color-accent-1);
  font-size: 1.8rem;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.modal-close:hover {
  color: var(--color-accent-2);
  transform: rotate(90deg);
}

.modal h2 {
  text-align: center;
  margin-bottom: 2rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.booking-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.booking-form .form-group:nth-child(5),
.booking-form .form-group:nth-child(6),
.booking-form .form-group:nth-child(7),
.booking-form button {
  grid-column: span 2;
}

/* フッター */
.footer {
  background-color: var(--color-bg-secondary);
  padding: 5rem 0 1rem;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-bottom: 3rem;
}

.footer-logo {
  flex: 1;
  min-width: 250px;
  margin-bottom: 2rem;
}

.footer-logo h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.footer-links {
  flex: 2;
  display: flex;
  justify-content: space-around;
}

.footer-column {
  margin-bottom: 2rem;
}

.footer-column h3 {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  color: var(--color-accent-1);
}

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

.footer-column ul li a:hover {
  color: var(--color-accent-1);
}

.footer-social {
  flex: 1;
  min-width: 250px;
}

.footer-social h3 {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  color: var(--color-accent-1);
}

.social-icons {
  display: flex;
  gap: 1rem;
}

.social-icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-bg-primary);
  border-radius: 50%;
  font-size: 1.2rem;
  transition: var(--transition-smooth);
}

.social-icons a:hover {
  background: var(--gradient-primary);
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 247, 255, 0.3);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* レスポンシブ対応 */
@media (max-width: 1199px) {
  .method-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .method-grid .method-card:nth-child(4),
  .method-grid .method-card:nth-child(5) {
    grid-column: span 1;
  }
  
  .trainers-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pricing-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  
  .pricing-card.featured {
    grid-column: span 2;
  }
}

@media (max-width: 991px) {
  .nav {
    display: none;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .training-types,
  .experience-content,
  .contact-content {
    grid-template-columns: 1fr;
    display: flex;
    flex-direction: column;
  }
  
  .program-card {
    flex-direction: column;
  }
  
  .program-image {
    height: 250px;
  }
  
  .case-card {
    min-width: calc(50% - 2rem);
  }
}

@media (max-width: 767px) {
  .hero .title {
    font-size: 3rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .method-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-cards {
    grid-template-columns: 1fr;
  }
  
  .pricing-card.featured {
    grid-column: auto;
  }
  
  .trainers-grid {
    grid-template-columns: 1fr;
  }
  
  .testimonial-slide {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .case-card {
    min-width: calc(100% - 2rem);
  }
  
  .cta-buttons,
  .tabs,
  .experience-buttons {
    flex-direction: column;
    width: 100%;
  }
  
  .cta-buttons a,
  .experience-buttons button,
  .experience-buttons a {
    width: 100%;
    text-align: center;
  }
  
  .booking-form {
    grid-template-columns: 1fr;
  }
  
  .booking-form .form-group:nth-child(n) {
    grid-column: span 1;
  }
}