/* 広告実績ページ専用CSS */

/* ヒーローセクション */
.ad-results-hero {
  padding: 120px 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* SVG背景アニメーション */
.hero-bg-svg {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50%;
  opacity: 0.3;
  z-index: 1;
}

.wave {
  animation: waveMove 8s ease-in-out infinite;
}

.wave1 {
  animation-delay: 0s;
}

.wave2 {
  animation-delay: -4s;
}

@keyframes waveMove {
  0%, 100% {
    transform: translateX(0) translateY(0);
  }
  50% {
    transform: translateX(-25px) translateY(-10px);
  }
}

/* 浮遊する円 */
.floating-circles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 1;
}

.circle {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  animation: float 20s infinite ease-in-out;
}

.circle1 {
  width: 80px;
  height: 80px;
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.circle2 {
  width: 120px;
  height: 120px;
  top: 60%;
  left: 80%;
  animation-delay: -5s;
}

.circle3 {
  width: 60px;
  height: 60px;
  top: 30%;
  left: 70%;
  animation-delay: -10s;
}

.circle4 {
  width: 100px;
  height: 100px;
  top: 70%;
  left: 20%;
  animation-delay: -15s;
}

.circle5 {
  width: 90px;
  height: 90px;
  top: 20%;
  left: 50%;
  animation-delay: -7s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) translateX(0) scale(1);
    opacity: 0.3;
  }
  25% {
    transform: translateY(-30px) translateX(20px) scale(1.1);
    opacity: 0.5;
  }
  50% {
    transform: translateY(-50px) translateX(-20px) scale(0.9);
    opacity: 0.3;
  }
  75% {
    transform: translateY(-30px) translateX(30px) scale(1.05);
    opacity: 0.4;
  }
}

.ad-results-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 2;
}

.ad-results-title {
  font-size: 4rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 30px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.ad-results-subtitle {
  font-size: 1.3rem;
  font-weight: 400;
  color: #ffffff;
  margin: 0;
  line-height: 1.8;
}

/* 実績セクション */
.case-study-section {
  padding: 80px 0;
  background: #ffffff;
}

.case-study-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 50px;
}

.filter-btn {
  padding: 12px 30px;
  background: #ffffff;
  border: 2px solid #e2e8f0;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #4a5568;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.filter-btn:hover {
  border-color: #667eea;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.filter-btn.active {
  background: #ffffff;
  border: 2px solid #667eea;
  color: #667eea;
  font-weight: 700;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
  position: relative;
}

.filter-btn.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 3px;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
  border-radius: 2px;
}

/* 実績カードグリッド */
.case-study-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 50px;
}

@media (max-width: 1024px) {
  .case-study-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .case-study-grid {
    grid-template-columns: 1fr;
  }
}

.case-card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
  position: relative;
}

.case-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(102, 126, 234, 0.15);
  border-color: #667eea;
}

.case-card-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.case-card-thumb {
  position: relative;
  width: 100%;
  padding-top: 66.67%; /* 3:2 aspect ratio */
  overflow: hidden;
  background: #f8f9fa;
}

.case-card-thumb img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.case-card:hover .case-card-thumb img {
  transform: scale(1.1);
}

.case-card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.9) 0%, rgba(118, 75, 162, 0.9) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.case-card:hover .case-card-overlay {
  opacity: 1;
}

.view-detail {
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}

.view-detail i {
  transition: transform 0.3s ease;
}

.case-card:hover .view-detail i {
  transform: translateX(5px);
}

.case-card-body {
  padding: 20px;
}

.case-tag {
  display: inline-block;
  padding: 6px 16px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 12px;
}

.case-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #2d3748;
  margin-bottom: 10px;
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.case-date {
  font-size: 0.9rem;
  color: #718096;
  display: flex;
  align-items: center;
  gap: 6px;
}

.case-date i {
  color: #667eea;
}

/* More Viewボタン */
.more-button-container {
  text-align: center;
  margin-top: 50px;
}

.more-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 40px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #ffffff;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.more-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4);
}

.more-button i {
  transition: transform 0.3s ease;
}

.more-button:hover i {
  transform: translateY(3px);
}

/* 投稿なしメッセージ */
.no-posts {
  text-align: center;
  font-size: 1.1rem;
  color: #718096;
  padding: 60px 20px;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .ad-results-hero {
    padding: 80px 0;
  }
  
  .ad-results-title {
    font-size: 2.5rem;
  }
  
  .ad-results-subtitle {
    font-size: 1.1rem;
  }
  
  .case-study-section {
    padding: 60px 0;
  }
  
  .case-study-filter {
    gap: 10px;
  }
  
  .filter-btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
}