/* 共通スタイル */
#app {
  background: #FFC300;
  min-height: 100vh;
}

.header-toolbar {
  background: rgba(255, 195, 0, 0.95) !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1) !important;
  backdrop-filter: blur(10px);
}

/* ヒーローセクション - フルスクリーン */
.hero-section {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-bottom: 0;
}

.hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  animation: zoomIn 20s ease-out infinite alternate;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(0, 48, 73, 0.4) 0%,
    rgba(0, 48, 73, 0.6) 50%,
    rgba(0, 48, 73, 0.8) 100%
  );
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  padding: 0 20px;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-message {
  margin-bottom: 60px;
  opacity: 0;
  animation: fadeInUp 1.2s ease-out forwards;
  animation-delay: 0.5s;
}

.message-text {
  color: white;
  font-size: 2.8rem;
  font-weight: 400;
  text-align: center;
  line-height: 1.8;
  letter-spacing: 0.05em;
  padding: 0 20px;
  position: relative;
}

.message-text::before,
.message-text::after {
  content: '';
  display: block;
  width: 80px;
  height: 3px;
  background: #FFC300;
  margin: 40px auto;
}

.hero-buttons {
  text-align: center;
  opacity: 0;
  animation: fadeInUp 1s ease-out forwards;
  animation-delay: 1s;
}

.hero-btn {
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 1) !important;
  color: #003049 !important;
  transition: all 0.3s ease !important;
  font-weight: 600 !important;
  padding: 12px 32px !important;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2) !important;
}

.hero-btn:hover {
  background: white !important;
  border-color: #FFC300 !important;
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3) !important;
}

.hero-btn-text {
  color: #003049 !important;
  font-weight: 600;
}

.hero-btn .v-icon {
  color: #003049 !important;
}

/* スクロールダウンインジケーター */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  right: 40px;
  z-index: 4;
  opacity: 0;
  animation: fadeIn 1s ease-out forwards, bounce 2s ease-in-out infinite;
  animation-delay: 1.5s, 2s;
  cursor: pointer;
  transition: opacity 0.3s ease;
}

.scroll-indicator:hover {
  opacity: 1 !important;
}

.scroll-indicator-icon {
  color: rgba(255, 255, 255, 0.6);
  font-size: 3rem;
  display: block;
  cursor: pointer;
  transition: color 0.3s ease;
}

.scroll-indicator:hover .scroll-indicator-icon {
  color: rgba(255, 255, 255, 0.9);
}

.scroll-indicator-text {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-top: 8px;
  text-align: center;
  cursor: pointer;
  transition: color 0.3s ease;
}

.scroll-indicator:hover .scroll-indicator-text {
  color: rgba(255, 255, 255, 0.9);
}

/* アニメーション */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

@keyframes zoomIn {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.1);
  }
}

.header-toolbar img {
  transition: opacity 0.3s;
}

.header-toolbar img:hover {
  opacity: 0.8;
}

/* コンテンツセクション */
.content-section {
  padding-top: 80px;
  padding-bottom: 80px;
}

.concept-text {
  color: #003049;
  font-size: 1.1rem;
  line-height: 1.8;
}

.section-title {
  color: #003049;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 40px;
  text-align: center;
  letter-spacing: 0.1em;
  position: relative;
  padding-bottom: 20px;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: #FFC300;
  margin: 20px auto 0;
}

.episode-card {
  background: white !important;
  border-radius: 12px;
  transition: transform 0.3s, box-shadow 0.3s;
  height: 100%;
}

.episode-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 48, 73, 0.2) !important;
}

.episode-number {
  color: #003049;
  font-size: 1.5rem;
  font-weight: 700;
}

.episode-title {
  color: #003049;
  font-size: 1.3rem;
  font-weight: 500;
  line-height: 1.4;
}

.episode-date {
  color: #666;
  font-size: 0.9rem;
}

.episode-description {
  color: #333;
  font-size: 1rem;
  line-height: 1.6;
}

.nav-btn {
  color: #003049 !important;
  font-weight: 700;
}

.nav-btn .v-icon {
  color: #003049 !important;
}

/* パソコンで見たときは"pc"のclassがついた画像が表示される */
.pc { 
  display: block !important; 
}

.sp { 
  display: none !important; 
}

/* スマートフォンで見たときは"sp"のclassがついた画像が表示される */
@media only screen and (max-width: 750px) {
  .pc { 
    display: none !important; 
  }
  
  .sp { 
    display: block !important; 
  }
  
  .sp-br {
    display: inline;
  }
  
  .section-title {
    font-size: 1.4rem;
  }
  
  /* ナビゲーションボタンをアイコンのみ表示 */
  .nav-btn .v-btn__content {
    font-size: 0.85rem;
  }
  
  /* ヒーローセクション - スマホ対応 */
  .hero-section {
    height: 100vh;
    min-height: 600px;
  }
  
  .hero-content {
    padding: 0 20px;
  }
  
  .message-text {
    font-size: 1.8rem;
    padding: 0 16px;
    line-height: 1.8;
    letter-spacing: 0.05em;
  }
  
  .message-text::before,
  .message-text::after {
    width: 50px;
    height: 2px;
    margin: 24px auto;
  }
  
  .hero-btn {
    width: 90%;
    max-width: 300px;
    margin: 0 auto 12px auto !important;
    display: block !important;
    padding: 10px 24px !important;
    font-size: 0.9rem !important;
  }
  
  .hero-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .scroll-indicator {
    bottom: 30px;
    right: 30px;
  }
  
  .scroll-indicator-icon {
    font-size: 2.5rem;
  }
  
  .scroll-indicator-text {
    font-size: 0.7rem;
  }
  
  .content-section {
    padding-top: 60px;
    padding-bottom: 60px;
  }
}

@media only screen and (max-width: 600px) {
  .nav-btn {
    min-width: 48px !important;
    padding: 0 8px !important;
  }
  
  .hero-section {
    height: 100vh;
    min-height: 500px;
  }
  
  .message-text {
    font-size: 1.5rem;
  }
  
  .message-text::before,
  .message-text::after {
    width: 40px;
    margin: 20px auto;
  }
  
  .scroll-indicator {
    bottom: 20px;
    right: 20px;
  }
}

/* タブレット対応 */
@media only screen and (min-width: 751px) and (max-width: 1024px) {
  .message-text {
    font-size: 2.2rem;
  }
}

/* PC対応 */
@media only screen and (min-width: 1025px) and (max-width: 1399px) {
  .message-text {
    font-size: 2.6rem;
  }
}

/* 大画面対応 */
@media only screen and (min-width: 1400px) {
  .hero-content {
    max-width: 1400px;
  }
  
  .message-text {
    font-size: 3.5rem;
    letter-spacing: 0.08em;
  }
  
  .message-text::before,
  .message-text::after {
    width: 100px;
    height: 4px;
    margin: 50px auto;
  }
}

/* PC - 改行を消す */
@media only screen and (min-width: 751px) {
  .sp-br {
    display: none;
  }
}