/* css/pages/words_habits.css */
/* ベースのスタイルを継承しつつ、独自の装飾を追加 */

/* 背景オーラ演出 */
.bg-aura-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
  background: #fdfbf7;
}

.aura-light {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  pointer-events: none;
}

.aura-1 {
  width: 60vw;
  height: 60vw;
  background: radial-gradient(
    circle,
    rgba(224, 242, 254, 0.6),
    transparent
  ); /* 淡いスカイブルー */
  top: -10%;
  right: -10%;
  animation: auraFloat 20s infinite alternate;
}

.aura-2 {
  width: 50vw;
  height: 50vw;
  background: radial-gradient(
    circle,
    rgba(245, 243, 255, 0.6),
    transparent
  ); /* 淡いラベンダー */
  bottom: -10%;
  left: -5%;
  animation: auraFloat 25s infinite alternate-reverse;
}

.aura-3 {
  width: 40vw;
  height: 40vw;
  background: radial-gradient(
    circle,
    rgba(236, 253, 245, 0.6),
    transparent
  ); /* 淡いミント */
  top: 30%;
  left: 15%;
  animation: auraFloat 30s infinite alternate;
}

@keyframes auraFloat {
  0% {
    transform: translate(0, 0) scale(1);
  }
  100% {
    transform: translate(10%, 10%) scale(1.1);
  }
}

.hero-section {
  position: relative;
  padding: 10rem 1rem 8rem;
  text-align: center;
  background: linear-gradient(
    135deg,
    rgba(255, 220, 230, 0.45) 0%,
    rgba(220, 240, 255, 0.45) 25%,
    rgba(240, 230, 255, 0.45) 50%,
    rgba(220, 255, 240, 0.45) 75%,
    rgba(255, 250, 220, 0.45) 100%
  );
  background-size: 300% 300%;
  animation: prismShift 12s ease infinite;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 0 0 100% 100% / 0 0 60px 60px;
  margin-bottom: 6rem;
  overflow: hidden;
  box-shadow: 
    0 20px 50px rgba(0, 0, 0, 0.02),
    inset 0 -20px 40px rgba(255, 255, 255, 0.4);
}

@keyframes prismShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.hero-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(255, 255, 255, 0.5) 0%,
    transparent 100%
  );
  z-index: 0;
  pointer-events: none;
}

@keyframes rotate {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-family: "Kaisei Opti", serif;
  font-size: clamp(2.5rem, 8vw, 4.2rem);
  margin-bottom: 2rem;
  color: #232f3e; 
  text-shadow: 
    0 0 25px rgba(255, 255, 255, 0.9),
    0 2px 4px rgba(0, 0, 0, 0.05);
  letter-spacing: 0.15em;
  font-weight: 700;
}

.hero-subtitle {
  font-size: clamp(1rem, 3vw, 1.35rem);
  color: #4a5568; 
  line-height: 2;
  max-width: 700px;
  margin: 0 auto;
  font-weight: 400;
  background: linear-gradient(90deg, #4a5568, #718096, #4a5568);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  /* 文字自体にわずかな虹色のニュアンスを */
  animation: shine 10s linear infinite;
}

@keyframes shine {
  to { background-position: 200% center; }
}

/* 章ごとの装飾（LP風レイアウト） */
.lp-section {
  margin-bottom: 10rem;
  position: relative;
}

.content-block {
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 3rem;
  border-radius: 24px;
  box-shadow:
    0 10px 30px rgba(0, 0, 0, 0.02),
    inset 0 0 0 1px rgba(255, 255, 255, 0.2);
  margin-bottom: 3rem;
}

.chapter-title {
  font-family: "Kaisei Opti", serif;
  font-size: 2.2rem;
  color: #2c3e50;
  margin-top: 0;
  margin-bottom: 4rem;
  padding-bottom: 0.8rem;
  display: inline-block;
  position: relative;
  line-height: 1.4;
}

.chapter-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: #ffb380;
  border-radius: 1px;
}

/* 中央揃えユーティリティ */
.text-center {
  text-align: center;
}

.chapter-title.text-center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: fit-content;
}

/* 浮遊テキストアニメーション */
.floating-text {
  animation: floatText 4s ease-in-out infinite;
}

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

/* 3つの習慣（カードグリッド） */
.methods-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  margin: 4rem 0;
}

.method-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  padding: 3rem 2rem;
  border-radius: 24px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
  transition: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.method-step:hover {
  transform: translateY(-8px);
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(255, 255, 255, 1);
  box-shadow: 
    0 20px 40px rgba(220, 240, 255, 0.2),
    0 0 20px rgba(245, 243, 255, 0.2);
}

.step-number {
  background: linear-gradient(135deg, #e0f2fe, #f5f3ff);
  color: #4a5568;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: bold;
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-bottom: 0.5rem;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
}

.step-content h4 {
  margin-top: 0.5rem;
  margin-bottom: 1rem;
  font-size: 1.25rem;
  color: #2c3e50;
}

/* マインドセット */
.highlight-box {
  background: linear-gradient(
    135deg,
    rgba(224, 242, 254, 0.4) 0%,
    rgba(245, 243, 255, 0.4) 100%
  ); /* スカイブルーからラベンダーへの淡い虹色 */
  backdrop-filter: blur(10px);
  border-left: 8px solid #90cdf4; 
  padding: 3rem;
  margin: 5rem 0;
  border-radius: 0 24px 24px 0;
  box-shadow: 
    0 10px 30px rgba(0, 0, 0, 0.02),
    inset 0 0 20px rgba(255, 255, 255, 0.5);
}

.quote-box {
  font-family: "Kaisei Opti", serif;
  font-size: 1.3rem;
  text-align: center;
  padding: 6rem 4rem;
  margin: 10rem 0;
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(20px);
  position: relative;
  border-radius: 40px;
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.03),
    inset 0 0 40px rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.8);
  line-height: 2.2;
}

/* 内側の装飾的な二重線 */
.quote-box::after {
  content: "";
  position: absolute;
  top: 15px;
  left: 15px;
  right: 15px;
  bottom: 15px;
  border: 1px double rgba(144, 205, 244, 0.3); /* 淡いスカイブルーの二重線 */
  border-radius: 30px;
  pointer-events: none;
}

.quote-box::before {
  content: "\f10d";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 4rem;
  position: absolute;
  top: -2rem;
  left: 50%;
  transform: translateX(-50%);
  color: white;
  background: linear-gradient(135deg, #e0f2fe, #f5f3ff);
  width: 80px;
  height: 80px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
  z-index: 2;
}

.quote-box p:first-of-type {
  position: relative;
  z-index: 1;
  color: #2c3e50;
  font-weight: 400;
  padding: 0 1rem;
}

.quote-box p:last-of-type {
  text-align: right;
  font-size: 1.1rem;
  margin-top: 2.5rem;
  color: #64748b;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1rem;
}

.quote-box p:last-of-type::before {
  content: "";
  width: 30px;
  height: 1px;
  background: rgba(144, 205, 244, 0.4);
}

.sns-tips {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-top: 4rem;
}

.sns-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0.2));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  padding: 3rem 2rem;
  border-radius: 30px;
  text-align: center;
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.02),
    inset 0 0 20px rgba(255, 255, 255, 0.4);
  transition: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
  position: relative;
  overflow: hidden;
}

.sns-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  opacity: 0.6;
}

/* 各タイルのテーマカラーに合わせた天面ラインと背景光 */
.sns-card:nth-child(1)::before { background: #81e6d9; }
.sns-card:nth-child(2)::before { background: #feb2b2; }
.sns-card:nth-child(3)::before { background: #b794f4; }
.sns-card:nth-child(4)::before { background: #fbb6ce; }
.sns-card:nth-child(5)::before { background: #90cdf4; }

.sns-card h4 {
  font-family: "Kaisei Opti", serif;
  margin: 1.5rem 0 1rem;
  color: #2c3e50;
  font-size: 1.15rem;
}

.sns-card p {
  font-size: 0.9rem;
  color: #64748b;
  line-height: 1.6;
}

.sns-card:hover {
  transform: translateY(-10px) scale(1.02);
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(255, 255, 255, 1);
  box-shadow: 
    0 20px 40px rgba(0, 0, 0, 0.05),
    inset 0 0 15px rgba(255, 255, 255, 1);
}

/* SNSアイコンのカラーをパステル・プリズムトーンに統一し、光の溜まりを作る */
.sns-card i {
  filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.8));
  transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.sns-card:hover i {
  transform: scale(1.2) rotate(5deg);
}

.sns-card i.fa-sun { color: #81e6d9 !important; filter: drop-shadow(0 0 12px rgba(129, 230, 217, 0.4)); }
.sns-card i.fa-hands-praying { color: #feb2b2 !important; filter: drop-shadow(0 0 12px rgba(254, 178, 178, 0.4)); }
.sns-card i.fa-wand-magic-sparkles { color: #b794f4 !important; filter: drop-shadow(0 0 12px rgba(183, 148, 244, 0.4)); }
.sns-card i.fa-heart { color: #fbb6ce !important; filter: drop-shadow(0 0 12px rgba(251, 182, 206, 0.4)); }
.sns-card i.fa-face-smile-beam { color: #90cdf4 !important; filter: drop-shadow(0 0 12px rgba(144, 205, 244, 0.4)); }

.sns-card i {
  transition: transform 0.5s ease;
}

.sns-card:hover i {
  transform: scale(1.1);
}

/* ユーティリティ */
.mb-4 {
  margin-bottom: 1.5rem;
}
.mt-5 {
  margin-top: 3rem;
}

/* レスポンシブ対応 (スマホ・タブレット) */
@media (max-width: 768px) {
  .hero-section {
    padding: 6rem 1rem 4rem;
    border-radius: 0 0 500px 500px / 0 0 40px 40px;
    margin-bottom: 3rem;
  }
  
  .hero-title {
    font-size: clamp(1.8rem, 10vw, 2.5rem);
    letter-spacing: 0.1em;
  }

  .chapter-title {
    font-size: 1.6rem;
    margin-bottom: 2.5rem;
  }

  .content-block {
    padding: 2rem 1.5rem;
  }

  .methods-grid {
    gap: 1.5rem;
  }

  .quote-box {
    padding: 4rem 2rem;
    font-size: 1.15rem;
    margin: 6rem 0;
  }

  .quote-box::before {
    font-size: 3rem;
    width: 60px;
    height: 60px;
    top: -1.5rem;
  }

  .kotodama-card-container {
    width: 100%;
    max-width: 280px;
    height: 280px;
  }
}

@media (max-width: 480px) {
  .sns-tips {
    grid-template-columns: 1fr;
  }
  
  .page-nav-3btn {
    margin-top: 4rem;
  }
  
  .nav-btn.list {
    padding: 1.2rem 2rem;
    font-size: 1rem;
    width: 100%;
  }
}

/* 言霊変換チャレンジ (3D Flip) */
.kotodama-challenge-area {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin: 3rem 0;
  perspective: 1000px;
}

.kotodama-card-container {
  width: 250px;
  height: 250px;
}

.kotodama-card {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1); /* 弾むような高級感 */
  transform-style: preserve-3d;
  cursor: pointer;
}

.kotodama-card:hover {
  transform: scale(1.05);
}

.kotodama-card.flipped:hover {
  transform: rotateY(180deg) scale(1.05);
}

.card-face {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 1.5rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* 表面（ネガティブ） */
.card-face.card-front {
  background: linear-gradient(135deg, #ffffff, #f8faff);
  border: 1px solid rgba(220, 240, 255, 0.5);
  color: #718096;
}

.card-face.card-front .word-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: #cbd5e0;
  filter: drop-shadow(0 0 8px rgba(220, 240, 255, 0.4));
}

.negative-word {
  font-size: 1.2rem;
  font-weight: bold;
  margin-bottom: 1.5rem;
  color: #4a5568;
}

/* 言霊変換チャレンジ (3D Flip) */
/* ... existing styles ... */
/* 裏面（ポジティブ） */
.card-face.card-back {
  background: linear-gradient(135deg, #fff, #fff5f0);
  border: 2px solid #ffcfb3;
  color: #2c3e50;
  transform: rotateY(180deg);
  box-shadow: 0 0 20px rgba(255, 179, 128, 0.2);
}

.card-face.card-back .word-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: #e74c3c; /* ハートや輝きの色 */
}

.positive-word {
  font-size: 1.3rem;
  font-weight: bold;
  color: #2c3e50;
  margin-bottom: 0.5rem;
}

.sparkles {
  font-size: 1.5rem;
  animation: pulse-sparkle 1.5s infinite;
}

@keyframes pulse-sparkle {
  0% {
    opacity: 0.5;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.2);
  }
  100% {
    opacity: 0.5;
    transform: scale(1);
  }
}

.magic-wand-btn {
  background: linear-gradient(135deg, #e0f2fe, #f5f3ff);
  color: #4a5568;
  border: 1px solid rgba(255, 255, 255, 0.8);
  padding: 0.6rem 1.2rem;
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: bold;
  transition: all 0.3s;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.magic-wand-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 15px rgba(220, 240, 255, 0.3);
}

/* 今日の魔法の言葉カードをより神秘的に */
.magic-word-of-the-day-section {
  margin-top: 8rem;
  margin-bottom: 6rem;
  padding: 0 1rem;
}

.magic-word-wrapper {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.4) 0%, rgba(224, 242, 254, 0.2) 100%);
  backdrop-filter: blur(20px);
  padding: 4rem 1.5rem;
  border-radius: 40px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.02);
}

.magic-word-wrapper h3 {
  font-family: "Kaisei Opti", serif;
  color: #2c3e50;
  font-size: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.magic-word-wrapper h3 i {
  color: #90cdf4;
  filter: drop-shadow(0 0 8px rgba(144, 205, 244, 0.4));
}

.daily-word-card-container {
  display: flex;
  justify-content: center;
}

.daily-word-card {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 30px;
  padding: 4rem 2rem;
  max-width: 600px;
  width: 100%;
  box-shadow:
    0 30px 60px rgba(0, 0, 0, 0.05),
    inset 0 0 30px rgba(255, 255, 255, 0.5);
  position: relative;
  transition: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.daily-word-card:hover {
  transform: translateY(-5px);
  box-shadow:
    0 15px 50px rgba(212, 175, 55, 0.2),
    0 8px 20px rgba(0, 0, 0, 0.08);
}

.daily-word-card::before {
  content: "";
  position: absolute;
  top: 15px;
  left: 15px;
  right: 15px;
  bottom: 15px;
  border: 1px double rgba(144, 205, 244, 0.2);
  border-radius: 20px;
  pointer-events: none;
}

.card-intro {
  font-size: 0.9rem;
  color: #95a5a6;
  margin-bottom: 1.5rem;
  letter-spacing: 0.1em;
}

.word-content-area {
  margin: 2rem 0;
  position: relative;
  padding: 0 2rem;
}

.word-display {
  font-family: "Kaisei Opti", serif;
  font-size: 2rem;
  font-weight: bold;
  color: #2c3e50;
  line-height: 1.6;
}

.quote-icon {
  color: #eee;
  font-size: 2rem;
}
.quote-icon:first-child {
  position: absolute;
  top: -20px;
  left: 0;
}
.quote-icon:last-child {
  position: absolute;
  bottom: -20px;
  right: 0;
}

/* 別の言葉を授かる（魔法の杖）ボタン */
.btn-refresh-word {
  margin-top: 2rem;
  background: linear-gradient(135deg, #e0f2fe 0%, #f5f3ff 100%);
  color: #4a5568;
  border: 1px solid rgba(255, 255, 255, 0.8);
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
  font-family: "Kaisei Opti", serif;
  font-weight: bold;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow:
    0 6px 15px rgba(212, 175, 55, 0.3),
    inset 0 0 0 1px rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-left: auto;
  margin-right: auto;
}

.btn-refresh-word:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 15px 35px rgba(144, 205, 244, 0.3);
  background: linear-gradient(135deg, #fff 0%, #e0f2fe 100%);
}

.btn-refresh-word i {
  font-size: 1.2rem;
  transition: transform 0.5s ease;
}

/* 魔法を唱えているときのアニメーション */
.btn-refresh-word.casting i {
  animation: magic-spin 0.8s infinite linear;
}

@keyframes magic-spin {
  from {
    transform: rotate(0deg) scale(1.2);
  }
  to {
    transform: rotate(360deg) scale(1.2);
  }
}

.btn-refresh-word:active {
  transform: translateY(0) scale(0.98);
}

.btn-refresh-word:disabled {
  cursor: wait;
  opacity: 0.8;
}

/* サイドバーにも魔法を */
.sidebar-widget {
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 24px;
  padding: 2.5rem 1.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
  margin-bottom: 2.5rem;
}

.sidebar-widget h3 {
  font-family: "Kaisei Opti", serif;
  font-size: 1.3rem;
  border-bottom: 2px solid rgba(255, 179, 128, 0.2);
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
}

.sidebar-nav-list a {
  background: rgba(255, 255, 255, 0.3);
  border: 1px solid transparent;
  transition: all 0.3s ease;
}

.sidebar-nav-list a:hover {
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(255, 179, 128, 0.3);
  transform: translateX(5px);
}

.sidebar-advice {
  background: linear-gradient(
    135deg,
    rgba(253, 224, 71, 0.1),
    rgba(255, 126, 95, 0.1)
  );
  border-radius: 16px;
  padding: 1.5rem;
}

/* アニメーションディレイ */
.delay-100 {
  animation-delay: 0.1s;
}
.delay-200 {
  animation-delay: 0.2s;
}
.delay-300 {
  animation-delay: 0.3s;
}
.delay-400 {
  animation-delay: 0.4s;
}

/* revealの基本アニメーション - 静かに現れる演出へ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 1s ease-out,
    transform 1s ease-out;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ナビゲーションボタンのドラマチックな演出 */
.page-nav-3btn {
  margin-top: 8rem;
  display: flex;
  justify-content: center;
}

.nav-btn.list {
  position: relative;
  padding: 1.5rem 4rem;
  font-family: "Kaisei Opti", serif;
  font-size: 1.2rem;
  color: #fff;
  background: linear-gradient(135deg, #90cdf4, #b794f4);
  border-radius: 50px;
  text-decoration: none;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(144, 205, 244, 0.3);
  transition: all 0.4s ease;
  display: flex;
  align-items: center;
  gap: 1rem;
  border: none;
}

.nav-btn.list::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    120deg,
    transparent,
    rgba(255, 255, 255, 0.4),
    transparent
  );
  transition: all 0.6s;
}

.nav-btn.list:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 15px 35px rgba(144, 205, 244, 0.5);
}

.nav-btn.list:hover::before {
  left: 100%;
}

.nav-btn.list i {
  font-size: 1.4rem;
  transition: transform 0.4s ease;
}

.nav-btn.list:hover i {
  transform: translateX(-5px);
}

/* フッター装飾 */
.page-footer {
  text-align: center;
  padding: 6rem 2rem 4rem;
  color: #64748b;
  font-family: "Kaisei Opti", serif;
  background: linear-gradient(to top, rgba(224, 242, 254, 0.1), transparent);
  margin-top: 10rem;
  position: relative;
}

.page-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(144, 205, 244, 0.5), transparent);
}

.page-footer p {
  font-size: 0.95rem;
  letter-spacing: 0.1em;
}

/* マーカー装飾 */
.marker-rainbow {
  background: linear-gradient(to bottom, transparent 60%, rgba(144, 205, 244, 0.4) 60%);
  font-weight: bold;
}