/* カスタムスタイル */
html {
  scroll-behavior: smooth;
}

/* ナビゲーション */
.nav-link {
  position: relative;
  transition: color 0.3s;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #92400e;
  transition: width 0.3s;
}
.nav-link:hover::after {
  width: 100%;
}

/* ヒーローセクション */
.hero-bg {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 40%, #fcd34d 100%);
}

/* カードホバー */
.card-hover {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card-hover:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}

/* みおちゃん画像アニメーション */
.mio-float {
  animation: float 3s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

/* スキルバー */
.skill-bar {
  height: 10px;
  border-radius: 9999px;
  background: #e5e7eb;
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  border-radius: 9999px;
  background: linear-gradient(90deg, #92400e, #d97706);
  transition: width 1.5s ease;
}

/* セクションタイトル */
.section-title {
  position: relative;
  display: inline-block;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, #92400e, #d97706);
  border-radius: 2px;
}

/* お問い合わせフォーム */
.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e5e7eb;
  border-radius: 12px;
  outline: none;
  transition: border-color 0.3s;
  font-family: 'Noto Sans JP', sans-serif;
}
.form-input:focus {
  border-color: #d97706;
}

/* ボタン */
.btn-primary {
  background: linear-gradient(135deg, #92400e, #d97706);
  color: white;
  padding: 14px 40px;
  border-radius: 9999px;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  transition: opacity 0.3s, transform 0.2s;
  border: none;
  display: inline-block;
}
.btn-primary:hover {
  opacity: 0.9;
  transform: scale(1.04);
}

/* タイムライン */
.timeline-item {
  position: relative;
  padding-left: 32px;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #d97706;
}
.timeline-dot {
  position: absolute;
  left: 0;
  top: 6px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #d97706;
  border: 3px solid white;
  box-shadow: 0 0 0 2px #d97706;
}

/* フッター */
.footer-bg {
  background: linear-gradient(135deg, #1c1917, #292524);
}

/* スクロールアニメーション */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ハンバーガーメニュー */
#mobile-menu {
  display: none;
}
#mobile-menu.open {
  display: block;
}