/**
 * 成功方程式 v2 - 横並び+下向きレイアウト
 * 2026-04-09
 */

.formula-container-v2 {
  margin: 48px auto;
  padding: 0;
  max-width: 1200px;
}

/* 上段：3つの要素を横並び */
.formula-items-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.formula-item-v2 {
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fb 100%);
  border: 2px solid rgba(139, 92, 246, 0.2);
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.formula-item-v2::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #FF3366, #8B5CF6, #3B82F6);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.formula-item-v2:hover::before {
  opacity: 1;
}

.formula-item-v2:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(139, 92, 246, 0.2);
  border-color: rgba(139, 92, 246, 0.4);
}

.fi-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, #FF3366, #8B5CF6);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(139, 92, 246, 0.3);
}

.fi-icon i {
  font-size: 2.5rem;
  color: white;
}

.formula-item-v2 h3 {
  font-size: 1.3rem;
  font-weight: 800;
  color: #1a1a2e;
  margin-bottom: 12px;
  line-height: 1.3;
}

.formula-item-v2 p {
  font-size: 0.95rem;
  color: #666;
  line-height: 1.7;
  margin: 0;
}

/* 中央：下向き矢印（イコール） */
.formula-equals-down {
  text-align: center;
  margin: 0 0 32px 0;
  position: relative;
}

.formula-equals-down i {
  font-size: 3rem;
  background: linear-gradient(135deg, #FF3366, #8B5CF6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: bounce-down 2s ease-in-out infinite;
}

@keyframes bounce-down {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(8px);
  }
}

/* 下段：結果 */
.formula-result-v2 {
  background:
    /* 暗めのオーバーレイで文字を読みやすく */
    linear-gradient(
      135deg,
      rgba(10, 10, 30, 0.82) 0%,
      rgba(20, 10, 40, 0.75) 50%,
      rgba(10, 10, 30, 0.82) 100%
    ),
    /* 山頂ガッツポーズ画像 */
    url('../images/mountain-summit2.jpg') center/cover no-repeat;
  border: 2px solid rgba(255, 200, 80, 0.5);
  border-radius: 20px;
  padding: 48px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 80px rgba(245, 166, 35, 0.2),
    inset 0 0 120px rgba(200, 80, 20, 0.1);
}

.formula-result-v2::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  /* 山頂から光が射すエフェクト */
  background:
    radial-gradient(ellipse 60% 40% at 50% 85%, rgba(245,166,35,0.35) 0%, transparent 70%),
    radial-gradient(ellipse 30% 20% at 50% 78%, rgba(255,200,80,0.5) 0%, transparent 50%);
  animation: pulse-glow-gold 3s ease-in-out infinite;
  pointer-events: none;
  z-index: 1;
}

.formula-result-icon {
  width: 100px;
  height: 100px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, #FFD700, #FFA500);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 
    0 12px 32px rgba(255, 215, 0, 0.6),
    0 0 40px rgba(255, 215, 0, 0.4);
  position: relative;
  z-index: 2;
  border: 3px solid rgba(255, 255, 255, 0.3);
}

.formula-result-icon i {
  font-size: 3rem;
  color: white;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.formula-result-v2 h3 {
  font-size: 2.2rem;
  font-weight: 900;
  background: linear-gradient(135deg, #FFD700, #FFA500, #FFD700);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
  line-height: 1.2;
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 2px 8px rgba(255, 215, 0, 0.5));
  text-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

.formula-result-v2 p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.7;
  margin: 0;
  position: relative;
  z-index: 2;
}

@keyframes pulse-glow-gold {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

/* タブレット対応 */
@media (max-width: 1024px) {
  .formula-items-row {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  
  .fi-icon {
    width: 70px;
    height: 70px;
  }
  
  .fi-icon i {
    font-size: 2rem;
  }
  
  .formula-item-v2 h3 {
    font-size: 1.15rem;
  }
  
  .formula-item-v2 p {
    font-size: 0.9rem;
  }
}

/* モバイル対応 */
@media (max-width: 768px) {
  .formula-items-row {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 24px;
  }
  
  .formula-item-v2 {
    padding: 28px 20px;
  }
  
  .fi-icon {
    width: 64px;
    height: 64px;
  }
  
  .fi-icon i {
    font-size: 1.8rem;
  }
  
  .formula-equals-down {
    margin: 0 0 24px 0;
  }
  
  .formula-equals-down i {
    font-size: 2.5rem;
  }
  
  .formula-result-v2 {
    padding: 36px 24px;
  }
  
  .formula-result-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
  }
  
  .formula-result-icon i {
    font-size: 2.5rem;
  }
  
  .formula-result-v2 h3 {
    font-size: 1.8rem;
  }
  
  .formula-result-v2 p {
    font-size: 1rem;
  }
}