/* ============================================
   AI Page Styles
   ============================================ */

/* お悩みカード（4カラム） */
.ai-problems {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

.ai-problem {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-lg);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition);
}

.ai-problem:hover {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.ai-problem__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, #FFF3D0 0%, #FFE8B0 100%);
  border-radius: 50%;
  color: var(--color-accent);
  margin-bottom: var(--spacing-lg);
}

.ai-problem__title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: var(--spacing-sm);
}

.ai-problem__text {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* 課題→解決 左右レイアウト */
.ai-solve {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  padding: var(--spacing-3xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.ai-solve:first-of-type {
  padding-top: 0;
}

.ai-solve:last-of-type {
  border-bottom: none;
  padding-bottom: 0;
}

.ai-solve--reverse {
  direction: rtl;
}

.ai-solve--reverse > * {
  direction: ltr;
}

.ai-solve__image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.ai-solve__image img {
  width: 100%;
  height: auto;
  display: block;
}

.ai-solve__label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: linear-gradient(135deg, #FFF3D0 0%, #FFE8B0 100%);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--spacing-md);
}

.ai-solve__title {
  font-size: clamp(1.4rem, 3vw, 1.75rem);
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: var(--spacing-md);
}

.ai-solve__text {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: var(--spacing-xl);
}

.ai-solve__effect {
  display: flex;
  gap: var(--spacing-xl);
}

.ai-solve__effect-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ai-solve__effect-number {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--color-secondary);
  line-height: 1.2;
}

.ai-solve__effect-number small {
  font-size: 0.75em;
  font-weight: 700;
}

.ai-solve__effect-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* Before → After セクション */
.ai-results {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  max-width: 800px;
  margin: 0 auto;
}

.ai-result {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--spacing-lg);
  align-items: center;
  padding: var(--spacing-lg) var(--spacing-xl);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition);
}

.ai-result:hover {
  border-color: var(--color-secondary);
  box-shadow: var(--shadow);
}

.ai-result__before,
.ai-result__after {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.ai-result__before-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.ai-result__before-text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.ai-result__arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 50%;
  color: var(--color-dark);
  flex-shrink: 0;
}

.ai-result__after-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-secondary);
  text-transform: uppercase;
}

.ai-result__after-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.5;
}

.ai-cases-more {
  text-align: center;
  margin-top: var(--spacing-2xl);
}

/* --- Responsive: AI --- */
@media (max-width: 768px) {
  .ai-problems {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  .ai-solve {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl) 0;
  }

  .ai-solve--reverse {
    direction: ltr;
  }

  .ai-solve__image {
    order: -1;
  }

  .ai-result {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
    text-align: center;
    padding: var(--spacing-lg);
  }

  .ai-result__before,
  .ai-result__after {
    align-items: center;
  }

  .ai-result__arrow {
    width: 32px;
    height: 32px;
    margin: 0 auto;
  }

  .ai-result__arrow svg {
    transform: rotate(90deg);
  }
}

@media (max-width: 480px) {
  .ai-problems {
    grid-template-columns: 1fr;
  }

  .ai-solve__effect {
    flex-direction: column;
    gap: var(--spacing-md);
  }
}