.bt-button-container {
  max-width: 900px;
  margin: 60px auto 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.bt-simple-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: white;
  border: 1px solid #e0e0e0;
  border-radius: 12px;
  text-decoration: none;
  color: #333;
  font-size: 1rem;
  font-weight: 500;
  transition: all 0.3s ease;
  cursor: pointer;
}

.bt-simple-button:hover {
  background: #018091;
  border-color: #b2ffe5;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 172, 148, 0.2);
}

.bt-button-text {
  flex: 1;
}

.bt-button-arrow {
  margin-left: 12px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.bt-simple-button:hover .bt-button-arrow {
  transform: translateX(4px);
}

/* タブレット対応 */
@media (max-width: 768px) {
  .bt-button-container {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .bt-simple-button {
    padding: 16px 20px;
    font-size: 0.95rem;
  }
}

/* スマホ対応 */
@media (max-width: 480px) {
  .bt-simple-button {
    padding: 14px 16px;
    font-size: 0.9rem;
  }

  .bt-button-arrow {
    width: 18px;
    height: 18px;
  }
}

/* アクセシビリティ */
@media (prefers-reduced-motion: reduce) {
  .bt-simple-button,
  .bt-button-arrow {
    transition: none;
  }

  .bt-simple-button:hover {
    transform: none;
  }

  .bt-simple-button:hover .bt-button-arrow {
    transform: none;
  }
}

/* フォーカス状態 */
.bt-simple-button:focus {
  outline: 3px solid rgba(102, 172, 148, 0.4);
  outline-offset: 2px;
}

.bt-simple-button:focus:not(:focus-visible) {
  outline: none;
}

.bt-simple-button:focus-visible {
  outline: 3px solid rgba(102, 172, 148, 0.4);
  outline-offset: 2px;
}

/* アクティブ状態 */
.bt-simple-button:active {
  transform: translateY(0);
}