/* unit-converter.css */

/* 카테고리 선택기 */
.category-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
  }
  
  .category-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: calc(20% - 8px);
    padding: 15px 10px;
    border-radius: 8px;
    background: var(--light-bg);
    cursor: pointer;
    transition: all 0.2s;
  }
  
  .category-item:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
  }
  
  .category-item.active {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 500;
  }
  
  .category-item i {
    font-size: 1.5rem;
    margin-bottom: 8px;
  }
  
  /* 변환기 메인 부분 */
  .converter-main {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 10px;
    align-items: center;
    margin-bottom: 20px;
  }
  
  .switch-units {
    display: flex;
    justify-content: center;
  }
  
  .btn-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
  }
  
  .input-group {
    display: flex;
    align-items: center;
  }
  
  .input-group .form-control {
    flex: 1;
    border-radius: 4px 0 0 4px;
  }
  
  .unit-select {
    min-width: 120px;
    border-radius: 0 4px 4px 0;
    border-left: none;
  }
  
  /* 수식 표시 */
  .formula-display {
    background: var(--light-bg);
    padding: 10px 15px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-family: monospace;
    min-height: 42px;
  }
  
  .formula-text {
    margin: 0;
    text-align: center;
  }
  
  /* 빠른 변환 테이블 */
  .quick-convert {
    margin-top: 20px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
  }
  
  .quick-convert h3 {
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.1rem;
    color: var(--gray-600);
  }
  
  .quick-convert-table {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 10px;
  }
  
  .quick-convert-item {
    background: var(--light-bg);
    padding: 10px;
    border-radius: 6px;
    font-size: 0.9rem;
  }
  
  .quick-convert-item .from {
    font-weight: 500;
  }
  
  .quick-convert-item .equals {
    margin: 0 5px;
    color: var(--gray-500);
  }
  
  .quick-convert-item .to {
    color: var(--primary);
  }
  
  /* 자주 사용하는 변환 */
  .favorite-conversions {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 10px;
  }
  
  .favorite-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--light-bg);
    padding: 12px 15px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
  }
  
  .favorite-item:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
  }
  
  .favorite-info {
    flex: 1;
  }
  
  .favorite-title {
    font-weight: 500;
    margin-bottom: 5px;
  }
  
  .favorite-details {
    font-size: 0.8rem;
    color: var(--gray-600);
  }
  
  .favorite-actions {
    display: flex;
    gap: 5px;
  }
  
  .favorite-actions button {
    background: none;
    border: none;
    color: var(--gray-500);
    cursor: pointer;
    transition: color 0.2s;
    padding: 5px;
  }
  
  .favorite-actions button:hover {
    color: var(--primary);
  }
  
  .favorite-actions button.remove-btn:hover {
    color: var(--danger);
  }
  
  .empty-favorites {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px 20px;
    text-align: center;
    color: var(--gray-500);
  }
  
  .empty-favorites i {
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--gray-400);
  }
  
  /* 환율 정보 */
  .exchange-rates {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
  }
  
  .rate-item {
    background: var(--light-bg);
    padding: 10px;
    border-radius: 6px;
    display: flex;
    flex-direction: column;
  }
  
  .rate-currency {
    font-weight: 500;
    margin-bottom: 5px;
    display: flex;
    align-items: center;
  }
  
  .rate-currency img {
    width: 20px;
    height: 20px;
    margin-right: 5px;
  }
  
  .rate-value {
    color: var(--primary);
  }
  
  .rate-change {
    font-size: 0.8rem;
    margin-top: 5px;
  }
  
  .rate-change.up {
    color: var(--success);
  }
  
  .rate-change.down {
    color: var(--danger);
  }
  
  .loading-rates {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px 20px;
    text-align: center;
    color: var(--gray-500);
  }
  
  .loading-rates i {
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--primary);
  }
  
  .exchange-rate-date {
    font-size: 0.8rem;
    font-weight: normal;
    margin-left: 10px;
    color: var(--gray-500);
  }
  
  .rates-disclaimer {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-top: 15px;
    text-align: center;
  }
  
  /* 다크 테마 */
  body.dark-theme .category-item {
    background: var(--dark-accent);
  }
  
  body.dark-theme .category-item:hover,
  body.dark-theme .category-item.active {
    background: var(--primary-dark);
  }
  
  body.dark-theme .formula-display,
  body.dark-theme .quick-convert-item,
  body.dark-theme .favorite-item,
  body.dark-theme .rate-item {
    background: var(--dark-accent);
  }
  
  body.dark-theme .favorite-item:hover {
    background: var(--primary-dark);
  }
  
  /* 반응형 스타일 */
  @media (max-width: 768px) {
    .category-item {
      width: calc(33.33% - 7px);
    }
    
    .converter-main {
      grid-template-columns: 1fr;
      grid-template-rows: auto auto auto;
    }
    
    .switch-units {
      margin: 10px 0;
      transform: rotate(90deg);
    }
    
    .exchange-rates {
      grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
  }
  
  @media (max-width: 480px) {
    .category-item {
      width: calc(50% - 5px);
    }
  }


/* 단위 선택 드롭박스 디자인 개선 */
.select-wrap {
  position: relative;
  min-width: 140px;
  border-radius: 0 4px 4px 0;
  overflow: hidden;
  background: var(--light-bg);
  border: 1px solid var(--border-color);
  border-left: none;
}

.unit-select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 44px;
  padding: 0 32px 0 12px;
  cursor: pointer;
  background: transparent;
  border: none;
  font-size: 1rem;
  color: var(--text-color);
  outline: none;
  transition: background 0.2s;
}

.select-wrap:hover {
  background: var(--primary-light);
}

.select-wrap .fa-chevron-down {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary);
  pointer-events: none;
  transition: transform 0.2s;
}

.select-wrap:hover .fa-chevron-down {
  transform: translateY(-50%) rotate(180deg);
}

/* 다크 테마에서의 드롭박스 스타일 */
body.dark-theme .select-wrap {
  background: var(--dark-accent);
  border-color: var(--dark-border-color);
}

body.dark-theme .unit-select {
  color: var(--dark-text-color);
}

body.dark-theme .select-wrap:hover {
  background: var(--primary-dark);
}

/* 입력 필드와 함께 통일된 높이 설정 */
.form-control, .unit-select {
  height: 44px;
}

/* 입력 필드 개선 */
.input-group .form-control {
  padding: 0 12px;
  border: 1px solid var(--border-color);
  background: var(--light-bg);
  color: var(--text-color);
  font-size: 1rem;
  transition: all 0.2s;
}

.input-group .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-light);
}

/* 반응형에서의 조정 */
@media (max-width: 768px) {
  .select-wrap {
    min-width: 120px;
  }
}