/* ============================================
   todo.css — 할일 리스트 스타일
   빈티지 노트 / PC통신 양 테마 지원
   ============================================ */

/* ── 할일 섹션 ── */
.todo-section {
  flex: 1;
  padding: var(--spacing-md) 0;
  padding-bottom: var(--spacing-xl);
}

.todo-section__header {
  margin-bottom: var(--spacing-lg);
}

.todo-section__title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-sm);
}

.todo-section__title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  font-family: var(--font-family);
  color: var(--text-mid);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding-bottom: var(--spacing-xs);
  border-bottom: 2px solid var(--accent-red);
  display: inline-block;
}

.todo-section__count {
  font-size: var(--font-size-xs);
  color: var(--text-light);
  font-family: var(--font-family-ui);
}

/* ── 진행률 바 ── */
.todo-progress {
  height: 6px;
  background: var(--todo-progress-bg);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: var(--spacing-md);
  box-shadow: inset 0 1px 2px hsla(0, 0%, 0%, 0.15);
}

.todo-progress__fill {
  height: 100%;
  background: var(--todo-progress-fill);
  border-radius: 3px;
  transition: width 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  min-width: 0;
}

.todo-progress__text {
  font-size: var(--font-size-xs);
  color: var(--text-light);
  font-family: var(--font-family-ui);
  text-align: right;
  margin-top: 2px;
  margin-bottom: var(--spacing-sm);
}

/* ── 필터 탭 ── */
.todo-filters {
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.todo-filter-btn {
  padding: 3px var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-family: var(--font-family-ui);
  font-weight: var(--font-weight-medium);
  border: 1px solid var(--paper-shadow);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-light);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.todo-filter-btn.active {
  background: var(--accent-red);
  color: #fff;
  border-color: var(--accent-red);
}

/* ── 그룹 제목 ── */
.todo-group__title {
  font-size: var(--font-size-xs);
  font-family: var(--font-family-ui);
  font-weight: var(--font-weight-bold);
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: var(--spacing-sm) 0 var(--spacing-xs);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.todo-group__title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--paper-shadow);
}

/* ── 할일 아이템 ── */
.todo-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.todo-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--paper-cream);
  border-radius: var(--radius-sm);
  box-shadow: 0 1px 2px hsla(0, 0%, 0%, 0.08);
  transition: all 0.2s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.todo-item:active {
  transform: scale(0.99);
  box-shadow: inset 0 1px 3px hsla(0, 0%, 0%, 0.12);
}

.todo-item--done {
  opacity: 0.55;
}

.todo-item--done .todo-item__title {
  text-decoration: line-through;
  color: var(--todo-done-text);
}

/* 체크박스 */
.todo-item__check {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border: 2px solid var(--paper-shadow);
  border-radius: 4px;
  background: var(--paper-warm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.todo-item__check--checked {
  background: var(--todo-check-color);
  border-color: var(--todo-check-color);
}

.todo-item__check-icon {
  font-size: 12px;
  color: #fff;
  opacity: 0;
  transform: scale(0);
  transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.todo-item__check--checked .todo-item__check-icon {
  opacity: 1;
  transform: scale(1);
}

/* 텍스트 영역 */
.todo-item__body {
  flex: 1;
  min-width: 0;
}

.todo-item__title {
  font-size: var(--font-size-base);
  font-family: var(--font-family-ui);
  font-weight: var(--font-weight-medium);
  color: var(--todo-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color 0.2s, text-decoration 0.2s;
}

.todo-item__meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: 2px;
}

.todo-item__due {
  font-size: var(--font-size-xs);
  color: var(--text-light);
  font-family: var(--font-family-ui);
}

.todo-item__due--overdue {
  color: var(--todo-priority-high);
  font-weight: var(--font-weight-bold);
}

.todo-item__category {
  font-size: 0.6rem;
  padding: 1px 5px;
  border-radius: 6px;
  font-family: var(--font-family-ui);
  font-weight: var(--font-weight-bold);
  color: #fff;
}

.todo-item__category--work    { background: var(--todo-category-work); }
.todo-item__category--study   { background: var(--todo-category-study); }
.todo-item__category--exercise{ background: var(--todo-category-exercise); }
.todo-item__category--life    { background: var(--todo-category-life); }

/* 우선순위 인디케이터 */
.todo-item__priority {
  width: 4px;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

.todo-item__priority--high   { background: var(--todo-priority-high); }
.todo-item__priority--medium { background: var(--todo-priority-medium); }
.todo-item__priority--low    { background: var(--todo-priority-low); }

/* 삭제 버튼 */
.todo-item__delete {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border: none;
  background: transparent;
  color: var(--text-light);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  opacity: 0;
}

.todo-item:hover .todo-item__delete,
.todo-item:active .todo-item__delete {
  opacity: 1;
}

.todo-item__delete:active {
  background: hsla(4, 68%, 46%, 0.15);
  color: var(--accent-red);
}

/* ── 빈 상태 ── */
.todo-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-lg);
  animation: fadeSlideIn 0.3s ease;
}

.todo-empty__icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  opacity: 0.5;
}

.todo-empty__text {
  font-size: var(--font-size-base);
  color: var(--text-light);
  font-family: var(--font-family);
}

/* ── 할일 모달 추가 폼 ── */
.todo-modal__priority-picker {
  display: flex;
  gap: var(--spacing-sm);
}

.priority-option {
  flex: 1;
  padding: 6px;
  text-align: center;
  font-size: var(--font-size-xs);
  font-family: var(--font-family-ui);
  font-weight: var(--font-weight-bold);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--paper-aged);
  color: var(--text-mid);
}

.priority-option:active {
  transform: scale(0.96);
}

.priority-option.selected {
  transform: scale(1.02);
}

.priority-option--high.selected {
  border-color: var(--todo-priority-high);
  background: hsla(4, 68%, 46%, 0.1);
  color: var(--todo-priority-high);
}

.priority-option--medium.selected {
  border-color: var(--todo-priority-medium);
  background: hsla(44, 80%, 50%, 0.1);
  color: hsl(44, 80%, 38%);
}

.priority-option--low.selected {
  border-color: var(--todo-priority-low);
  background: hsla(210, 55%, 46%, 0.1);
  color: var(--todo-priority-low);
}

.todo-modal__category-picker {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.category-option {
  padding: 4px 10px;
  font-size: var(--font-size-xs);
  font-family: var(--font-family-ui);
  font-weight: var(--font-weight-medium);
  border: 1px solid var(--paper-shadow);
  border-radius: 12px;
  background: transparent;
  color: var(--text-mid);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.category-option:active {
  transform: scale(0.96);
}

.category-option.selected {
  color: #fff;
}

.category-option--work.selected    { background: var(--todo-category-work); border-color: var(--todo-category-work); }
.category-option--study.selected   { background: var(--todo-category-study); border-color: var(--todo-category-study); }
.category-option--exercise.selected{ background: var(--todo-category-exercise); border-color: var(--todo-category-exercise); }
.category-option--life.selected    { background: var(--todo-category-life); border-color: var(--todo-category-life); }

/* ============================================
   PC통신 테마 오버라이드
   ============================================ */
[data-theme="pctel"] .todo-section {
  background: var(--todo-bg);
}

[data-theme="pctel"] .todo-progress {
  border-radius: 0;
  box-shadow: none;
  border: 1px solid var(--text-light);
}

[data-theme="pctel"] .todo-progress__fill {
  border-radius: 0;
}

[data-theme="pctel"] .todo-filter-btn {
  border: 1px solid var(--text-light);
  border-radius: 0;
  color: var(--text-light);
}

[data-theme="pctel"] .todo-filter-btn.active {
  background: var(--text-light);
  color: var(--leather-dark);
  border-color: var(--text-light);
}

[data-theme="pctel"] .todo-group__title {
  color: var(--text-light);
}

[data-theme="pctel"] .todo-group__title::after {
  background: var(--text-light);
}

[data-theme="pctel"] .todo-item {
  background: transparent;
  border: 1px solid var(--text-light);
  border-radius: 0;
  box-shadow: none;
}

[data-theme="pctel"] .todo-item__check {
  border-radius: 0;
  border-color: var(--text-light);
  background: transparent;
}

[data-theme="pctel"] .todo-item__check--checked {
  background: var(--todo-check-color);
  border-color: var(--todo-check-color);
}

[data-theme="pctel"] .todo-item__priority {
  border-radius: 0;
}

[data-theme="pctel"] .todo-item__category {
  border-radius: 0;
}

[data-theme="pctel"] .todo-item__title {
  color: var(--todo-text);
}

[data-theme="pctel"] .todo-item--done .todo-item__title {
  color: var(--todo-done-text);
}

[data-theme="pctel"] .todo-item__delete {
  opacity: 1;
  color: var(--text-light);
  border-radius: 0;
}

[data-theme="pctel"] .todo-empty__text {
  color: var(--text-light);
}

[data-theme="pctel"] .priority-option {
  background: transparent;
  border: 1px solid var(--text-light);
  border-radius: 0;
  color: var(--text-light);
}

[data-theme="pctel"] .priority-option.selected {
  background: var(--text-light);
  color: var(--leather-dark);
}

[data-theme="pctel"] .category-option {
  border-color: var(--text-light);
  border-radius: 0;
  color: var(--text-light);
}

[data-theme="pctel"] .todo-section__header {
  border-bottom-color: var(--text-light);
}

[data-theme="pctel"] .todo-section__title {
  border-bottom-color: var(--text-light);
}