* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: #f5f7fa;
  color: #333;
  line-height: 1.6;
}

/* 메인 */
.appContainer {
  max-width: 500px;
  margin: 20px auto;
  background: white;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

/* 헤더 */
.appHeader {
  background: linear-gradient(135deg, #e0f1c8 0%, #e8f1be 100%);
  color: rgb(40, 40, 40);
  padding: 20px;
  text-align: center;
}

.appTitle {
  font-size: 24px;
  margin-bottom: 8px;
  font-weight: 600;
}

.dateSelector {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
}
.dateInfo {
  font-size: 14px;
  opacity: 0.9;
}

/* 입력 */
.todoInputSection {
  padding: 20px;
  border-bottom: 1px solid #eee;
}

.todoForm {
  display: flex;
  gap: 10px;
}

.todoInput {
  flex: 1;
  padding: 12px 16px;
  border: 2px solid #e1e5e9;
  border-radius: 8px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.todoInput:focus {
  border-color: #e1f0c0;
}

.addButton {
  padding: 12px 20px;
  background: #eff3ca;
  color: rgb(41, 41, 41);
  border: none;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.2s;
}

.addButton:hover {
  background: #5a6fd8;
}

/* 진행상황 */
.todoProgress {
  padding: 15px 20px;
  background: #f8f9fa;
  border-bottom: 1px solid #eee;
}

.progressText {
  text-align: center;
  font-size: 14px;
  color: #666;
  font-weight: 500;
}

/* 목록 */
.todoListSection {
  min-height: 200px;
}

.todoList {
  list-style: none;
  padding: 0;
}

.todoItem {
  display: flex;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid #f0f0f0;
  transition: background-color 0.2s;
}

.todoItem:hover {
  background-color: #f8f9fa;
}

.todoLabel {
  display: flex;
  align-items: center;
  flex: 1;
  cursor: pointer;
}

.todoCheckbox {
  width: 18px;
  height: 18px;
  margin-right: 12px;
  cursor: pointer;
}

.todoText {
  font-size: 14px;
  line-height: 1.4;
  transition: all 0.2s;
}

/* 완료된 일 */
.todoItem.completed .todoText {
  text-decoration: line-through;
  color: #999;
}

.deleteBtn {
  background: none;
  border: none;
  font-size: 18px;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: background-color 0.2s;
}

.deleteBtn:hover {
  background-color: #fee;
}

/* 빈 상태 */
.emptyState {
  padding: 40px 20px;
  text-align: center;
  color: #999;
}

.hidden {
  display: none;
}