/* 全体レイアウト */
body {
  font-family: 'Segoe UI', sans-serif;
  background: #fdf6f6;
  color: #333;
  text-align: center;
  margin: 0;
  padding: 20px;
}

/* タイトル */
h1 {
  font-size: 2.5rem;
  color: #ff6b6b;
  margin-bottom: 20px;
}

/* フォーム全体 */
form#todo-form {
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  max-width: 700px;
  margin: 0 auto 30px;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

/* 各入力グループ */
.form-group {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.form-group label {
  font-weight: bold;
  margin-bottom: 5px;
  color: #555;
}

/* テキスト入力・テキストエリア・セレクト */
input[type="text"],
textarea,
input[type="date"],
select {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 1rem;
  width: 100%;
  box-sizing: border-box;
}

textarea {
  resize: vertical;
  min-height: 80px;
}

/* 追加ボタン */
#add-button {
  background: #ff6b6b;
  color: #fff;
  border: none;
  padding: 12px;
  font-size: 1.2rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s ease;
}

#add-button:hover {
  background: #ff4b4b;
}

/* Todoリスト */
#todo-list {
  list-style: none;
  padding: 0;
  max-width: 700px;
  margin: 0 auto;
}

#todo-list li {
  background: #fff;
  margin-bottom: 10px;
  padding: 15px;
  border-radius: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
  font-size: 0.95rem;
}

/* タイトル強調 */
#todo-list li strong {
  font-size: 1rem;
  margin-left: 0.5rem;
}

/* 期限表示 */
#todo-list li .due {
  font-size: 0.8rem;
  margin-left: auto;
}


#todo-list li .due.upcoming {
  color: gray;
}

#todo-list li .due.expired {
  color: red;
  font-weight: bold;
}


/* 優先度色分け */
li[data-priority="high"] {
  border-left: 6px solid #ff4d4d;
  background: #ffe5e5;
}

li[data-priority="medium"] {
  border-left: 6px solid #ffa500;
  background: #fff5e5;
}

li[data-priority="low"] {
  border-left: 6px solid #4caf50;
  background: #e5ffe5;
}

/* 完了済み */
li[data-done="true"] {
  opacity: 0.6;
}

li[data-done="true"] strong {
  text-decoration: line-through;
}


.button-group {
  text-align: center;
  margin: 20px;
}

#toggle-filter {
  background: #ff6b6b;
  color: #fff;
  border: none;
  padding: 12px 20px;
  font-size: 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s ease;
}

#toggle-filter:hover {
  background: #ff4b4b;
}



.todo-card {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: 20px;
  max-width: 500px;
  margin: 30px auto;
}

.todo-card .details {
  margin: 10px 0;
  font-size: 0.95em;
  color: #555;
  list-style: none;
  padding: 0;
}

.todo-card textarea {
  width: 100%;
  margin-top: 10px;
  padding: 8px;
  font-size: 1em;
}

#edit-button {
  background: #3498db;
  color: #fff;
}

#toggle-button {
  background: #2ecc71;
  color: #fff;
}

#back-button {
  background: #95a5a6;
  color: #fff;
}


#view-mode h2 {
  font-size: 1.8rem;
  color: #ff6b6b;
  margin-bottom: 10px;
}


#edit-mode {
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.form-group label {
  font-weight: bold;
  margin-bottom: 5px;
  color: #555;
}

/* 表示モードカード */
.todo-card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: 30px;
  max-width: 600px;
  margin: 30px auto;
  text-align: left;
}

.todo-card h2 {
  font-size: 2rem;
  color: #ff6b6b;
  margin-bottom: 15px;
}

.todo-card p {
  font-size: 1rem;
  margin-bottom: 15px;
  color: #555;
}

/* 詳細リスト */
.details {
  list-style: none;
  padding: 0;
  margin: 15px 0;
}

.details li {
  font-size: 1rem;
  margin: 10px 0;
}

.details li span {
  font-weight: bold;
  margin-right: 8px;
}

#todo-due span {
  color: #3498db;
}

#todo-priority span {
  color: #e67e22;
}

#todo-status span {
  color: #2ecc71;
}

/* ボタン共通 */
.buttons {
  display: flex;
  justify-content: space-between;
  margin-top: 20px;
}

.buttons button {
  flex: 1;
  margin: 0 8px;
  padding: 12px;
  font-size: 1rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  color: #fff;
}

#edit-button {
  background: #3498db;
}

#toggle-button {
  background: #2ecc71;
}

#back-button {
  background: #95a5a6;
}

/* 編集モードフォーム */
#edit-mode {
  background: #fff;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  max-width: 700px;
  margin: 30px auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.form-group label {
  font-weight: bold;
  margin-bottom: 8px;
  color: #555;
}

input[type="text"],
textarea,
input[type="date"],
select {
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 1rem;
  width: 100%;
  box-sizing: border-box;
}

textarea {
  resize: vertical;
  min-height: 80px;
}

/* 編集モードボタン */
#save-button {
  background: #3498db;
}

#back-button-edit {
  background: #95a5a6;
}

#delete-button {
  background: #ff6b6b;
}

.buttons button:hover {
  opacity: 0.9;
  transition: 0.3s;
}