.main {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.main > h1 { width: 100%; text-align: center; }

.todo-container {
  margin-top: 30px;
  width: 100%;
  max-width: 700px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.add-task-form {
  display: flex;
  gap: 10px;
  width: 100%;
}
#taskInput {
  flex-grow: 1;
  padding: 12px;
  font-size: 1rem;
  border-radius: 8px;
  border: 1px solid #ccc;
}
#addTaskBtn {
  padding: 12px 25px;
  font-size: 1rem;
  border: none;
  background-color: #4ecbff;
  color: black;
  border-radius: 8px;
  cursor: pointer;
  font-family: 'Fredoka One', sans-serif;
  transition: all 0.2s ease;
}
#addTaskBtn:hover { transform: translateY(-2px); }

#master-task-list {
  list-style: none;
  padding: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.task-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  background-color: white;
  border-radius: 10px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  flex-wrap: wrap; 
  border-left: 4px solid transparent;
}

.task-item .task-main {
  flex-grow: 1;
  display: flex;
  align-items: center;
  gap: 10px;
}
.task-item .task-checkbox {
  width: 18px;
  height: 18px;
}
.task-item .task-text {
  font-size: 1.1rem;
}

.task-item .task-details {
  font-size: 0.9em;
  color: #555;
  margin-left: 28px; 
  flex-basis: 100%;
  padding-top: 5px;
}
.task-item .deadline-input {
    margin-left: 5px;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 2px;
}

.task-item .task-actions {
  margin-left: auto; 
  display: flex;
  gap: 10px;
}
.task-item .task-actions button {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 22px;
  transition: transform 0.2s ease;
}
.task-item .task-actions button:hover {
  transform: scale(1.2);
}
.task-item .today-btn {
  color: #ccc; 
}
.task-item .delete-btn {
  color: #ff7c7c;
}

.task-item.is-today {
  border-left-color: #ffd000;
}
.task-item.is-today .today-btn {
  color: #ffd000; 
}
.task-item.is-done .task-text {
  text-decoration: line-through;
  color: #aaa;
}
.task-item.is-done {
    background-color: #f7f7f7;
}

.task-empty {
  text-align: center;
  padding: 20px;
  color: #888;
  font-style: italic;
  background-color: #f9f9f9;
  border-radius: 10px;
}

#clearCompletedBtn {
  padding: 10px 20px;
  font-size: 1rem;
  border: none;
  border-radius: 8px;
  background-color: #ffd000;
  color: black;
  font-family: 'Fredoka One', sans-serif;
  cursor: pointer;
  transition: all 0.2s ease;
}
#clearCompletedBtn:hover { transform: translateY(-2px); }

body.dark .task-item,
body.dark .task-empty {
  background-color: #2a2a2a;
  color: white;
  border-color: transparent;
}
body.dark .task-item.is-done {
    background-color: #222;
}
body.dark .task-item.is-done .task-text {
    color: #666;
}
body.dark .task-item.is-today {
  border-left-color: #ffd000;
}
body.dark .task-item .task-details {
    color: #999;
}
body.dark .task-item .deadline-input {
    background-color: #444;
    border-color: #555;
    color: white;
}