body {
  background-color: #0f0f0f;
  font-family: Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
  color: white;
}

.container {
  background-color: #1a1a1a;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.4);
  width: 320px;
}

h1 {
  text-align: center;
  margin-bottom: 20px;
}

.input-container {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

#todo-input {
  flex: 1;
  padding: 10px;
  border-radius: 6px;
  border: none;
  background-color: #2a2a2a;
  color: white;
}

#todo-input::placeholder { color: #888; }

#add-task-btn {
  background-color: #7b2ff7;
  border: none;
  padding: 10px 15px;
  color: white;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}
#add-task-btn:hover { background-color: #6920d4; }

#todo-list { list-style: none; padding: 0; margin: 0; }

/* each task box */
.task {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #2a2a2a;
  padding: 10px;
  border-radius: 6px;
  margin-bottom: 10px;

  /* fade-in */
  opacity: 0;
  transform: translateY(-10px);
  animation: fadeIn 0.28s ease forwards;
}

/* style the text (span inside .task) */
.task > span {
  background: transparent; /* no red background */
  padding: 0;              /* no extra padding */
  border-radius: 0;
  color: #ffffff;          /* plain white text */
  font-size: 14px;
}


/* style the Delete button (plain button inside .task) */
.task > button {
  background-color: #ff4d4d;
  border: none;
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  color: white;
  transition: background-color 0.15s ease;
}
.task > button:hover { background-color: #cc0000; }

@keyframes fadeIn {
  to { opacity: 1; transform: translateY(0); }
}


/* fade-out animation (simple) */
.task.removing {
  animation: fadeOutSimple 220ms ease forwards;
}

@keyframes fadeOutSimple {
  to {
    opacity: 0;
    transform: translateX(12px) scale(0.98);
  }
}


.task.completed > span {
  text-decoration: line-through;
  opacity: 0.6;
}