.todo-container {
  max-width: 600px;
  margin: 2rem auto;
  background: var(--surface-color);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  padding: 2rem;

  h1 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
  }
}

.todo-input-group {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;

  input[type='text'] {
    flex-grow: 1;
    padding: 0.75rem;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: border-color 0.2s, box-shadow 0.2s;

    &:focus {
      outline: none;
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(103, 58, 183, 0.2);
    }
  }

  button {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: bold;
    color: var(--text-color-light);
    background-color: var(--primary-color);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.2s;

    &:hover:not(:disabled) {
      background-color: var(--primary-color-dark);
    }

    &:disabled {
      background-color: #ccc;
      cursor: not-allowed;
    }
  }
}

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

li {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  transition: background-color 0.2s;

  &:last-child {
    border-bottom: none;
  }

  &.completed .todo-title {
    text-decoration: line-through;
    color: #999;
  }
}

.todo-title {
  flex-grow: 1;
  cursor: pointer;
}

.btn-remove {
  background-color: transparent;
  border: none;
  color: var(--error-color);
  font-weight: bold;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 50%;
  line-height: 1;
  width: 30px;
  height: 30px;
  transition: background-color 0.2s, color 0.2s;

  &:hover {
    background-color: rgba(244, 67, 54, 0.1);
  }
}

footer {
  margin-top: 1.5rem;
  text-align: center;
  color: #777;
  font-size: 0.9rem;
}

.empty-state {
  text-align: center;
  padding: 2rem;
  color: #888;
  font-style: italic;
}

.list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);

  h1 {
    margin: 0;
  }
}

.btn {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: bold;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  text-align: center;
  transition: background-color 0.2s, opacity 0.2s;

  &:disabled {
    cursor: not-allowed;
    opacity: 0.6;
  }
}

.btn-primary {
  color: var(--text-color-light);
  background-color: var(--primary-color);

  &:hover:not(:disabled) {
    background-color: var(--primary-color-dark);
  }
}